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Purolator invented the automotive oil filter in 1923 and has been refining the technology ever since. With three distinct product lines, here's which Purolator filter is right for your vehicle and driving habits.

Purolator Classic (Entry Level)

The workhorse of the Purolator lineup. Reliable filtration for standard oil change intervals. The Classic meets or exceeds OEM specifications and is a solid choice for drivers changing oil every 3,000-5,000 miles.

• Filtration efficiency: ~98% at 30 microns
• Change interval: 3,000-5,000 miles (conventional oil)
• Best for: Budget-conscious drivers, frequent oil change intervals, older vehicles

Purolator PureONE (Premium)

Purolator's flagship consumer filter. The PureONE uses a proprietary synthetic blend media that captures 99.9% of harmful contaminants - one of the highest efficiency ratings in the industry. Designed for extended drain intervals up to 15,000 miles with full synthetic oil.

• Filtration efficiency: 99.9% at 25-30 microns
• Change interval: Up to 15,000 miles with full synthetic
• Anti-drain back valve: Silicone - better cold-weather performance than rubber
• Best for: Synthetic oil users, extended drain intervals, modern engines

Purolator BOSS (Maximum Performance)

The highest-performing filter in the Purolator lineup. The BOSS uses advanced synthetic media with 99.9% efficiency at 20 microns - capturing finer particles than the PureONE. Designed for up to 20,000 miles with full synthetic oil.

• Filtration efficiency: 99.9% at 20 microns
• Change interval: Up to 20,000 miles
• Construction: All-metal end caps, heavy-duty steel shell
• Best for: Performance vehicles, extended drain intervals, turbocharged engines

Purolator vs Mobil 1 vs Fram

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We carry Purolator Classic, PureONE, and BOSS filters for all vehicle makes and models.

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NGK manufactures more spark plugs than any other company in the world - and for good reason. Their iridium and platinum plugs set the standard for OEM and aftermarket ignition. Here's how to choose the right plug for your vehicle.

Spark Plug Types: Copper vs Platinum vs Iridium

Copper Core Plugs (Standard)

Traditional spark plugs with a copper core and nickel alloy electrode. Excellent thermal conductivity - runs cooler than precious metal plugs. Good performance but shorter service life (15,000-30,000 miles).

• Best for: Older vehicles (pre-1990s), performance/racing applications (replaced frequently), vehicles that spec conventional plugs
• Change interval: 15,000-30,000 miles

Platinum Plugs (Mid-Range)

Platinum tip on the center electrode (single platinum) or both center and ground electrode (double/twin platinum). Significantly longer life than copper.

• Service life: 60,000 miles (single), 100,000 miles (double)
• Best for: Modern vehicles specifying platinum plugs, good balance of performance and longevity

Iridium Plugs (Premium)

Iridium is harder and has a higher melting point than platinum - allowing a finer electrode tip (0.6mm vs 1.1mm for platinum) that produces a more focused spark and easier ignition. NGK's iridium plugs consistently outperform in cold-start performance and fuel efficiency testing.

• Service life: 60,000-100,000 miles
• Best for: Modern direct injection engines, turbocharged engines, maximum cold-start performance, OEM replacement on vehicles specifying iridium
• NGK iridium lines: Iridium IX (performance), Laser Iridium (OEM replacement), Ruthenium HX (premium)

NGK Part Number System

NGK part numbers encode the plug's specifications:

• First letters: Thread configuration and reach (B = 14mm, D = 12mm)
• Number after letters: Heat range (lower = hotter, higher = colder)
• Final letter(s): Construction details (R = resistor, IX = iridium, etc.)

Example: BKR6EIX = 14mm thread (B), tapered seat (K), resistor (R), heat range 6, projected tip (E), iridium (IX)

Heat Range: Critical for Performance

Using the wrong heat range causes problems:

• Too hot (lower number): Pre-ignition, detonation, melted electrodes
• Too cold (higher number): Fouling, carbon buildup, rough idle, misfire

Always use the heat range specified by your vehicle manufacturer. Only change heat range for modified engines with significantly different combustion temperatures.

How to Install Spark Plugs Correctly

1. Allow engine to cool completely - never remove plugs from a hot engine
2. Clean around plug wells before removal - prevents debris from entering cylinders
3. Apply anti-seize compound on threaded plugs (but not iridium - NGK recommends dry installation on iridium)
4. Hand-tighten until snug, then torque to spec (typically 13-20 ft-lbs for 14mm plugs)
5. Never use an impact wrench - stripped threads in aluminum heads are expensive

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We carry NGK copper, platinum, iridium, and ruthenium spark plugs for all vehicle makes and models.

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When it comes to car batteries, Interstate and East Penn Deka dominate the professional installer and OEM market. Here's a detailed comparison to help you choose.

East Penn Manufacturing (Deka Brand)

East Penn Manufacturing is one of the largest battery manufacturers in North America - but unlike most brands, they manufacture their own batteries rather than rebadging from overseas. Their Deka brand is the OEM supplier for multiple vehicle manufacturers and is widely respected for consistent quality.

Deka Strengths

• Made in USA - East Penn's Lyons Station, PA facility is one of the largest battery plants in the world
• OEM supplier - original equipment for multiple automakers and equipment manufacturers
• Consistent quality - manufacturing control means less variability between batches
• Wide range - conventional flooded, AGM, and deep cycle in all group sizes

Deka Product Lines

• Deka Power (standard flooded): Reliable everyday battery at competitive price
• Deka Intimidator (AGM): Premium AGM for start-stop vehicles, high-electrical-demand applications
• Deka Marine/RV: Deep cycle and dual-purpose for marine and recreational use

Interstate Batteries

Interstate is the most recognized battery brand in America, with the largest distribution network of any battery company. They don't manufacture batteries - they source from East Penn, Exide, and other manufacturers, then apply their brand and warranty support.

Interstate Strengths

• Distribution: Available at 200,000+ locations nationwide - unmatched accessibility
• Warranty support: Strong national warranty program with widespread service centers
• Brand recognition: Most mechanics and consumers recognize the Interstate name

Interstate Product Lines

• MTP (Mega-Tron Plus): Entry-level replacement battery
• MTX (Mega-Tron Xtreme): Mid-range with higher CCA
• AGM: For start-stop and high-demand vehicles

Head-to-Head Comparison

Which Should You Choose?

• Choose Deka if: You want OEM-quality manufacturing, consistent performance, and are comfortable with slightly less widespread warranty support
• Choose Interstate if: Warranty coverage and nationwide service access matter most, or you need a battery available anywhere

Both brands are excellent choices. For most drivers, price and availability will be the deciding factors.

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We carry both brands in all standard group sizes including flooded, AGM, and deep cycle configurations.

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Berryman B-12 Chemtool has a cult following among mechanics for good reason - it's one of the strongest fuel system cleaners available without a parts washer. Here's what it does, when to use it, and how to get the best results.

What Is Berryman B-12 Chemtool?

B-12 Chemtool is a high-energy solvent-based fuel system cleaner containing a blend of aggressive solvents that dissolve varnish, gum, carbon deposits, and water contamination throughout the fuel system. It's significantly more aggressive than typical "pour in the tank" fuel additives.

Berryman B-12 Chemtool Products

B-12 Chemtool Carburetor, Fuel System & Injector Cleaner (0117)

The original and most popular. Add to a full tank of gasoline to clean injectors, carburetors, intake valves, and combustion chambers. Most effective when added just before an oil change - the dissolved deposits pass through and get captured by the oil filter.

• Use: Add 15 oz to a full tank of gas (up to 21 gallons)
• Frequency: Every 3,000 miles or with each oil change
• Best results: Run the tank down to near-empty, then change oil - gets maximum concentration through the system

B-12 Chemtool Carburetor Cleaner Spray

Fast-acting spray for cleaning carburetors, choke valves, throttle bodies, and PCV valves externally. Dissolves gum and varnish on contact. Use with engine off for heavy cleaning, with engine running for light cleaning of throttle bodies.

B-12 Chemtool Brake Cleaner

Non-chlorinated formula for cleaning brake components, clutch parts, and metal surfaces. Similar to CRC Brakleen in performance.

When B-12 Chemtool Actually Works

B-12 is effective for:

• Rough idle caused by varnish deposits on injectors
• Hesitation and stumbling on acceleration
• Poor fuel economy from carbon buildup
• Stored vehicle fuel system cleaning (varnish from old gas)
• Preventing deposit buildup with regular use

B-12 is NOT effective for:

• Failed injectors (mechanical failure)
• Severely clogged injectors requiring professional ultrasonic cleaning
• Fuel pump failure
• Vacuum leaks causing rough idle

B-12 vs Other Fuel System Cleaners

B-12 Chemtool is generally considered more aggressive than Techron or Sea Foam due to its higher solvent concentration. For regular maintenance, any of the three work well. For a stuck or heavily varnished carburetor or throttle body, B-12 spray is usually the most effective single product.

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We carry Berryman B-12 Chemtool fuel system cleaner, carburetor spray cleaner, and brake cleaner.

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Liqui Moly is Germany's most award-winning motor oil brand - 10+ consecutive years as #1 in German car owner surveys. Here's what makes it different and which products are worth buying.

Why Liqui Moly Is Different

Most major oil brands are subsidiaries of oil companies (Mobil = ExxonMobil, Castrol = BP, Valvoline = Ashland). Liqui Moly is independent - a specialty chemical company focused exclusively on motor oil and automotive additives. This independence means they're not optimizing for crude oil sales; they formulate purely for performance.

Top Liqui Moly Engine Oils

Liqui Moly Molygen New Generation

Liqui Moly's flagship oil, featuring MolyGen technology - MoS2 (molybdenum disulfide) particles that form a protective film on engine surfaces. Delivers measurably lower wear than comparable oils in controlled testing. Available in 5W-30, 5W-40, 0W-20, 0W-30.

Liqui Moly Special Tec AA 5W-30

Specifically formulated for American and Asian vehicles requiring ILSAC GF-6 / dexos1 Gen 2 approval. Meets GM, Ford, and Chrysler specifications. The go-to for American cars driven by European-oil enthusiasts.

Liqui Moly Leichtlauf (Low Friction)

High-performance 5W-40 meeting European specs (VW 502.00/505.00, BMW LL-01, MB 229.3). The standard recommendation for BMW, Mercedes, Audi, and Porsche owners in markets outside North America.

Top Liqui Moly Additives

Liqui Moly MoS2 Anti-Friction Engine Treatment

Add-to-oil treatment containing MoS2 solid lubricant. Reduces friction measurably - 15-20% friction reduction in testing. Add at every oil change for ongoing protection. Particularly effective in high-mileage engines showing increased oil consumption.

Liqui Moly Oil Saver

Reduces oil consumption in engines burning or leaking oil. Conditions valve stem seals and piston rings. Not a permanent fix for major leaks, but effective for minor consumption issues in aging engines.

Liqui Moly Diesel Purge

Concentrated diesel injector cleaner used as a pre-service treatment. Run the engine on a diluted Diesel Purge mixture to dissolve injector deposits - often restores power and fuel economy without disassembly.

Is Liqui Moly Worth the Premium?

Liqui Moly typically costs 20-40% more than comparable Mobil 1 or Castrol. For most drivers, Mobil 1 performs similarly at lower cost. Liqui Moly is worth the premium for:

• European vehicles requiring specific VW/BMW/MB specs
• High-performance or turbocharged engines
• Drivers who extend oil change intervals beyond 10,000 miles
• High-mileage engines that benefit from MoS2 additives

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We carry Liqui Moly engine oils, additives, diesel treatments, and specialty automotive chemicals.

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Permatex has been making automotive sealants and gasket compounds since 1909. With dozens of products in their lineup, here's exactly which one to reach for every time.

RTV Silicone Gasket Makers

Permatex Ultra Black (Most Popular)

The #1 selling RTV silicone gasket maker. Sensor-safe, low-odor formula. Resists engine fluids and temperatures up to 500�F. The go-to for oil pans, valve covers, timing covers, and differential covers.

• Temperature range: -65�F to +500�F
• Best for: Oil pan gaskets, valve cover gaskets, timing covers, differential covers
• Sensor safe: Yes - won't damage O2 sensors

Permatex Ultra Copper

High-temp RTV for applications exceeding Ultra Black's range. The copper color is iconic - often specified by manufacturers for extreme heat zones.

• Temperature range: -65�F to +700�F intermittent
• Best for: Exhaust manifold gaskets, high-performance engine applications, turbo outlets

Permatex Ultra Grey

Rigid, high-torque formulation that won't squeeze out under bolt pressure. Ideal for rigid flanges where the gasket needs to maintain its thickness.

• Best for: Transmission pans, axle housings, rigid metal-to-metal flanges

Permatex Blue RTV (Form-A-Gasket)

Original Permatex blue silicone. Best for supplementing (not replacing) paper and cork gaskets - apply a thin bead where gaskets tend to seep at the corners.

Thread Sealants & Compounds

Permatex Thread Sealant with PTFE

Prevents leaks on NPT pipe threads, hydraulic fittings, and fuel system fittings. The PTFE formula lubricates during assembly and seals under pressure. Temperature rated to 400�F.

Permatex High-Temperature Thread Compound

Anti-seize and thread sealant for spark plugs, exhaust studs, and oxygen sensor threads. Prevents galling and seizing on high-temperature fasteners - essential for aluminum heads.

Gasket Removers & Prep

Permatex Gasket Remover Spray

Chemical gasket remover that softens and loosens old gasket material. Spray on, wait 10-15 minutes, scrape off - dramatically reduces cleanup time vs mechanical removal alone.

Which Permatex for Common Jobs

Application Tips

• Clean surfaces thoroughly - old RTV or gasket material must be completely removed
• Apply a continuous 1/8" bead - inside bolt holes, not outside them
• Assemble within 10 minutes of application - skin forms quickly
• Wait 1 hour before adding fluids, 24 hours before full pressure testing

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We carry the complete Permatex lineup including Ultra Black, Ultra Copper, Ultra Grey, thread sealants, and gasket removers.

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JB Weld is the most trusted name in adhesive repairs. But with dozens of products in their lineup, choosing the right one can be confusing. Here's a clear guide to which JB Weld product works best for each repair situation.

JB Weld Original (The Classic)

The original two-part epoxy that started it all in 1969. Mix equal parts of the two tubes, apply, and let cure for 15-24 hours. Full cure strength: 5020 PSI tensile strength - stronger than most metals it bonds.

• Cure time: Sets in 4-6 hours, full cure in 15-24 hours
• Temperature resistance: Up to 550�F continuous, 600�F intermittent
• Best for: Metal repairs, engine block repairs, transmission cases, structural bonding
• Not ideal for: Flexible materials, situations requiring fast cure

JB Weld KwikWeld (Fast Version)

Same chemistry as original JB Weld but cures in 6 minutes (set) vs 4 hours. Lower final strength (3127 PSI) than the original - the trade-off for speed. Good for non-structural repairs when you need results fast.

JB Weld SteelStik (Putty Epoxy)

A kneadable epoxy putty that hardens like steel. Mix by hand (no mess, no mixing cups) and apply to fill holes, cracks, and voids. Can be drilled, tapped, filed, and painted after curing.

• Best for: Filling rust holes, repairing radiator end tanks, sealing exhaust manifold cracks, plugging holes in metal
• Temperature resistance: Up to 300�F
• Working time: 3-5 minutes before it starts hardening

JB Weld ExtremeHeat (High Temperature)

Specifically formulated for high-temperature applications. Withstands up to 2400�F after full cure - suitable for exhaust systems, manifolds, and turbo components.

• Best for: Exhaust manifold repairs, muffler patching, header leaks, catalytic converter sealing
• Note: Requires heat curing - gradually heat the repaired area to full operating temperature before use

JB Weld PlasticWeld

Specifically formulated to bond plastics - standard epoxies don't adhere well to most plastics. Works on PVC, ABS, fiberglass, and most automotive plastics.

• Best for: Plastic bumper repairs, interior trim, PVC pipe, fiberglass body work
• Tensile strength: 3900 PSI on plastic

JB Weld WaterWeld

Underwater-curing epoxy putty - the only JB Weld product that cures in wet or submerged conditions. Essential for radiator repairs, coolant system leaks, and any repair that can't be dried out first.

• Best for: Radiator plastic end tank repairs, heater core bypass, pool plumbing, wet surface bonding
• Temperature resistance: Up to 300�F after cure

Quick Reference: Which JB Weld for Your Repair?

Pro Tips for Better JB Weld Results

• Surface prep is everything - clean, degrease, and roughen the surface with sandpaper before applying
• Temperature matters - cure faster by warming the repair area (not too hot) or allow longer cure time in cold weather
• Clamp when possible - even light clamping pressure improves bond strength significantly
• Full cure before stress - overnight cure before putting the repair under load

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We carry the complete JB Weld lineup including Original, KwikWeld, SteelStik, ExtremeHeat, WaterWeld, and PlasticWeld.

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Southwire is North America's largest wire and cable manufacturer. Their automotive and marine wire products are trusted by OEMs, boat builders, and professional installers worldwide. Here's how to choose the right wire for your application.

Automotive Wire Types

GPT Wire (General Purpose Thermoplastic)

The standard for automotive wiring. PVC insulation rated for 60�C (140�F) continuous use. Available in all standard gauges from 22 AWG to 2 AWG. Suitable for interior wiring, accessory circuits, and protected underhood runs.

• Temperature rating: 60�C (140�F)
• Voltage rating: 60V
• Best for: Interior wiring, trailer lights, accessory installations, protected runs
• Not for: Direct underhood exposure near exhaust or extreme heat zones

GXL Wire (Cross-Linked Polyethylene)

Upgraded underhood wire with cross-linked polyethylene insulation - significantly more heat resistant than GPT. The industry standard for underhood primary wire.

• Temperature rating: 125�C (257�F)
• Voltage rating: 60V
• Best for: Underhood wiring, engine bay accessories, circuits near heat sources
• Advantage over GPT: Won't melt or shrink back from terminals in high-heat zones

SXL Wire (Standard Cross-Linked)

Similar to GXL but with a slightly thicker insulation wall for added abrasion resistance. Preferred for runs through grommets, metal conduit, or areas with potential chafing.

• Temperature rating: 125�C (257�F)
• Best for: Applications where abrasion resistance matters alongside heat resistance

Marine Wire

Tinned Copper Marine Wire (ABYC Standard)

For any boat or marine application, always use tinned copper wire. Bare copper corrodes rapidly in salt and humid marine environments - you'll see green corrosion at connections within months. Tinned wire (copper with a thin tin coating) resists corrosion for decades.

• Standard: ABYC E-11 (American Boat & Yacht Council)
• Insulation: Type 3 stranded (finely stranded for flexibility), UL 1426 rated
• Temperature rating: 60�C or 105�C depending on grade
• Best for: All marine DC wiring - bilge pumps, navigation lights, electronics

Wire Gauge Selection Guide

For 12V DC systems with max 3% voltage drop:

Wire Stranding: Solid vs Stranded

Always use stranded wire for automotive and marine applications - never solid wire. Solid wire work-hardens and breaks from vibration. Stranded wire flexes without fatigue. The finer the stranding (more strands of thinner wire), the more flexible and vibration-resistant.

Shop Southwire Automotive & Marine Wire

We carry Southwire GPT, GXL, SXL automotive wire and tinned copper marine wire in all gauges and colors.

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Every electrical circuit in your vehicle needs overcurrent protection. Eaton Bussmann is the industry standard for automotive fuses and fuse blocks - here's how to choose the right protection for every application.

Automotive Fuse Types Explained

Blade Fuses (Most Common)

The standard for modern vehicles since the 1980s. Color-coded by amperage for easy identification.

• Mini blade (ATM): Smallest size, used in compact fuse boxes on motorcycles and modern cars
• Standard blade (ATC/ATO): Most common size for vehicles 1980-present. ATC has a closed body; ATO is open - both are interchangeable
• Maxi blade (APX): High-current applications (30-100A) - main fuse box feeds, fan relays, alternator circuits

Blade Fuse Color Code

ANL Fuses (High-Current)

Bolt-down fuses for very high current applications - battery cables, inverter feeds, audio amplifiers, winches. Available from 80A to 500A. Must be mounted within 18 inches of the battery.

MIDI Fuses

Mid-range between blade and ANL. 30-200A range. Common in automotive audio, solar charge controller wiring, and auxiliary battery systems.

Glass Tube Fuses (AGC/AGU)

Older format still used in some marine applications, vintage vehicles, and aftermarket accessories. AGC is the standard glass fuse; AGU is a larger diameter version used in high-current inline fuse holders.

Eaton Bussmann Fuse Blocks

ATC/ATO Blade Fuse Blocks

Multi-circuit fuse distribution blocks for custom wiring. Available in 4, 6, 8, 10, and 12-circuit versions. Essential for any custom build - provide a clean, organized power distribution point for accessories.

MIDI/ANL Fuse Holders

Inline holders for high-current feeds. Waterproof options available for underhood and exterior mounting. Always use a proper holder - never run high-current cable without overcurrent protection.

Fuse Sizing Rules

• Fuse the wire, not the device - size the fuse to protect the wire gauge, not the accessory
• Wire sizing guide: 20 AWG = 5A max, 18 AWG = 10A, 16 AWG = 15A, 14 AWG = 20A, 12 AWG = 30A, 10 AWG = 40A
• Place fuses as close to the power source (battery) as practical - within 18 inches for ANL/MIDI
• Never replace a blown fuse with a higher-rated fuse - find the short first

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We carry the complete Eaton Bussmann lineup including blade fuses, ANL fuses, MIDI fuses, fuse blocks, and inline fuse holders.

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If you've worked on any American vehicle from the 1980s onward, you've encountered Aptiv WeatherPack connectors. Originally developed by Delphi (now Aptiv), WeatherPack is one of the most widely used weatherproof connector systems in the automotive industry. Here's everything you need to know.

What Are WeatherPack Connectors?

WeatherPack connectors are a sealed, single-wire-seal connector system designed for automotive underhood and chassis applications. Unlike Deutsch connectors that use a cavity seal, WeatherPack seals each individual wire with a silicone seal at the rear of the terminal - then the connector body itself adds a secondary seal at the mating face.

This dual-sealing approach makes WeatherPack extremely reliable in wet environments, and the system's simplicity makes it easy to repair with widely available replacement parts.

WeatherPack vs Deutsch DT: Key Differences

WeatherPack Series Overview

Standard WeatherPack (12-18 AWG)

The original and most common WeatherPack. Used for sensors, switches, and moderate current circuits. Available in 1, 2, 3, 4, and 6-position configurations.

• Current rating: 10A per terminal
• Wire range: 18-12 AWG
• Common colors: Natural (gray), black

Junior Power Timer (JPT) WeatherPack

Heavier-duty version for higher current applications. Uses larger terminals rated to 20A.

• Current rating: 20A per terminal
• Wire range: 16-10 AWG
• Common use: Fuel injector connectors on many GM/Ford applications, solenoid feeds, relay outputs

Micro WeatherPack

Smaller version for fine-gauge wire and space-constrained applications. Common on late-model vehicles with high-density wiring.

WeatherPack Pigtails: The Fastest Repair Solution

WeatherPack pigtails are pre-assembled connector assemblies with the terminal already crimped to a wire lead. For OEM repairs, a pigtail is almost always faster than rebuilding the connector from scratch:

1. Cut the damaged connector from the harness
2. Splice the pigtail leads to the harness wires using heat shrink solder connectors
3. Done - factory-correct connection restored in minutes

Most Common WeatherPack Pigtail Applications

• Oxygen sensors (O2 sensor connectors): 4-wire WeatherPack pigtails for wideband and narrowband O2 sensors on GM, Ford, and Chrysler
• Fuel injectors: JPT 2-pin pigtails - one of the most commonly replaced connectors on high-mileage vehicles
• Coolant temperature sensors: 2-pin WeatherPack on most GM vehicles
• MAP/MAF sensors: 3 and 4-pin configurations
• Idle air control (IAC) valves: 2-pin JPT connectors
• Throttle position sensors (TPS): 3-pin WeatherPack

How to Identify WeatherPack Connectors on Your Vehicle

• Look for a gray or black plastic connector with individual rubber seals visible at the rear of each wire entry
• The connector face (mating surface) has a raised rubber seal ring
• WeatherPack connectors have a secondary lock - a small plastic TPA (terminal position assurance) clip that clips over the terminal
• GM vehicles: WeatherPack is used extensively from the 1980s onward on virtually all sensor, injector, and actuator connections

Assembly & Repair Tips

• Use the correct crimp tool - WeatherPack terminals require a specific crimp profile. The Aptiv/Delphi 12085111 crimp tool is the OEM standard.
• Install wire seal before crimping - thread the wire through the seal, then crimp the terminal. Seals cannot be installed after crimping.
• Insert TPA after all terminals seated - the TPA locks all terminals in place. It should click in fully - if it doesn't, a terminal isn't seated correctly.
• Apply dielectric grease sparingly to the mating face seal in extreme moisture environments.

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We carry Aptiv WeatherPack connectors in standard and JPT configurations, pre-assembled pigtails for common OEM applications, individual terminals, wire seals, and TPA clips.

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Need to connect high-current circuits - battery feeds, winch power, alternator wiring, or heavy motor connections - in a weatherproof, vibration-resistant connector? The Deutsch DTP series is built for exactly that.

What Is the Deutsch DTP Series?

The DTP (Deutsch Power) series is a compact, high-current connector handling up to 100A per contact. It bridges the gap between the moderate power of the DT/HDP20 series and the bulk of terminal studs and lugs - giving you a quick-disconnect, weatherproof, properly rated power connection in a relatively compact form factor.

DTP Specifications

• Current rating: Up to 100A per contact (size 4 contacts, 2-1 AWG wire)
• Voltage rating: 600V
• IP rating: IP67
• Temperature range: -40�F to +257�F
• Pin configurations: 2-position (most common), 4-position
• Contact sizes: Size 4 (100A, 2-1 AWG) and Size 8 (70A, 8-4 AWG)
• Locking: Positive latch with secondary lock

DTP vs Other High-Current Options

DTP Common Applications

• Winch power connections: 12V winches drawing 400-500A peak need heavy leads, but the DTP on the control circuit handles the solenoid feed cleanly
• Auxiliary battery connections: Disconnect/reconnect second battery or lithium auxiliary pack without tools
• Electric motor feeds: Bilge pumps, trim tab motors, anchor windlasses
• Generator/shore power: Quick-disconnect for portable generator feeds
• EV/hybrid auxiliary circuits: 12V accessory feeds in electrified vehicles

DTP Assembly Tips

• Size 4 contacts require a heavy-duty crimp tool - the standard Deutsch crimper will not work
• Use proper wire ferrules or tin the wire ends before crimping size 4 contacts
• Apply anti-oxidant compound on aluminum wire before crimping
• The 2-position DTP is polarity-keyed - it cannot be connected backwards
• Always fuse within 18 inches of the power source when using DTP for battery connections

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We carry DTP 2-position and 4-position assemblies, size 4 and size 8 contacts, and accessories.

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When space is tight but you still need Deutsch-grade waterproof reliability, the DTM series is your answer. Here's a complete guide to the miniature version of the world's most trusted automotive connector.

What Is the Deutsch DTM Series?

The DTM (Deutsch Miniature) series offers the same IP67 waterproof protection and vibration resistance as the full-size DT series in a significantly smaller and lighter package. Where a DT connector is designed for 12-20 AWG wire, the DTM handles finer gauges (22-20 AWG) with contacts rated at 7.5A each.

DTM vs DT: Key Differences

DTM Applications

• Motorcycles & powersports: Ideal for tight routing on bikes, ATVs, UTVs, and snowmobiles where DT connectors won't fit
• Drones & UAVs: Weight-critical applications needing weatherproof connections
• Precision agricultural sensors: Soil sensors, GPS antennas, small actuators
• Marine electronics: Chart plotters, depth finders, VHF radio connections
• Custom automotive: ECU sensor wiring, O2 sensor extensions, data logging connections

DTM Assembly Notes

• Uses size 20 contacts - requires the W-HT-450-F crimp tool (different from DT's W-HT-1921)
• Same wedge lock system as DT - slide in after contacts are seated
• Sealing plugs available for unused cavities - essential for maintaining IP67 rating
• DTM contacts are not interchangeable with DT contacts - different sizes

Shop Deutsch DTM Connectors

We carry DTM housings, size 20 contacts, wedge locks, sealing plugs, and complete DTM kits.

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