Delivery info

Delivery is generally
within 2-10 days, depending
on your location.

30 days returns

Return will not accepted if the product is opened or after use. All returns requests need to be within 30 days of when the original order was received. Original shipping costs will not be refunded.

BOSCH DirectConnect 40521 Wiper Blade - 21"






  • Exclusive fx dual rubber resists heat and ozone deterioration and proven to last up to 40% longer than other premium wiper blades
  • Patented beam design with shielded connector optimizes visibility even under extreme weather conditions
  • Exclusive tension spring arcing technology creates a fit thatā€™s custom-contoured to the curvature of each side of the windshield
  • Flexible asymmetric spoiler distributes uniform downward force along the entire blade to hold it firmly to the windshield at higher speeds




Bosch DirectConnect Conventional Wiper Blades feature a precision cut, natural rubber wiping edge that helps remove the smallest droplets for a clear view and added safety. DirectConnect is engineered for a simple, one-step installation process on 90% of vehicle applications - without the need for additional adapters. Rugged vented metal frame reduces wind lift to maintain blade contact at all speeds for clean and consistent performance. DirectConnect fits the most popular wiper arm types: 9x3mm Hook, 9x4mm Hook, 4.8mm (3/16 inch) Small Pin, 6.35mm (1/4 inch) Large Pin. Packaged with a rubber lip protector to ensure integrity of the wiping edge before installation - remove protector from wiper blade before use.

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Adapters IncludedNo
Attached Spoiler / AerofoilNo
Blade MaterialNatural Rubber
Blade TypeBracket
Frame ColorBlack
Frame MaterialSteel
Heated (Wiper Blade)No
Length21 in
Prop 65 Warning Label Required?No
Quick Connect Hardware IncludedYes
Wiper Blade DesignAll-Season
Wiping Edges1


  1. Choose the correct replacement wiper blades for your vehicle. You can either consult your vehicle owner's manual or use an online tool to find the right size and type of wiper blades.
  1. Lift the wiper arm away from the windshield, so it stays in the raised position.
  2. Locate the release tab or button on the wiper blade. This is typically near the connection point where the blade meets the wiper arm.
  3. Press the release tab or button and slide the old wiper blade off the wiper arm. Be careful not to let the arm snap back onto the windshield, as this can cause damage.
  4. Align the new wiper blade with the wiper arm and slide it into place until you hear a click. Ensure that the wiper blade is securely attached to the arm.
  5. Lower the wiper arm back onto the windshield gently, making sure that the wiper blade is properly positioned and in contact with the glass.
  6. Repeat these steps for the other wiper blade, as necessary.
  7. Test the new wiper blades by turning on the windshield wipers and observing their movement across the windshield. If they are not working properly, check to make sure they are securely attached and in the correct position.



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