W21W WY21W 7440 25W LED Canbus Resistors

  • What's Included: 2 Resistors
  • Condition: Brand new
  • Part numbers: W21W, WY21W, 582, 585, 7440
  • Used for: Indicator, Daytime Running Lights (DRL), Reversing bulbs
  • Used with: LED bulbs
  • Stop flickering or O.B.C. errors
  • Warranty: 6 months


A pair of 25W LED canbus resistors with W21W, WY21W, 7440 socket for 582, 585 LED bulbs.

If you are getting warning errors on car's dashboard, fast blinking after installing LED bulbs, then this is what you need.

These LED Resistors also known as warning cancellers are perfect solution for these problems. It comes with connectors so you will not need to cut any wires, just plug and play. 

If you have T20 socket bulbs with these part numbers W21W, WY21W, 7440, 582. 585 it will fit to your car.

Some car models have very sensitive ECU (On-Board Computer) and require two pieces of these resistors per side.

Specifications & Features

  • Part numbers: W21W, WY21W, 7440, 582, 585
  • Socket: T20, Single Filament, Wedge
  • Fit: Daytime Running Lights (DRL), Indicator, Turn Signal, Reversing Bulbs
  • Direct Replacement, Plug and Play

Additional Information

Condition No
Ring Size No

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