We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small black rectangular relay with ten metal pins protruding from base

Unique-Bargains

Unique-Bargains LM487 10-Pin LED Flasher Relay 10383321

SKU CH-4J9G-AD76T

Ten-pin LED flasher relay replaces OE 10383321 on 2003-2007 GM trucks and SUVs

  • Direct-fit replacement for OE 10383321 and 15764135
  • Ten-pin LED flasher relay restores turn-signal and hazard operation
  • Fits Cadillac Escalade, GMC Sierra and Yukon, Chevrolet Silverado, Suburban, Tahoe, Avalanche and Hummer H2
  • Built to original dimensions for straightforward installation
  • Single relay supplied — verify vehicle model and OE number before fitting

Replacement Flasher for GM Trucks and SUVs

This 10-pin LED flasher relay replaces OE numbers 10383321 and 15764135 on a wide range of GM trucks and SUVs from 2003 to 2007. It restores proper turn-signal and hazard flashing on Cadillac Escalade, GMC Sierra, Yukon, Chevrolet Silverado, Suburban, Tahoe, Avalanche and Hummer H2 models.

Direct Fit for 2003-2007 Platforms

The relay covers 1500, 2500 and 3500 series pickups plus their SUV counterparts across the listed model years. It will not fit vehicles outside this GM truck platform or newer model years that use a different pin layout or electronic control strategy.

Sturdy Construction with Simple Plug-In Install

Manufactured to original dimensions, the unit slots into the factory socket without wiring modifications. The package includes one relay; confirm your vehicle’s OE number before fitting and refer to a relevant installation video if you are unfamiliar with the fuse-panel location.

Highlights

  • Direct-fit replacement for OE 10383321 and 15764135
  • Ten-pin LED flasher relay restores turn-signal and hazard operation
  • Fits Cadillac Escalade, GMC Sierra and Yukon, Chevrolet Silverado, Suburban, Tahoe, Avalanche and Hummer H2
  • Built to original dimensions for straightforward installation
  • Single relay supplied — verify vehicle model and OE number before fitting

Specifications

BrandUnique Bargains

Questions about this item

Will this 10-pin LM487 relay fit the existing socket on my 2003-2006 Chevrolet Silverado 1500?

Yes, it is manufactured to original dimensions for the listed GM trucks and SUVs from 2003-2006, including the Silverado 1500, so it plugs directly into the factory 10-pin socket.

How can I confirm the LM487 flasher is operating correctly once installed?

Activate the turn signals and hazard switch; the relay should produce a steady click and the lamps must flash at the normal rate without rapid cycling or staying solid.

Does the box contain only the 10383321 relay or are connectors and tools included?

The package includes 1x flasher relay only; no wiring harness, pigtail connectors or installation tools are supplied.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.