{"product_id":"jweely-lm487-led-flasher-relay-for-chevy-gmc-2003-2006-10-pin-direct-fit-stops-hyper-flash","title":"JWEELY LM487 LED Flasher Relay for Chevy\/GMC 2003-2006 — 10‑Pin Direct Fit, Stops Hyper‑Flash","description":"\u003cp\u003e\u003cstrong\u003eThe JWEELY LM487 LED flasher relay restores correct turn-signal timing and resolves hyper-flash or non‑functioning indicators on compatible 2003–2006 GM trucks and SUVs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Silverado, Sierra, Yukon or Avalanche from the 2003–2006 model years started hyper‑flashing, stopped signaling, or behaves oddly after switching to LED bulbs, this direct-fit replacement flasher relay is built to match the OE electrical behavior. Designed to replace LM487 and related OEM part numbers (10383321, 15231201, 15764135), the unit is a 10‑pin plug‑in module constructed with durable PP housing, meeting or exceeding factory specifications while restoring reliable turn signal performance without adding resistors.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this relay stop my turn signals from hyper‑flashing?\u003c\/h3\u003e\n\u003cp\u003eThe LM487 is engineered to mimic the original flasher module’s timing and load detection so the vehicle’s circuit senses the proper resistance even when low‑draw LED bulbs are used. By replacing a worn or incompatible relay with this unit, the flasher returns to normal cadence instead of rapid flashes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for LM487, 10383321, 15231201 and 15764135.\u003c\/li\u003e\n  \u003cli\u003e10‑pin configuration matches factory connector for plug‑and‑play install.\u003c\/li\u003e\n  \u003cli\u003eNo external load resistors required for LED conversions in supported models.\u003c\/li\u003e\n  \u003cli\u003eRestores correct flash rate and indicator behavior.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and years is this module compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis JWEELY relay covers a wide range of GM pickups and SUVs from 2003 through 2006 and selected 2007 H2 entries, matching the electrical harness and mounting style of the originals. Check your vehicle’s OEM part number to confirm fitment before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChevy: Silverado (1500, 1500 HD, 2500, 2500 HD, 3500), Avalanche 1500\/2500, Tahoe, Suburban (1500\/2500) 2003–2006.\u003c\/li\u003e\n  \u003cli\u003eGMC: Sierra 1500\/2500\/3500, Sierra HD, Yukon\/Yukon XL, 2003–2006 models.\u003c\/li\u003e\n  \u003cli\u003eCadillac \u0026amp; Hummer: Escalade 2003–2006, H2 2003–2007 compatibility noted.\u003c\/li\u003e\n  \u003cli\u003eOEM cross references included for quick verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials, quality checks, and durability can I expect?\u003c\/h3\u003e\n\u003cp\u003eJWEELY builds the LM487 replacement from high‑quality polypropylene housing and rated internal contacts to withstand under‑dash and engine‑bay conditions common to trucks and SUVs. The relay is designed to resist vibration and temperature swings typical in daily driving and towing environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePremium PP plastic housing for impact and heat resistance.\u003c\/li\u003e\n  \u003cli\u003eElectrical characteristics engineered to meet OEM specs.\u003c\/li\u003e\n  \u003cli\u003eSealed connector interface to reduce corrosion risk.\u003c\/li\u003e\n  \u003cli\u003eManufactured for long service life in harsh automotive settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the LM487 relay and what should I check first?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: locate the factory flasher module in the dash or fuse panel, unplug the old 10‑pin unit, and insert the JWEELY LM487 in the same orientation. Before installation, verify the OEM part number and turn off the vehicle’s electrical system to avoid shorting circuits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTurn ignition off and remove keys before replacing the relay.\u003c\/li\u003e\n  \u003cli\u003eConfirm OEM part number (LM487, 10383321, 15231201, 15764135) for correct fit.\u003c\/li\u003e\n  \u003cli\u003ePlug the 10‑pin connector fully until it seats; test turn signals immediately.\u003c\/li\u003e\n  \u003cli\u003eIf LED bulbs were installed, no extra load resistor should be necessary for supported models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The JWEELY LM487 LED flasher relay is aimed at DIYers, mechanics, and fleet operators who own compatible 2003–2006 Chevrolet, GMC, Cadillac, or Hummer vehicles and need a reliable, OEM‑style fix for hyper‑flashing or dead turn signals after converting to LED lighting or replacing a failing factory module. It’s also suitable for restorations and maintenance where original part numbers are specified and a plug‑and‑play solution is preferred.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this stop hyper‑flashing after LED bulb upgrades?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—on supported 2003–2006 GM models the LM487 restores proper flash rate without extra resistors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this relay directly replace OEM part 10383321?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the JWEELY LM487 is compatible with 10383321, 15231201, 15764135 and fits the same 10‑pin connector.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"JWEELY","offers":[{"title":"Default Title","offer_id":48085728493726,"sku":"B0CM865FNZ","price":49.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/jweely-lm487-front-view.jpg?v=1785877081","url":"https:\/\/northtrailauto.ca\/products\/jweely-lm487-led-flasher-relay-for-chevy-gmc-2003-2006-10-pin-direct-fit-stops-hyper-flash","provider":"North Trail Auto","version":"1.0","type":"link"}