Engines and Components› Camshafts and Valvetrain

GM

Engine Timing Chain

$110.91

SKU: 12586482

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It is described as CHAIN, Engine Timing and carries GM's factory warranty.
Show original supplier description
The GM 12586482 Timing Chain Assembly is a genuine General Motors part designed to ensure the precise timing of your engine. As a direct replacement for your original component, it is built to the same high standards for quality, longevity, and fit, having passed stringent quality testing to guarantee reliability and performance. This timing chain is identified by part number 12586482 and is also sometimes referred to as a "GM Timing Chain." It is constructed with durability and accuracy in mind, intended to perform like your vehicle's original parts. While this part is a direct replacement, there are notes suggesting that newer part numbers like 12646386 supersede this one. Furthermore, some sources indicate that installing the superseded part may require an SPL oil pump or grinding the front timing cover to ensure proper fitment, though these specific modifications are not explicitly stated as requirements for the 12586482 part itself. This genuine GM part comes with GM's factory warranty, providing assurance of its quality and reliability. When purchasing, ensure you are selecting the correct part for your specific application, as timing components are critical for engine operation. If unsure, consulting with a parts specialist or providing your VIN is recommended.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandGM
Part Number12586482
CategoryEngines and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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