Product Description
Michigan Motorsports LS Lower Timing Chain Crank Gear – Replaces GM 12556582
Fits 1999–2013 LS-Based V8 4.8L 5.3L 5.7L 6.0L 6.2L | LS1 LS2 LS3 LS6 L99 LS4 LSA LQ4
The Michigan Motorsports LS Lower Timing Chain Crank Gear is a high-quality replacement for GM part number 12556582 and is designed for 1999–2013 LS-based V8 engines. The crankshaft timing sprocket is a critical component of the engine’s valvetrain, ensuring precise synchronization between the crankshaft and camshaft through the timing chain. Manufactured from durable, high-strength materials, this gear provides reliable timing accuracy and long service life, making it an excellent choice for engine rebuilds, camshaft upgrades, or timing chain service on LS engines.
Key Features & Benefits
- Direct Replacement for GM 12556582 – Designed to replace the factory lower crankshaft timing sprocket on LS-based V8 engines.
- Precision Engine Timing – Maintains accurate timing chain alignment between the crankshaft and camshaft for proper engine performance.
- High-Strength Construction – Manufactured from durable materials designed to provide long-lasting performance and reliability under demanding engine conditions.
- Ideal for Engine Rebuilds or Cam Swaps – Recommended when servicing timing components during camshaft upgrades or full engine refreshes.
- Wide LS Engine Compatibility – Designed for a broad range of Gen III and Gen IV LS-based engines used in GM trucks, cars, and performance vehicles.
Notes & Installation Information
- Fits most LS engines except LS7 and LS9 applications.
- Commonly replaced during timing chain service or camshaft installation.
- Professional installation recommended when servicing engine timing components.
Key Fitments
- 1999–2013 LS-Based V8 Engines 4.8L 5.3L 5.7L 6.0L 6.2L
- Engine platforms including LS1, LS2, LS3, LS6, L99, LS4, LSA, and LQ4
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Great
Fit as it should. Fast & secure shipping.
