Michigan Motorsports Camshaft Thrust Retainer Plate | Replaces GM #12589016 | Fits GM LS Gen III IV V 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LQ4 LQ9

The Michigan Motorsports Camshaft Thrust Retainer Plate is a premium replacement for GM part number 12589016, designed for Gen III, IV, and V LS engines. This thrust plate is engineered to secure the camshaft in place while maintaining proper endplay, ensuring smooth operation and long-term reliability. Manufactured to precise specifications, it includes the integrated gasket and seal for leak-free performance. Ideal for rebuilds, upgrades, or routine maintenance, this retainer plate is compatible with non-VVT LS applications and uses the early-style flanged bolts. Whether you’re refreshing a daily driver or assembling a high-horsepower LS build, Michigan Motorsports delivers OEM-quality reliability with performance-driven durability.

• Direct OEM Replacement – Replaces GM part number 12589016, designed to fit LS Gen III, IV, and V engines while maintaining OEM reliability and proper camshaft endplay.
• High-Quality Construction – Built with precision to ensure durability under demanding conditions, making it ideal for both stock rebuilds and performance engine builds.
• Includes Gasket & Seal – Comes with the integrated cam gasket and seal to provide a leak-free installation and long-lasting performance in your LS engine.
• Non-VVT Applications – Specifically designed for non-variable valve timing LS engines, making it the correct choice for a wide range of Gen III–V applications.
• Broad LS Fitment Coverage – Compatible with 4.8L, 5.3L, 6.0L, and 6.2L engines including LS1, LS2, LS3, LQ4, and LQ9, ensuring versatility for multiple builds.