Michigan Motorsports Front LS Crankshaft Damper Seal | Fits Gen III & Gen IV LS Engines | 4.8L 5.3L 5.7L 6.0L 6.2L 7.0L | LS1 LS3 LQ4 LQ9 | OE Replacement 12585673

The Michigan Motorsports Front LS Crankshaft Damper Seal is a high-quality replacement for GM part number 12585673, designed to restore proper sealing at the front of your LS engine. Built to OE specifications, this seal prevents oil leaks around the crankshaft and harmonic balancer, ensuring reliable performance and long-term durability. Whether you’re maintaining a daily driver or rebuilding a high-horsepower LS platform, this seal provides a precise fit and dependable oil control for Gen III and Gen IV LS engines, including LS1, LS3, LQ4, LQ9, and more.

• OE-Quality Replacement – Direct replacement for GM part number 12585673, ensuring exact fit, reliable sealing, and consistent performance in both stock and performance LS applications.
• Prevents Oil Leaks – Designed to maintain a tight seal around the front crankshaft and harmonic balancer, protecting against oil seepage that can damage engine components and reduce performance.
• Built for Durability – Manufactured from premium materials to withstand high heat, oil exposure, and long-term use, making it ideal for both daily-driven and high-performance LS builds.
• Wide LS Engine Compatibility – Engineered for a broad range of Gen III and Gen IV LS engines including 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L platforms such as LS1, LS3, LQ4, LQ9, and LS7.
• Easy Installation – Precision fit allows straightforward installation, saving time in the shop or garage while ensuring leak-free performance and extended engine life.