Product Description
Michigan Motorsports LS Gen IV Coolant Crossover Tube Steam Port O-Ring Seals – Set of 4
Replaces GM #12602541 | For LS Engines Using Recessed O-Ring Style Seals
Michigan Motorsports LS Gen IV Coolant Crossover Tube Steam Port O-Ring Seals are a high-quality replacement for GM part number 12602541. Designed specifically for LS-based engines that use recessed O-ring style steam port seals, these precision-molded O-rings properly fit OEM steam port crossover tubes and blockoff plates without slipping or falling out during installation like generic hardware store O-rings. Sold as a set of four, these seals are ideal for maintenance, head swaps, or steam port modifications on 2005+ LS applications. Always verify your engine uses the recessed O-ring style seal before ordering.
Key Features & Benefits
- Direct Replacement for GM #12602541 – Designed to properly replace the factory recessed steam port O-ring seals used on many Gen IV LS engines.
- Correct OEM Shape & Fit – Engineered to stay in place during installation, unlike generic O-rings that can fall out or misalign when installing the crossover tube or blockoff plates.
- Designed for Recessed O-Ring Applications – Fits LS engines that use recessed O-ring steam port seals rather than earlier flat gasket-style designs.
- Ideal for Maintenance & Head Swaps – Perfect when replacing cylinder heads, upgrading crossover tubes, or servicing coolant steam port systems.
- Complete Set of Four – Includes four (4) O-ring seals to service both sides of the coolant crossover tube or blockoff plates.
Notes & Installation Information
- Fits LS-based engines that use recessed O-ring style steam port seals (generally 2005 and newer applications).
- Does not fit early LS engines that use flat gasket-style steam port seals.
- Always verify your crossover tube and cylinder head seal style before ordering.
Key Fitments
- LS Gen IV Engines using recessed steam port O-ring seals (generally 2005+ car and truck applications).
- Compatible with OEM coolant crossover tubes and steam port blockoff plates designed for recessed O-ring configuration.
