This water pump gasket is designed for GM LS-series engines (Gen III and Gen IV) and replaces the factory water pump-to-block gasket (OEM 12630223). It seals the water pump to the engine block to prevent coolant leaks and ensure proper coolant circulation. The gasket is suitable for rebuilds, maintenance, or whenever the water pump is removed or replaced.

Brian Tooley Racing BTR30223 Features:

• Fitment: GM Gen III and Gen IV LS-series engines
• Seals water pump to engine block for coolant containment
• Aluminum/rubber composite construction for reliable sealing
• Direct-fit replacement for OEM gasket — no modification required
• Suitable for standard maintenance, repairs, or water-pump replacement jobs

Brian Tooley Racing BTR30223 Notes:

• Sold individually — two gaskets are typically required per engine
• Recommended replacement any time the water pump is removed to ensure sealing integrity