Genuine GM Water Pump Gasket 12660159 – Suits Holden Commodore VE/VF 3.6L Alloytec & SIDI V6

Genuine GM Water Pump Gasket 12660159 is the factory-spec gasket used between the water pump and timing cover on GM 3.6L Alloytec and SIDI V6 engines. This precision-cut gasket seals the coolant transfer ports at the water pump interface, ensuring a leak-free joint under varying heat and pressure conditions.

Manufactured from high-temperature composite material, this Genuine GM gasket delivers consistent sealing performance for long-term reliability. It is designed for direct replacement during water-pump servicing or cooling-system repairs where the original gasket has aged, compressed, or deteriorated.

Fitment:

• Holden Commodore VE / VF (3.6L Alloytec & SIDI V6)
• Holden Calais VE / VF (3.6L Alloytec & SIDI V6)
• Holden Caprice WM / WN (3.6L Alloytec & SIDI V6)
• Holden Statesman WM (3.6L Alloytec V6)
• Holden Captiva (3.6L Alloytec / SIDI V6 – LE0, LY7, LLT, LFX)

Specifications:

• OEM Part Number: 12660159
• Application: Between water pump and timing cover
• Material: High-temperature composite gasket fiber
• Function: Seals coolant passages at the water pump mounting surface
• Engine Family: GM 3.6L Alloytec / SIDI V6 (LE0, LY7, LLT, LFX)

Key Features:

• Genuine GM OEM component for factory-fit accuracy
• Prevents coolant leaks between timing cover and water pump
• Engineered for high temperature and pressure resistance
• Essential when replacing water pump or timing cover assembly
• Direct-fit replacement with no modifications required

Installation Tip: Always clean both the water-pump and timing-cover surfaces thoroughly before installing. Avoid sealant unless specified by the service manual, and torque all mounting bolts evenly to maintain gasket compression.