NOS 1980–1991 GM water pump 1980–1985 Chevrolet Citation 1980–1985 Pontiac Phoenix 1980–1985 Buick Skylark 1980–1985 Oldsmobile Omega 1982–1991 GM vehicles with 2.5L L4 engines

Description:

GM part number 10042972 refers to a water pump assembly used on 2.5L “Iron Duke” 4-cylinder engines across various 1980–1991 GM vehicles, including Chevrolet, Pontiac, Buick, and Oldsmobile models.

🔧 Part Details

• Description: Engine Water Pump Assembly

• OEM Brand: General Motors / ACDelco

• Casting Numbers: Often associated with 12360448, 10004073, and 10042949 (supersession chain)

• Material: Cast iron housing with steel impeller

• Rotation: Standard (clockwise)

• Mounting: 4-bolt flange

• Applications:

  • 1980–1985 Chevrolet Citation

  • 1980–1985 Pontiac Phoenix

  • 1980–1985 Buick Skylark

  • 1980–1985 Oldsmobile Omega

  • 1982–1991 GM vehicles with 2.5L L4 engines