GMB 130-1690 Engine Water Pump

Engine Water Pump for GM V8 Applications

This GMB engine water pump is built for OEM standard replacement service and manufactured to meet or exceed original equipment specifications. It is a direct-fit cooling system component for select Buick, Chevrolet, and Oldsmobile applications, including 1991-1993 Buick Roadmaster, 1992-1993 Chevrolet Caprice, and 1991-1992 Oldsmobile Custom Cruiser.

Key Features

• GMB Part Number 130-1690
• OEM Standard item grade
• Cast iron construction for durable cooling system service
• Gaskets included for installation
• New product condition
• Designed without a pulley

Detailed Description

GMB 130-1690 is an engine water pump engineered for replacement applications where factory-style fit and cooling performance matter. The cast iron housing supports long-term durability, while the OEM standard specification helps maintain proper coolant circulation in the engine. This pump is listed for 1991-1993 Buick Roadmaster, 1992-1993 Chevrolet Caprice, 1993 Chevrolet Commercial Chassis, and 1991-1992 Oldsmobile Custom Cruiser. If you are replacing a worn cooling component on a Buick Roadmaster, Chevrolet Caprice, or Oldsmobile Custom Cruiser, this GMB 130-1690 water pump provides a straightforward service part option.

This part cross-references Airtex AW5051 and Gates 43115 for the same application.

What It Helps Address

• Coolant circulation problems caused by a worn water pump
• Engine overheating from reduced pump efficiency
• Coolant leaks at the pump housing or gasket surface
• Noisy operation from a failing cooling system pump
• Service replacement needs on GM rear-wheel-drive V8 applications

Installation Notes and Tips

Verify engine application and accessory layout before installation. The pump is supplied with gaskets, and the package contents list two paper gaskets. Clean the mounting surface thoroughly, inspect the cooling system for contamination, and refill with the correct coolant after installation. Because no pulley is included, reuse or replace the pulley separately as needed.

Quality Assurance

GMB manufactures this water pump to meet or exceed OEM specifications, with OEM standard grading for replacement use. The new cast iron design and included gaskets support a service-ready cooling system repair.