GMB 155-1130 Engine Water Pump

Engine Water Pump for OE-Standard Cooling Service

This GMB engine water pump is built to meet or exceed OEM specifications for dependable cooling system service. The aluminum construction, included rubber gasket, and OEM Standard grade make it a direct-fit replacement for select Chevrolet Chevy, Pontiac LeMans, and Pontiac Optima applications.

GMB 155-1130 is a practical choice when you need a replacement water pump for 1994-2012 Chevrolet Chevy models or 1991-1993 Pontiac LeMans and 1991 Pontiac Optima applications. It is manufactured for OE-level fit and function, with gasket included for installation on the specified vehicles.

Key Features

• Engine water pump for cooling system repair and replacement
• Manufactured to meet or exceed OEM specifications
• OEM Standard item grade for OE-style service
• Aluminum housing for durable, lightweight construction
• Gaskets included; rubber gasket included in package contents
• New condition
• No pulley included

Detailed Product Overview

The GMB 155-1130 water pump is engineered for direct replacement service where OE fit and cooling performance matter. Its aluminum construction supports reliable operation in the engine cooling system, while the included gasket helps simplify sealing during installation. This part cross-references Dayco 70495 for the same application. For buyers searching for a Chevrolet Chevy water pump or a Pontiac LeMans water pump, this OE-standard replacement provides a straightforward match for the listed fitments.

Common Problems This Part Can Address

• Coolant circulation loss caused by a worn water pump
• Coolant leaks at the pump mounting surface
• Overheating related to reduced cooling system flow
• Noise from a failing pump bearing or impeller assembly
• Service replacement for aging OE cooling components

Installation Notes and Tips

Verify engine application and fitment before installation. Clean the mounting surface thoroughly, inspect the cooling system for contamination or worn hoses, and replace coolant as required by the vehicle service procedure. Because the pulley is not included, reuse or source the correct pulley separately if your application requires one. Confirm gasket placement and torque fasteners evenly to help achieve a proper seal.

Quality Assurance

GMB manufactures this water pump to meet or exceed OEM specifications, supporting OE-style fit and function for the listed Chevrolet Chevy, Pontiac LeMans, and Pontiac Optima applications. Part number 155-1130 is built as a new, OEM Standard replacement for cooling system service.