GMB 130-3150 Engine Water Pump

Engine Water Pump Overview

This GMB engine water pump, part number 130-3150, is built to meet or exceed OEM specifications for a direct-fit cooling system replacement. It is engineered for serpentine belt applications and uses a reverse-rotation impeller for the correct coolant flow pattern.

Compatible with select Cadillac Escalade, Chevrolet Silverado 1500, and GMC Sierra 1500 applications, this water pump supports proper engine cooling in late-model GM trucks and SUVs. The cast iron housing, metal impeller, and included pulley help provide a service-ready replacement for the original pump.

Key Features

• Meets or exceeds OEM specifications for fit and function.
• Reverse-rotation impeller for serpentine belt drive systems.
• Cast iron construction with a metal impeller.
• Pulley included for a complete pump assembly.
• Gaskets included for sealing during installation.
• Instructions included for service reference.

Detailed Description

Part number 130-3150 is an engine water pump designed for GM cooling system service on applications such as the Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon. The serpentine belt drive type and reverse impeller rotation are important fitment details, since the pump must match the engine’s belt routing and coolant circulation requirements. The cast iron body and metal impeller provide a durable replacement configuration, while the included pulley and gaskets support a straightforward repair process.

This part cross-references GM OE numbers 12687631 and 12708893 for the same application.

What It Helps Fix

• Coolant circulation problems caused by a worn pump.
• Overheating from reduced water pump performance.
• Leaks at the pump sealing surface.
• Noisy operation from a failing pump assembly.
• Drive issues related to an incorrect rotation or pulley setup.

Installation Notes and Tips

Verify the engine’s serpentine belt routing and reverse-rotation requirement before installation. Replace the gaskets during service and follow the included instructions for proper assembly. Confirm fitment against the vehicle application list for the exact Cadillac, Chevrolet, or GMC model and year.

Quality Assurance

GMB states that this water pump is manufactured to meet or exceed OEM specifications.