ACDelco 251-814 GM Original Equipment Electric Auxiliary Water Pump

The ACDelco 251-814 is a GM Original Equipment electric auxiliary water pump designed to circulate engine coolant during specific operating conditions. Unlike mechanically driven main water pumps that stop when the engine shuts off, this electric auxiliary pump continues to circulate coolant after engine shutdown, maintaining proper coolant flow where needed.

Key Features:

• Manufactured to GM OE specifications for precise fit, performance, and durability
• Dual-speed electric operation with 3-wire configuration (ground, low speed, high speed) and 3/4-inch inlet/outlet ports
• Coated seals for enhanced longevity and durability
• Heat-treated shaft assemblies for superior strength compared to non-treated alternatives
• Thoroughly tested for reliable, leak-free performance

This original equipment auxiliary water pump delivers the same quality, reliability, and service life you expect from General Motors parts. Compatible with ACDelco PT2528 electrical connector (GM #13574937). GM OEM part number 23463177.