HomeBelts and Cooling > Water Pump and Related ComponentsUS Motor Works US850 Engine Water Pump
Part #: US850

US Motor Works US850 Engine Water Pump

⚙️ 49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Pontiac, Acadian, Bonneville, Catalina, Executive, Firebird, Grand Prix, GTO, LeMans, Tempest, Star Chief, and Ventura
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Reliable Engine Water Pump for Pontiac Vehicles

The US Motor Works US850 engine water pump is designed specifically for Pontiac models including the Acadian, Bonneville, Catalina, Firebird, Grand Prix, GTO, LeMans, and Tempest. This component ensures efficient coolant circulation to maintain optimal engine temperature and performance.

  • Compatible with multiple Pontiac models for precise fitment
  • Engineered to maintain proper coolant flow and prevent overheating
  • Durable construction for long-lasting operation
  • Direct replacement for original equipment water pumps
  • Part number US850 for easy identification and ordering

Product Details and Compatibility

The US Motor Works US850 engine water pump is a direct-fit replacement part designed to meet the cooling system requirements of various Pontiac vehicles. It supports models such as the Acadian, Bonneville, Catalina, Firebird, Grand Prix, GTO, LeMans, and Tempest, ensuring compatibility with their specific engine configurations. This water pump is part of US Motor Works' commitment to providing reliable engine cooling components that maintain factory specifications and performance standards.

Common Applications and Problem Resolution

This engine water pump is used to circulate coolant through the engine block and radiator, preventing overheating and maintaining engine efficiency. It addresses issues such as:

  • Engine overheating due to coolant circulation failure
  • Coolant leaks from worn or damaged water pump seals
  • Unusual noises caused by failing pump bearings
  • Reduced engine performance linked to inadequate cooling
  • Premature engine wear from improper temperature regulation

Installation Notes and Tips

When installing the US Motor Works US850 water pump, ensure the cooling system is fully drained before removal of the old pump. Clean the mounting surface thoroughly to prevent leaks and use a new gasket or sealant as recommended. Torque all bolts to manufacturer specifications and refill the cooling system with the appropriate coolant mixture. After installation, check for leaks and verify proper coolant circulation during engine operation.

Quality Assurance and Warranty Information

US Motor Works manufactures the US850 engine water pump to meet or exceed OEM standards for durability and performance. While specific warranty details may vary, this part typically includes a limited warranty against defects in materials and workmanship. Refer to the product documentation for exact warranty terms and conditions.

This part fits 49 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1968PontiacAcadianN/A
1968PontiacBonnevilleN/A
1968PontiacCatalinaN/A
1968PontiacFirebirdN/A
1968PontiacGrand PrixN/A
1968PontiacGTON/A
1968PontiacLeMansN/A
1968PontiacTempestN/A
1967PontiacBonnevilleN/A
1967PontiacCatalinaN/A
1967PontiacFirebirdN/A
1967PontiacGrand PrixN/A
1967PontiacGTON/A
1967PontiacLeMansBase5.3LV8N/A
1967PontiacTempestSafari5.3LV8N/A
1966PontiacBonnevilleN/A
1966PontiacCatalinaN/A
1966PontiacGrand PrixN/A
1966PontiacGTON/A
1966PontiacLeMansBase5.3LV8N/A
1966PontiacTempestSafari5.3LV8N/A
1965PontiacBonnevilleN/A
1965PontiacCatalinaN/A
1965PontiacGrand PrixN/A
1965PontiacGTON/A
1965PontiacLeMansBase5.3LV8N/A
1965PontiacTempestSafari5.3LV8N/A
1964PontiacBonnevilleN/A
1964PontiacCatalinaN/A
1964PontiacGrand PrixN/A
1964PontiacGTON/A
1964PontiacLeMansBase5.3LV8N/A
1964PontiacTempestSafari5.3LV8N/A
1963PontiacBonnevilleN/A
1963PontiacCatalinaN/A
1963PontiacGrand PrixN/A
1963PontiacLeMansBase5.3LV8N/A
1963PontiacTempestSafari5.3LV8N/A
1962PontiacBonnevilleN/A
1962PontiacCatalinaN/A
1962PontiacGrand PrixN/A
1962PontiacTempestSafari3.2LL4N/A
1961PontiacBonnevilleN/A
1961PontiacCatalinaN/A
1961PontiacTempestN/A
1960PontiacBonnevilleN/A
1960PontiacCatalinaN/A
1959PontiacBonnevilleN/A
1959PontiacCatalinaN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.