OE Quality
60-Day Returns

US Motor Works US9231 Engine Water Pump
Reliable Engine Water Pump for Mercedes-Benz 420SEL and 560 Series
The US Motor Works US9231 engine water pump is designed specifically for Mercedes-Benz models including the 420SEL, 560SEC, 560SEL, and 560SL. This component ensures efficient coolant circulation to maintain optimal engine temperature and performance.
- Compatible with Mercedes-Benz 420SEL, 560SEC, 560SEL, and 560SL models
- Direct replacement engine water pump for reliable cooling system operation
- Manufactured by US Motor Works for consistent quality and fitment
- Part number US9231 for precise identification and ordering
Engineered for Precise Fit and Cooling Efficiency
The US9231 water pump is engineered to meet the exact specifications required by Mercedes-Benz 420SEL and 560 series vehicles. It facilitates proper coolant flow through the engine block and radiator, preventing overheating and maintaining engine longevity. This pump is constructed to integrate seamlessly with the vehicle’s existing cooling system components, ensuring dependable performance under various driving conditions.
Common Applications and Problem Resolution
- Replaces faulty or leaking water pumps in Mercedes-Benz 420SEL and 560 series
- Addresses engine overheating issues caused by coolant circulation failure
- Eliminates coolant leaks that can lead to engine damage
- Restores proper coolant flow to prevent engine performance loss
- Solves noise or bearing failure related to worn water pumps
Installation Notes and Tips
Installation of the US Motor Works US9231 water pump should be performed by a qualified technician familiar with Mercedes-Benz cooling systems. It is recommended to drain the coolant system completely before removal of the old pump. Inspect related components such as hoses, thermostat, and belts for wear and replace as necessary. Use manufacturer-approved coolant and follow torque specifications during installation to ensure a secure fit and leak-free operation.
Quality Assurance and Warranty Information
US Motor Works manufactures the US9231 water pump to meet or exceed OEM standards for durability and performance. While specific warranty details may vary, this part is backed by US Motor Works’ quality assurance protocols to provide reliable service life. Confirm warranty terms with the distributor or installer at the time of purchase.
This part fits 22 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 1991 | Mercedes-Benz | 420SEL | Base | N/A | |
| 1991 | Mercedes-Benz | 560SEC | Base | N/A | |
| 1991 | Mercedes-Benz | 560SEL | Base | N/A | |
| 1990 | Mercedes-Benz | 420SEL | Base | N/A | |
| 1990 | Mercedes-Benz | 560SEC | Base | N/A | |
| 1990 | Mercedes-Benz | 560SEL | Base | N/A | |
| 1989 | Mercedes-Benz | 420SEL | Base | N/A | |
| 1989 | Mercedes-Benz | 560SEC | Base | N/A | |
| 1989 | Mercedes-Benz | 560SEL | Base | N/A | |
| 1989 | Mercedes-Benz | 560SL | Base | N/A | |
| 1988 | Mercedes-Benz | 420SEL | Base | N/A | |
| 1988 | Mercedes-Benz | 560SEC | Base | N/A | |
| 1988 | Mercedes-Benz | 560SEL | Base | N/A | |
| 1988 | Mercedes-Benz | 560SL | Base | N/A | |
| 1987 | Mercedes-Benz | 420SEL | Base | N/A | |
| 1987 | Mercedes-Benz | 560SEC | Base | N/A | |
| 1987 | Mercedes-Benz | 560SEL | Base | N/A | |
| 1987 | Mercedes-Benz | 560SL | Base | N/A | |
| 1986 | Mercedes-Benz | 420SEL | Base | N/A | |
| 1986 | Mercedes-Benz | 560SEC | Base | N/A | |
| 1986 | Mercedes-Benz | 560SEL | Base | N/A | |
| 1986 | Mercedes-Benz | 560SL | Base | N/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.