Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Thermostat Cummins 5337966 | 5292740, 5256423, 4929642, 3967195
Optimize your engine’s cooling efficiency with the Cummins 5337966 Thermostat, designed to maintain precise operating temperatures and protect critical components from overheating.
Description
Reliable Temperature Regulation for Heavy-Duty Engines
The Cummins 5337966 Thermostat is a critical component engineered to maintain the optimal operating temperature of your heavy-duty diesel engine. By regulating the flow of coolant between the engine block and the radiator, this thermostat ensures your engine warms up quickly and operates within its most efficient thermal range. This part is also available under the numbers: 5292740, 5256423, 4929642, and 3967195.
Key Features and Benefits
- Precise Thermal Control: Prevents dramatic temperature cycling, ensuring consistent engine performance and reducing thermal stress on critical components.
- Durable Construction: Manufactured from high-quality materials designed to withstand extreme temperatures, high pressure, and corrosive cooling environments.
- Enhanced Fuel Efficiency: Maintaining the correct operating temperature helps optimize combustion, leading to better fuel economy and lower emissions.
- Engine Protection: Safeguards your engine from the catastrophic damage associated with overheating, extending the overall service life of your vehicle.
Engine Compatibility and Applications
This thermostat is engineered for a secure fit and reliable performance across a wide range of Cummins engine series, including:
- B4.5 Series: B4.5 CM2350 B129B, ISB4.5 CM2350 B104
- D4.0 Series: D4.0 CM2620 D103B
- F3.8 Series: F3.8 CM2350 F120B, F3.8 CM2350 F128C, F3.8 CM2620 F137B, ISF3.8 CM2220 AN, ISF3.8 CM2220 F103, ISF3.8 CM2350 F109, QSF3.8 CM2350 F107
- F4.5 Series: F4.5 CM2620 F139B, F4.5 CM2620 F141C
- F Series: F3.8 F102
- QSF3.8 Series: QSF3.8 CM2880 F112
Product Specifications
- Weight: 0.31 lb
- Package Dimensions: 2.24 x 2.24 x 4.88 in
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 5337966
- 5292740
- 5256423
- 4929642
- 3967195
- 3946116
- 3935811
- 3943200
- 3946850
- 3954195
- 3954194
- 3973834
- 3974823
- 3967192
- 4929641
- 4932454
- 5292708
- 5292742
