Product Description
If you’re running a Cummins engine and need to ensure optimal operating temperature and reliable cooling control, the genuine Cummins 5292738 thermostat is the factory-specified solution. Built by Cummins for Cummins, this 180° thermostat maintains your engine at the correct thermal point to maximise performance, longevity and efficiency.
When the thermostat fails (stuck open or closed) your engine may run too cold, too hot or lose efficient combustion and emissions control. This OEM thermostat restores proper thermal regulation, protects internal components and supports consistent operation under load.
Fitment Details
- OEM thermostat for Cummins engines including 6C-8.3, ISC 8.3, ISL 9, QSL 9 and others as listed by Cummins.
- Commonly used in 1989-1993 Dodge Ram 5.9L 12-valve engines (6BT) and broader Cummins applications.
- One thermostat per engine; replace during coolant system service or if temperature regulation issues present.
Why Choose This Genuine Kit?
- Direct-fit OEM part from Cummins — no aftermarket guesswork.
- Designed to open at 180° F for correct coolant flow and thermal stability.
- Backed by Cummins warranty when sold as genuine.
Cross Reference / Alternatives
When installing this thermostat, you may also consider adjacent service parts that complement the coolant circuit and seal integrity:
FAQ
Will the 5292738 thermostat fit my 5.9L Dodge Ram 12-valve truck?
Yes — this genuine Cummins thermostat is listed for 1989-1993 Dodge Ram trucks with the 5.9L 12-valve (6BT) engine. Always verify your engine serial number and configuration before purchase.
Can I use this thermostat in newer 24-valve 5.9L or VP44 engines?
While this part may physically fit some applications, it's specified primarily for certain engine models — always check fitment against your engine model and Cummins parts book.
What symptoms indicate I should replace the thermostat?
If the engine fails to reach normal operating temperature, overheats, or you notice erratic coolant temperature gauge behavior, replacing the thermostat is a wise first step.
Is this part truly genuine Cummins OEM?
Yes — this part is manufactured by Cummins and listed on the official Cummins parts site as genuine.
| Specifications for CUMMINS 5292738 | |
|---|---|
| Part Number | 5292738 |
| Brand | Cummins |
| Function | 180° F Coolant Thermostat |
| Applications | Cummins 6C-8.3, ISC 8.3, ISL 9, QSL 9 engines, Dodge Ram 5.9L 12-valve (1989-1993) |
| GTIN | – (not publicly listed) |
| UPC | – (not publicly listed) |
| E-Codes / Emissions | Not applicable |
| Shipping Info | Pack size approx 4″ × 4″ × 3″, weight ~1 lb |
| Prop 65 Warning | No specific Prop 65 warning listed for this product. |
| Cross Reference | Replaces/works with related Cummins cooling system parts; see service manual. |
