Thermostat with O-Ring Seal Fits for Cummins 98.5-02 5.9 24V ISB 180℉ 5337966
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Thermostat with O-Ring Seal for Cummins
This thermostat with O-Ring Seal is a direct-fit replacement for the Cummins 5.9 24V ISB engine from 1998.5 to 2002, opening at 180 degrees Fahrenheit to maintain proper engine temperature. It is cross-referenced to OEM part number 5337966 for reliable cooling system performance.
Overview
This thermostat with O-Ring Seal is designed for the Cummins 98.5-02 5.9 24V ISB engine, regulating coolant flow to keep the engine within its optimal temperature range. It opens at 180°F to promote efficient fuel combustion and reduce engine wear, and the pre-installed O-Ring ensures a secure, hassle-free installation.
Built For Performance
- Opens at 180°F (82°C) for consistent engine temperature management
- Includes a precision-fit O-Ring seal to prevent coolant leaks
- Replacement for OEM part number 5337966
- Durable construction resists corrosion and thermal fatigue
- Direct fit for the 5.9 24V ISB engine application
Fits These Machines
- for Cummins 5.9 24V ISB engine (1998.5-2002)
- for Dodge Ram 2500 and 3500 with 5.9L Cummins (98.5-02)
On-The-Job Use
- Replace a worn or stuck thermostat to prevent engine overheating
- Ensure proper warm-up during cold starts for reduced emissions
- Maintain engine temperature during extended highway driving
- Restore cooling system efficiency when replacing a thermostat with the original
Specs At A Glance
| Part Number(s) | 5337966 |
| Opening Temperature | 180°F |
| Seal Included | O-Ring Seal |
| Engine Fitment | Cummins 5.9 24V ISB (98.5-02) |
Good To Know
Q: Does this thermostat come with the O-Ring already attached? A: Yes, the O-Ring seal is included with the thermostat, ready for installation. This simplifies the replacement process and helps ensure a proper seal.
Q: Will this work for my 2000 model year truck? A: This thermostat fits the 1998.5 to 2002 model years of the 5.9 24V ISB engine, so a 2000 model year is covered. Verify your engine serial number for full confidence.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.