Description
Engine thermostat kit for Cummins ISC, QSC, and 6CTA 8.3L engines. PAI 181928 replaces Cummins OEM 5273379 and supersedes 4936026, 4992231, and 5265799. The 180°F (82°C) thermostat opens to regulate coolant flow once the engine reaches operating temperature; the kit includes the matching seal so the housing can be reassembled in one job.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 181928 |
| Part Type | Thermostat Kit (180°F) |
| Engine Compatibility | Cummins ISC 8.3L, QSC 8.3L, 6CTA 8.3L |
| Opening Temperature | 180°F / 82°C |
Kit Includes
- Thermostat, 180°F — PAI 181928 (OEM Cummins 5273379)
- Thermostat housing seal/gasket
Cross References
This thermostat kit replaces or is equivalent to the following part numbers:
- Cummins: 5273379, 4936026, 4992231, 5265799
Applications
This thermostat kit fits the following engines:
- Cummins ISC 8.3L (1998–2007, EPA98 / EPA02 / EPA04 era)
- Cummins QSC 8.3L (off-highway / industrial)
- Cummins 6CTA 8.3L (mechanical, pre-ISC)
Representative vehicles using these engines:
- Freightliner M2 Business Class with Cummins ISC 8.3
- International 4300/4400 with Cummins ISC 8.3
- Sterling Acterra with Cummins ISC 8.3
- Marine, agricultural, and industrial QSC 8.3 / 6CTA 8.3 platforms
Verify your engine serial number and configuration before ordering to confirm fitment.
