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Specifications

The PAI 181960 Thermostat is a high-quality engine coolant component calibrated to open at 215 °F (102 °C), designed specifically for Cummins 855 (88NT) and N14 diesel engines. Measuring 3.04″ overall length, it provides precise thermal management critical for maintaining optimal engine performance and longevity.



This thermostat is a direct replacement for Cummins OEM numbers 3100300 and 4952631 and is engineered to meet or exceed OEM specifications with robust materials and manufacturing quality. As a Genuine PAI product, it is backed by a 2-year unlimited-mileage warranty, giving peace of mind for heavy-duty applications.


Weight
0.42

Compatibility

Freightliner FL Series / Classic — late 1980s through early 2000s (ISX replaces N14 by ~2002)

Kenworth W900 / T800 — commonly offered with N14 engines during the 1990s into early 2000s

Peterbilt 359 / 379 — frequently powered by N14 engines in the 1990s into early 2000s

International 9000 / 9200 / 9400 Series (including COE models) — using 855/N14 from 1980s through early 2000s

Western Star 4800 / 4900 — spec’d with 855/N14 from 1980s into the 1990s


Alternative Part Numbers

  • Cummins 3100300
  • Cummins 4952631
  • PAI 181960

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