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Specifications

The PAI 181865 Thermostat is crafted to meet the demands of heavy-duty Cummins engines—including L10, M11, N14, and 855 platforms. With a 225 °F (107 °C) opening temperature, this thermostat ensures efficient heat regulation for optimal engine performance and longevity. It directly replaces Cummins OEM part 3059408 and cross-matches with 3048784 and 3078338 for flexible fitment across legacy engine families. Manufactured to rigorous ISO-certified standards, it combines durable construction with precision engineering and is backed by PAI’s 2-year unlimited-mileage warranty. Sold by Wofford Truck Parts, the 181865 Thermostat delivers reliable temperature control, reduced maintenance downtime, and OEM-grade replacement for heavy-duty trucking applications.
Weight
0.46

Compatibility

Freightliner (FLD Series, Classic, other Class 8) – Late 1980s through 2000s

Kenworth (W900, T800) – Late 1980s through early–mid 2000s

Peterbilt (379, 379EXHD, others) – Early 1990s through early 2000s

International (9000 series, 9200, 9400) – Late 1980s through early 2000s

Mack (CH Series, etc.) – 1990s when spec’d with Cummins engines

GMC/White/Western Star heavy-duty trucks – 1980s into 1990s


Alternative Part Numbers

  • Cummins 3048784
  • Cummins 3059408
  • Cummins 3078338
  • PAI 181865

Related Parts

Thermostat
PAI Industries, Inc. Part No: 181838
$23.97 View Part
Theromstat Kit
PAI Industries, Inc. Part No: 181844
$26.35 View Part
Thermostat
PAI Industries, Inc. Part No: 181865
$30.46 View Part
Thermostat
PAI Industries, Inc. Part No: 181887
$33.41 View Part

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