Thermostat

Thermostats for heavy duty diesel trucks

Discover our complete range of thermostats for heavy duty trucks. These heavy duty engine parts regulate coolant flow to maintain proper operating temperature and prevent overheating under demanding service. They provide precise control and thermal stability for reliable performance. Classified as replacement engine parts they deliver dependable fit and durability for fleet maintenance. Compatible with Mack Volvo Caterpillar Detroit Diesel Freightliner Paccar and Cummins engines. Get it today for smooth performance.
Sort by:
Cummins ISB/QSB 3946849 Thermostat Kit (190 deg F)

Cummins ISB/QSB 3946849 Thermostat Kit (190 deg F) PAI 181907OEM

$115.19 USD
CROSS REFERENCE: 3946849 3935824 3937171 APPLICATION: Cummins ISB/QSB  DETAILS: Genuine Part OEM Number Description Quantity 3946847 THERMOSTAT 1 3942454 D-RING 1 BRAND: PAI 181907OEM Cummins 3946849 Thermostat Kit PAI 181907OEM...
Cummins ISB/QSB 3954830 Thermostat Kit (190°F)

Cummins ISB/QSB 3954830 Thermostat Kit (190°F) PAI 181866

$21.11 USD
CROSS REFERENCE: 3954830 3974371 4929644 5292711 5292712 5292744 5627589 APPLICATION: Cummins ISB/QSB DETAILS: Gasket or Seal Included Yes Opening Temperature (C) 88 Opening Temperature (F) 190 Vented Yes BRAND: PAI...
Volvo/D12 8149182 Thermostat (180 deg)

Volvo/D12 8149182 Thermostat (180 deg) PAI 801162

$22.47 USD
CROSS REFERENCE: 8149182  APPLICATION: Volvo/D12 DETAILS: Gasket or Seal Included No Opening Temperature (C) 82 Opening Temperature (F) 180 BRAND: PAI 801162 Volvo 8149182 Thermostat (180 deg) PAI 801162 supported...
Mack/Volvo 21905526 Thermostat Housing

Mack/Volvo 21905526 Thermostat Housing PAI 801170

$39.56 USD
CROSS REFERENCE: 21905526 20405125 21611266 APPLICATION: Mack MP8/Volvo D13/Multiple Use Application. DETAILS: Color/Finish Silver Gasket or Seal Included Yes Installation Hardware Included No Material Aluminum Mounting Hole Quantity 4 BRAND:...
Mack/Volvo 21519562 Thermostat Housing

Mack/Volvo 21519562 Thermostat Housing PAI 801171

$36.79 USD
CROSS REFERENCE: 21519562  APPLICATION: Mack MP7/MP8/Volvo D11/D13/Multiple Use Application. DETAILS: Not Sold Separately Color/Finish Silver Gasket or Seal Included No Installation Hardware Included No Material Aluminum Mounting Hole Quantity 4...
Cummins ISX 4952629 Thermostat And Kit Oring PAI 181926

Cummins ISX 4952629 Thermostat And Kit Oring PAI 181926

$63.94 USD
CROSS REFERENCE: PAI 181926 APPLICATION: Cummins ISX DETAILS: 4952629 Thermostat And Kit Oring OEM Number Description Quantity 4952629 THERMOSTAT 1 3089025 O-RING 1 BRAND: PAI 181926 Cummins 4952629 Thermostat Kit...
Paccar MX-13 2124041PE Thermostat

Paccar MX-13 2124041PE Thermostat PAI 702067

$41.36 USD
CROSS REFERENCE: 1861616 1861616PE 2124041PE 2124041 APPLICATION: Paccar MX-13 DETAILS: 195 Degrees F/91 Degrees C  BRAND: PAI 702067 Paccar MX-13 2124041PE Thermostat PAI 702067 featuring OEM replacement parts. Supports USA truck...
Cummins ISX 4952629 Thermostat (235 deg)

Cummins 4952629 Thermostat (235 deg) PAI 181925

$58.10 USD
CROSS REFERENCE: 4952629 3680453 APPLICATION: Cummins ISX DETAILS: Gasket or Seal Included No Opening Temperature (C) 113 Opening Temperature (F) 235  BRAND: PAI 181925  Cummins 4952629 Thermostat (235 deg) PAI...
Cummins 4336659 Thermostat  (180 deg)

Cummins 4336659 Thermostat (180 deg) PAI 181887

$30.50 USD
CROSS REFERENCE: 2882757 3335549 3335550 4318197 4336659 4952204 4973373 APPLICATION: Cummins N14/ISX/M11/L10/B/ISM/ISB/QSB/B DETAILS: 4.5 L Size y 6.7 L Size Gasket or Seal Included No Inside Diameter (inches) 2.27 Opening...
Cummins 4318947 Thermostat ((180 deg)

Cummins 4318947 Thermostat (180 deg) PAI 181930

$36.71 USD
CROSS REFERENCE: 4318947 APPLICATION: Cummins ISX DETAILS:  Gasket or Seal Included No Opening Temperature (F) 180 Vented No BRAND: PAI 181930 Cummins 4318947 Thermostat (180 deg) PAI 181930 using engine...
Cummins ISC / QSC 8.3 5273379 Thermostat Kit (180 Deg )

Cummins ISC/QSC 8.3 5273379 Thermostat Kit (180 Deg) PAI 181928

$28.67 USD
CROSS REFERENCE: 5273379 4936026 4992231 5265799 APPLICATION: Cummins ISC/QSC 8.3  DETAILS: Gasket or Seal Included Yes Opening Temperature (C) 82 Opening Temperature (F) 180 BRAND: PAI 181928  Cummins 5273379 Thermostat PAI...
Cummins ISC 3940632 Thermostat (83C/ 180 Deg)

Cummins ISC 3940632 Thermostat PAI 181890

$27.89 USD
CROSS REFERENCE: 3940632 3968559 5274887 5284903 5337942 4930594 5274349 5269131 5478594 APPLICATION: Cummins ISC DETAILS: (83C/180 Deg) Gasket or Seal Included No Opening Temperature (C) 83 Opening Temperature (F) 180...