Description
MB5D –
PAI Industries 181865 aftermarket oil cooler thermostat for compatible Cummins N14, M11, L10, and 855 diesel engines.
This 225°F oil cooler thermostat helps regulate engine oil temperature by controlling oil flow through the engine’s oil cooling system. As oil temperature increases, the thermostat opens to allow oil to circulate through the cooler, helping maintain proper operating temperatures and protect internal engine components.
The PAI 181865 is designed as a replacement for Cummins OEM part number 3059408 and is suitable for applicable diesel engine rebuilding, oil cooler repairs, and lubrication system maintenance.
Product Specifications:
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Manufacturer: PAI Industries
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Part Number: 181865
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OEM Reference: Cummins 3059408
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Part Type: Engine Oil Cooler Thermostat
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Opening Temperature: 225°F (107°C)
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Flange Diameter: 2.250″
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Body Diameter: 2.005″
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Body Height: 2.950″
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Engine Applications: Cummins N14, M11, L10, and 855
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Engine System: Lubrication / Oil Cooling
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Condition: New Aftermarket
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Quantity: 1 Thermostat
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Gasket or Seal Included: No


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