Example photo of thermostat
Example photo of thermostat
BRAND: Cummins | SKU: Cummins 5337966

Cummins 5337966 180 Degree Replacement Thermostat for the ISB 5.9L 98.5-02 24V

$29.98 $0.00 /
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ISB 5.9L 98.5-02 24V Cummins 5337966 180 Degree Replacement Thermostat

PLEASE ENTER YOUR ENGINE SERIAL NUMBER - ESN SO WE CAN VERIFY THE CORRECT THERMOSTAT FOR YOUR ENGINE. CUMMINS PARTS ARE NON-REFUNDABLE. You must enter your EIN to purchase this part.  If you use the part number from the actual part in hand, you may enter it in the EIN field to verify this is the part you want. 

This 180 Cummins 5337966 Thermostat is an OEM replacement Thermostat for Cummins ISB 5.9L 98.5-02 24V Diesel engines. This thermostat is the stock replacement part needed for a leak-proof change for the correct engine operating temperatures. This Cummins Thermostat contains the following required Original Equipment Manufacturer parts:

  • Thermostat With O-Ring Seal

This Cummins 5337966 180 Degree Replacement Thermostat applications:

  • Select ISB 5.9L 1998.5 24V Diesel Engines
  • Select ISB 5.9L 1999 24V Diesel Engines
  • Select ISB 5.9L 2000 24V Diesel Engines
  • Select ISB 5.9L 2001 24V Diesel Engines
  • Select ISB 5.9L 2002 24V Diesel Engines

Note: If your ISB 5.9L 98.5-02 24V engine is experiencing coolant temperature gauge cycling, replace your existing thermostat with this Cummins 5337966 180 thermostat. The new Cummins 5337966 thermostat provides a slower coolant response rate to reduce dramatic engine temperature cycling. This slower engine response rate does not affect the engine performance.

The Cummins 5337966 Thermostat on your ISB 5.9L 98.5-02 24V Cummins engine allows low-temperature coolant from the radiator into the engine to keep the operating temperature within a predetermined range. Operating a Cummins engine with a bad thermostat will cause the thermostat to get stuck in the open or closed position. A defective thermostat will cause the engine to operate either below the correct operating temperature or above it leading to an overheating condition. If you are currently experiencing any of these symptoms, it's time to replace the Cummins 180-degree thermostat to alleviate this issue.

The use of Genuine Cummins parts means you get a precision design, state-of-the-art manufacturing, and diligent testing which ensures optimum engine performance at the Cummins factory-specified level. Only Genuine Cummins parts come with a full factory warranty, giving you peace of mind and financial protection.

This 5337966 Replacement Cummins OEM 180 Degree Thermostat is for the ISB 5.9L 98.5-02 24V Cummins engines that are MADE IN THE USA! 

The Cummins 5337966 180 Degree Thermostat supersedes the:

  • Cummins  Thermostat for Cummins ISB 5.9L 98.5-02 24V Engine

This OEM Cummins 180-Degree Thermostat Benefits:

  • Purchasing Genuine Cummins parts means you get a precision-designed product.
  • Cummins parts are manufactured at state-of-the-art facilities.
  • Strict quality control measures and diligent testing that ensures the replacement parts perform at Cummins factory-specified levels of efficiency,
  • Genuine Cummins parts come with a full factory warranty, giving you peace of mind and financial protection.
  • Only Genuine Cummins parts provide the reliability and durability you need to stay on the road.
  • By KLM Performance
  • Engine : Cummins ISB 5.9L 98.5-02 24V
  • Thermostat Opening Temperature: 82.2°C - 180°F
  • Item Number: Cummins 5337966
  • Make: Cummins 
  • Model: ISB 5.9L 24V
  • Year: 1998.5 | 1999 | 2000 | 2001 | 2002
  • Manufacturer Part No: Cummins 5337966
  • Product Application: Cummins ISB 5.9L 98.5-02 24V Engines
  • Height: 3
  • Width :3
  • Brand: Cummins
  • FAQ: Why should you purchase a Genuine Cummins Thermostat for your diesel engine?  Installation of an OEM Cummins 5337966 180 Degree Thermostat ensures your engine maintains its factory performance, power output levels, function, and straightforward fitment. OEM parts will repair an exact replacement that is trouble-free.
  • Part Number: 5337966
  • Manufacturer: Cummins
  • Product Note: Cummins Parts Are A Non-Returnable Item. Please ensure you have ordered the correct part for your Cummins diesel engine!

 

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      Customer Reviews

      Based on 2 reviews
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      (2)
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      W
      William Christopher
      Positive Results

      I installed the thermostat replacement and have had great results. I have noticed lower operating temperatures and a slight increase in my fuel economy.

      A
      Alejandro Vazquez
      Reliable Cooling Solution

      This thermostat replacement has been a game-changer for my ISF engine. It keeps my engine cool, even during long trips. A quality product!

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