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

Achieve optimal engine performance with this 24V Cummins thermostat—a genuine Cummins OEM replacement engineered for your ISB 5.9L 98.5-02 24V diesel engine. Its precise design and high-quality components ensure a leak-proof installation and consistent operating temperatures, keeping your engine running reliably even under demanding conditions.

Key Features

  • Genuine Cummins OEM quality with precise engineering
  • Robust construction, made in the USA
  • Enhanced reliability to minimize coolant temperature fluctuations
  • Includes a thermostat with an O-ring seal for a secure fit
  • Supported by a full factory warranty for peace of mind

Technical Specs & Compatibility

  • By KLM Performance
  • Engine : Designed for Cummins ISB 5.9L 98.5-02 24V engines
  • Part Number: 5337966
  • Operating Temperature: 82.2°C - 180°F
  • Compatible Years: 1998.5, 1999, 2000, 2001, 2002 diesel engines

For optimal performance, please enter your engine serial number when ordering to verify compatibility. Enjoy easy installation and dependable operation with your genuine Cummins part. Explore more quality solutions in our Cummins OEM Replacement Parts and Thermostats collections.

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Customer Reviews

Based on 2 reviews
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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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