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Four Seasons 34001 Engine Thermostat for International HD / Navistar

Manufacturer

Picture for manufacturer Four Seasons

Part Number

34001
5 reviews
Sale Price

$84.78

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Four Seasons 34001 is a heavy-duty engine thermostat engineered for International HD and Navistar applications. Designed to regulate engine coolant temperature, this thermostat ensures optimal operating temperature is reached quickly and maintained consistently, supporting engine efficiency, emissions performance, and longevity.

Key Features:

  • Direct-fit OE replacement thermostat for International HD / Navistar engines
  • Precision temperature regulation to maintain proper coolant flow and engine operating range
  • Heavy-duty construction built to withstand the demands of commercial and fleet applications
  • Manufactured by Four Seasons, a trusted name in thermal management and HVAC components
  • Helps prevent engine overheating and promotes fuel efficiency by reaching optimal temperature faster

The Four Seasons 34001 thermostat is a reliable, cost-effective solution for restoring proper cooling system function on International HD and Navistar-powered vehicles. Ideal for fleet maintenance, repair shops, and owner-operators seeking a quality OE-equivalent replacement.

nice price

Good price, amazon checkout simplified whole process.

First time order for my 27 roadster,,,,,THANK U Got my order quick and in perfect condition

It was good other than when I went out and came back in it kept adding the same item to my cart but I figured it out

simple, but my order does not appear on my site so I could not make a return.

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