Fit for Cummins Thermostat Kit 180F 58mm ISB/QSB Engines 4929643 5337966

Fit for Cummins Thermostat Kit 180F 58mm ISB/QSB Engines 4929643 5337966

$35.19
Sale price  $35.19 Regular price 
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Fit for Cummins Thermostat Kit 180F 58mm ISB/QSB Engines 4929643 5337966

Fit for Cummins Thermostat Kit 180F 58mm ISB/QSB Engines 4929643 5337966

SKU: ZZ3F01214
$35.19 In Stock
$35.19
Sale price  $35.19 Regular price 
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model

Thermostat Kit for Cummins

This thermostat kit for Cummins is a direct-replacement cooling system component designed for ISB and QSB engine platforms, using a 180°F (82°C) thermostat with a 58mm diameter. It includes the necessary components for a complete thermostat replacement, referencing OEM cross-part numbers 4929643 and 5337966. This kit helps maintain proper engine operating temperature, ensuring efficient performance and reducing wear on the engine.

Overview

This thermostat kit for Cummins provides a complete replacement solution for ISB and QSB engines, featuring a 180F thermostat with a 58mm flange size. It is designed to regulate engine coolant flow and maintain optimal operating temperature for dependable performance. This thermostat kit for Cummins is ideal for diesel engine maintenance when the original unit fails or shows signs of sticking.

Built For Performance

  • 180°F thermostat opening temperature for efficient engine warm-up
  • 58mm flange diameter for direct fitment on compatible applications
  • Includes gasket or sealing components where applicable
  • Cross-references OEM numbers 4929643 and 5337966
  • Durable construction resists corrosion and sticking

Fits These Machines

  • for Cummins ISB engine
  • for Cummins QSB engine

On-The-Job Use

  • Replaces worn or stuck thermostats in heavy-duty truck and equipment fleets
  • Used during cooling system service for diesel generators or marine engines
  • Restores proper engine warm-up and cooling in agricultural or construction machinery

Specs At A Glance

Part Number(s) 4929643, 5337966
Thermostat Rating 180°F
Flange Diameter 58mm

Good To Know

Q: Does this kit include only the thermostat or the gasket too? A: This kit typically includes the thermostat and any necessary sealing ring, but confirm the specific contents for your engine model because some applications may require a separate gasket.

Q: Can this thermostat be used on a 4BT engine? A: This kit is designed for ISB and QSB engines, and fitment on other Cummins models like 4BT is not guaranteed without verifying dimensions.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.

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