Cummins ISB and QSB Thermostats
We sell thermostats for Cummins ISB and QSB engines. You can easily access our inventory by visiting the product links listed below.
If you do not see the part you are looking for, please use our quote request form or call us at 855.470.3525 : our knowledgeable sales staff will gladly help you.
THERMOSTAT - B 3.3 / QSB 3.3
Genuine Cummins Part
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THERMOSTAT - 4B 3.9 / 6B 5.9 / ISB 6.7 / QSB
Genuine Cummins Part
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THERMOSTAT - 4BT / 6BT (83DEGC / 181DEGF)
Genuine Cummins Part
Add to cart
Ships in 3-4 days
THERMOSTAT - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB
Genuine Cummins Part
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THERMOSTAT - 4B3.9 / B4.5 / 6B5.9 / B6.7 / ISB / QSB
Genuine Cummins Part
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Ships in 3-4 days
THERMOSTAT - ISB / C SERIES
Genuine Cummins Part
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Ships in 3-4 days
THERMOSTAT - B SERIES / ISB
Genuine Cummins Part
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Ships in 3-4 days
THERMOSTAT - ISB / QSB
Genuine Cummins Part
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THERMOSTAT - 4B 3.9 / 6B 5.9 / ISB 6.7 / QSB
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Ships in 1-2 days
THERMOSTAT KIT - 4B3.9 / 6B5.9 / ISB / ISD
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Ships in 1-2 days
THERMOSTAT - N14 (180DEGF/82DEGC )
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Ships in 1-2 days
