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Fleece Performance 98.5-07 Dodge 2500/3500 Cummins Replacement Thermostat Housing w/Aux Port

Fleece Performance · New

Fleece Performance 98.5-07 Dodge 2500/3500 Cummins Replacement Thermostat Housing w/Aux Port

MPN FPE-CUMM-TH-1318 · Store SKU fpeFPE-CUMM-TH-1318

$129.99
IN STOCK5 ready to ship

Supplier stock checked 11/8/2026, 9:34:33 AM UTC. Adding a part does not reserve it.

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Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

The Fleece Performance replacement thermostat housing with auxiliary port is a direct replacement part for model years 1998.5-2007 RAM with 5.9L Cummins and 2013-2018 RAM with 6.7L Cummins. The auxiliary port is threaded to accept a -10AN (7/8"-14) fitting to allow you to customize your coolant routings and includes port plug FPE-SP-7814. APPLICATION NOTES Direct replacement for thermostat elbow included in our coolant bypass kits: FPE-CLNTBYPS-CUMM-0712 and FPE-CLNTBYPS-CUMM-1318. Direct replacement for Cummins part numbers 5283433 and 3943297. Auxiliary port is threaded to accept a -10AN (7/8"-14) fitting. Replacement Thermostat Housing with Auxiliary Port (RAM with 5.9L and 6.7L Cummins) Replacement Thermostat Housing with Auxiliary Port

Manufacturer fitment & guides

Check FPE-CUMM-TH-1318 against the manufacturer’s application information below.

Part-specific notes

  • California Proposition 65: Y

Manufacturer documents

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