{"product_id":"fleece-performance-98-5-07-dodge-2500-3500-cummins-replacement-thermostat-housing-w-aux-port","title":"Fleece Performance Thermostat Housing w\/Aux Port: Ram 2500 \/ 3500 1998.5-2007 5.9L Diesel \/ 2013-2018 6.7L Diesel","description":"\u003ch1\u003eFleece Performance Thermostat Housing\u003c\/h1\u003e\n\u003ch2\u003e1998–2007 Dodge Ram 2500 \/ 3500 5.9L Diesel \u0026amp; 2013–2018 Ram 2500 \/ 3500 6.7L Diesel\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart #:\u003c\/strong\u003e FPE-CUMM-TH-1318\u003c\/p\u003e\n\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Fleece Performance Thermostat Housing with Auxiliary Port is a precision-engineered replacement part designed specifically for Dodge and Ram trucks equipped with Cummins diesel engines. This housing fits 1998.5 to 2007 Dodge Ram 2500 and 3500 models with the 5.9L Cummins engine, as well as 2013 to 2018 Ram 2500 and 3500 trucks powered by the 6.7L Cummins diesel. It serves as a direct replacement for the factory thermostat housing, ensuring reliable cooling system performance while offering enhanced customization options through its auxiliary port.\u003c\/p\u003e\n\u003cp\u003eIdeal for diesel truck enthusiasts and professionals looking to upgrade or maintain their cooling system, this thermostat housing allows for improved coolant routing flexibility. The integrated auxiliary port accepts a -10AN (7\/8\"-14) fitting, enabling users to add additional coolant lines or sensors as needed for performance or monitoring purposes.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003eDesigned with durability and functionality in mind, the Fleece Performance Thermostat Housing offers several key benefits:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for factory thermostat housing on 1998.5–2007 5.9L Cummins and 2013–2018 6.7L Cummins Ram trucks\u003c\/li\u003e\n  \u003cli\u003eThreaded auxiliary port accepts -10AN (7\/8\"-14) fittings for custom coolant routing or sensor installation\u003c\/li\u003e\n  \u003cli\u003eIncludes port plug (FPE-SP-7814) for sealing unused auxiliary port\u003c\/li\u003e\n  \u003cli\u003eCompatible with Fleece Performance coolant bypass kits (FPE-CLNTBYPS-CUMM-0712 and FPE-CLNTBYPS-CUMM-1318)\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for Cummins OEM part numbers 5283433 and 3943297\u003c\/li\u003e\n  \u003cli\u003ePrecision-machined to ensure proper fit and reliable sealing\u003c\/li\u003e\n  \u003cli\u003eEnhances cooling system versatility without compromising factory fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction \u0026amp; Design\u003c\/h3\u003e\n\u003cp\u003eThe thermostat housing is crafted from high-quality materials engineered to withstand the demanding conditions of diesel engine cooling systems. Its robust construction ensures resistance to corrosion, heat, and pressure, providing long-lasting durability. The auxiliary port is precisely threaded to accept standard -10AN fittings, allowing for secure and leak-free connections. This design facilitates easy integration with aftermarket coolant accessories or monitoring devices, enhancing the overall functionality of your truck’s cooling system.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward as this thermostat housing is a direct OEM replacement for the specified Dodge and Ram Cummins diesel models. It fits seamlessly in place of the original thermostat elbow without requiring modifications. The included port plug allows you to seal the auxiliary port if not in use, maintaining system integrity. This part is compatible with Fleece Performance coolant bypass kits, making it an excellent choice for those upgrading their cooling system for improved performance or reliability.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFleece Performance Thermostat Housing with Auxiliary Port\u003c\/li\u003e\n  \u003cli\u003eAuxiliary port plug (FPE-SP-7814)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cp\u003eThis thermostat housing is perfect for diesel truck owners who want a reliable, direct-fit replacement part with added flexibility for coolant system customization. It is especially suited for those running performance upgrades, custom coolant routing, or monitoring setups on 1998.5–2007 Dodge Ram 5.9L Cummins and 2013–2018 Ram 6.7L Cummins trucks. Whether for daily driving, towing, or off-road use, this component helps maintain optimal engine temperatures and supports enhanced cooling system configurations.\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":48209028841684,"sku":"FPE-CUMM-TH-1318","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/a2f98eb9b15a00e6b809d4287611b1d0L.png?v=1783234563","url":"https:\/\/fasthemis.com\/products\/fleece-performance-98-5-07-dodge-2500-3500-cummins-replacement-thermostat-housing-w-aux-port","provider":"FastHemis","version":"1.0","type":"link"}