{"product_id":"3d-printed-diesel-propex-heater-port-for-campers-toppers-vans-trailers","title":"Diesel Heater Port \/ Pass-Through for Campers \u0026 Toppers","description":"\u003cp\u003eGive your heater hose a clean, permanent pass-through instead of pinched doors and sketchy gaps. This 3D-printed heater port lets you route warm air into your camper topper, truck cap, van, or trailer with a low-profile port that actually looks like it belongs there.\u003c\/p\u003e\n\u003cp\u003ePrinted from carbon fiber–reinforced filament, it’s lightweight, heat-resistant, and tough enough for real-world use in four-season rigs.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for diesel \u0026amp; Propex heaters\u003c\/strong\u003e – works with common 3\" (75 mm) diesel heater ducts and 60 mm Propex hoses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5\" hole-saw install\u003c\/strong\u003e – cut a single 3.5\" (89mm) diameter hole, drop in the base port, and you’re ready to mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwist-lock hose adaptor\u003c\/strong\u003e – quick, positive connection to your heater hose so it won’t pull out when you move around camp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside, outside, or both\u003c\/strong\u003e – mount the adaptor inside your camper, outside on the bed wall, or mirror the setup on both sides for dual-hose builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-profile screw cap\u003c\/strong\u003e – seals the port when the heater isn’t in use to keep dust, bugs, and weather out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon fiber-reinforced construction\u003c\/strong\u003e – 3D-printed composite makes for a stiff, durable, and heat-tolerant part without adding much weight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHose adaptor\u003c\/li\u003e\n\u003cli\u003eScrew-on cap\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eBase port\u003c\/li\u003e\n\u003cli\u003eInterior locking ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEverything you need for a clean, finished heater pass-through – just add your preferred fasteners and sealant to match your wall material.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible hose sizes:\u003c\/strong\u003e 75 mm diesel heater ducts, 60 mm Propex heater ducts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut-out size:\u003c\/strong\u003e 3\" (76 mm) diameter hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Wall Thickness:\u003c\/strong\u003e \u003cstrong\u003e.625\" (16 mm) \u003c\/strong\u003ewith supplied gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e carbon fiber–reinforced 3D-printed filament\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall locations:\u003c\/strong\u003e camper toppers, truck caps, van bodies, enclosed trailers, and other flat wall panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal for these setups\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEddy Topper Camper and other \u003ca href=\"\/products\/eddy-topper-camper\"\u003e\u003cstrong\u003ecamper toppers\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eTruck cap campers and canopy builds\u003c\/li\u003e\n\u003cli\u003eVan conversions and enclosed cargo trailers\u003c\/li\u003e\n\u003cli\u003eOverland rigs that park the heater outside but want warm air inside\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e3D-printed notes\u003c\/h3\u003e\n\u003cp data-start=\"211\" data-end=\"375\"\u003eEvery part is 3D-printed, so you may see light layer lines or small cosmetic imperfections. That’s normal for this process and does not affect strength or function.\u003c\/p\u003e\n\u003cp data-start=\"377\" data-end=\"749\"\u003eThese parts are printed using high-temperature ASA Carbon Fiber (ASA-CF) and are designed for normal diesel heater use. For best performance and long part life, we recommend running your heater on low to medium once your camper is up to temperature and avoiding running the heater on high with very short ducting, as this can create higher outlet temperatures at the port.\u003c\/p\u003e\n\u003cp data-start=\"751\" data-end=\"892\"\u003eSteady heat works better than blasting high heat to warm the space up quickly and will provide the best performance and longest service life.\u003c\/p\u003e\n\u003cp data-start=\"894\" data-end=\"994\"\u003eIf you need a port for a different hose size, reach out. We can often help with alternate diameters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSee also:\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/muddy-river.com\/products\/roam-rest-mattress\"\u003eRoam Rest Mattress \u003c\/a\u003e– another small upgrade that makes camp life easier.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWill this work with my diesel heater?\u003c\/strong\u003e\u003cbr\u003eIf your heater uses a 75 mm duct (common on many diesel air heaters) or a 60 mm Propex hose, this port will work. Measure your hose before cutting the hole to confirm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this for exhaust or for warm air?\u003c\/strong\u003e\u003cbr\u003eThis port is intended for heater ducting only – the warm air going into your camper. Do \u003cstrong\u003enot\u003c\/strong\u003e route exhaust through 3D-printed parts. Always follow your heater manufacturer’s installation guidelines for safe exhaust routing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this on an Eddy Topper Camper?\u003c\/strong\u003e\u003cbr\u003eYes. It’s a great way to add a clean heater pass-through on an Eddy Topper or any other camper topper. Just choose a wall location with good interior and exterior clearance and follow proper sealing practices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat about cosmetic defects from 3D printing?\u003c\/strong\u003e\u003cbr\u003eBecause these are 3D-printed, small visual blemishes or layer lines are normal. They don’t affect performance or durability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan you make different hose sizes?\u003c\/strong\u003e\u003cbr\u003eOther hose sizes are often possible – reach out with your heater and hose dimensions and we’ll let you know what we can do.\u003c\/p\u003e\n\u003ch3 data-start=\"368\" data-end=\"442\"\u003eWhat’s the difference between a diesel heater port and a pass-through?\u003c\/h3\u003e\n\u003cp data-start=\"443\" data-end=\"864\"\u003eA diesel heater port (also called a pass-through or wall port) is designed to safely route diesel heater intake, exhaust, or ducting through a wall or panel while maintaining a clean, sealed penetration. The primary difference is terminology—functionally, they serve the same purpose. This port is designed to provide a durable, properly sized opening that reduces vibration, abrasion, and exposure at the wall interface.\u003c\/p\u003e\n\u003ch3 data-start=\"871\" data-end=\"921\"\u003eCan this be used as a diesel heater wall port?\u003c\/h3\u003e\n\u003cp data-start=\"922\" data-end=\"1233\"\u003eYes. This product is designed to function as a diesel heater wall port, allowing hoses or ducting to pass cleanly through camper, topper, or enclosure walls. It helps protect the heater components from sharp edges while providing a more finished and secure installation compared to drilling an unprotected hole.\u003c\/p\u003e\n\u003ch3 data-start=\"1240\" data-end=\"1280\"\u003eWill this work with a camper topper?\u003c\/h3\u003e\n\u003cp data-start=\"1281\" data-end=\"1590\"\u003eYes, this diesel heater port is well suited for camper toppers, including aluminum and composite panel designs, provided the wall thickness and mounting surface are compatible with the product dimensions. It is commonly used in truck camper topper builds where space is limited and clean routing is important.\u003c\/p\u003e\n\u003ch3 data-start=\"1597\" data-end=\"1640\"\u003eIs this compatible with Propex heaters?\u003c\/h3\u003e\n\u003cp data-start=\"1641\" data-end=\"1887\"\u003eThis port is compatible with Propex-style heater installations when the hose or ducting diameter matches the port specifications. Always verify your heater’s hose size and routing requirements before installation to ensure proper fit and airflow.\u003c\/p\u003e\n\u003ch3 data-start=\"1894\" data-end=\"1942\"\u003eWhat materials is the heater port made from?\u003c\/h3\u003e\n\u003cp data-start=\"1943\" data-end=\"2190\"\u003eThe port is 3D printed using a durable, heat-resistant material designed for use in vehicle and camper environments. It is intended for controlled heater routing applications and typical diesel heater operating conditions when installed correctly.\u003c\/p\u003e\n\u003ch3 data-start=\"2197\" data-end=\"2235\"\u003eIs this product weather-resistant?\u003c\/h3\u003e\n\u003cp data-start=\"2236\" data-end=\"2477\"\u003eWhen properly installed and sealed, the port can help maintain a weather-resistant barrier at the wall penetration. For best results, use an appropriate sealant compatible with your camper or topper wall material to prevent moisture ingress.\u003c\/p\u003e\n\u003ch3 data-start=\"2484\" data-end=\"2526\"\u003eIs professional installation required?\u003c\/h3\u003e\n\u003cp data-start=\"2527\" data-end=\"2769\"\u003eProfessional installation is not required. Most users can install the port using basic tools, following standard diesel heater installation practices. Care should be taken to measure accurately, cut cleanly, and seal the penetration properly.\u003c\/p\u003e","brand":"Muddy River Outdoors","offers":[{"title":"3\" Hose Adaptor","offer_id":47303640285423,"sku":"30-2502","price":75.0,"currency_code":"USD","in_stock":true},{"title":"60 mm Hose Adaptor (Propex, approx. 2.36 inches)","offer_id":47303640318191,"sku":"30-2502A","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0323\/1321\/3066\/files\/20250813_140457b.jpg?v=1767388181","url":"https:\/\/overlandexpeditionoutfitters.com\/products\/3d-printed-diesel-propex-heater-port-for-campers-toppers-vans-trailers","provider":"Overland Expedition Outfitters","version":"1.0","type":"link"}