{"product_id":"snobli-fuel-tank-gas-cap-for-kenworth-trucks-3-5-id-4-od-aluminum-non-vented-with-stainless-chain-bail","title":"snobli Fuel Tank Gas Cap for Kenworth Trucks — 3.5\" ID \/ 4\" OD Aluminum, Non‑Vented with Stainless Chain \u0026 Bail","description":"\u003cp\u003e\u003cstrong\u003esnobli's aluminum fuel cap fits Kenworth fuel tanks with a 3.5-inch inner diameter and 4-inch outer diameter, providing a durable, non-locking closure with stainless chain and bail.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement gas cap is built for heavy-duty trucks that specify ultra low sulfur diesel (ULSD) fuel tank fittings. Made from corrosion-resistant aluminum, it pairs with an 8.0-inch stainless safety chain and a 6.5-inch stainless bail so the cap stays attached while refueling. The cap is non-vented—so it must be installed only on fuel tanks that already have a venting system. Before purchasing, confirm your tank neck dimensions with the photos and measurements provided.\u003c\/p\u003e\n\n\u003ch3\u003eWill this fuel cap fit my Kenworth truck?\u003c\/h3\u003e\n\u003cp\u003eMeasure the fuel tank neck or your existing cap to be certain. This snobli cap is designed for openings with an inner diameter (ID) of 3.5 inches and an outer diameter (OD) of 4 inches.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntended ID: 3.5 inches (approx.)\u003c\/li\u003e\n  \u003cli\u003eOuter diameter: about 4 inches\u003c\/li\u003e\n  \u003cli\u003eVerify by measuring your current cap or neck before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this cap vented or locking?\u003c\/h3\u003e\n\u003cp\u003eThe snobli gas cap is non-locking and non-vented. It provides a solid, threaded closure but relies on the truck's tank venting for pressure equalization.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNon-locking: quick on\/off access during refueling\u003c\/li\u003e\n  \u003cli\u003eNon-vented: must be used only with vented tanks\u003c\/li\u003e\n  \u003cli\u003eDo not install on sealed tanks without a separate vent\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and hardware come with the cap?\u003c\/h3\u003e\n\u003cp\u003eThis cap is machined from aluminum for strength and corrosion resistance and includes stainless-steel attachments to minimize rust in demanding environments. The chain and bail keep the cap tethered to the truck so it won’t be misplaced while fueling.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBody material: aluminum for durability and light weight\u003c\/li\u003e\n  \u003cli\u003eChain length: 8.0 inches of stainless steel\u003c\/li\u003e\n  \u003cli\u003eBail length: 6.5 inches of stainless steel\u003c\/li\u003e\n  \u003cli\u003eHardware resists corrosion common in road and weather exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this cap with any diesel fuel?\u003c\/h3\u003e\n\u003cp\u003eThe cap is marked for use with ultra low sulfur diesel (ULSD) tanks and is compatible with typical diesel fueling practices. It does not alter fuel chemistry or filtration; it simply seals the tank opening when in use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMarked for ULSD applications\u003c\/li\u003e\n  \u003cli\u003eNot a venting or filtering component\u003c\/li\u003e\n  \u003cli\u003eSuitable for standard diesel tank installations that require a 3.5\" ID cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This snobli fuel cap is aimed at Kenworth owners, fleet maintenance teams, and diesel technicians who need a sturdy, easy-to-install replacement cap that stays attached during refueling. It’s best for trucks with pre-existing tank venting and fuel systems specified for ULSD. If you’re unsure about fit, measure your tank neck or current cap and compare to the listed dimensions before ordering.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this cap fit vented tanks only?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The cap is non-vented and requires a tank that already has a venting system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the chain and bail lengths?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The cap includes an 8.0-inch stainless steel chain and a 6.5-inch stainless steel bail.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"snobli","offers":[{"title":"Default Title","offer_id":48085612822686,"sku":"B0CTLQY8SV","price":35.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/snobli-front-view-cap-kenworth.jpg?v=1785874326","url":"https:\/\/northtrailauto.ca\/products\/snobli-fuel-tank-gas-cap-for-kenworth-trucks-3-5-id-4-od-aluminum-non-vented-with-stainless-chain-bail","provider":"North Trail Auto","version":"1.0","type":"link"}