{"product_id":"himarklif-rubber-fuel-cap-gasket-o-ring-for-peterbilt-trucks-2pcs-nitrile-sealing-washers-oe-sized-oil-resistant","title":"HIMARKLIF Rubber Fuel Cap Gasket O-Ring for Peterbilt Trucks, 2PCS Nitrile Sealing Washers — OE-Sized, Oil-Resistant","description":"\u003cp\u003e\u003cstrong\u003eHIMARKLIF Upgraded Rubber Fuel Cap Gasket O-Ring is a two-piece nitrile rubber sealing washer designed to restore a tight, leak-free fit between Peterbilt fuel tank caps and filler necks.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese replacement gaskets are molded from wear- and oil-resistant nitrile rubber with an increased thickness to match OE dimensions and improve sealing performance. Sold as a pair, each O-ring replaces worn or damaged seals on compatible Peterbilt diesel truck fuel caps, helping prevent fuel seepage and contamination while resisting corrosion and oxidation for extended service life.\u003c\/p\u003e\n\n\u003ch3\u003eWill this gasket stop fuel from leaking on my Peterbilt?\u003c\/h3\u003e\n\u003cp\u003eYes — the gasket is sized to meet original-equipment standards and has a thicker cross-section than many aftermarket O-rings. Its nitrile composition is chosen for resistance to diesel and oil, which preserves the seal under normal operating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOE-sized dimensions for a snug fit\u003c\/li\u003e\n  \u003cli\u003eUpgraded thickness to close gaps between cap and port\u003c\/li\u003e\n  \u003cli\u003eNitrile rubber resists oil swelling and degradation\u003c\/li\u003e\n  \u003cli\u003eSells as a pair to replace both worn seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich Peterbilt models and part numbers does it replace?\u003c\/h3\u003e\n\u003cp\u003eThis gasket fits many Peterbilt truck fuel tank caps and is compatible with a broad range of models listed by the manufacturer. It is intended as a replacement for the referenced part numbers so you can identify the correct swap easily.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with models such as 320, 325, 330, 335, 337, 340 and others\u003c\/li\u003e\n  \u003cli\u003eAlso fits later model series: 357, 359, 362, 365, 367, 377, 378, 379\u003c\/li\u003e\n  \u003cli\u003eReplaces part numbers: 562.1014, 572.1014.1, 572.1015\u003c\/li\u003e\n  \u003cli\u003eWorks for both older and many current Peterbilt diesel caps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the HIMARKLIF O-ring and what conditions can it withstand?\u003c\/h3\u003e\n\u003cp\u003eThe gasket is made from high-quality nitrile rubber engineered for mechanical and chemical resistance. It withstands routine exposure to diesel fuel, oils, and the environmental factors encountered on the road while maintaining elasticity and shape.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWear- and oil-resistant nitrile compound\u003c\/li\u003e\n  \u003cli\u003eCorrosion and oxidation resistance for longer life\u003c\/li\u003e\n  \u003cli\u003eFlexible enough to maintain a seal despite vibration and temperature changes\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-piece set to address common dual-cap applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the replacement gasket and what should I check?\u003c\/h3\u003e\n\u003cp\u003eInstallation is simple and requires no special tools: remove the fuel cap, take out the old O-ring, clean the sealing surface, then seat the new gasket into the cap bore before reassembling. Inspect the cap and filler neck for nicks or deformation that could prevent a proper seal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove cap and old gasket, clean mating surfaces\u003c\/li\u003e\n  \u003cli\u003ePress new O-ring fully into the cap groove evenly\u003c\/li\u003e\n  \u003cli\u003eVerify cap threads and filler neck are undamaged\u003c\/li\u003e\n  \u003cli\u003eTest for leaks after reinstalling and refueling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The HIMARKLIF Upgraded Rubber Fuel Cap Gasket O-Ring is aimed at fleet managers, over-the-road drivers, and repair shops who need a reliable, cost-effective replacement seal for Peterbilt diesel fuel tank caps. It’s also suitable for owner-operators and maintenance technicians wanting an easy-to-install part that restores original-fit sealing, reduces fuel seepage risk, and extends cap service life without complex modifications.\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: How many gaskets come in one package?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each package includes two HIMARKLIF rubber O-ring gaskets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this gasket handle diesel and oil exposure?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the nitrile rubber construction resists diesel, oil, corrosion, and oxidation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HIMARKLIF","offers":[{"title":"Default Title","offer_id":55162873381207,"sku":"B0CCNHWV9V","price":30.85,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/himarklif-front-view-fuel-cap-gasket.jpg?v=1790339398","url":"https:\/\/britishgarage.co.uk\/products\/himarklif-rubber-fuel-cap-gasket-o-ring-for-peterbilt-trucks-2pcs-nitrile-sealing-washers-oe-sized-oil-resistant","provider":"British Garage","version":"1.0","type":"link"}