{"product_id":"ourwillsm-2-piece-locking-diesel-fuel-cap-for-freightliner-kenworth-western-star-3-1-2-inch-5-5-tpi-4-keys","title":"OURWILLSM 2-Piece Locking Diesel Fuel Cap for Freightliner, Kenworth, Western Star – 3-1\/2-Inch, 5.5 TPI, 4 Keys","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMeet the OURWILLSM locking diesel fuel cap, a rugged closure designed for heavy-duty trucks and long hauls. Crafted from a corrosion-resistant aluminum alloy, it endures road grime, weather, and daily use while keeping the fuel tank securely closed. The cap features a 3-1\/2 inch nominal size with a 5.5 threads-per-inch (TPI) diesel-specific thread and arrives with four matching keys, plus standard safety hardware.\u003c\/p\u003e\n\n\u003ch3\u003eWhy drivers choose OURWILLSM\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecurity: A locking cylinder with four matching keys helps control who accesses the fuel tank.\u003c\/li\u003e\n\u003cli\u003eDurability: Aluminum alloy resists corrosion and oxidation, extending service life in tough conditions.\u003c\/li\u003e\n\u003cli\u003eLeak prevention: A rubber sealing ring creates a tight barrier against leaks and fumes.\u003c\/li\u003e\n\u003cli\u003eFleet-ready design: Compatible with diesel tanks that use a 3-1\/2 inch cap and 5-1\/2 TPI, with safety chain and crossbar included.\u003c\/li\u003e\n\u003cli\u003eEasy replacement: 100% new and ready to install, potentially reducing downtime and shop visits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility and part details\u003c\/h3\u003e\n\u003cp\u003eThis cap is designed for a range of legacy models: Freightliner before 1984; Kenworth after 1984; Peterbilt before 1980; Western Star before 1983. Replacement part numbers include 572.1036, SNV431089, and K071-385-1234.\u003c\/p\u003e\n\n\u003ch3\u003eWhat you get\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 locking caps with four matching keys each\u003c\/li\u003e\n\u003cli\u003eSafety chain and crossbar as standard\u003c\/li\u003e\n\u003cli\u003eRubber seal and durable metal body for reliable operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation tips\u003c\/h3\u003e\n\u003cp\u003eNew and ready to install straight out of the box. Measure the diameter of your current cap or fill neck to confirm fit, and remove the blue protective film before use. If you have questions, our support team is ready to help.\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: What vehicles is this locking cap compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with Freightliner before 1984, Kenworth after 1984, Peterbilt before 1980, and Western Star before 1983.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this cap include a seal and keys?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It includes a rubber sealing ring and four keys for secure, convenient access.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"OURWILLSM","offers":[{"title":"Default Title","offer_id":42474508648533,"sku":"B0B5TRWBBH","price":67.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ourwillsm-locking-diesel-cap-freightliner-kenworth-western-star-01.jpg?v=1778249523","url":"https:\/\/plentytorque.co.uk\/products\/ourwillsm-2-piece-locking-diesel-fuel-cap-for-freightliner-kenworth-western-star-3-1-2-inch-5-5-tpi-4-keys","provider":"PlentyTorque","version":"1.0","type":"link"}