{"product_id":"4-locking-diesel-fuel-cap-for-1972-2017-peterbilt-330-587-trucks-11-04859-200","title":"4\" Locking Diesel Fuel Cap For 1972-2017 Peterbilt 330-587 Trucks 11-04859-200","description":"\u003ch2\u003e4\" Locking Diesel Fuel Cap for Peterbilt\u003c\/h2\u003e\u003cp\u003eThis 4-inch locking diesel fuel cap fits 1972-2017 Peterbilt 330-587 series trucks and cross-references with OEM part number 11-04859-200, providing a secure, vented replacement that deters fuel theft.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe 4\" locking diesel fuel cap for Peterbilt replaces worn or missing caps on Class 6-8 trucks, preventing fuel contamination and siphoning. Its heavy-duty locking mechanism keeps diesel secure on long hauls, and the 4-inch diameter matches the tank neck of Peterbilt 330 through 587 models built from 1972 to 2017. Fleet managers and owner-operators depend on this 4\" locking diesel fuel cap to cut fuel loss and meet transport safety standards.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eZinc die-cast body withstands UV, road chemicals, and impact without cracking\u003c\/li\u003e\n\u003cli\u003eDust-tight seal blocks dirt and moisture from entering the fuel tank\u003c\/li\u003e\n\u003cli\u003eTwo-key locking system prevents casual fuel theft and tampering\u003c\/li\u003e\n\u003cli\u003ePressure-relief vent maintains proper tank ventilation during temperature swings\u003c\/li\u003e\n\u003cli\u003eLarge knurled grip allows easy removal even with greasy gloves\u003c\/li\u003e\n\u003cli\u003eCompatible with standard 4-inch diesel tank necks on Peterbilt trucks from 1972-2017\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Peterbilt 330\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 335\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 340\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 348\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 357\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 377\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 378\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 379\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 385\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 386\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 388\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 389\u003c\/li\u003e\n\u003cli\u003efor Peterbilt 587\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLong-haul overnight parking where fuel theft is a known risk\u003c\/li\u003e\n\u003cli\u003eConstruction sites where machines are often left unattended for days\u003c\/li\u003e\n\u003cli\u003eFleet yards wanting a single locking cap solution across mixed Peterbilt rigs\u003c\/li\u003e\n\u003cli\u003eReplacing a stuck or damaged cap that no longer seals the tank\u003c\/li\u003e\n\u003cli\u003eEnsuring compliance with DOT fuel cap leak-down tests during inspections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLocking diesel fuel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDie-cast zinc with steel locking core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11-04859-200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1972-2017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this cap fit Peterbilt models with an angled or recessed tank filler neck? \u003cstrong\u003eA:\u003c\/strong\u003e The cap is designed for flat, standard 4-inch filler necks; slight recess or angling is usually tolerated, but measure your neck depth and clearance before ordering to avoid interference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What should I do if the locking mechanism becomes stiff over time? \u003cstrong\u003eA:\u003c\/strong\u003e Apply a dry graphite lubricant into the keyway once a season and rotate the key several times to distribute it; avoid liquid oils that attract dust and gum up the tumbler.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44965128437846,"sku":"ZZ3A00316","price":63.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/57_2bc1559e-75e8-4890-b5c4-07753dd5c32b.jpg?v=1781654014","url":"https:\/\/www.solidspare.com\/products\/4-locking-diesel-fuel-cap-for-1972-2017-peterbilt-330-587-trucks-11-04859-200","provider":"Solid Spare","version":"1.0","type":"link"}