{"title":"CAT 304CR Tracks \u0026 Parts","description":"\u003cp\u003eOutfit your \u003cstrong\u003eCat 304CR\u003c\/strong\u003e mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size \u003cstrong\u003e400x72.5Wx72\u003c\/strong\u003e, backed by a 24-month warranty and free freight to the lower 48.\u003c\/p\u003e\u003ch3\u003eCat 304CR Track Specs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack size:\u003c\/strong\u003e 400x72.5Wx72\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 400 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch:\u003c\/strong\u003e 72.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinks:\u003c\/strong\u003e 72\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide:\u003c\/strong\u003e Wide guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTread Options for the Cat 304CR\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eDirectional\u003c\/strong\u003e — Mini-excavator standard — angled lugs for digging, grading and trenching traction.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eMatched Undercarriage Components\u003c\/h3\u003e\u003cp\u003eComplete the rebuild with matched-fit components for the \u003cstrong\u003eCat 304CR\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cat-304cr-sprocket\"\u003eDrive Sprocket\u003c\/a\u003e — OEM Part #158-4795\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cat-304cr-front-idler\"\u003eFront Idler\u003c\/a\u003e — OEM Part #241-5973\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cat-304cr-carrier-roller\"\u003eTop Roller\u003c\/a\u003e — OEM Part #277-8576\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cat-304cr-track-roller\"\u003eBottom Roller\u003c\/a\u003e — OEM Part #340-8957\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAlso Fits These Machines\u003c\/h3\u003e\u003cp\u003eThese machines run the same \u003cstrong\u003e400x72.5Wx72\u003c\/strong\u003e track, so this fitment crosses over:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/case-ck50\"\u003eCase CK50\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/case-ck52\"\u003eCase CK52\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/cat-305-5\"\u003eCat 305.5\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/hitachi-ex40\"\u003eHitachi EX40\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/hitachi-ex40-2\"\u003eHitachi EX40-2\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/hitachi-ex40u\"\u003eHitachi EX40U\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/hitachi-ex45-2\"\u003eHitachi EX45-2\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/hitachi-zx50u\"\u003eHitachi ZX50U\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/ihi-40nx\"\u003eIHI 40NX\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/ihi-45n\"\u003eIHI 45N\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuilt to Outlast OEM\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree freight to the lower 48\u003c\/strong\u003e — every order ships free, with same-day dispatch on in-stock items.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision OEM alignment\u003c\/strong\u003e — a reinforced roller path keeps running smooth and vibration low.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous steel cord\u003c\/strong\u003e — up to 40% stronger than typical aftermarket tracks, resisting stretch and de-tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-forged steel links\u003c\/strong\u003e for strength where the track meets the drive system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrder your Cat 304CR tracks and parts today, or call \u003ca href=\"tel:8508167898\"\u003e(850) 816-7898\u003c\/a\u003e for build help. Not sure on size or guide? The \u003ca href=\"\/pages\/track-finder\"\u003eTrack Finder\u003c\/a\u003e has you covered.\u003c\/p\u003e","products":[{"product_id":"cat-304cr-rubber-tracks","title":"CAT 304CR Rubber Tracks | 400x72.5Wx72","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e\u003ch2 id=\"product-overview\"\u003eCAT 304CR Rubber Tracks 400x72.5Wx72\u003c\/h2\u003e\n\u003cp\u003eThese replacement rubber tracks are built for contractors searching for mini excavator tracks with dependable traction, steady ride quality and fewer downtime surprises.\u003c\/p\u003e\n\u003ch3\u003eFitment and options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CAT 304CR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack size options:\u003c\/strong\u003e 400x72.5Wx72\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTread pattern options:\u003c\/strong\u003e high-performance replacement tread\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand-new aftermarket replacement rubber track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eJobsite-ready construction\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasion-resistant rubber:\u003c\/strong\u003e resists cuts and chunking in rough terrain for more hours per set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous steel cord:\u003c\/strong\u003e helps prevent snapping under heavy loads and mid-project blowouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForged steel links:\u003c\/strong\u003e support proper undercarriage engagement and help reduce premature wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized tread patterns:\u003c\/strong\u003e improve traction across mud, rock, clay, sand and mixed jobsite surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFitment verified before shipping so the track matches your machine and application.\u003c\/li\u003e\n\u003cli\u003eFree Lower 48 shipping on qualifying rubber track orders.\u003c\/li\u003e\n\u003cli\u003eSame-day shipping on in-stock orders placed before 12 PM CT.\u003c\/li\u003e\n\u003cli\u003eBuilt to maximize value per hour and keep your fleet moving FWD.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362227679544,"sku":"TT-304CR-400X725WX72-DR","price":1719.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/400x72.5x72-mx-01_48998e0c-c27f-4f60-9c36-5b9d377300e7.webp?v=1784581332"},{"product_id":"cat-304cr-sprocket","title":"CAT 304CR Sprocket | Part #158-4795","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e\u003ch2 id=\"product-overview\"\u003eCAT 304CR Drive Sprocket 158-4795 Replacement\u003c\/h2\u003e\n\u003cp\u003eThis CAT 304CR drive sprocket is a heavy-duty replacement undercarriage part built to help restore stable tracking, reduce wear and keep the machine jobsite-ready.\u003c\/p\u003e\n\u003ch3\u003eFitment and details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CAT 304CR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart type:\u003c\/strong\u003e Drive Sprocket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference part number:\u003c\/strong\u003e 158-4795\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand-new aftermarket replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy it matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHelps protect the undercarriage from premature wear caused by loose or worn components.\u003c\/li\u003e\n\u003cli\u003eSupports smoother tracking for less downtime and better value per hour.\u003c\/li\u003e\n\u003cli\u003eBuilt for contractors who need dependable replacement parts without dealer delays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFitment verified before shipping.\u003c\/li\u003e\n\u003cli\u003eFree Lower 48 shipping on qualifying orders.\u003c\/li\u003e\n\u003cli\u003eFast support from rubber track and undercarriage specialists.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362341220664,"sku":"TT-304CR-SP-158-4795","price":217.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/sp158-4795-hero-01_ce02c1e7-3d56-46dd-9439-885dff4dbd57.webp?v=1784327174"},{"product_id":"cat-304cr-front-idler","title":"CAT 304CR Front Idler | Part #241-5973","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e\u003ch2 id=\"product-overview\"\u003eCAT 304CR Front Idler 241-5973 Replacement\u003c\/h2\u003e\n\u003cp\u003eThis CAT 304CR front idler is a heavy-duty replacement undercarriage part built to help restore stable tracking, reduce wear and keep the machine jobsite-ready.\u003c\/p\u003e\n\u003ch3\u003eFitment and details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CAT 304CR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart type:\u003c\/strong\u003e Front Idler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference part number:\u003c\/strong\u003e 241-5973\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand-new aftermarket replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy it matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHelps protect the undercarriage from premature wear caused by loose or worn components.\u003c\/li\u003e\n\u003cli\u003eSupports smoother tracking for less downtime and better value per hour.\u003c\/li\u003e\n\u003cli\u003eBuilt for contractors who need dependable replacement parts without dealer delays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFitment verified before shipping.\u003c\/li\u003e\n\u003cli\u003eFree Lower 48 shipping on qualifying orders.\u003c\/li\u003e\n\u003cli\u003eFast support from rubber track and undercarriage specialists.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362341253432,"sku":"TT-304CR-FI-241-5973","price":474.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/fi241-5973-hero-01_99785363-1f15-459c-ac16-72ae1a9a2e7d.webp?v=1784327177"},{"product_id":"cat-304cr-track-roller","title":"CAT 304CR Bottom Roller | Part #340-8957","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e\u003ch2 id=\"product-overview\"\u003eCAT 304CR Bottom Roller 340-8957 Replacement\u003c\/h2\u003e\n\u003cp\u003eThis CAT 304CR bottom roller is a heavy-duty replacement undercarriage part built to help restore stable tracking, reduce wear and keep the machine jobsite-ready.\u003c\/p\u003e\n\u003ch3\u003eFitment and details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CAT 304CR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart type:\u003c\/strong\u003e Bottom Roller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference part number:\u003c\/strong\u003e 340-8957\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand-new aftermarket replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy it matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHelps protect the undercarriage from premature wear caused by loose or worn components.\u003c\/li\u003e\n\u003cli\u003eSupports smoother tracking for less downtime and better value per hour.\u003c\/li\u003e\n\u003cli\u003eBuilt for contractors who need dependable replacement parts without dealer delays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFitment verified before shipping.\u003c\/li\u003e\n\u003cli\u003eFree Lower 48 shipping on qualifying orders.\u003c\/li\u003e\n\u003cli\u003eFast support from rubber track and undercarriage specialists.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362341286200,"sku":"TT-304CR-TR-340-8957","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/tr340-8957-hero-01_2969ffe4-3f7e-48aa-8795-555db553cea9.webp?v=1784327181"},{"product_id":"cat-304cr-carrier-roller","title":"CAT 304CR Top Roller | Part #277-8576","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e\u003ch2 id=\"product-overview\"\u003eCAT 304CR Top Roller 277-8576 Replacement\u003c\/h2\u003e\n\u003cp\u003eThis CAT 304CR top roller is a heavy-duty replacement undercarriage part built to help restore stable tracking, reduce wear and keep the machine jobsite-ready.\u003c\/p\u003e\n\u003ch3\u003eFitment and details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CAT 304CR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart type:\u003c\/strong\u003e Top Roller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference part number:\u003c\/strong\u003e 277-8576\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand-new aftermarket replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy it matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHelps protect the undercarriage from premature wear caused by loose or worn components.\u003c\/li\u003e\n\u003cli\u003eSupports smoother tracking for less downtime and better value per hour.\u003c\/li\u003e\n\u003cli\u003eBuilt for contractors who need dependable replacement parts without dealer delays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFitment verified before shipping.\u003c\/li\u003e\n\u003cli\u003eFree Lower 48 shipping on qualifying orders.\u003c\/li\u003e\n\u003cli\u003eFast support from rubber track and undercarriage specialists.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362341318968,"sku":"TT-304CR-CR-277-8576","price":163.45,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/cr277-8576-hero-01_d4e87214-30fd-47d3-a10f-c11012a3f67f.webp?v=1784327184"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/collections\/cat-304cr-rubber-track-3791476_ed352f82847c629cf9ee8644e488eb83_86eeeb441b022b68.webp?v=1784741202","url":"https:\/\/newrubbertrack.com\/collections\/cat-304cr.oembed","provider":"TrackTECH","version":"1.0","type":"link"}