{"title":"CAT 304ECR","description":"\u003cp\u003eOutfit your \u003cstrong\u003eCAT 304ECR\u003c\/strong\u003e mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size \u003cstrong\u003e300x52.5Wx90\u003c\/strong\u003e, backed by a 24-month warranty and free freight to the lower 48.\u003c\/p\u003e\n\u003ch3\u003eCAT 304ECR Track Specs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack size:\u003c\/strong\u003e 300x52.5Wx90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 300 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch:\u003c\/strong\u003e 52.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinks:\u003c\/strong\u003e 90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide:\u003c\/strong\u003e Wide guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTread Patterns\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eDirectional\u003c\/strong\u003e — Angled directional lugs purpose-built for excavation, grading and trenching.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eCAT 304ECR Undercarriage Lineup\u003c\/h3\u003e\u003cp\u003eComplete the rebuild with matched-fit components for the \u003cstrong\u003eCAT 304ECR\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cat-304ecr-sprocket\"\u003eDrive Sprocket\u003c\/a\u003e — OEM Part #264-5371\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cat-304ecr-front-idler\"\u003eFront Idler\u003c\/a\u003e — OEM Part #267-4829\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cat-304ecr-carrier-roller\"\u003eTop Roller\u003c\/a\u003e — OEM Part #266-8794\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cat-304ecr-track-roller\"\u003eBottom Roller\u003c\/a\u003e — OEM Part #266-8793\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAlso Fits These Machines\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003e300x52.5Wx90\u003c\/strong\u003e track size is shared across these models — same track, verified cross-fit:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/cat-303-5dcr\"\u003eCAT 303.5DCR\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/ihi-35uj\"\u003eIHI 35UJ\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/ihi-35v-4\"\u003eIHI 35V-4\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/new-holland-eh35\"\u003eNew Holland EH35\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat You Get with TrackTECH\u003c\/h3\u003e\u003cul\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\u003cli\u003e\n\u003cstrong\u003eEndless high-tensile cables\u003c\/strong\u003e — single-cure construction with no weak splice point.\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\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\u003c\/ul\u003e\n\u003cp\u003eUpgrade your CAT 304ECR today. Order online for free freight, or call \u003ca href=\"tel:8508167898\"\u003e(850) 816-7898\u003c\/a\u003e. Need a hand matching size and guide? Try the \u003ca href=\"\/pages\/track-finder\"\u003eTrack Finder\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"cat-304ecr-rubber-tracks","title":"CAT 304ECR Rubber Tracks | 300x52.5Wx90","description":"\u003cp\u003e\u003cstrong\u003eCAT 304ECR Rubber Tracks\u003c\/strong\u003e — OEM grade replacement tracks engineered for contractor-grade performance.\u003c\/p\u003e\u003cp\u003eThis product covers all factory-fit track sizes and tread patterns for the CAT 304ECR. Select your size and tread combination from the dropdown.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Steel Cord\u003c\/strong\u003e — 40% stronger than competitor tracks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Virgin Rubber\u003c\/strong\u003e — anti-chunk, anti-tear compound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-Forged Steel Links\u003c\/strong\u003e — precision OEM alignment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-Month Warranty\u003c\/strong\u003e — backed by TrackTECH's contractor guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack Size:\u003c\/strong\u003e 300x52.5Wx90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 300 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch:\u003c\/strong\u003e 52.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinks:\u003c\/strong\u003e 90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTread Pattern:\u003c\/strong\u003e Directional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Make:\u003c\/strong\u003e Cat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e 304ECR\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-day shipping\u003c\/strong\u003e on in-stock orders placed before 2 PM CT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree freight\u003c\/strong\u003e to the lower 48 states\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-month warranty\u003c\/strong\u003e on materials and workmanship\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContractor pricing\u003c\/strong\u003e — bulk and fleet discounts available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment guaranteed\u003c\/strong\u003e — we verify before we ship\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TrackTECH","offers":[{"title":"300x52.5Wx90 – Directional","offer_id":52362228007224,"sku":"TT-CAT-304ECR-300525W90-HDD","price":984.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/300x52.5Wx90-hero.webp?v=1778781982"},{"product_id":"cat-304ecr-front-idler","title":"Cat Front Idler | Part #267-4829","description":"\u003cp\u003e\u003cstrong\u003eCAT 304ECR Front Idler\u003c\/strong\u003e — OEM grade replacement part for your CAT 304ECR.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeat-treated steel construction\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to OEM tolerances\u003c\/li\u003e\n\u003cli\u003eDirect replacement, no modifications required\u003c\/li\u003e\n\u003cli\u003e12-month warranty against manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-day shipping\u003c\/strong\u003e on in-stock orders placed before 2 PM CT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree freight\u003c\/strong\u003e to the lower 48 states\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-month warranty\u003c\/strong\u003e on materials and workmanship\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContractor pricing\u003c\/strong\u003e — bulk and fleet discounts available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment guaranteed\u003c\/strong\u003e — we verify before we ship\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TrackTECH","offers":[{"title":"PN 267-4829","offer_id":52362341679416,"sku":"TT-304ECR-FI-267-4829","price":570.14,"currency_code":"USD","in_stock":true},{"title":"PN 2674829","offer_id":52362341712184,"sku":"TT-304ECR-FI-2674829","price":455.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/front-idler-ca935_fbd4f3a0-6171-4a65-b99e-b22ab05d9ef2.webp?v=1778640366"},{"product_id":"cat-304ecr-sprocket","title":"Cat Drive Sprocket | Part #264-5371","description":"\u003cp\u003e\u003cstrong\u003eCAT 304ECR Sprocket\u003c\/strong\u003e — OEM grade replacement part for your CAT 304ECR.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeat-treated steel construction\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to OEM tolerances\u003c\/li\u003e\n\u003cli\u003eDirect replacement, no modifications required\u003c\/li\u003e\n\u003cli\u003e12-month warranty against manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-day shipping\u003c\/strong\u003e on in-stock orders placed before 2 PM CT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree freight\u003c\/strong\u003e to the lower 48 states\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-month warranty\u003c\/strong\u003e on materials and workmanship\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContractor pricing\u003c\/strong\u003e — bulk and fleet discounts available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment guaranteed\u003c\/strong\u003e — we verify before we ship\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362341744952,"sku":"TT-304ECR-SP-264-5371","price":326.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/sp264-5371-585192_d18ab095-d1d2-4e51-8c13-fdaa932cfbc6.webp?v=1778634610"},{"product_id":"cat-304ecr-track-roller","title":"Cat Bottom Roller | Part #266-8793","description":"\u003cp\u003e\u003cstrong\u003eCAT 304ECR Track Roller\u003c\/strong\u003e — OEM grade replacement part for your CAT 304ECR.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeat-treated steel construction\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to OEM tolerances\u003c\/li\u003e\n\u003cli\u003eDirect replacement, no modifications required\u003c\/li\u003e\n\u003cli\u003e12-month warranty against manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-day shipping\u003c\/strong\u003e on in-stock orders placed before 2 PM CT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree freight\u003c\/strong\u003e to the lower 48 states\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-month warranty\u003c\/strong\u003e on materials and workmanship\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContractor pricing\u003c\/strong\u003e — bulk and fleet discounts available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment guaranteed\u003c\/strong\u003e — we verify before we ship\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362341777720,"sku":"TT-304ECR-TR-266-8793","price":126.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/tr266-8793-585192_bd982937-5fcf-48b7-a0ec-5fa97a2ade0f.webp?v=1778634611"},{"product_id":"cat-304ecr-carrier-roller","title":"Cat Top Roller | Part #266-8794","description":"\u003cp\u003e\u003cstrong\u003eCAT 304ECR Carrier Roller\u003c\/strong\u003e — OEM grade replacement part for your CAT 304ECR.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeat-treated steel construction\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to OEM tolerances\u003c\/li\u003e\n\u003cli\u003eDirect replacement, no modifications required\u003c\/li\u003e\n\u003cli\u003e12-month warranty against manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe TrackTECH 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Title","offer_id":52362341908792,"sku":"TT-304ECR-CR-266-8794","price":208.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/cr266-8794-585192_e06b5fca-ee1a-416b-ba83-5e5baba766fd.webp?v=1778634610"}],"url":"https:\/\/newrubbertrack.com\/collections\/cat-304ecr.oembed","provider":"TrackTECH","version":"1.0","type":"link"}