{"title":"Komatsu PC45 Tracks \u0026 Parts","description":"\u003cp\u003eOutfit your \u003cstrong\u003eKomatsu PC45\u003c\/strong\u003e mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size \u003cstrong\u003e400x72.5Nx72\u003c\/strong\u003e, backed by a 24-month warranty and free freight to the lower 48.\u003c\/p\u003e\u003ch3\u003eKomatsu PC45 Track Specs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack size:\u003c\/strong\u003e 400x72.5Nx72\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 Offset 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\u003eComplete the Komatsu PC45 Rebuild\u003c\/h3\u003e\u003cp\u003eComplete the rebuild with matched-fit components for the \u003cstrong\u003eKomatsu PC45\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/undercarriage-parts\"\u003eTop Roller\u003c\/a\u003e — OEM Part #1180-9221\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/undercarriage-parts\"\u003eBottom Roller\u003c\/a\u003e — OEM Part #20T-30-00071\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAlso Fits These Machines\u003c\/h3\u003e\u003cp\u003eLooking for another machine? The \u003cstrong\u003e400x72.5Nx72\u003c\/strong\u003e size also fits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc40mr\"\u003eKomatsu PC40MR\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc40mr-1\"\u003eKomatsu PC40MR-1\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc40mrx\"\u003eKomatsu PC40MRX\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc40r\"\u003eKomatsu PC40R\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc45-1\"\u003eKomatsu PC45-1\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\u003eDrop-forged steel links\u003c\/strong\u003e for strength where the track meets the drive system.\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\u003ePremium virgin rubber\u003c\/strong\u003e — anti-chunk compound built for long service life in abrasive conditions.\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\u003c\/ul\u003e\n\u003cp\u003eOrder your Komatsu PC45 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\u003ch2\u003eDirect Replacement Rubber Tracks for the Komatsu PC45\u003c\/h2\u003e\u003cp\u003eDirect replacement rubber tracks for the Komatsu PC45 are built for heavy-duty compact equipment applications where traction, stability, and uptime matter. These tracks are designed for dependable grip, smooth travel, and consistent performance across dirt, clay, gravel, demolition debris, utility work, grading, land clearing, excavation, and mixed jobsite terrain.\u003c\/p\u003e\u003ch3\u003eHeavy-Duty Construction for Daily Work\u003c\/h3\u003e\u003cp\u003ePremium virgin rubber compounds help resist tearing, chunking, cracking, dry rot, and premature tread wear under demanding field conditions. Continuous steel cord reinforcement adds internal strength, helps reduce stretching, and supports stable track performance through repeated turning, travel, and loading.\u003c\/p\u003e\u003ch3\u003eOEM Fit Guarantee\u003c\/h3\u003e\u003cp\u003eMachine-specific sizing, steel link spacing, and guide lug geometry are built for proper undercarriage engagement on the Komatsu PC45. Precision-aligned fitment helps support smooth travel, stable tracking, reduced vibration, and reliable sprocket contact.\u003c\/p\u003e\u003ch3\u003eBuilt to Protect the Undercarriage System\u003c\/h3\u003e\u003cp\u003eA well-built rubber track helps improve machine control while limiting unnecessary stress on rollers, idlers, and sprockets. For contractors running Komatsu equipment, that means better ride quality, stronger traction, less downtime, and better value over the life of the track.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat size rubber track does the Komatsu PC45 use?\u003c\/h3\u003e\u003cp\u003eThe Komatsu PC45 uses a 400x72.5Nx72 rubber track. Note the N (narrow guide) guide-lug type — other guide types won't seat correctly on the rollers. Always confirm against your current track or the machine's spec plate, since some units shipped with more than one option.\u003c\/p\u003e\u003ch3\u003eWill this track fit my Komatsu PC45?\u003c\/h3\u003e\u003cp\u003eYes — this track is matched to the Komatsu PC45 by size and tread pattern. If your machine has a serial break or factory option, send the serial number and we'll verify fitment before shipping.\u003c\/p\u003e\u003ch3\u003eHow do I confirm the right track size for my Komatsu PC45?\u003c\/h3\u003e\u003cp\u003eRead the size stamped on the inside of your current track, or measure width x pitch x links. Not sure? Message us and we'll match it.\u003c\/p\u003e\u003ch3\u003eDo Komatsu PC45 tracks sell in pairs?\u003c\/h3\u003e\u003cp\u003eTracks are priced individually; a full machine needs two. Most owners replace both at once so wear stays even.\u003c\/p\u003e\u003ch3\u003eDo you stock undercarriage parts for the Komatsu PC45?\u003c\/h3\u003e\u003cp\u003eYes — along with the rubber track we carry bottom rollers, top rollers for the Komatsu PC45, so you can refresh the whole undercarriage in one order.\u003c\/p\u003e\u003ch3\u003eRelated Collections\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc55mr-3\"\u003eKomatsu PC55MR\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc30mr\"\u003eKomatsu PC30MR Tracks\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc27mr\"\u003eKomatsu PC27MR\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc35mr\"\u003eKomatsu PC35MR Tracks\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-pc20mr\"\u003eKomatsu PC20MR Tracks\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu-ck35\"\u003eKomatsu CK35\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/komatsu\"\u003eKomatsu Rubber Tracks \u0026amp; Undercarriage Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"400x72-5kx72-directional","title":"400x72.5Nx72 Rubber Track | Directional","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e \u003ch2 id=\"product-overview\"\u003e400x72.5Kx72 Rubber Track | Directional\u003c\/h2\u003e \u003cp\u003eThis replacement rubber track is built to fit Komatsu, Schaeff equipment while helping deliver dependable traction, ride quality, and jobsite uptime. It is a strong option for contractors replacing worn, torn, or dry-rotted tracks on compact construction equipment.\u003c\/p\u003e \u003ch3\u003eProduct details\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTrack size:\u003c\/strong\u003e 400x72.5Kx72\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New aftermarket replacement\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSold by:\u003c\/strong\u003e Individual track unless otherwise stated\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eBuilt for daily work\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eContinuous steel cable reinforcement for strength under load\u003c\/li\u003e \u003cli\u003eDurable rubber compound designed to resist wear, chunking, and cracking\u003c\/li\u003e \u003cli\u003ePrecision-molded guide lugs for stable tracking on compatible undercarriages\u003c\/li\u003e \u003cli\u003eDesigned for traction, flotation, and smooth operation across dirt, gravel, mud, and mixed jobsite surfaces\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack Size:\u003c\/strong\u003e 400x72.5Kx72\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\u003eTread Pattern:\u003c\/strong\u003e Directional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Multi-machine — confirm by track size and link count\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-day shipping\u003c\/strong\u003e on in-stock orders placed before 12 PM CT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Shipping\u003c\/strong\u003e to the Lower 48\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 verified before shipping\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52267969347896,"sku":"TNT400725N72HD","price":1737.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/16-directional-hero_50ae9b40-d593-450a-b8f2-008f9328a3f9.webp?v=1777385357"},{"product_id":"carrier-roller-1180-9221","title":"Hitachi ZX40U \/ ZX40U-2 Top Roller | Part #CR1180-9221","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e \u003ch2 id=\"product-overview\"\u003eCarrier Roller | Part #CR1180-9221\u003c\/h2\u003e \u003cp\u003eThis carrier roller is a new aftermarket undercarriage replacement part built for compact equipment to help restore proper track movement, alignment, and machine reliability.\u003c\/p\u003e \u003ch3\u003eProduct details\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart type:\u003c\/strong\u003e Carrier Roller\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference part number:\u003c\/strong\u003e CR1180-9221\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New aftermarket replacement\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Compact equipment undercarriage repair\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eWhy this part matters\u003c\/h3\u003e \u003cp\u003eA worn carrier roller can cause track misalignment, accelerated track wear, vibration, and reduced undercarriage life. Replacing worn components helps the track system run straighter and protects the rest of the undercarriage.\u003c\/p\u003e \u003ch3\u003eBuild and fitment notes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDesigned to replace worn or damaged undercarriage components\u003c\/li\u003e \u003cli\u003eBuilt for contractor-grade compact equipment use\u003c\/li\u003e \u003cli\u003eSupports and guides the track system\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eRecommended with\u003c\/h3\u003e \u003cp\u003eFor best service life, inspect the matching rubber tracks, drive sprockets, rollers, and idlers at the same time. \u003ca href=\"\/pages\/request-a-quote\"\u003eContact our fitment team\u003c\/a\u003e to confirm the correct parts for your machine.\u003c\/p\u003e\n\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-day shipping\u003c\/strong\u003e on in-stock orders placed before 12 PM CT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Shipping\u003c\/strong\u003e to the Lower 48\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 verified before shipping\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52267969544504,"sku":"TT11809221","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/cr1180-9221-585192_2a7e698e-2a7a-42cc-b6ca-bb3d453db05c.webp?v=1777382461"},{"product_id":"komatsu-pc45-rubber-tracks","title":"Komatsu PC45 Rubber Tracks | 400x72.5Nx72","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e\u003ch2 id=\"product-overview\"\u003eKomatsu PC45 Rubber Tracks | 400x72.5Nx72\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eKomatsu PC45 Rubber Tracks\u003c\/strong\u003e - OEM grade replacement tracks engineered for contractor-grade performance.\u003c\/p\u003e\n\u003cp\u003eDirect replacement for the Komatsu PC45. Track size: \u003cstrong\u003e400x72.5Nx72\u003c\/strong\u003e. Tread pattern: \u003cstrong\u003eDirectional\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack Size:\u003c\/strong\u003e 400x72.5Nx72\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 Type:\u003c\/strong\u003e N\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 Komatsu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e PC45\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe TrackTECH advantage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-day shipping\u003c\/strong\u003e on in-stock orders placed before 12 PM CT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Shipping\u003c\/strong\u003e to the Lower 48\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\u003cstrong\u003eFitment verified before shipping\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362277716280,"sku":"TT-PC45-400X725NX72-DR","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/16-directional-hero_f76799b9-0025-40da-b1d5-cefddd00d0ac.webp?v=1778634305"},{"product_id":"komatsu-pc45-track-roller","title":"Komatsu PC45 Bottom Roller | Part #20T-30-00071","description":"\u003cp\u003e\u003cstrong\u003eKomatsu PC45 Track Roller\u003c\/strong\u003e — OEM grade replacement part for your Komatsu PC45.\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":52362371399992,"sku":"TT-PC45-TR-20T-30-00071","price":166.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/bottom-roller_1_067c7dcb-cf00-4fb1-9baf-d1d052fba52a.webp?v=1778640376"}],"url":"https:\/\/newrubbertrack.com\/collections\/komatsu-pc45.oembed","provider":"TrackTECH","version":"1.0","type":"link"}