{"title":"Kubota U45 Tracks \u0026 Parts","description":"\u003cp\u003eOutfit your \u003cstrong\u003eKubota U45\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\n\u003ch3\u003eKubota U45 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\u003eChoose Your Tread\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eDirectional\u003c\/strong\u003e — The excavation specialist — directional tread optimized for digging and slope work.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eComplete the Kubota U45 Rebuild\u003c\/h3\u003e\u003cp\u003eComplete the rebuild with matched-fit components for the \u003cstrong\u003eKubota U45\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\n\u003ca href=\"\/products\/kubota-u45-track-roller\"\u003eBottom Roller\u003c\/a\u003e — OEM Part #RD411-21703\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eTracks That Cross Over\u003c\/h3\u003e\u003cp\u003eLooking for another machine? The \u003cstrong\u003e400x72.5Wx72\u003c\/strong\u003e size also fits:\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-304cr\"\u003eCat 304CR\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\u003c\/ul\u003e\n\u003ch3\u003eThe TrackTECH Difference\u003c\/h3\u003e\u003cul\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\u003eDrop-forged steel links\u003c\/strong\u003e for strength where the track meets the drive system.\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\u003eReady to roll? Buy your Kubota U45 undercarriage online now — or reach a track specialist at \u003ca href=\"tel:8508167898\"\u003e(850) 816-7898\u003c\/a\u003e. Use the \u003ca href=\"\/pages\/track-finder\"\u003eTrack Finder\u003c\/a\u003e to confirm the right build.\u003c\/p\u003e\u003ch2\u003eDirect Replacement Rubber Tracks for the Kubota U45\u003c\/h2\u003e\u003cp\u003eDirect replacement rubber tracks for the Kubota U45 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 Kubota U45. 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 Kubota 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 Kubota U45 use?\u003c\/h3\u003e\u003cp\u003eThe Kubota U45 uses a 400x72.5Wx72 rubber track. Note the W (wide 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 Kubota U45?\u003c\/h3\u003e\u003cp\u003eYes — this track is matched to the Kubota U45 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\u003eDirectional or block tread — which should I run?\u003c\/h3\u003e\u003cp\u003eFor mixed dirt and gravel, most Kubota U45 owners run a directional (multi-bar) tread for traction and mud release. Block tread wears better on hard surfaces and pavement.\u003c\/p\u003e\u003ch3\u003eDo Kubota U45 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 Kubota U45?\u003c\/h3\u003e\u003cp\u003eYes — along with the rubber track we carry bottom rollers for the Kubota U45, 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\/kubota-kx91-3\"\u003eKubota KX91-3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/kubota-kx161-3\"\u003eKubota KX161-3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/kubota-u35-4\"\u003eKubota U35-4\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/kubota-u55-5\"\u003eKubota U55-5\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/kubota-svl97-2\"\u003eKubota SVL97-2 Rubber Tracks\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/kubota-kx121-3\"\u003eKubota KX121-3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/kubota\"\u003eKubota Rubber Tracks \u0026amp; Undercarriage Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"bottom-roller-rd411-21703","title":"Kubota Bottom Roller | Part #TRRD411-21703","description":"\u003csection class=\"tt-product-description\" aria-labelledby=\"product-overview\"\u003e \u003ch2 id=\"product-overview\"\u003eKubota Bottom Roller | Part #TRRD411-21703\u003c\/h2\u003e \u003cp\u003eThis bottom roller is a new aftermarket undercarriage replacement part built to fit Kubota 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 Bottom Roller\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference part number:\u003c\/strong\u003e TRRD411-21703\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 bottom 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":52267985240376,"sku":"TT41121703","price":154.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/trrd411-21703-585192_2ad81dc4-33f7-4504-8fd2-2df1cdaefc8f.webp?v=1777382577"},{"product_id":"kubota-u45-rubber-tracks","title":"Kubota U45 Rubber Tracks | 400x72.5Wx72","description":"\u003cp\u003e\u003cstrong\u003eKubota U45 Rubber Tracks\u003c\/strong\u003e — OEM grade replacement tracks engineered for contractor-grade performance.\u003c\/p\u003e\u003cp\u003eDirect OEM grade replacement for the Kubota U45. Track size: \u003cstrong\u003e400x72.5Wx72\u003c\/strong\u003e. Tread pattern: \u003cstrong\u003eDirectional\u003c\/strong\u003e.\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 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\u003eTread Pattern:\u003c\/strong\u003e Directional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Make:\u003c\/strong\u003e Kubota\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e U45\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 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","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362286924088,"sku":"TT-U45-400X725WX72-DR","price":1677.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/16-directional-rubber-track-for-excavators_ab27adc4-677c-41f3-b194-ab0d7e73a3f8.webp?v=1778702596"},{"product_id":"kubota-u45-track-roller","title":"Kubota U45 Bottom Roller | Part #RD411-21703","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-style fitment\u003c\/strong\u003e — matched to the listed Kubota U45 application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty steel construction\u003c\/strong\u003e — built for compact equipment undercarriage wear points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady-to-install replacement\u003c\/strong\u003e — designed to replace the worn component without unnecessary modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrackTECH support\u003c\/strong\u003e — send your model and serial number if you want fitment verified before shipping.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRecommended:\u003c\/strong\u003e inspect your sprockets, rollers, idlers, and tracks together to avoid premature undercarriage wear.\u003c\/p\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 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","brand":"TrackTECH","offers":[{"title":"Default Title","offer_id":52362380804408,"sku":"TT-U45-TR-RD411-21703","price":154.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/trrd411-21703-585192_6d614e60-65e5-4ee8-b598-c14e24707118.webp?v=1778634795"}],"url":"https:\/\/newrubbertrack.com\/collections\/kubota-u45.oembed","provider":"TrackTECH","version":"1.0","type":"link"}