{"product_id":"bobcat-t770-bottom-roller-fitment","title":"Bobcat T770 Bottom Roller","description":"\u003ch2\u003eBobcat T770 Bottom Roller\u003c\/h2\u003e\u003cp\u003eUse this machine-specific fitment page to identify the correct heavy-duty bottom roller for a Bobcat T770. TrackTECH evaluates the full machine serial number and undercarriage configuration before selecting the physical replacement part.\u003c\/p\u003e\u003ch2\u003eSerial-Number Fitment\u003c\/h2\u003e\u003cp\u003eThe governed T770 roller record identifies 6693239 and 6689371 on earlier machines, then 7243576 and 7228629 on later serial ranges depending on undercarriage configuration.\u003c\/p\u003e\u003ch2\u003eEarlier Machines\u003c\/h2\u003e\u003cp\u003eEarlier T770 serial ranges use 6693239 with roller suspension and 6689371 with the solid mounted undercarriage. These mapped router variants are linked to the physical TrackTECH roller products in Shopify.\u003c\/p\u003e\u003ch2\u003eLater Serial Ranges\u003c\/h2\u003e\u003cp\u003eLater A3P8, A3P9, and B3BW serial ranges in the governed record use 7243576 for roller-suspension machines and 7228629 for solid-mount machines. Those references are retained in the fitment logic but do not currently have sellable canonical Shopify products, so they route to parts-counter verification instead of checkout.\u003c\/p\u003e\u003ch2\u003eAbout 6732901B\u003c\/h2\u003e\u003cp\u003e6732901B appeared on the older archived T770 shell, but the current governed T770 serial-fitment records do not support it as an automatic T770 match. TrackTECH therefore does not present it as a T770 router option without additional verification.\u003c\/p\u003e\u003ch2\u003eInspect the Full Undercarriage\u003c\/h2\u003e\u003cp\u003eBottom rollers, idlers, sprockets, and rubber tracks wear as a system. Inspect roller bearings, track alignment, tension, idler condition, and sprocket wear before installing new undercarriage components. TrackTECH provides fitment support, fast nationwide shipping, and 24-month warranty coverage against manufacturing defects.\u003c\/p\u003e","brand":"TrackTECH","offers":[{"title":"6689371","offer_id":53009613717816,"sku":"TT-T770-TR-6689371","price":331.25,"currency_code":"USD","in_stock":true},{"title":"6693239","offer_id":53016257724728,"sku":"TT-T770-TR-6693239","price":365.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/3493\/3560\/files\/bobcat-t770-track-roller-hero_ace92e9b-58b9-4777-b1d7-72bcbed5cedc.jpg?v=1790201254","url":"https:\/\/newrubbertrack.com\/products\/bobcat-t770-bottom-roller-fitment","provider":"TrackTECH","version":"1.0","type":"link"}