Liebherr
Liebherr owners arrive with a part in mind before a model, sprockets, bottom rollers, track rollers, then the 313 rubber track, so PartsForMachines lists the parts first. Sprockets, bottom rollers, track rollers and roller springs for the R-series excavators are matched to the model in the Machinery Parts Finder, with the price on every listing. The R313 rubber track and the R912 bottom roller lead, and the R912 has a model page of its own.
Liebherr sprockets, bottom rollers and tracks: R313, R912, R914, R922, R924
Sprockets, bottom rollers, track rollers, roller springs and rubber tracks are listed against the Liebherr model with width, pitch and link count on the listing, and the Compatible tab usually lists several R models per roller. Starter motors and alternators follow.
If it is an R912 bottom roller, the model page is the fastest route. For everything else, the Machinery Parts Finder: Liebherr, the R model from the dropdown, then the undercarriage part. A Liebherr part number goes into the header search. Plate on the counterweight gone, photo to 07754288583 on WhatsApp. The Compatible tab confirms the fit.
A Liebherr bottom roller is a press job, so track-press and roller-fitting kit head the wider range, with hydraulic oil to the Liebherr grade through the Oil Finder. Batteries, filters, seats and the rest are matched by specification. Not in the Finder? Ask Simon.