// Q&A · Rollers & Idlers
Do you supply Cat 963 loader idlers and replacement undercarriage parts?
Expert Answer
Yes. VANROCK supplies replacement idlers and other undercarriage parts for Caterpillar 963 loader applications through our appointed dealer network. Idlers help guide the track, maintain correct tension, and support smooth travel, so wear or bearing damage can quickly affect performance. We can also supply matching parts such as track chains, rollers, sprockets, track shoes, and track bolts and nuts, depending on your machine setup. If you are replacing a worn idler, it is smart to inspect the track chain, rollers, and sprocket teeth at the same time to avoid uneven wear. VANROCK is an independent manufacturer and is not affiliated with Caterpillar. Pricing and part availability are quoted on request through our dealers.
Answered by VANROCK specialists · Published 8/15/2026
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