// Q&A · Buying Advice
How do I find the right undercarriage parts using my machine serial number?
Expert Answer
The machine serial number is the fastest way to identify the exact undercarriage configuration, because it tells you the build version, not just the model name. Use it to pull the correct parts book or dealer lookup, then confirm the key undercarriage details before ordering.
With the serial number in hand, check the items that can change within the same model range: track chain pitch, link count, shoe width, roller and idler sizes, sprocket or segment tooth count, and whether the machine uses sealed, lubricated, or rubber undercarriage components. Even small production changes can affect fit, so a model match alone is not enough.
If you are measuring a worn machine, compare your measurements against the parts record rather than guessing from visible wear. • Measure pitch across several links, not just one worn section. • Count track links and sprocket teeth carefully. • Note whether you need track shoes, track chains, carrier rollers, bottom rollers, front idlers, sprockets/segments, rubber tracks, rubber pads, or track bolts and nuts. • Photos of the data plate, the undercarriage, and any existing part numbers can help confirm the match.
Common mistakes to avoid: ordering by machine model only, mixing parts from different serial ranges, and replacing a single worn item without checking the matching components around it. For example, a new chain on a worn sprocket or idler can shorten service life. If your machine is from an OEM brand such as Caterpillar, Komatsu, CASE, Hitachi, or Volvo, note that VANROCK is an independent manufacturer and is not affiliated with those OEMs.
Share the serial number, machine model, and any photos with VANROCK through an appointed dealer, and the dealer can help cross-reference the correct undercarriage parts. VANROCK supplies undercarriage components for 350+ machinery brands, with pricing quoted on request through its dealer network.
Answered by VANROCK specialists · Published 7/20/2026
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