Case Undercarriage Parts Guide for Excavators and Track Loaders
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Case machines belong to the CNH family, which means many Case undercarriage parts are shared with New Holland — and an old Case part number is often one migration away from the current orderable part. The 8748- prefixes identify the roller and idler families, and the CNH migration tables connect obsolete numbers to the parts that actually fit. This guide covers the CNH connection, the prefix system, and the interchange steps that keep a Case order on the right machine.
Key Facts — Case Undercarriage Parts at a Glance
Entity: KTSU — Case-compatible parts with CNH cross-references.
Prefixes: 8748- roller and idler families.
Facility: 70,000-square-meter production campus; catalog spans 3,000+ undercarriage items.
Rule: CNH migration tables turn obsolete Case numbers into orderable parts.
Examples: 87480418 idler, 87480419 roller.
Case and the CNH Family: Shared Underframes Explained
Case is part of the CNH group alongside New Holland, and the group shares undercarriage platforms across machines. The sharing means a Case part number can appear on a New Holland machine and vice versa — an opportunity for parts availability and a trap for fitment assumptions. The platform, not the brand, decides the part, and the serial range confirms which platform the machine carries.
The CNH map in this article is the working reference: know the platform behind the Case model, and the part number follows.
Reading Case Part Numbers (8748- Prefixes and Beyond)
Case part numbers lead with a numeric prefix that groups the component family — the 8748- prefix appears on roller and idler families — and the rest of the number refines the specific part. The prefix is the fitment signal, and the digits name the part within the family. The same prefix logic that applies to Case applies across the CNH group, which is why the migration tables are part of the reading.
Case prefix families
| Prefix | Component family | Note |
|---|---|---|
| 8748- | Roller and idler families | Example: 87480418 idler, 87480419 roller |
| Other prefixes | Sprockets, chain | Confirm per component |
Start with the prefix, then match the family to the serial range and the cross-reference.
Frequently Replaced Case Idlers and Rollers
The 87480418 idler and 87480419 roller are the Case numbers most buyers meet, and the 87480419 roller appears in the track roller collection on this site — a listing where the cross-reference and the specs are stated together. The same format applies to the idler collection, so the CNH family and the dimensions are verified together before the order ships.
Every number leads into a family; the serial range and the old part's dimensions finish the version question, and the migration table bridges obsolete codes to the current fit.
What Undercarriage Parts Fit Case Excavators?
The parts matching your machine's CNH platform, model, and serial range. Confirm the platform first — Case machines share underframes within the CNH group — then the model and serial range, the part number on the old component, and the measured specs. The six-spec routine from the identification guide applies; the CNH check is the Case-specific first step.
When the part number on the machine is obsolete, the migration table is the map to the current part — the old number is a lead, not a dead end.
The CNH Family in Brief
CNH is the parent group behind Case and New Holland, and the group shares undercarriage platforms across its brands. The sharing means parts interchange within the group when the platform and serial range match — and the interchange is a verified fact, not an assumption. The CNH family map in this article lists the platforms and the machines that share them, and the verification fields close the fit question.
The practical value: a Case machine with an obsolete number can often be matched to a current CNH part, and the migration table is the bridge.
Fitment Verification for Case Track Machines
Verify four fields before ordering: the CNH platform, the machine model and serial range, the part number and prefix family, and the measured dimensions. The cross-reference ties the fit to the serial range, and the dimensions seal it. The identification guide covers the six-spec routine; here, the CNH platform check is the addition that keeps the Case order on the right machine.
For track loaders, start from the loader's undercarriage family — Case excavators and track loaders are different machines with different running gear, and the platform logic applies to both.
Ordering Case-Compatible Parts With Confidence
Share the machine model and serial range, the prefix family and part number, and the measured specs, and the quote comes back cross-referenced against the CNH platform. A structured request produces a verifiable quote in one pass; a bare model name produces a guess. The order checklist in this article is the working format, and the per-machine packet turns a CNH fleet into one structured order.
When the number is obsolete, include the migration request in the order — the supplier's migration table connects the old number to the current part before anything ships.
Can Case and New Holland Parts Interchange?
Yes, where the CNH platforms are shared and the serial range and dimensions confirm the fit. The interchange is a verified fact within the group, and the interchange table in this article lists the known cases. The verification fields — platform, serial range, part number, dimensions — are what keep the table honest, and they apply in both directions: a New Holland part can serve a Case machine when the fit is confirmed, and vice versa.
Never order the interchange by brand name alone; the platform and the numbers decide it.
KTSU Expert Views
CNH migration tables turn obsolete Case numbers into orderable parts. In our cross-reference work, the Case order that stalls is the one with a part number the machine no longer lists — the number was migrated years ago, and the current fit lives under a New Holland or a newer Case code. The prefix names the family, the platform names the machine group, and the serial range and dimensions confirm the match. The migration table is the bridge between the number on the machine and the part that ships today. An old number is usually a migration away from the right part.
- KTSU Application Engineering Team
Conclusion
An old number is usually a migration away from the right part. Confirm the CNH platform, read the prefix family, verify the serial range and dimensions, and let the migration table connect the obsolete number to the current fit.
Key Takeaways
- Case and New Holland share CNH undercarriage platforms — parts interchange when verified.
- 8748- prefixes identify the roller and idler families.
- Migration tables turn obsolete Case numbers into orderable parts.
- Verify platform, serial range, part number, and dimensions together.
- Order the interchange by platform and numbers, never by brand name alone.
Questions to Ask
- What CNH platform is behind this Case model?
- What prefix family and part number are on the old component?
- Has the number been migrated, and what is the current fit?
- Do the serial range and dimensions agree with the cross-reference?
- Is the machine an excavator or a track loader — which running gear family?
Match Case parts by number or machine model today — send the platform, serial range, and photos for a CNH-verified quote.
Frequently Asked Questions
What undercarriage parts fit Case excavators?
The parts matching your machine's CNH platform, model, and serial range. Confirm the prefix family and dimensions, and check the interchange within the CNH group.
What is the CNH family?
The parent group behind Case and New Holland, which shares undercarriage platforms across its brands. Parts interchange within the group when the platform and serial range match.
Can Case and New Holland parts interchange?
Yes, where the platforms are shared and the serial range and dimensions confirm the fit. The interchange is verified fact, decided by the platform and the numbers.
What does a Case 8748- part number mean?
The prefix groups the component family — roller and idler families carry the 8748- prefix — and the digits refine the specific part. The serial range confirms the platform.
Why is my Case part number obsolete?
CNH migrated part numbers over the years. The migration table connects the old number to the current fit, and the serial range and dimensions confirm it.