Description

CASE IH JX 70U, MX 80C, 90C, 100C, MX 100 Parts Catalog

If you’ve ever spent an afternoon on hold with a dealer because the parts guy couldn’t read the worn-off tag on your CASE IH JX 70U, MX 80C, 90C, 100C, MX 100 Parts Catalog calls the same part three different names, you know the pain. I do. Twenty-eight years turning wrenches, and the worst downtime I’ve seen came from ordering the wrong clutch because someone guessed at a digit. This factory catalog fixes that. 569 pages of exploded views, part numbers, and ordering instructions—everything you need to get the exact piece the first time.

Ordering Instructions Straight from the Factory

The first thing you see in this catalog is how to order correctly. They lay it out in a grid: product group, clutch diameter, counting number, design variation. Example—clutch cover assembly: figure 1 = product group 1, figure 2+3 = diameter in mm, figure 4-7 = counting number, figure 8+9 = design variation. You get the year of manufacture, vehicle manufacturer (CASE IH), model series, and the article numbers for the cover assembly, disc, and release bearing. No guesswork. That’s how you avoid buying a 200-mm disc when your tractor needs a 180-mm one.

569 Pages of Factory Part Numbers

This isn’t a cut-down aftermarket reprint. 569 pages cover the JX 70U, MX 80C, 90C, 100C, and MX 100. Every page is scanned from the official CASE IH file, not some third-party compilation that misses a hyphen or inverts a digit. The front matter includes bilingual ordering guides in German, English, French, Spanish, and Italian—useful when the parts tag has multi-language abbreviations.

Clutch Assembly Breakdowns: What’s Inside

The OCR excerpt shows clutch groups: simple clutches, dual clutches, driven plates, service parts, release bearings, RepSets. Diameters listed in millimeters (180, 200, etc.) with counting numbers. For a JX 70U with a 310 KGS six-bolt PTO, you get the exact clutch cover assembly number and the corresponding disc. No “this might fit” — just the factory-specified part.

Does This Catalog Cover the MX 100 and JX 70U?

Yes. The title says JX 70U, MX 80C, 90C, 100C, and MX 100. But the catalog groups parts by product groups across the series. So if you have an MX 100C (not on the cover), you still find the right clutch because the ordering system uses the same coding. The coversheet includes the 231 0089 10 and 300 TSFA references—typical for these models. If your tractor falls into the 05.02 series (2007/2008), this catalog was designed for it.

Why OEM Beats Aftermarket Documentation

I’ve seen aftermarket catalogs that list a clutch for “JX 70U (with options)” and leave out the design variation suffix. That suffix changes the release bearing. The OEM catalog includes the full 8-9 digit part code plus the country-specific variants (AU, AR, MT, etc.). You can cross-reference with older parts because the catalog preserves the original CASE IH part numbers and supersession notes. For related manuals, see the CASE IH 7210, 7220 Parts Catalog – Factory Specs and the STEIGER 385 / 435 Radiator and Hoses Parts Catalog. Need transmission breakdowns? The CASE IH STX425 Tractor Pictorial Index Transmission gives the same level of detail.

Using the Catalog on the Bench

Lay it open next to the tractor. Find the clutch section. Look up your model’s engine code (e.g., 310 KGS). The catalog tells you the diameter, the number of splines, and the release bearing type. You can order the part without pulling the transmission first. That saves a full day. The automotive industry Automotive Industry Overview relies on this kind of precision to keep machines running. Even the basics of Internal Combustion Engine components are easier to source when you have the right numbers.

Is this a service manual or a parts catalog?

Parts catalog only. No torque specs, no step-by-step repairs. You get exploded diagrams and part numbers.

Can I use this to repair my tractor?

Not for repair procedures. It shows how parts go together and what to order. If you need to rebuild a clutch, you still need a service manual. But this catalog prevents ordering the wrong disc—which is half the battle.

What models are covered exactly?

JX 70U, MX 80C, MX 90C, MX 100C, and MX 100. Also covers variants with different PTO and clutch options listed in the ordering grid.

Will this help me cross-reference old part numbers?

Yes. The catalog uses the original CASE IH numbers and often includes the design variation code. If your old part has a stamped number like 310 UKF, you can look it up in the catalog and find the current replacement. The ordering system includes the year of manufacture and vehicle manufacturer fields, so you can verify fitment before you buy.

You know the drill—access the factory manual. Get the exact part numbers, avoid the parts-counter runaround, and keep that JX 70U or MX in the field where it belongs.