Description

Caterpillar TA22-M4WD, T4W1-Up 2006 Parts Catalog

If you’re ordering parts for a Caterpillar TA22-M4WD transmission and you don’t have the factory parts catalog, you’re guessing. I’ve seen guys order the wrong planetary case because they used a reprinted parts list. This 67-page PDF from July 2006 is the official Caterpillar SEBP4912 document. It covers T4W1-Up transmissions. Every part number, every group, every page is straight from the factory. No reprints, no third-party renumbering.

Electrical and Starting System – What This Catalog Covers

Page 1 dives into the Electrical and starting system. You get the CONTROL GP-TRANSMISSION and SENSOR GP-PRESSURE groups. If you’re chasing a no-start on a TA22-M4WD, you need the exact part numbers for the pressure sensors and control harnesses. Aftermarket catalogs often lump sensors together; this one splits them by group and serial number range. That’s the difference between a running machine and a tow bill.

Transmission Group Parts – Power Train and Clutch Assemblies

The bulk of the catalog is the Transmission section starting page 5. You get CASE & PARTS GP-PLANETARY, CLUTCH GP-POWER TAKE-OFF, CLUTCH GP-TRANSMISSION, COVER GP-SHIPPING, COVER GP-TRANSMISSION, DRIVE GP-PUMP, GEAR GP-TRANSFER, TRANSMISSION AR, plus four valve groups: FLOW CONTROL, MODULATING, RELIEF, and YOKE GP. Each group lists every bolt, seal, and bearing with the OEM Caterpillar part number. When you open a TA22-M4WD, you can order every part in one pass without cross-referencing.

Source Authenticity: OEM vs Aftermarket Catalogs

I’ve been burned by aftermarket parts catalogs that renumber items and create phantom part numbers. This is a direct scan of the original Caterpillar document, published July 2006. The page numbers match exactly what Caterpillar issued. You get the same information a dealer counter guy pulls up on SIS. For context on how original equipment manufacturers verify their parts, read the Automotive Industry Overview. Compare this to other aftermarket sources, see Automotive Industry Overview. But honestly, once you’ve used a factory catalog, you won’t go back.

Who Should Own This Manual

If you maintain a fleet of agricultural equipment with TA22-M4WD transmissions, you need this. DIY owners who pull their own transmission should have it open on a tablet next to the parts washer. Even professional mechanics will save time by ordering the exact seal kit listed on page 17 for CLUTCH GP-TRANSMISSION instead of hoping the generic kit fits. Beginners: don’t start a rebuild without this catalog. You’ll end up with leftover parts and a transmission that won’t hold pressure.

Using the Part Number Index

Page B1 is the PART NUMBER INDEX. Need a specific bolt or valve? Look up the number, flip to the group page, and see the illustration. That’s how you avoid ordering a shipping cover when you need a transmission cover. The index covers every part in the 67 pages. Use it before you call the dealer.

Frequently Asked Questions

Is this the same as the service manual?

No. This is a parts catalog. It lists part numbers and groups, not repair procedures.

Can I use this to rebuild my TA22-M4WD transmission?

You’ll need a service manual for torque specs and clearances. But you need this catalog to order the correct parts. Without it, you’ll likely get the wrong clutch pack or bearing.

Will this work for transmissions after T4W1-Up?

It covers T4W1-Up serial numbers. If your transmission serial number starts with T4W1 or higher, this catalog applies. Check the product identification plate as described on page 3 of the manual.

How do I access the file after purchase?

You get a PDF link immediately after checkout. Save it to a device you keep in the shop.

Related Manuals: Caterpillar C15 2006 Parts Catalog – Factory OEM 884 Pages, Caterpillar Elevated Sprocket Tractors Parts Catalog – 971 Pages, Caterpillar Undercarriage Parts Catalog – 866 Pages OEM.

Stop guessing on part numbers. Get the factory document that Caterpillar engineers approve. Access the Factory Manual now and keep your TA22-M4WD transmission running with genuine parts.