Description

Terex TX870B 2010 Parts Catalog – OEM Factory Manual

If you are wrenching on a Terex TX870B and ordering parts from memory or aftermarket online catalogs, you are burning money and time. I have seen it a hundred times: a guy orders a front axle housing based on a blurry photo, gets the wrong steer configuration, and the machine sits for a week. This Parts Catalog from Terex—published in 2010—is what the factory guy uses. It is 2241 pages of exploded diagrams and OEM part numbers. No reprints, no scanned aftermarket junk. This is the original PDF.

Engine and Chassis Sections – What You Actually Get

Open the table of contents and you will see exactly how Terex lays out the machine. The Engine is covered in two key sections: Engine Cover Yellow (page 16) and Engine Cover White (page 20). Each page shows the exact shape, bolt pattern, and part number for those covers. If your TX870B has a yellow or white engine cover, you get the correct P/N for your machine. The chassis section starts at page 12 with Centremount Short chassis parts. That means frame brackets, bushings, and hardware are listed with factory illustrations. You will not find a generic “fits all” part number here.

2241 Pages – Why Aftermarket Catalogs Fall Short

I have seen too many DIYers buy a reprint that shows a fuzzy line drawing with no callouts. This OEM catalog uses original factory drawings. Every bolt, hose, seal, and bracket has a numbered callout tied to a genuine Terex part number. Want to find the right front axle housing for your 2WD/2WS machine? Turn to page 26. That page shows the Housing 2 Wheel Drive/2 Wheel Steer with each casting number. Compare that to a third-party PDF that skips the housing and lists only generic bearings. Automotive Industry Overview explains why OEM documentation matters for safety—I only trust factory data for load-bearing parts like axles.

The catalog covers both 2WD and 4WD variants. Pages 32 through 62 handle Front Axle – Installation 4 Wheel Drive/2 Wheel Steer, each page a different revision or bracket. If you are retrofitting or repairing a 4WD TX870B, you need these specific sheets. Aftermarket catalogs often lump all four-wheel-drive axles into one picture. Terex splits them into 16 separate pages. That is the level of detail you pay for.

Front Axle Variations – 2WD vs 4WD, 2WS vs 4WS

Steering pivot parts for 2WD/2WS show up on page 28. The wheel hub assembly is on page 30. If your machine has 4WD but only 2-wheel steer, you follow the installation group starting at page 32. Each sub-variant (2WD/2WS, 4WD/2WS, 4WD/4WS) has its own exploded view. I have used this catalog to order a steering cylinder for a customer’s TX870B—the OEM number matched the label on the old cylinder. No returns, no downtime. Compare that to an aftermarket parts list that says “fits multiple models” and you get a wrong thread pitch.

Steering System and Wheel Assemblies

Steering System 2 Wheel Steer is covered on page 64. Front and rear wheels appear on pages 66 and 68. Those sections include wheel studs, nuts, and rim part numbers. If you are replacing a bent rim on a TX870B, you want the factory rim part number, not a universal rim that might not clear the brake caliper. The catalog gives you the exact dimensions and bolt circle. Automotive Industry Overview is a decent primer on standards, but for this machine, stick to Terex specs.

Who Needs This Catalog – From Fleet Managers to Home Mechanics

If you own a Terex TX870B and do your own repairs, this Parts Catalog is not optional. It is the reference you pull when the local dealer gives you a quote you do not trust. Cross-check the part number in the catalog, order online, save 40%. Fleet managers use it to stock the right filters, seals, and hoses before a breakdown. Home garage enthusiasts who maintain older Terex loaders will find the 2010 catalog covers all the parts that commonly wear—engine covers, axle housings, steering components. The catalog is a single PDF, searchable, and you can print only the pages you need for the job.

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Frequently Asked Questions

Is this the same as a service manual?

No. This is a parts catalog. It shows exploded views and part numbers, not repair procedures. You still need a service manual for disassembly steps and torque specs.

Does it include torque specs?

No. This catalog lists parts only. Torque values are in the factory service manual. Do not use a parts catalog to guess fastener tightness.

Can I view it on a tablet?

Yes. It is a PDF, works on any device that opens PDFs. Pages are high resolution – zoom in on part numbers.

How are part numbers organized?

Each exploded view has numbered balloons. Below the diagram, a table lists the part number, description, and quantity per machine. The table also indicates which variant (2WD, 4WD, etc.) gets each part.

Stop wasting money on wrong parts. If you maintain a Terex TX870B, this 2241-page OEM Parts Catalog is the only way to get the exact part numbers the factory uses. Access the Factory Manual now and keep your backhoe loader running with genuine Terex components.