Description

Takeuchi TB025 Parts Catalog – 458 Pages of Factory Part Numbers

I have been doing this 28 years. In that time I have watched guys order a track roller for a TB025, get the wrong one because they guessed from a blurry online photo, then spend an hour on the phone with the parts counter. You do not need that headache. You need the Takeuchi TB025 Parts Catalog – the exact same book Takeuchi dealers pull part numbers from. 458 pages, OEM exploded diagrams, and serial number splits down to the last digit. This is not a reprint of some third-party PDF where the numbers got scrambled. This is the original factory file from Takeuchi, Book No. PE3-102Z5, covering serial numbers 1255001 through 1258249. Takeuchi TB025 Parts Catalog

UNDERCARRIAGE: Exploded Views for Crawler Belt, Rollers, and Idlers

If you are replacing a carrier roller or adjusting the track tension, you need the part number for the exact flange style and bolt pattern. The und undercarriage section covers LOWER FRAME, CRAWLER BELT, CARRIER ROLLER, TRACK ROLLER, FRONT IDLER, TRACK ADJUSTER, TRAVEL DEVICE, DOZER BLADE, and PIPING; LOWER. Each group has an exploded diagram on the top half of the page, parts list on the bottom. Page 7 (reference index) shows where each assembly sits on the machine. You will not have to guess which idler fits your serial number range – the manual lists the change points.

Hydraulic Piping & Tank – OEM Part Numbers for Hoses and Valves

Hydraulic leaks kill downtime. When you need a replacement hose or a valve spool, you want the factory number, not a cross-reference that might be wrong. This catalog breaks down GREASE PIPING, VALVE & ACCESSORIES (link type and hydraulic type), PIPING; UPPER 1/2/3 (including auxiliary line), PUMP DRIVE, HYDRAULIC TANK, FUEL TANK, and FUEL PIPING. The diagrams show each O-ring, fitting, and bracket. If your machine has the auxiliary line option, the manual has a separate section for that piping. No confusion.

Does This Parts Catalog Cover the Engine and Electrical System?

It does. The ENGINE & ELECTRICAL SYSTEM section includes ENGINE & ACCESSORIES 1 and 2, CONTROL BOX, ENGINE CONTROL, and four electrical sub-sections (ELECTRICAL 1 through 4) with variants for cab, canopy, and Australia-spec machines. The 3TN84L-RTBZ engine gets its own dedicated section starting with cylinder block, gear housing, flywheel housing, cylinder head, manifolds, camshaft, crankshaft, oil system, cooling, thermostat, and fuel system. Each part number ties back to the exploded view. If you need a thermostat for that engine, the diagram and part number are right there.

Why Factory Takeuchi Documentation Beats Aftermarket Copies

I have seen aftermarket catalogs where the bolt length is wrong, or the diagram is reversed. The OEM manual uses the same numbering system as the dealer system. The HOW TO READS THE PARTS MANUAL section (pages 3-4) explains the symbology: item numbers correspond to exploded diagrams, part numbers are unique, and parts not sold separately have an “X” prefix. This manual also includes serial number splits for each variant – for example, ELECTRICAL 3 (cab) has three different versions depending on your machine serial number (1255001-1255720, 1255721-1257790, 1257791-). Aftermarket copies usually throw all numbers together. Not here.

Decal and Paint Color References – Get the Right Labels and Finishes

When you restore a TB025 or need new decals for safety compliance, this catalog has 20+ decal sections covering TCM, JOB-ACE, English, German, French, Italian, canopy, cab, EU, and telescopic arm variants. Also includes PAINTED COLOR references for TCM, Japan, and standard. You will find the correct part number for every decal and paint code. Takeuchi TL26 Parts Catalog – 288 Page OEM Factory Manual covers a similar compact excavator if you also work on TL26 models. Takeuchi TL150 Parts Catalog – 599-Page OEM Exploded Views is another solid reference for larger machines.

If you are a DIY owner fixing a track adjuster or a shop tech replacing a control valve, this catalog keeps you from ordering twice. The Hoe Attachment section alone breaks down HOE, TELESCOPIC ARM, five bucket variants (with serial number splits for U.S.A. spec), and piping for hoe, auxiliary line, and telescopic. You can find the bucket tooth part number by serial range. Automotive Industry Overview does not tell you that. Automotive Industry Overview is irrelevant – this is construction equipment, but the same principle of using OEM data applies.

One more thing – the PARTS INDEX at the back of the manual lists every part number in alphabetical order. You can look up a part by name, find the page number. The ENGINE 3TN84L-RTBZ index even breaks down into sub-assemblies like CYLINDER BLOCK, GEAR HOUSING, etc. This manual is 458 pages of pure, verified, factory Takeuchi data.

FAQ

Q: Does this manual include torque specs for the TB025?

A: No. This is a parts catalog, not a service repair manual. It contains exploded diagrams and part numbers, not assembly torque values. You need the separate service manual for torque specs.

Q: How do I find the correct part number if my serial number falls between two ranges listed in the catalog?

A: The manual lists serial number breaks for each section – for example, BUCKET 1 and BUCKET 2 cover 1255001-1255474, BUCKET 3 covers another range, BUCKET 4 covers 1255475- and BUCKET 5 is for U.S.A. spec. If your machine serial number is 1255470, you use the first bucket section. The same logic applies to electrical, decal, and sub-valve sections. Match your serial number to the range shown in the heading. The HOW TO READS section (page 3) gives examples showing how to interpret the columns. Take your machine serial number, look at the applicable section, and pick the part number listed under your range. If you see a column marked “Serial No.” with a range like 1255001~1255720, that is the group your machine falls into. If you are still unsure, contact your Takeuchi dealer with the serial number and the part number from this catalog – they will confirm.

You have a TB025 that needs a new idler, a control valve seal, or a decal set. You want the factory part number, not a guess. Access the Factory Manual from AutoRepairManuals and put it on your tablet or print the pages you need. 458 pages, OEM, serial number correct – no more returns.