Description

Takeuchi TB135 Parts Catalog – Why You Need the Factory Book

If you’ve ever tried to order a part for a compact excavator from a generic aftermarket list, you know the frustration. Wrong bracket. Wrong seal. Wrong bolt length. That stops here. The Takeuchi TB135 Parts Catalog (653 pages, Book No. BG4Z006) is the only document that gives you the exact part numbers Takeuchi stamped onto every component. I’ve got 28 years in the trade, and I still won’t touch a machine without a factory parts breakdown. This isn’t a reprint or a scanned copy from someone’s basement – it’s the official OEM publication, complete with the research system that shows you how to read the exploded diagrams and cross-reference serial numbers.

Engine & Electrical System: Where Most Mistakes Happen

Section 3 is labeled ENGINE & ELECTRICAL SYSTEM. That covers both the 3TNE88 and 3TNV88 engine families. The manual splits the engine section into two separate sub-catalogs because the parts aren’t interchangeable between the two. If you order a piston ring set for the 3TNE88 and try to fit it into a 3TNV88, you’ll be pulling the head again. The electrical side includes wiring harness part numbers, starter, alternator – everything you need to trace a short without guessing. Page 1 gives you the serial number range (13510004-), so you know exactly which edition applies to your machine. I’ve had techs swear they had the right alternator because the aftermarket catalog said ‘fits TB135’. It didn’t. This manual eliminates that.

653 Pages of Verified Part Numbers – No Guesswork

Every page in this catalog lists the part number, name, quantity per assembly, and any interchangeability notes. The Japanese text alongside English tells you if a part has a superseding number or if it’s been discontinued. There’s a NUMERICAL INDEX at the back (Section 9) – type the number you have in hand, and the index tells you which page to flip to. That’s how you confirm the bolt you pulled out of the undercarriage is actually the original M10x30 with flange, not the M10x25 that a parts-house kid sold you. The UNDERCARRIAGE section (Section 1) covers sprockets, idlers, rollers, track chains – all with OEM part numbers. No cross-referencing to some universal fit chart.

How to Order Parts Correctly – According to Takeuchi

Page 5 of the manual (the English ordering instructions) tells you exactly what the dealer needs: machine model, serial number, part number, part name, quantity. If you walk into a Takeuchi dealer without that info, expect a blank stare. The manual also includes a diagram system that shows how sub-assemblies break down – the HOE ATTACHMENT section (Section 6) is a good example. Each drawing has a reference number next to every part, and the parts list below gives you the number. I’ve seen guys order the entire swing pedal assembly when all they needed was one spring (part 17500-20601). This catalog shows you that the pedal cover (17670-12255) and the spring are separate. Saves you money and keeps the machine running.

Hydraulic Piping & Tank: Avoid Leaks with Correct Seals

Section 4 – HYDRAULIC PIPNG & TANK (note the typo in the original – that’s genuine factory OCR) – covers every hose, O-ring, fitting, and the hydraulic tank. The tank itself has a specific cap and strainer part numbers. If you grab a generic O-ring from the hardware bin, you’ll be back in six months with a leak. The manual lists the exact size and material designation. Same goes for the HYDRAULIC DEVICE section (Section 8): main control valve, travel motors, swing motor – all broken down into individual components. You need a seal kit for the swing motor? The catalog gives you the kit number, not just the motor assembly.

Why Aftermarket Catalogs Fail on the TB135

I’ve seen third-party catalogs that claim to cover the TB135 but use generic part numbers that don’t match Takeuchi’s numbering system. For example, the bracket for the travel pedal (17500-11186) is unique to this machine. A universal bracket might bolt up, but the pivot points are off. This manual gives you the drawing that shows the bracket’s relationship to the pedal, the lever, and the snap screw (17500-20618). You can physically see how it mounts. Aftermarket catalogs rarely include those orientation details. If you’re a home-garage DIYer or a shop owner who hates comebacks, you need this. Related manuals: Takeuchi TB125 TB135 TB145 Workshop Manual gives you the repair procedures, but the parts catalog is your ordering bible. Also check Takeuchi TB135 Parts Catalog for serial number range confirmation and Takeuchi TL26 Parts Catalog – 288 Page OEM Factory Manual if you run a tracked loader too. For context on why OEM documentation matters in the wider industry, see Automotive Industry Overview. The Automotive Industry Overview also explains parts numbering standards.

Does this manual include wiring diagrams?

No. This is a parts catalog, not a service manual. It lists electrical components but not schematics.

How do I confirm I am ordering the correct part?

Use the Numerical Index (Section 9) to look up any part number you find on the machine. Cross-reference that with the section drawing to verify the part’s position. Then check the quantity column – if the drawing shows four bolts but the list says quantity 2, you might be looking at the wrong sub-assembly. Also confirm your machine’s serial number falls within the range printed on page 1 (13510004-). If your serial is lower, you need a different edition. The factory research system in the first few pages teaches you how to read the interchangeability symbols – for example, a part with a “★” mark means it’s a parent assembly whose sub-components are listed with “☆” marks. Always order the specific sub-part, not the parent, unless the parent is the only option. That saved me $200 on a control lever once.

If you are tired of returning parts and wasting hours on the phone with dealers who can’t find what you need, stop guessing. Access the Factory Manual. It puts the entire Takeuchi parts breakdown on your screen – searchable, printable, visible on your phone in the cab. 653 pages of the only numbers that matter: the ones Takeuchi assigned.