Description

Takeuchi TB045 Parts Catalog

If you have ever torn down a compact excavator only to find the replacement part you ordered does not fit because you guessed at the serial number break, you know the pain. The Takeuchi TB045 Parts Catalog kills that guesswork cold. This is the same 247-page binder the dealer uses, not some aftermarket reprint that runs part numbers together. I have seen techs order the wrong carrier roller because they used a third-party parts site that listed one number for all years. That mistake costs you a day of downtime and a return shipping fee. The factory catalog breaks down every assembly by serial range, down to specific engine and chassis variants. You get the part number, the quantity, and a note if it supersedes something else. That is what you need on a Saturday afternoon when the machine is split open.

The Takeuchi TB045 is a compact excavator that shares components with several other Takeuchi models, but the undercarriage and hydraulic system have their own specific part numbers. If you are a home garage guy or a small shop owner, you cannot afford to play the return game. This catalog gives you exploded diagrams that show exactly how each bolt, seal, and line fits. Page 2 tells you to write your machine serial number and engine serial number in the spaces provided. Do it. That is step one any time you open the catalog.

Undercarriage: Crawler Belt, Track Roller, and Dozer Blade Part Numbers

The undercarriage section covers everything below the turntable. Crawler belt, wide belt, carrier roller, track roller, front idler, track adjuster, travel device, and dozer blade. Each assembly has its own exploded view with the item numbers matching the parts list below. If you need the track adjuster seal kit, you find it under TRACK ADJUSTER. The part number is listed with the quantity and any serial number applicability. You do not have to cross-reference three different websites. It is all in that one spread.

Turntable & Control Lever: Swing Pedal, Operation Lever, and Boom Swing Parts

This section covers the upper structure. The boom swing, travel levers, operation levers, and the dozer blade lever with accessory pedal. There is a separate subsection for the piping that runs to the operation levers, including Japanese market variants and ISO-JCB configurations. If you are replacing a sticky pedal assembly, the SWING PEDAL & SWITCHING LEVER page gives you the spring, the switch, and the bracket part numbers. You verify your serial number against the book number printed on page 1 (Book No. PK2-102Z5). That book number covers serial range 1455001-1456876. If your machine falls outside that range, the catalog still applies to earlier or later machines? The manual is specific to that serial range. Check your plate.

Engine & Electrical System: Control Box, Engine Control, and Wiring Variants

The engine section lists the 3TN100L-TBZ engine components broken into 18 groups, from cylinder block to starting motor. If you need the fuel injection pump or the gasket set (optional tools listed in group 18), you find them here. The electrical part includes several variants: standard, for Australia, for cab, for CNP (canopy). Each variant has its own exploded diagram. I have seen a guy wire a cab machine using a canopy diagram and fry the controller. Do not be that guy. The catalog labels each diagram clearly: ELECTRICAL 3 CAB appears multiple times because there are different cab options (ROPS & FOPS). Pay attention to the subtitle.

Hydraulic Device: Control Valves, Swivel Joint, and Cylinder Seals

Hydraulics are where the money lives. The catalog covers the swivel joint, control valve (9-block and 2-block versions), pilot valves, sub valves, solenoid valves, stop valves, shut-off valves, selector valves, and every cylinder: boom, arm, telescopic, bucket, dozer blade, swing. Each cylinder has its own seal kit part number. If you are rebuilding the boom cylinder on a cab machine versus a canopy machine, note that the cylinder listings show BOOM CYLINDER(CNP) and BOOM CYLINDER(CAB) separately. The part numbers differ. Page 3 explains how to read the item numbers and the quantity column. The column marked “Qty” is the quantity per assembly. Do not assume it means you need one unless the exploded view shows one piece.

Why a Factory Parts Catalog Beats Aftermarket

Aftermarket parts catalogs often compress multiple model years into one generic drawing. They omit the serial number breaks. The official Takeuchi catalog has a dedicated section for decals and paint colors, which is critical if you are doing a restoration or a warranty claim. The paint color section lists TCM for Japan, then separate entries for Japan and general export. If you spray the wrong shade of Takeuchi orange, it stands out. Also, the catalog includes a complete parts index at the back, so you can search by part number directly. I keep a printed copy in the shop because scrolling a PDF on a phone while holding a greasy bolt is a pain, but the PDF at least lets you search. If you also need the repair procedures and torque values, get the Takeuchi TB045 Workshop Manual alongside this catalog. There is also a Takeuchi TB045 1998 Workshop Manual if your machine is an earlier build, and the Takeuchi TB045 Operators Manual – Factory Safety & Operation Guide for daily safety and service intervals.

For broader context on how OEM documentation standards apply across the Automotive Industry Overview, note that compact excavator parts catalogs follow the same exploded-parts convention as automotive shops. The key difference is that Takeuchi uses its own numbering system. Understanding that system, as explained in the manual’s ‘How to read the parts manual’ pages, saves you from part number confusion. The Automotive Industry Overview touches on the importance of OEM data for repair reliability.

FAQ

Does this parts catalog include torque specifications?

No. This is a parts catalog, not a service manual. It lists part numbers, quantities, and exploded views. For torque values, get the workshop manual.

Can I use this catalog to order parts for a TB045 with a serial number outside the range 1455001-1456876?

The catalog is book number PK2-102Z5 and explicitly covers serial numbers 1455001-1456876. If your machine falls outside that range, some components may still be the same, but the catalog does not guarantee it. You should verify with the parts index or contact a Takeuchi dealer. The catalog does list multiple variants within that range (e.g., different cab types, canopy, Japanese market), so it covers a wide spread of configurations. But if your serial is significantly earlier or later, you risk ordering a non-superceding part. Write your serial in the space on page 2 and check each part’s serial number column before ordering. That step is the difference between a one-day job and a three-day wait.

You have a compact excavator that earns its keep, or you are bringing one back to life. Either way, you need the right parts the first time. Access the Factory Manual and keep it on your shop tablet or print the sections you need. It beats scrolling through fuzzy aftermarket screenshots.