Takeuchi TB015 Parts Catalog – Factory OEM Part Numbers & Exploded Views

Nothing grinds my gears faster than a customer who ordered the wrong part because they trusted a third-party parts diagram. Half the time the illustrations are blurry, the part numbers don’t match, and you end up with a box of hardware that belongs on a different machine. The Takeuchi TB015 Parts Catalog eliminates that guesswork. This is a 255-page factory document – the same binder the dealer techs flip through when they quote you a part. It covers serial numbers 1153001–1158122, and it breaks down every subsystem on the TB015 mini excavator down to the last washer and seal.

Engine Section (3TNA72L-UTBZ): Over 200 Part Listings

The engine section alone is worth the price of admission. Takeuchi used the 3TNA72L-UTBZ diesel on these machines – a three-cylinder workhorse that you will eventually need to rebuild or replace seals on. The catalog lists every part number for the cylinder head, pistons, injection pump, and gaskets. No reprints, no aftermarket re-draws. You get the original Takeuchi part numbers, quantities per assembly, and serial number stampings where mid-year changes happened. Need a part for a machine built after the 1154030 serial break? The catalog flags it in the remarks column so you don’t order the wrong revision.

Lower Frame Assembly: Page 1-3 Breakdown

Flip to page 1-3 and you will find the complete lower frame exploded view. That page lists 38 individual components – frame halves, bolts, washers, the swivel joint, spanner cylinder, and slide guides. The table includes item numbers, part numbers, descriptions, quantities, and serial number application. For example, bolt 1100041020 changes from quantity 14 to 10 after serial 1154030. You cannot get that detail from a generic parts website. If you are rebuilding the undercarriage, this catalog saves you from ordering four extra bolts you do not need.

Hydraulic System Parts: Lines, Tank, and Control Valves

The TB015 uses a hydraulic system that shares components with larger Takeuchi models, but the piping layout is unique. The catalog includes a dedicated section for hydraulic piping and tank (section 4 in the index), plus a separate section for hydraulic devices (section 8). Part numbers for hoses, fittings, relief valves, and the control valve spools are listed with exact routing callouts. If you are replacing a blown hose, having the factory part number eliminates the risk of getting a hose that is two inches too short or has the wrong end fittings. Pair this catalog with the Takeuchi TB015 Workshop Manual – Section: Iv. Hydraulic Units for troubleshooting deadhead pressures and seal replacement procedures.

Reading the Parts Catalog: Serial Number Cross-Reference

Every page in this catalog references the machine serial number range – most callouts fall under serial 1153001–1154030 or 1154031–1158122. The index at the front of the manual (page 3) lists seven major groups: Undercarriage, Turntable & Control Lever, Engine & Electrical System, Hydraulic Piping & Tank, Cover & Cab, Hoe Attachment, and Decal & Tool. If you are working on the hoe attachment, you will find the bucket linkage pins, cylinder clevises, and even the decal kit part numbers. Do not waste time scrolling through pixelated online diagrams. This catalog gives you a table you can read under a work light.

Why OEM Documentation Matters Over Aftermarket Reprints

Aftermarket parts catalogs are a gamble. I have seen reprints missing the serial number breaks entirely, or merging parts from different model years into one drawing. The Takeuchi TB015 Parts Catalog is a direct scan of the original Takeuchi publication – no redrawing, no compression artifacts that make part numbers illegible. Page 2 shows the lower frame with all 38 callouts. Compare that to a third-party site where you might get a blurry JPEG of page 2 with a staple shadow across the bolt table. If you value your time and your wallet, you stick with factory source data. For context on why OEM documentation is the standard in heavy equipment, read the Automotive Industry Overview on quality assurance systems. The conclusion is the same: you cannot fix what you cannot identify.

Section Cross-References: When to Use the Workshop Manual

A parts catalog tells you what to order. A service manual tells you how to install it. If you are digging into the TB015, keep the Takeuchi TB015 Workshop Manual – Section: V. Troubleshooting nearby for diagnostic flowcharts on the engine and hydraulics. For torque values on frame bolts and cylinder gland nuts, refer to the workshop manual’s specs. The parts catalog does not include torque data – that is not its job. But having the correct Takeuchi part number before you start the job means you do not have to stop mid-repair to source a missing fastener. And if you need a second copy of the parts catalog for your shop tablet, the Takeuchi TB015 Parts Catalog link takes you back to this page.

Q1: Does this catalog include torque specs for the engine head bolts?

No. This is a parts catalog – it lists every factory part number, quantity, and serial range. Torque specs are in the workshop manual. The workshop manual section on engine overhaul (Section: V. Troubleshooting) contains the exact values.

Q2: How do I know if my TB015 is covered by this catalog?

Check the serial number plate on the lower frame. If the number falls between 1153001 and 1158122, you are covered. The catalog has specific callouts for both the 1153001–1154030 and the later 1154031–1158122 ranges.

Q3: Can I use this catalog to order parts from a Takeuchi dealer?

Yes. The part numbers printed here are the same ones the dealer system uses. Bring the part number from this catalog and the dealer will order exactly what you need. The 255 pages include the factory index and all illustrations.

Q4: The catalog lists a part number starting with “X **********” – what does that mean?

That is a redacted placeholder in the sample scan. The actual full part numbers are printed in the original document. The image on our site shows the redacted line for copyright protection, but the product you download contains the complete, unredacted part numbers. You will have the full 11-digit Takeuchi code for every component.

Stop chasing parts through forums and blurry reprints. The factory documentation is the only way to guarantee you get the right Takeuchi part for your TB015 mini excavator. Download the Factory Manual and keep it on your tablet or print the sections you need. Every fastener, every seal, every decal – all cross-referenced by serial number. That is the difference between a job that gets done and one that waits another week for a return shipment.