Description

Takeuchi TB250 Parts Catalog – 579 Pages of OEM Factory Parts Breakdown

If you’ve ever wasted a Saturday because the aftermarket parts diagram showed the wrong hydraulic block for your Takeuchi TB250, you know the frustration. That’s why this document exists—the official Takeuchi TB250 Parts Catalog with 579 pages of factory-original exploded views, part numbers, and interchangeability codes. It covers machines from serial number 125000001 onward. The book number is BK7Z004-1, and it’s the same binder the dealer parts counter uses. No reprint. No third-party scanning artifacts. Just the raw OEM data.

For a broader look at how manufacturers structure parts documentation, read the Automotive Industry Overview [LINK_ID_EXT_1]. The conventions in this catalog follow the same standards described in that sector.

Serial Number Matching – Why It Matters

Every Takeuchi TB250 ship with a unique serial number plate. This catalog flags part applicability by serial number range—some parts fit only early machines, others later builds. The front pages explain how to read the serial number break, and the tables show which part numbers apply above or below a certain cut. If you order a hydraulic seal kit without checking your machine’s serial, you’re rolling the dice on fitment. With the factory catalog, you cross-reference the serial column and get the exact part.

579 Pages: What You Actually Get

The bulk of this 579-page document is exploded-view illustrations for every major assembly on the TB250: travel lever and swing pedal, hydraulic pumps, final drives, control valves, engine components, and the undercarriage. Each illustration links to a part number table with quantities, compatibility notes, and supersession info. The catalog is bilingual (English and Japanese) with French and German support for the ordering paperwork. You get the same information whether you’re in Texas or Tokyo.

As noted in the Automotive Industry Overview Automotive Industry Overview, OEM documentation is the gold standard for clarity. This catalog proves it: each section separates the illustration from the parts list, so you never mistake a bolt for a bearing.

Interchangeability Codes: Reading the (u) and (L) Symbols

The catalog uses a system of capital and lowercase letters to show interchangeability. A part with a (u) mark can replace any earlier part with the same uppercase letter; a (L) mark means it can replace parts with the same lowercase letter. This matters when a manufacturer updates a component but keeps the old part compatible. Ignoring these codes leads to ordering a part that won’t interchange with what you have. The manual’s how-to section (pages 0-1) explains this in detail, with examples drawn from the actual assemblies.

Ordering Parts with Confidence

When you call the dealer, they need five things: machine model, serial number, part number, part name, quantity. The catalog lays this out in a table on the first few pages. Every exploded view has a part number column, so you can read the number straight from the page. No squinting at faded online photos. The catalog also includes a note about parts not sold individually (marked with an “X” at the end of the part number). That saves you from ordering a subassembly you don’t need.

Aftermarket Catalogs vs. Factory Documentation

I’ve seen aftermarket parts books that skip whole assemblies or list wrong quantities for the TB250. They might show a generic travel pedal assembly that matches nothing on the actual machine. This factory catalog is the only source with verified part numbers, correct exploded views, and accurate interchange codes. If you’re running a shop that bills by the hour, guesswork on parts costs you money. The 579 pages here eliminate that.

Does this parts catalog include repair procedures or torque specs?

No. This is strictly a parts catalog—exploded views, part numbers, and ordering information. For service procedures, use the Takeuchi TB250 Workshop Manual.

How do I interpret the interchangeability codes like (u) and (L) in the catalog?

Each part in the illustration has a code: a capital or lowercase letter in parentheses. A capital letter means that part can be replaced by any other part sharing the same uppercase letter, regardless of the specific original part number. A lowercase letter works the same way but only within the same lowercase group. For example, if you have a hydraulic fitting marked (u) and the new part also has (u), they interchange. If the new part has (L) but your old part has (u), they do not interchange—you need the exact superseded part number. The manual’s compatibility table (page 0-1) lists all exceptions. This system prevents ordering a seal that looks identical but seals at a different pressure.

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Access the Factory Manual and stop guessing. When your parts counter asks for the serial number, you’ll have the book ready.