Description

Yanmar B08 2002 Parts Catalog

Ever spent two weeks waiting for a part that didn’t fit because the number you ordered was for a different revision? I’ve seen it. On a Yanmar B08 backhoe, one wrong digit on a part number means the hydraulic line doesn’t reach. This 2002 Yanmar B08 Parts Catalog – 145 pages – is the end of that guessing game. It’s the final revised edition (last edition, catalog no. 000Y00K2693) from Yanmar themselves. No aftermarket reprints, no scanned blurry copies. This is what the dealer uses.

What This Yanmar B08 Parts Catalog Actually Contains

145 pages of exploded diagrams and part numbers. Each illustration shows how the components fit together. You get the part number, description, and quantity. The catalog breaks down into two main sections: Vehicle (Section I) and Engine (Section II). In the Vehicle section, you’ll find columns for four model variants: B08 G (Green), B08 Y (Yellow), B08 EX (Export), and B08 AY (Europe). Each column lists the machine serial number range and production date. That matters because a part for a 1991 B08 G might not cross to a 1995 B08 EX. The catalog lists exactly which parts apply to which serial range. On page 2, you get the full specification table: engine model 3TN66L-UB, overall length 2820 mm, bucket capacity 0.022 m³, max digging depth 1550 mm, machine weight 780 kg (fixed leg) or 890 kg (variable leg). Those numbers are critical when ordering undercarriage or hydraulic components.

Why You Need OEM Part Numbers – Not Aftermarket Guesses

Aftermarket parts catalogs copy from each other, often with errors. I’ve seen a $300 hydraulic pump sold as the ‘right’ part for a B08 that was actually for a B12 – different displacement, different mount. This catalog gives you the OEM Yanmar number. Period. Cross-reference it with genuine Yanmar stock or order directly. The preface explicitly warns: use Yanmar genuine parts, because aftermarket lookalikes cause early breakage. That’s not a sales pitch – I’ve rebuilt too many machines that ate cheap seals.

Use the serial number. That’s your only reliable filter.

The Engine Section: 3TN66L-UB Breakdown

The engine section (Section II) covers the 3TN66L-UB diesel – a vertical, water-cooled 3-cylinder. The catalog lists complete engine parts, from the cylinder head to the fuel injection pump. If you’re overhauling the engine, you need the correct piston ring set for the 3TN66L-UB, not the 3TN66A. Two different compression ratios. The catalog shows the exact part numbers for each variant. No guesswork. Pair this with the service manual – but for parts identification, this is the only source.

Is This a Repair Manual? Read the Fine Print

Straight from the front page: ‘This parts catalog is not a technical data manual setting forth servicing procedures.’ If you need torque specs, adjustment values, or step-by-step removal instructions, you want the Yanmar B08 Service Manual, not this parts catalog. But if you need the correct part number for a control valve spool or a track roller, this is the only source. Many shops buy both. For larger machines, check the Ammann Yanmar B12 B17 Parts Catalog – it covers the next model up with different undercarriage. If you need older B27 series, the Yanmar YB271, B27 1994 Parts Catalog – OEM Factory Specs is available. For the YB301/YB351 chassis, the Yanmar YB301 YB351 1991 Parts Catalog – 248 Pages OEM is a thicker manual.

Model Variations: B08 G, Y, EX, AY – Get the Right Diagram

The catalog uses four columns (A through D) for different market versions. Column A is domestic Japan Green, column B is Yellow, column C is Export (excluding Europe), column D is Europe. If you’re in North America, you’re likely looking at column C (EXPORT) or possibly column D if imported from Europe. Each section gives the machine serial numbers for each variant. Always check the serial number tag on your machine before ordering. The catalog for the 2002 last edition covers 20 model types across those columns. Understanding how OEM catalogs fit into the larger Automotive Industry Overview helps you appreciate the importance of original documentation. When you study the Automotive Industry Overview, you’ll see why OEM part numbers are the only reliable source.

FAQ

Does this parts catalog include hydraulic hose part numbers?

Yes – hoses are shown in the hydraulic system section with part numbers.

Can I use this catalog to order parts from a Yanmar dealer?

Absolutely – Yanmar dealers use the same catalog to look up parts. The catalog includes the OEM part numbers, which are the only numbers the dealer recognizes. However, you must verify your machine’s serial number and model code (B08 G, Y, EX, or AY) because some parts differ between variants. For example, the bucket arm seal kit part number for a B08 EX with M/# 02660~ is different from a B08 G with M/# 00501~. The catalog’s specification table on page 2 also gives you the machine dimensions and weight, which help confirm you’re looking at the right version. If your dealer balks at a non-North American model, having the exact OEM number plus the published history (this is the last edition, 2002) gives you leverage to prove the part is correct. I’ve done it myself.

If you work on a Yanmar B08 and you’re tired of returning wrong parts, access the factory manual – the 2002 Parts Catalog – and get back to wrenching.