Description

Yanmar B3, B3-1, B3-2 1998 Parts Catalog – OEM Factory Parts Breakdown

Ordering the wrong part for a Yanmar B3, B3-1, B3-2 crawler backhoe costs you time and money. I have been in the shop 28 years and watched guys install aftermarket parts that failed in 50 hours because nobody checked the actual part number. This Parts Catalog from 1998 is the last edition Yanmar published for the B3 series. It lists every bolt, hose, and seal with the factory number so you get the right piece the first time. No chasing down obsolete parts with a third-party drawing.

What This Parts Catalog Actually Contains

You get 158 pages of numbered parts breakdowns, not generic illustrations. The table of contents lists SPECIFICATIONS, TABLE OF PAINTED COLOR, VEHICLE PAINTED COLOR, PATRTS NAME (that’s Parts Name – typo in the original), and a WIRING DIAGRAM. Page 2 gives you the full machine specs: overall length 3750 mm, width 1470 mm, bucket capacity 0.07 m³, and operating weight 2900 kg. That data alone tells you whether your machine match the catalog before you order anything.

Wiring Diagram: The Section That Saves Your Electrical Work

Electrical trouble on a Yanmar backhoe without a factory diagram is a guessing game. This catalog includes a full Wiring diagram section. You trace the harness from the key switch to the solenoid without relying on aftermarket schematics that leave out the ground paths. I have seen too many fire incidents caused by wire swaps that the generic diagrams didn’t show. Use the original wiring map – it’s in this book.

3 Key Sections Beyond Parts Numbers

First, the SPECIFICATIONS chapter (page 2) covers the 3TN84L-RBA engine, travel speeds, climbing ability, and bucket reach. Second, the TABLE OF PAINTED COLOR (page 3) lists the Munsell color codes for Yanmar Cream White, New Light Yellow, Dark Olive II, Mint Green, New Deep Green, New Grayish Green, and Dark Olive Gray. If you are restoring a B3-2 to showroom condition, those codes matter. Third, the Painted Color section shows exactly which part gets which color – no more guessing between green and gray on the boom.

158 Pages of OEM Part Numbers – No Aftermarket Guessing

Every part number in this catalog was verified by Yanmar engineers. The preface warns: “Be careful not to use the simple parts available in the market; otherwise their use in repairing causes such as an early breakage.” That is straight from the factory. When I need a new final drive seal or a hydraulic relief valve for a B3-1, I open this catalog and pull the number off the exploded view. The Ammann Yanmar B12 B17 Parts Catalog covers a similar generation, but for the B3 series, this is the only source you need.

Is This the Right Manual for Your Machine?

Check your machine serial number. The catalog covers B3 from M/# 00501 to 02444 (July 1988 to April 1991), B3-1 from 10501 to 11766 (April 1991 to November 1992), and B3-2 from 20501 to 20901 (September 1993 to January 1996). The engine, 3TN84L-RBA, runs from serial 06642 to 51185 (July 1988 to January 1996). If your backhoe falls in those ranges, this catalog matches it. Outside those, you need a later edition.

How to Use This Catalog on the Workbench

Flip to the PATRTS NAME section (page range varies by model) and find your component group – engine, transmission, undercarriage, hydraulic system. Write down the part number from the exploded view, then cross-check with the painted color table if the part is painted. For example, the blade structure uses Yanmar Dark Olive Gray (code 72). That matters when you order a blade wear strip already painted. The Yanmar YB271, B27 1994 Parts Catalog – OEM Factory Specs and Yanmar YB301 YB351 1991 Parts Catalog – 248 Pages OEM are other Yanmar catalogs for larger models. For a broader look at construction machinery, see Automotive Industry Overview and also Automotive Industry Overview.

Does this parts catalog include repair procedures?

No. This is a parts identification document, not a service manual.

What machine serial numbers are covered?

The manual lists machine serial numbers for each model: B3 from 00501 to 02444 (July 1988 to April 1991), B3-1 from 10501 to 11766 (April 1991 to November 1992), and B3-2 from 20501 to 20901 (September 1993 to January 1996). The engine, 3TN84L-RBA, covers serial range 06642 to 51185 (July 1988 to January 1996). You must match your backhoe’s serial number to these ranges to order the correct parts. If your machine falls outside these ranges, this catalog may not apply. The specifications on page 2 and the paint color table on page 3 are key references. Using the wrong part can cause early breakage – the preface warns exactly about that.

Nothing beats that OEM paper. The aftermarket catalogs I see in shops miss revisions and leave out the paint codes. This 1998 Yanmar Parts Catalog gives you the last word on every part for the B3, B3-1, and B3-2. Access the Factory Manual.