Description

Yanmar YB201 1991 Parts Catalog – The Only Parts Reference You Should Trust

If you’re paying a dealer markup on a cylinder seal kit or guessing which bushing fits the boom arm because some third-party website printed a blurry sketch, you’re wasting money and time. I’ve watched too many techs order the wrong track roller because they trusted a reprint that swapped the figure numbers. The Yanmar YB201 1991 Parts Catalog is the factory-issued document that eliminates that guesswork. 210 pages of OEM part numbers, paint codes, and exploded views – straight from Yanmar’s engineering team in October 1991. Nothing else gets you the exact figure reference for the boom assembly or the correct spray paint code for the canopy.

Parts Breakdown and Figure References – Every Assembly, Every Bolt

This catalog breaks the YB201 down by assembly. Each major group has a figure number that maps directly to the parts list. For example, the truck shoe and lower frame are in Figure 1. The bucket cylinder? Figure 73. The hydraulic piping for the boom and arm? Figure 53 on the YB201, Figure 54 on the YB201U. If you’re tearing down a swing cylinder, turn to Figure 75. The catalog lists every part in that figure with a unique part number. No more flipping through generic diagrams that skip the little shims. You get the exact part number Yanmar stamped on the box.

Paint Codes and Color Changes – Why It Matters for Restorations

Page 1 of the catalog documents every paint revision from 1985 to 1989. If your YB201 was built before October 1987, the original color was Yanmar Cream (Munsell 2.5Y9/1, paint code 933110-91803). After that, they switched to Cream White (5.0Y9/1, code 981101-09614). The Dark Olive changed from Dark Olievel (5GY1/1) to Dark Olievel II (7.5GY1/1) in 1987, then to Charcoal Gray (N2) in 1989. New Light Yellow (10YR6.5/8) stayed the same throughout. If you’re repainting the canopy or bonnet, the spray can part numbers are listed – 977620-30381 for Saffron Yellow, 977620-30371 for Charcoal Gray. The catalog even tells you the 16-liter can codes. That level of detail is why you want the factory version, not a photocopy.

Engine and Serial Number Identification – Match Your Machine

This edition (Issue No. 000Y00K2032) covers YB201 and YB201U models starting from engine number 00503. The mounted engine is the Yanmar 3T75H-LTBS (171067N). That means every part listed in this catalog was designed to fit that specific engine and chassis combo. If you’ve got an older YB201 with an earlier serial number, you’ll need to cross-reference with the 1st or 2nd edition – the catalog tells you to disuse the old editions. But for machines built after 1985, this is the current reference. Keep a copy in the shop binder next to your Automotive Industry Overview if you want to understand where these parts came from. The traceability matters when you’re sourcing hydraulic fittings that could blow at 3000 PSI.

Audience Fit: Who Needs This Parts Catalog

Home garage mechanics rebuilding a YB201 track loader need this catalog to order the correct bushings, seals, and hydraulic hoses without pulling the whole machine apart just to read a part number. Shop owners who fix compact excavators and mini loaders will save billable hours by having the figure references on the bench – no more “is this the left or right control lever?” The catalog distinguishes control levers for operation (left and right) with separate figure numbers (Figures 15-18). Even the blade control lever has its own figure (21 or 22). That’s the kind of specificity that keeps a job moving.

Source Validity: Why Factory Parts Catalogs Beat Aftermarket

Aftermarket parts lists often merge multiple model years into one chart, leaving you with a part number that might be close but not exact. This catalog was printed by Yanmar in October 1991, bound with the original Japanese and English parts names. The preface states it’s the 3rd Edition (Issue No. 000Y00K2032), superseding the 1985 and 1986 editions. Every page number and figure reference aligns with the actual Yanmar assembly drawings. If you’ve ever tried to match a hydraulic hose using a generic catalog, you know the frustration of getting a 90-degree fitting when you need a straight one. This catalog eliminates that. For more Yanmar parts references, check the Ammann Yanmar B12 B17 Parts Catalog or the Yanmar YB271, B27 1994 Parts Catalog – OEM Factory Specs for newer models. The Yanmar YB301 YB351 1991 Parts Catalog – 248 Pages OEM is also a solid companion if you work on the larger frame.

3 Things You Can Do with 210 Pages of Factory Data

One: Identify the correct paint code for your machine’s year. Two: Order the exact track roller by referencing Figure 2. Three: Replace a bonnet seal without guessing the part number. The catalog also includes English translations for every Japanese part name – you’ll see “CANOPY FIG.45” and “BONNET RELATION” side by side. That bilinguality is a lifesaver when you’re reading a faded label on the machine. Automotive Industry Overview might give you the big picture, but this catalog gives you the part number.

FAQ – Yanmar YB201 1991 Parts Catalog

Does this catalog include torque specs?

No. This is a parts catalog, not a service manual. It lists part numbers, paint codes, and assembly figure references. You’ll need the Yanmar YB201 service manual for torque values.

Will this catalog work for the YB201U model?

Yes. The preface states this edition covers both YB201 and YB201U. The parts name pages (pages 2 and 3 in the OCR) list separate figure numbers for the U version – for example, Figure 18 for control levers on the U versus Figure 15 on the standard model.

My machine has a serial number before 00503. Can I still use this?

This edition is listed up from engine number 00503. For earlier machines, you need the 1st or 2nd edition (1985 or 1986). However, many parts are interchangeable. Compare the figure references – if your part matches the shape in the diagram, the part number should be correct. When in doubt, remove the old part and match it visually.

How do I read the paint code table?

Go to page 1. The table lists the old color (pre-1987) and new colors (1987 and 1989 revisions) with Munsell numbers, 16-liter can codes, and spray can codes. For example, New Light Yellow for all years is 10YR6.5/8 with can code 933110-91602. If you need a spray can, code 981101-06041. Match the year of your machine to the revision column to get the correct shade.

You’ve got a YB201 that needs a track rebuild or a boom cylinder reseal. Without the factory parts catalog, you’re rolling dice on every bushing and seal. 210 pages of OEM data, organized by figure, with paint codes that match the year your machine left the factory. Stop wasting hours cross-referencing blurry online parts lists. Access the Factory Manual now and keep it on your tablet or print the figures you need.