Description

Yanmar B27-P, B27-CR Parts Catalog – OEM Factory Specs

You pull a part off a B27 backhoe, and the number is worn off. You check three websites, get three different answers, and order the wrong seal. That’s a wasted afternoon. This Yanmar B27-P, B27-CR Parts Catalog stops that nonsense. It’s the official Yanmar parts catalog – not a reprint, not a third-party compilation. It’s the same binder they handed to dealers in 1991. 141 pages of part numbers, illustrations, and wiring diagrams. If you’re rebuilding or stocking spares for a B27-P or B27-CR, this is the only reference you need.

What the Specifications Chapter Tells You

The Specifications section on page 3 gives you the machine’s dimensions, engine type (3TN84L-RBS), bucket capacity, digging depths, travel speeds, ground pressure – all the numbers you need to match replacement parts. For example, the standard bucket width is 450 mm (outside), and the machine mass is 2700 kg for the B27-P, 2820 kg for the B27-CR. You get both Imperial and metric where it matters. This isn’t a summary from a parts house website – it’s the factory spec sheet.

Parts Name Breakdown: Navigating the Figures

The catalog uses a country-code system to tell you which figure applies to your machine. UK (United Kingdom), AY (Ammann), EP (All Europe). Example: figure numbers vary by model. If you have an Ammann-spec B27-CR, you need Fig. 19. If it’s a UK model, it’s Fig. 18. The preface explains this clearly. You won’t accidentally order parts for the wrong regional variant. The Parts Name section (各部の名称) lists components like the radiator (Fig. 6), tool box (Fig. 7), heater (Fig. 8), engine mount (Fig. 10), instrument panel (Fig. 31), and more. Every exploded view is indexed by figure number. You can find the exact bolt, hose, or bracket without guessing.

Wiring Diagram: Why It’s in a Parts Catalog

Most parts catalogs skip the electrical system. This one includes a full Wiring Diagram section. Why? Because when you need a wire harness or a connector, you need to see the routing and the pin assignments. The manual covers the entire electrical layout for the B27-P and B27-CR. If you’re chasing a short in the starter circuit or replacing a faulty sensor, this diagram tells you which part number to order. You don’t need a separate service manual for electrical parts – it’s all here.

3 Sections That Define This Parts Catalog

First, the Specifications page – it’s not a table of random numbers; it lists the exact machine weight, travel speed, digging force, and ground pressure. Second, the Parts Name section with figure references – each figure corresponds to a specific system (radiator, engine mount, heater, etc.). Third, the Wiring Diagram – as mentioned, that’s rare for a parts catalog and saves you from buying a second document. Combined, these three sections cover everything from the engine block to the fuse box. The catalog is 141 pages, but every page is dense with data.

OEM vs Aftermarket: Why This Catalog Wins

I’ve seen aftermarket parts catalogs that list generic numbers – they might fit but they’re not the Yanmar spec. This is a factory reproduction of the original Yanmar document, released in Europe for the B27 (Ammann) and B27 (England/Australia) variants. The issue numbers are 000Y00S2890 and 000Y00S3030. If you’ve used a third-party list and ended up with a wrong starter or incorrect seal, you know the pain. This catalog eliminates that. You get the part number that Yanmar stamped on the original crate. No translations, no renumbering. Compare it to the Ammann Yanmar B12 B17 Parts Catalog or the Yanmar YB271, B27 1994 Parts Catalog – OEM Factory Specs – they all follow the same factory structure. For a broader view, the Yanmar YB301 YB351 1991 Parts Catalog – 248 Pages OEM covers the larger backhoe family. But for the B27-P and B27-CR, this is the specific tool.

Who Should Buy This Manual?

Home garage enthusiasts who maintain their own backhoe. Small equipment rental outfits. Salvage yards that need to identify parts quickly. If you own a B27-P or B27-CR and you’re tired of guessing part numbers, this catalog pays for itself the first time you order the right seal. There’s no repair procedures here – this is strictly a parts catalog. But without it, you’re ordering blind. The Automotive Industry Overview might talk about general standards, but this catalog is specific to Yanmar. For more context, check Automotive Industry Overview.

Frequently Asked Questions

Does this catalog include repair procedures?

No. This is a parts catalog – it lists part numbers, specifications, and wiring diagrams. It does not contain step-by-step overhaul instructions.

Will this work for the B27-P and B27-CR?

Yes. The catalog covers both models, with figures and part numbers for each variant.

What about the wiring diagram – is it complete?

The Wiring Diagram section shows the entire electrical system layout for the B27-P and B27-CR. Harness routing, connector pinouts, and component locations are included. It’s drawn to Yanmar factory standards, not a simplified schematic. You get the same diagram that the factory technician used when building the machine. That means you can trace a circuit from the battery to the load without guessing wire colors. If you need a specific connector or a pigtail, the figure reference tells you which part to order. This alone can save you an entire day of diagnostic work.

Is this a digital access or a physical book?

Digital access in PDF format. Searchable, printable, and readable on any device. Page count: 141.

If you’re working on a Yanmar B27-P or B27-CR and you need the correct part numbers, don’t waste time with generic lists. Access the Factory Manual and get the official Yanmar parts catalog with verified specifications and wiring diagrams.