Description

Yanmar 4Tn100Te Parts Catalog

If you’ve ever ordered a gasket or bolt for a Yanmar 4Tn100Te engine from an aftermarket listing and ended up with a part that didn’t fit, you know the headache. The wrong O-ring size, a mislabeled plug thread, a bolt that’s 5 mm too short — each mistake costs you an hour of chasing parts. This Parts Catalog kills that guesswork. It’s the factory-issued breakdown of every fastener, seal, and casting for the 4Tn100Te diesel. 100 pages of OEM part numbers, exploded views, and variant-specific callouts. Nothing generic.

Let me walk through what you actually get.

Cylinder Block: 48 Parts and How They Fit

Figure 1 in the catalog lays out the cylinder block assembly with every single part referenced. You get the block assy (part 71010-01580), the gasket (11900-02030), the combination bolts, guide studs, oil gallery plugs — 48 individual line items. Each row shows the part number, description, and quantities for each engine variant (A through F). The catalog flags oversize (O.S.) oval parts and includes notations like “SCRE W.D. 1/C” for thread identification. If you’re rebuilding a bottom end, you pull this page and order exactly what Yanmar called for.

Gear Housing Breakdown – Fig. 2 Details

Gear housing assy comes in two versions: 71010-01610 and 71010-01620. The catalog shows which variant fits PN105S-(GB), PN105L-(GB), or PN1072L US-GB1-. You also get the oil level gauge (71010-01710) and the O-ring sizes. No guessing which plug goes where — the exploded diagram puts every part in its physical position.

That kind of clarity saves you from having a pile of unlabeled fasteners on the bench at 6 p.m. with a customer waiting.

3 Reasons This OEM Parts Catalog Beats Aftermarket Listings

First, aftermarket catalogs often merge part numbers across model years or engine families. The 4Tn100Te has specific studs, washers, and seals that don’t cross to the 4Tn98 or 3T series. This catalog keeps them separate. Second, the diagrams show the exact location of each part — you see a bolt labeled “BOLT, METAL CAP” and know it goes on the cylinder block cap, not the gear housing. Third, the part numbers are original Yanmar codes, not re-indexed third-party numbers. When you walk into a dealer with 11900-02540, you get the right bolt. Every time.

100 Pages – What the Table of Contents Covers

There’s no table of contents listed in the source file, but the structure is clear from the OCR: the catalog is organized by individual assemblies. Cylinder block (Fig. 1), gear housing (Fig. 2), and likely the cylinder head, oil pan, fuel injection system, and cooling components follow. Each figure has its own parts list with reference numbers, part numbers, descriptions, and quantities per variant. The page count is 100 pages because every nut and seal gets its own line instead of being lumped into a vague “gasket set.”

If you’ve ever had to disassemble a 4Tn100Te and reorder parts based on visual inspection alone, you understand the value of a printed reference. You mark the pages you need, staple a copy to the work order, and move on.

What’s the Right Part for Your Variant?

The catalog uses letter codes (A-E) to indicate which parts belong to which engine build. For example, the cylinder block assy is the same across variants A, B, and C, but the oil gallery plugs differ. The O-ring for the T A-P:32 G (part 12410-03220) is used on all variants, but the oil drain gauge bushing (11900-03010) is only fitted on A-E builds 6 and up. The notation “(A-E)(6)” tells you the part applies to variants A through E, plus build number 6. That level of detail prevents ordering a seal that doesn’t seat correctly because the housing was machined for a different generation.

You don’t need to be a Yanmar expert to decode it — the catalog is laid out in a repeating, predictable format. Every figure starts with a diagram, then a table. Read left to right, match your variant code, and write down the numbers.

Source Validity: OEM Print vs. Aftermarket Scans

This is an original factory file — YANMAR_4Tn100Te_Parts_Catalog_en-25414011065.pdf. That’s not a reprint from some secondhand manual aggregator. The pages show the Yanmar Co., Ltd. and Yanmar Agricultural Equipment Co., Ltd. copyright markings. When you compare the part numbers here to what you find on aftermarket parts sites, you’ll notice discrepancies — aftermarket databases sometimes drop the leading zero or substitute a superseded number. The catalog gives you the original number as released by Yanmar, so you can verify with your local dealer. If you want more context on how engine parts catalogs fit into the broader Automotive Industry Overview, that link gives background on documentation standards. For a deeper dive on the Automotive Industry Overview in general, that’s a good read.

Related Manuals for Yanmar Engines

If you work on multiple Yanmar platforms, these related catalogs are worth having on the shelf:

• Ammann Yanmar B12 B17 Parts Catalog
• Yanmar YB271, B27 1994 Parts Catalog – OEM Factory Specs
• Yanmar YB301 YB351 1991 Parts Catalog – 248 Pages OEM

Frequently Asked Questions

Does this parts catalog include torque specifications?

No. This is a parts catalog, not a service or repair manual. It lists part numbers, quantities, and variant callouts. Torque values are not included — you need the factory service manual for that.

Can I use this catalog to order parts for a Yanmar 4Tn100Te engine?

Yes. That’s exactly what it’s for. Every part number in this catalog is from the Yanmar factory parts system for the 4Tn100Te. You look up the assembly you’re working on, find the diagram, cross-check your variant code (A-E), and write down the 8- or 10-digit part number. Take that to any Yanmar dealer or online parts retailer and you’ll get the correct component. The catalog covers the complete engine — block, head, gear housing, oil system, and more.

Is this a physical book or a PDF format?

It’s a digital PDF file. You access the factory manual immediately after purchase. 100 pages, fully searchable, printable if you want a paper copy for the shop. No watermarks or degraded scans — it’s the original OEM file.

Are the part numbers current and still available from Yanmar?

Part numbers in factory catalogs don’t expire, but supersessions happen. Yanmar may have updated a bolt or gasket with a newer part number after this catalog was printed. The catalog gives you the original reference. To check current availability, cross-reference the number with your local Yanmar dealer or their online parts portal. For a list of superseded parts, you may need the latest factory service bulletin. The catalog is still the authoritative base for identifying what was originally fitted.

Bottom line: if you’re tearing down a 4Tn100Te and need to order parts, this catalog saves you the back-and-forth of returning wrong parts. You get the exploded views, the correct part numbers, and the variant breakdowns. Access the Factory Manual and put it on your tablet or print out the sheets for the engine you’re working on. One less thing to screw up.