Yaroslavsky Motor Plant ЯМЗ-240М2, ЯМЗ-240НМ2, ЯМЗ-240ПМ2, ЯМЗ-240БМ2 2000 Parts Catalog

If you’ve ever ordered a part for a ЯМЗ-240М2 by guessing from a blurry aftermarket database, you know how that ends. Wrong piston, wrong gasket, engine down another week. That’s why this factory catalog from Yaroslavsky Motor Plant is what you need on the bench. 112 pages, direct from the plant, dated 2000. It lists every part and assembly for the ЯМЗ-240М2, ЯМЗ-240НМ2, ЯМЗ-240ПМ2, and ЯМЗ-240БМ2 diesel engines. No reprints, no third-party transcription errors. This is the original Russian catalog with English preface – the same document the factory used to ship spares.

Part Numbers in Bold: The Stocking Guide

Page 1 of the catalog tells you exactly what’s what. Parts and units whose numbers are printed in bold type are the recommended market nomenclature for spares. When you’re building a stock list for a fleet of ЯМЗ-240НМ2 engines, you order the bolded numbers. The rest are captive assemblies you won’t normally replace individually. That’s a detail aftermarket catalogs leave out.

Interchangeability Codes: Letters and Digits Explained

The catalog uses a system you need to understand before you pick up the phone. Letters like A, A1, A2 at the end of a part number mean the part is interchangeable with earlier production. Digits like 01, 02 also indicate interchangeability. But letters Б, В, Г, Д or digits 10, 20, 30 mean the part is not interchangeable with the same number produced earlier. Page 1 describes this in both Russian and English. If you ignore these suffixes you’ll bolt on a part that fits the hole but changes the timing cover geometry – I’ve seen it happen.

Why a Factory Parts Catalog Beats Aftermarket Databases

Aftermarket databases are built by people who never laid a wrench on a ЯМЗ-240БМ2. They mis-translate, they omit the coating codes (like П2 for phosphatizing, П5 for copper plating), and they drop the interchangeability suffixes. This catalog includes every coating designation from the factory – see the preface on page 1. That matters when you order a fastener that needs copper plating for a fuel system application. You don’t get that from a third-party scan. Related: if you work on other heavy equipment, check the Massey-Harris-Ferguson FF 30 GS 1957 Parts Catalog | OEM Fastener Guide – it follows the same factory-origin principle.

ЯМЗ-240М2 Parts Catalog: Using It on the Workbench

Spread the catalog open next to the engine tag. The tag on the cylinder block has the model, serial number, and month/year of manufacture. The catalog is organized by groups – power units, diesel engines. Each specification (specification page) has an illustration and a list of component parts in order of increasing position numbers. You find the part, you note the bold or non-bold status, you look up the coating suffix. For wear parts like pistons and liners, always cross-check the engine serial number range. The catalog is current as of December 1, 2000 – if your engine was built after that, call Yaroslavsky Motor Plant directly. For torque specs and assembly sequences, you need the service manual, not the parts catalog. Motor Oil Specifications are also critical when selecting gaskets and seals.

Tools and Procedures for Ordering Spares

You’ll need the engine serial number, the full part number including suffix and coating code. Write it on a job card. For example, a bolt might be listed as "123456-П15" – the П15 means oxidized coating. Don’t leave that off. The catalog tells you to quote the engine model, number, and date on every order. That’s on page 2 of the preface. If you’re dealing with a ЯМЗ-240ПМ2 that has been overhauled twice, the interchangeability suffixes become critical – you may need the A3 version of a part that supersedes the earlier A1. Futura FC200-FC400 Parts Catalog – OEM Wear Parts Specs has similar supersession data for its line. Longagribusiness 410 DTC, 450, 450 DTC, 470 DTC, 530 DTC 2002 Parts Catalog also uses factory-origin part numbers with suffix codes.

That’s the difference between a catalog built by the guys who cast the block and a database scraped from a photocopy. You get the part right the first time, engine stays running, customer pays the invoice.

FAQ

Does this parts catalog include torque specs or repair procedures?

No. This is a parts identification catalogue, not a service manual. Torque values, clearances, and assembly steps are in the separate workshop manual for ЯМЗ-240 series engines.

How do I find the correct part number for a cylinder head on a ЯМЗ-240НМ2?

Look up the group "СИЛОВЫЕ АГРЕГАТЫ – ДИЗЕЛЬНЫЕ ДВИГАТЕЛИ" (Power Units – Diesel Engines). Find the illustration for the cylinder head assembly. Each component is numbered with a position number. The part number appears next to the illustration in the specification table. Check the bold type – if it’s bold it’s a recommended spare. Verify the suffix: if the engine is a later production, you may need an A2 suffix instead of the base number. Cross-reference with the engine serial number range printed on the block tag. If the number ends with Б or a 10-series suffix, that version is not interchangeable with earlier parts, so order that exact suffix.

Download the Factory Manual – the PDF from AutoRepairManuals is the exact scan of the original Yaroslavsky Motor Plant release, 112 pages, searchable. Stop guessing part numbers and get the OEM nomenclature on your screen.