Description

HATZ 1B20, 1B30 Parts Catalog – OEM Spare Parts Reference

If you’ve ever pulled a part off a HATZ 1B20 or 1B30 only to find the replacement doesn’t fit because some aftermarket catalog got the number wrong, you know the pain. That’s time and money down the drain. This HATZ 1B20, 1B30 Parts Catalog is the real deal – printed from the same plates HATZ uses to ship parts to dealers. 33 pages of nothing but factory Ident numbers and exploded views. No copy, no reprint, no third-party reinterpretation.

What You Get With This OEM Parts Catalog

You get the exact same document a HATZ dealer would pull up when you call in. It covers both the 1B20 and the 1B30 diesel engines. Each part is listed with its HATZ Ident number, quantity required, and position on the exploded diagram. Need a cylinder head gasket for the 1B30? Flip to the cylinder head group. The number is right there. No scrolling through vague descriptions. These engines are used in everything from pumps to small generators, and if you don’t have the right part, you’re dead in the water.

Does This Catalog Cover the 1B20 and 1B30?

Yes. The catalog is titled for both models. The first page lists “1B20” and “1B30” directly. It also includes the HATZ factory contact info and the part number 434 800 12-04.03-5 printed in Germany. If you own either engine, this is the parts list you need. It does not cover service procedures – that’s a separate manual. But for ordering parts, this is the only document you should trust.

3 Reasons an OEM Parts Catalog Beats Aftermarket

1. Correct Ident numbers. Aftermarket catalogs often transpose digits or update numbers months late. HATZ issues these catalogs directly. 2. Exploded diagrams. You see exactly how the parts fit together – helpful when you’re reassembling after a tear-down. 3. Order forms included. Page 2 of the PDF has the official HATZ order form with fields for engine type, serial number, and your shipping method. Fill it out and fax it to your local service station. No room for confusion.

Get the Right Part Number the First Time

Page 1 of the catalog includes the engine type and serial number block. When you order parts, you need that info. The catalog also lists the HATZ service stations – you can find the nearest one. For example, if you need a piston ring set, the catalog shows the exact Ident number. Order from your dealer using that number, and you get the right part. I’ve seen too many guys throw a piston because they trusted a generic cross-reference. Not worth it.

Spare Parts List: How to Use the HATZ Ident Numbers

The catalog uses HATZ Ident numbers – a 7- to 9-digit code. Each line in the parts list shows quantity, Ident number, and description. For example, on the order form you see “Stück / Qty” and “HATZ Ident No.” Write that number down. Call this Wikipedia article on diesel engines if you want to understand the engine technology, but for parts ordering, stick to the HATZ catalog. Aftermarket databases sometimes map to these numbers, but they can be off. Trust the original.

Related Manuals You Might Need

• HATZ Diesel 108 Series Spare Parts Catalog
• HATZ 1B40 Parts Catalog
• HATZ 4M42 Original-Ersatzteile Parts Catalog

FAQ

Does this catalog include torque specs or repair steps?

No. This is only a parts catalog. You need the separate service manual for torque specs.

How do I decode the HATZ Ident number on page 2?

The Ident number is the factory part number. On the order form, you write it in the “HATZ Ident No.” column. It is not interchangeable with generic numbers. The catalog also lists the engine type and serial number – you must provide those to your dealer. Without the serial number, the dealer might guess wrong. The catalog is 33 pages, so it’s not huge, but it covers every gasket, bearing, seal, and bolt for the 1B20 and 1B30. I’ve used this same format for twenty years. It works.

You need the right part the first time, not a round of returns. Access the Factory Manual now and keep it on your bench or tablet. When that 1B20 starts smoking because the injector return line is leaking, you’ll have the exact part number before you pull the wrench.