Description

Aixam Z402-B Parts Catalog – Factory OEM Part Numbers and Exploded Diagrams

Aixam Z402-B Parts Catalog – I’ve been wrenching for 28 years, and the single fastest way to turn a two-hour job into two days is ordering the wrong part. You pull a piston pin and find the bore is a few thousandths off, or the ring gap is wrong because you grabbed a generic replacement. This 53-page OEM catalog kills that problem cold. It’s the original factory document, not some aftermarket reprint that leaves you guessing. You get the exact part numbers, exploded views, and the REF.No. system that tells you which assembly the part belongs to. Page 1 says it plain: “When ordering parts, check with this Parts List to confirm the part number and the name of parts.” That’s the whole point.

Every page gives you a clear illustration with reference numbers, part numbers, quantities, and even serial number groups. You don’t have to guess if that piston ring set is for the early or late production run – the S.No. column spells it out. I’ve seen guys try to match parts by eye, and it costs them a weekend. This catalog pays for itself the first time you avoid a return. For related equipment, the Massey-Harris-Ferguson FF 30 GS 1957 Parts Catalog | OEM Fastener Guide uses a similar REF.No. system – worth a look if you deal with vintage tractors.

Exploded View Diagrams – Why They Matter

Page 2 gives you a perfect example: the piston crankshaft group. You see the piston (REF.No. 010), the pin (020), the ring assembly (030). Each has its own factory part number – 15800-0000-0 for the piston, 15800-1000-0 for the pin. The diagram shows you exactly where each piece goes. When you’re staring at a pile of parts on the bench, that drawing tells you the order of assembly and which fasteners belong where. No guesswork.

The Aixam Z402-B is a microcar – that Kubota-derived diesel or the Lombardini gasoline engine – and the parts cross over between models can be tricky. This catalog lists the exact model code Z402-B-AIXAM-1 with code number 17580-00000. If you try to use a generic parts site, you’ll get a “might fit” list. Factory OEM is the only way to guarantee the part you install is the one the engineer designed.

How to Use the REF.No. and Lo.No. System

The manual uses a two-column page numbering: XXX-L for left, XXX-R for right. That’s the Lo.No. system. Don’t let it throw you – it’s just a way to keep the illustration paired with its parts list. The REF.No. you see in the diagram (like 010, 020, 030) matches the same number in the table. If a part has a dot next to it (point 4 in the instructions), that part is not sold separately – you have to order the assembly. For example, the piston ring assembly (030) comes as a set; you cannot buy a single ring. That kind of info keeps you from wasting money on partial fixes.

The instructions on page 2 also explain that the S.No. column tells you which serial numbers the part fits. If your Aixam Z402-B has a frame serial number, you can cross-check exactly which piston pin revision you need. For microcar owners, Automotive Industry Overview gives some background on the evolution of these vehicles, but for parts ordering, stick to this catalog.

Get the Right Part Number the First Time

You want a cylinder head gasket? You find the assembly drawing, note the REF.No., then look up the part number in the list. No measuring, no guessing, no calling the dealer hoping the kid behind the counter knows what a Z402-B is. Every part number is right there: 15800-2000-0 for the piston ring assembly, for instance. Write it down, order it, bolt it on.

One thing I see DIYers mess up: they think a parts catalog is the same as a service manual. It’s not – this catalog won’t tell you torque specs or R&R procedures. That’s a separate document. What it will do is give you the exact OEM part number so you can order from the dealer or a reputable source. For the electrical system, Automotive Battery covers battery specs – but the starter relay part number comes from this catalog.

Also check out Futura FC200-FC400 Parts Catalog – OEM Wear Parts Specs – same type of factory documentation for another popular microcar line. If you work on agricultural equipment, Longagribusiness 410 DTC, 450, 450 DTC, 470 DTC, 530 DTC 2002 Parts Catalog follows a similar exploded-view format.

Piston Crankshaft Assembly: Page 2 Details

Let’s drill into page 2. The illustration shows ten components: piston, pin, rings, crank, bearings, seals. The table lists part numbers for each – note that the piston (REF.No. 010) uses part number 15800-0000-0, quantity 1. The pin (020) comes in two variations depending on serial number: 15800-1000-0 and 15800-1000-2. That’s the kind of detail that saves you an engine teardown when the wrong pin binds. The manual also includes a numerical index at the back – you can look up any part number and find the page it appears on.

53 Pages of Authentic Factory Data

This catalog is 53 pages of pure OEM specification. No fluff, no generic illustrations, no vague “this may fit” notes. It was printed by Aixam for their service network. The notice on page 1 says “This Parts List is subject to change without notice” – so if you buy this document, check the revision date. The original filename is Aixam_Z402-B_Parts_Catalog_en-fr-de-36714005639.pdf, confirming it’s the trilingual European version (English, French, German). If you’re in North America, the part numbers are still valid – Aixam exports these microcars and the factory parts system is global.

Keep in mind: this catalog covers only the Z402-B model. If you have the Z402-A or Z402-C, the part numbers may differ. The data here is accurate for the specific code number listed. For any serious engine repair, transmission overhaul, or electrical troubleshooting, you’ll want the matching service manual. But when it comes to ordering the right bolt, bearing, or seal, the parts catalog is the only source you should trust.

Does this parts catalog include torque specs for assembly?

No. This is strictly a parts identification document. Torque values and service procedures are in the Aixam Z402-B service repair manual.

Can I use this catalog for the Aixam Z402-A or Z402-C models?

Only if the part numbers cross-reference. The catalog is specific to the Z402-B-AIXAM-1 code. Many engine components are shared, but always verify using the serial number column (S.No.) before ordering.

Are the part numbers in this catalog still active and orderable?

Most are, but Aixam occasionally supersedes numbers. You should verify with a dealer before ordering. The catalog provides the original factory numbers – a dealer can cross-reference any supersession.

What if I can’t find a part number in the numerical index?

Check the group pages. The index covers every listed part, but if the part is not illustrated in the exploded views (e.g., a special hardware fastener), it may not appear. In that case, you may need the Aixam master parts catalog or contact a dealer with your chassis number. The catalog’s page 3 instructions explain how to read the REF.No. to locate any illustrated part.

So here’s the bottom line: if you own an Aixam Z402-B and want to fix it right, you need the factory parts catalog in your tool box – digital or printed. Stop wasting money on parts that don’t fit. Stop spending hours trying to match parts by eye. Access the Factory Manual from AutoRepairManuals and get back to wrenching with the right numbers in your hand.