Description

Doosan D20S-3, D25S-3, D30S-3, D32S-3, D33S-3 Parts Catalog

If you’re ordering parts for a Doosan lift truck without the factory parts book, you’re burning money and time. I’ve seen guys order a hydraulic pump off a generic listing and end up with the wrong displacement because they didn’t have the serial number breakdown. This Doosan D20S-3, D25S-3, D30S-3, D32S-3, D33S-3 Parts Catalog is 518 pages of OEM part numbers, exploded-view illustrations, and assembly groups straight from Doosan. No aftermarket reprints. No guessing.

How to Order Parts Exactly Right

The foreword in this catalog spells out exactly what you need: model name, serial number, quantity, part number, and part name. Don’t skip the serial number step. Doosan changes components mid-production, and the serial number stamped on the frame tells you which group your truck belongs to. One guy in my shop once ordered a steering cylinder off a D30S-3 list without checking serial – cost him two days waiting for the right one. Page after page in this catalog cross-references the assembly group with the correct part numbers. Use the abbreviation table on page 3 (see the ‘How to Use’ section) to understand notation like ‘M’ for metric threads and ‘X’ for major exchange components.

Using the Parts Book: Illustrations and Captions

Each illustration shows a group or assembly with a caption identifying the part number and name. Indented parts in the list mean they are subcomponents of the item above them. If you need a seal kit for the mast cylinder, you look up the mast group, find the cylinder assembly, and the indented list gives you the correct seal part number. No flipping back and forth guessing. The manual also notes service updates – the ‘Unnoticed Revision’ section warns that Doosan may have changed a bracket or hose routing after the book was printed. Cross-reference the serial range.

Lift Truck Identification: Serial Numbers Matter

Identification plates are mounted on the cowl or top cover. If that plate is gone or illegible, a decal on the top cover shows the model, and the frame has the serial number stamped. I’ve seen guys skip this step and order a D33S-3 cylinder when they actually have a D32S-3 with a different stroke. This catalog lists parts for D20S-3, D25S-3, D30S-3, D32S-3, and D33S-3 separately, using the serial number ranges noted at the start of each group (EM090-00001~UP and EMOGU-00001~UP). Do not order without the serial number.

518 Pages of OEM Specs

518 pages. That’s 518 pages of exploded diagrams, part number lists, and ordering instructions. Every page uses Doosan’s official numbering system. The abbreviations table on page 3 (original page 3 of the PDF) includes codes like ‘R’ for remanufactured parts and ‘Z’ for items not serviced separately. You get the full list of attachments and optional accessories – not just the base truck. If you are working on a D30S-3 with a two-stage mast, the book shows you the exact mast group configuration.

Why OEM Parts Catalog Beats Aftermarket

Aftermarket parts lists are garbage for these models. They lump D20S-3 and D33S-3 together, ignore serial splits, and often leave out the small details like the correct O-ring size for the hydraulic filter housing. This is an original Doosan publication. The ‘Parts Book’ header on every page confirms it. Compare that to a photocopy that blurs the part numbers – this PDF is clean, searchable, and every page is legible. I trust factory documentation because the engineers who designed the truck wrote the part numbers. Not some third-party site.

Common Questions About Doosan D20S-3 Parts

Can I use this parts catalog for the D32S-3 model?

Yes. The catalog explicitly lists D32S-3 models (6,500lb@24″ L.C.) under the same document.

What if the identification plate is missing or illegible?

Check the decal on the top cover for the model name, and look for the serial number stamped on the frame. The foreword in the catalog covers this procedure. If both are unreadable, contact a Doosan dealer with the frame number – the catalog alone won’t save you. In my shop, we keep a chalk marker near the lift truck parking area to write down serial numbers before they get worn off. Do it before you order anything.

Every time I walk into a parts department with a printout from this catalog, the counter guy knows I’m serious. He doesn’t argue. The part numbers match. The serial range is correct. That is the difference between a quick turnaround and a dead lift truck in the yard. You want that kind of certainty? Access the Factory Manual right now and stop relying on scrap notes.

Related manuals you might need: Doosan S340LC-V Parts Catalog | 612-Page OEM Parts Manual”>Doosan S340LC-V Parts Catalog, Doosan S225LC-V 2009 Parts Catalog – 692 Pages of Factory Specs”>Doosan S225LC-V 2009 Parts Catalog, Doosan M400-V Parts Catalog – 636-Page OEM Parts List for Wheel Loader”>Doosan M400-V Parts Catalog. For broader context on heavy equipment, see Automotive Industry Overview”>Automotive Industry Overview and Internal Combustion Engine”>Internal Combustion Engine.