Description

Yale MP20, MP30S Parts Catalog – 48 Pages of Factory Part Numbers

I watched a guy last week order a steering group for an MP30S based on a third-party diagram. Wrong part. Twice. Cost him a day’s labor and a pissed-off customer. That’s exactly why you need the real Yale MP20, MP30S Parts Catalog – not some reprint, not a scanned guess. This is the original 48-page factory document that Yale service centers use. If you’ve ever stared at an aftermarket parts list and wondered if that seal fits the lifting cylinder on page 14, stop wondering. Here’s what you get.

7 Systems Broken Down by Figure Number

This catalog covers every major assembly on the MP20 and MP30S trucks. The table of contents runs from Fork carriage (Fig. 1, pages 6-7) all the way to the Console adapter (Fig. 18, pages 40-41). Each figure is an exploded view with callouts that match the text. You get Frame, Support and wheel, Hydraulic system, Lifting cylinder, Electronic system, Steering group, Brake system, Traction unit, Traction motor, Labels, and battery trucks. That’s 19 separate figure groups in one bound set. Automotive Industry Overview standards require this level of detail for safety equipment like brake and steering parts.

Hydraulic System and Lifting Cylinder – Parts You Can’t Guess

Hydraulic system (Fig. 4, pages 12-13) and Lifting cylinder (Fig. 5, pages 14-15) are the heart of any Yale forklift. One wrong O-ring or seal kit and you’re chasing leaks for hours. The catalog gives you OEM part numbers right next to the diagram. No interpretation needed. On page 12 you’ll see the entire hydraulic installation – pump, valves, lines – with each component labeled. Same for the lifting cylinder: piston, rod, gland, wiper seals – all factory numbers. Compare that to a generic manual that says “use appropriate seal.” That’s useless.

Electronic and Power Cables Diagrams – Factory Wiring, Not Guesswork

The Electronic system (Fig. 6, pages 16-17) shows you the circuit board and sensor locations. Then on page 34-35 there’s a full Power cables diagram (Fig. 15). If you’ve ever had to trace a short in the traction motor circuit without a schematic, you know the pain. This catalog gives you the exact wire runs and connector pins. Automotive Industry Overview reliability depends on correct wiring identification, and aftermarket diagrams often skip the traction controller pinouts. Here you get them.

Source Validity – OEM Print, Not a Rehash

I don’t trust aftermarket parts catalogs. Ever. This one is printed by Yale with part number 524150843 and T2500054 for the MP20-30S series. The legend of symbols on page 4 explains every icon used – no guessing what a circled letter means. Every figure is labeled in five languages (English, Italian, French, German, Spanish), so if the shop manual you have is in one language, you can cross-reference the part number across languages. That’s genuine factory documentation. If you need the companion service manual, check the Yale MP16 MP18 MP20 2002 Parts Catalog for earlier models or the Yale MP16 MP18 MP20 2006 Parts Catalog for later revisions. For other Yale equipment, the Yale OS 030 BC SS 030 BC 1997 Parts Catalog OEM covers similar architecture.

Does This Catalog Include Torque Specs?

No. This is a parts catalog, not a service manual. It’s for identifying parts and ordering correct components. For torque values, you need the separate Yale service manual. What it does give you are exploded views, part numbers, and quantity per assembly – critical when you’re rebuilding a Brake system (Fig. 8, pages 20-21) or replacing a Traction motor (Fig. 10, pages 24-25). If you need wheel bearings for the Support and wheel group (Fig. 3, pages 10-11), the part number is right there. No guesswork.

Who Needs This

If you’re a shop owner or a fleet mechanic maintaining a Yale MP20 or MP30S, you need this. Especially if you’ve ever ordered a part that didn’t fit because the online database had a superseded number. The catalog also covers the Double battery truck option (Fig. 13, pages 30-31) and the Fixed battery truck (Fig. 12, pages 28-29). For a DIY owner who does their own repairs, this is how you avoid buying the wrong hydraulic filter or steering seal. Pair it with a service manual and you’ve got the full package.

Does this parts catalog cover the MP20 only or also the MP30S?

Both. The cover lists MP20-30S. The entire document applies to both models with figure references common to the series.

How do I find a specific part number quickly?

Use the General index on pages 44-45. It lists every part figure, component name, and page number. Alternatively, start with the Part Figure Index on page 2-3 to locate the assembly (e.g., Steering group – Fig. 7 – page 18), then find the part callout in the exploded view. The legend on page 4 explains the symbols used, and page 5 tells you how to read the catalog correctly. If you’re ordering a part for the traction motor on page 24-25, note that the “part Fig. 10” notation means the reference number matches the diagram. Write down the part number (e.g., 524150843 series) and cross-check with your Yale dealer. One tip: always verify the suffix letter – some revisions are indicated in the parts list but not on the drawing. This catalog uses a five-language system so you can compare the Italian descriptor against the English if something looks off. I’ve seen guys order the wrong support wheel because they misread the diagram orientation – the index prevents that.

If you’re tired of cross-referencing three different websites to find a single seal, stop. Access the factory manual and keep it on your bench. One PDF, 48 pages, every part number for the MP20-30S series. Access the Factory Manual now and start ordering the right parts the first time.