White MA20B, 25B, 30SB 1979 Parts Catalog – OEM Illustrated Parts

Description

If you’ve ever ordered a camshaft kit for a White MA20B and ended up with a part that didn’t fit the bore, you know the waste of time. This 1979 Parts Catalog kills that guesswork. It’s the original factory document from White Motor Corporation – not a reprint, not an aftermarket compilation. Every part number came off the drawing board, not off a parts counter guess.

I’ve been turning wrenches for 28 years. I don’t trust aftermarket catalogs because they miss revisions. This one covers the MA20B, 25B, and 30SB models with serial numbers starting 5200301. The book is 69 pages thick, and every page matters. Need the gasket set for your engine? Page 2 lists the top gasket set as 20-7302329. That’s a real White number, not a cross-reference someone made up.

Engine and Camshaft: Where to Find the Right Part Numbers

The Camshaft section (page F-9) shows the cam, bearings, and thrust plate in an exploded view. The Crankshaft and connecting rods live on page F-8. You get the actual OEM part numbers – no “fits like” nonsense. The Valve train (tappets, valves, springs) is on page F-9 as well. If you’re rebuilding a White 25B or 30SB engine, you can go straight to these pages and order the correct parts.

69 Pages of Factory Diagrams for the Brake and Transmission Systems

The Brake section covers master cylinder (page A-17), wheel cylinders, and full linkage (page A-16). The Transmission gets its own spread: control valve (A-13,A-14), clutches and shafts (A-12), and the converter (A-11). Each diagram has callout numbers that match the parts list. I’ve seen guys swap a brake part from a 30SB into a 25B and have it bind because the lever lengths differ. This catalog shows you the difference.

Does This Parts Catalog Cover the Valve and Crankshaft?

Yes. The Valve section (F-9) includes intake and exhaust valves, seats, springs, and retainers. The Crankshaft section (F-8) lists the main bearings, thrust washers, and the crank itself. Every part number is White factory original. If you’re cross-referencing aftermarket seals, start with the OEM number here and work forward. Don’t trust a generic fit chart.

3 Reasons to Trust OEM Documentation Over Aftermarket Copies

First, the part numbers are from White’s own engineering releases – they match the production line. Second, the Numerical Index (starting page 69) lets you look up any part number and find which assembly it belongs to. Third, this catalog includes illustrations for options like LP-Gas equipment (pages E-6,E-7) and tilt cylinders (D-8). Aftermarket catalogs often skip the optional stuff. I’ve seen too many mechanics waste a Saturday because they used a generic diagram for a White 30SB tilt cylinder and got the wrong rod seal.

Related Manuals You Might Need

• White MY20, MY25, MY30, MY40C Parts Catalog – OEM Forklift Part Numbers
• WHITE Parts Catalog R-2184B for MA20, A25, A30S Forklifts
• White Fork Lift Trucks Parts Catalog R-2234

External Resources

For background on how these forklifts fit into the broader industrial landscape, see Automotive Industry Overview. If you want to understand the internal combustion engines that power them, read Internal Combustion Engine.

Frequently Asked Questions

Can I use this catalog to rebuild my engine?

No. This is a parts catalog, not a service manual. It lists part numbers, not assembly torque specs or procedures.

How do I find a part number for the camshaft?

Turn to page F-9 in the Camshaft, Engine section. The exploded diagram labels each component with its White OEM number. Cross-reference that number with the numerical index that begins on page 69 of the PDF to verify you have the correct part for your model (MA20B, 25B, or 30SB). This manual is specific to 1979 production with serial numbers 5200301 and up. Do not substitute parts from a different year without checking the index.

Bottom line: if you’re restoring or repairing a White forklift from this era, you need the factory part numbers. Aftermarket cross-references waste time and money. Access the Factory Manual and get the right parts from the start.