Description

White MA20, A25, A30S Parts Catalog – Factory Specs for Forklift Repairs

Been chasing a part number for a White MA20 or A25 and getting nothing but dead ends from online parts houses? I’ve been there. You pull the old cylinder head, find the casting number, cross-reference it to a catalog that’s been photocopied so many times the lines blur, and you still order the wrong oil seal. This White MA20, A25, A30S Parts Catalog is an 83-page OEM document that’s been scanned directly from the factory binder. No reprints, no aftermarket guessing. It lists every part from the Brake assembly (A-19, A-20) to the Camshaft (F-11) and Valve train (F-11). The serial number ranges are printed right on page 1: 33500001 for MA20, 33700001 for A25, 356000 for A30S. That tells you exactly which revision this covers.

If you’re a shop owner or a DIY forklift operator in Texas who’s tired of paying dealership markup on gaskets, this catalog pays for itself on the first Engine overhaul. I’ve used these White catalogs to rebuild Transmission clutch packs on A30S units and never had a part come back wrong. The exploded view diagrams are clean – each component has a callout number that matches the numerical index (pages G-3 through G-13). You find the number, you look it up, you order the exact White part. That’s it.

Brake System Parts: A-19, A-20 and Brake Linkage A-16

The Brake section covers the shoe, drum, and wheel cylinder components plus the pedal linkage. If your MA20 pulls left under hard braking, the linkage rod or return spring is likely out of spec. The catalog has the part numbers for both the parking brake assembly (A-17) and service brakes. Don’t mix up the hardware packs – the catalog uses separate callouts for the backing plate retainers. Page reference: A-19 and A-20 for the main brake group.

Engine Component Diagrams: Camshaft, Valves, Tappets

Under the “F” section you’ll find the entire Engine group. Camshaft, Valve (F-11), tappets, connecting rods (F-10), pistons, crankshaft – all exploded with individual part numbers. The Valve train is critical on these White engines because the rocker arm shaft bracket bolts are torque-to-yield. While this catalog doesn’t list torque specs (you need the service manual for that), it does list the correct gasket set (kit 35R149) and valve grinding kit (35R150). I’ve seen guys order aftermarket valve seals that don’t fit the MA20 head – the OEM index eliminates that headache.

Transmission Clutches, Shafts, and Converter

White used a Borg-Warner style power shuttle in these trucks. The catalog breaks down the Transmission case (A-10), converter (A-11), and clutch/shaft assembly (A-12). There’s a separate section for the control valve (A-13) and the neutral start switch (A-14). If your A25 won’t shift into forward, you can identify the pressure regulator spring part number from the transmission control group (A-15). The dipstick tube seal is listed under A-7 – a tiny part that’s easy to overlook when you drain the fluid.

Hydraulic Pump and Control Valve Locations

The hydraulic system spans sections D-3 through D-14. You’ll find the Hydraulic Pump (D-8, D-9, D-10), the auxiliary and upright control valve (D-11, D-12), and tilt cylinders (D-15, D-16). There’s even a page for hydraulic disconnect couplers (D-5) and the accumulator (D-5). The steer pump and motor group (B-4) is separate. One detail I like: the catalog includes the power steering cylinder (B-6) and steering linkage (B-7) with all tie rod ends and dust boots. Saves a call to the dealer.

3 Systems Covered in the Numerical Index

The back of the book (G-3 to G-13) is a numerical index of every part number listed in the catalog. You only have to locate the part number on the exploded view, then cross-reference it to the index to confirm the illustration page. Three major systems – engine, transmission, and hydraulics – are fully detailed. Also included are decals (G-2), lights (C-10), and wiring harness (C-9). For the related manuals, check out White MY20, MY25, MY30, MY40C Parts Catalog – OEM Forklift Part Numbers and WHITE MA20B 25B 30SB Fork Lift Trucks Parts Catalog. There’s also White Fork Lift Trucks Parts Catalog R-2234 if you need a different series. For external references on internal combustion engine theory, see Internal Combustion Engine and the broader Automotive Industry Overview.

Frequently Asked Questions

Does this catalog include bolt torque specifications?

No. This is a parts catalog, not a service manual. It shows exploded views and part numbers. For torque specs, you need the matching service manual.

How do I find the correct part number for a brake shoe on MA20?

Turn to section A-19. The diagram will show the brake shoe with a callout number. Match that number to the numerical index on pages G-3 through G-13 to get the White part number.

Are aftermarket part numbers cross-referenced in this catalog?

No. Only OEM White part numbers are listed. You’ll need to cross-reference them yourself or use a third-party interchange guide.

Can I use this catalog for an A30S with serial number 357000?

Check page 1: the serial range for A30S is 356000 and up. 357000 falls within that range, so yes, this catalog covers your truck.

That covers it. If you’ve got a White MA20, A25, or A30S forklift and you need to order parts without the markup, this 83-page catalog gives you the factory data straight. Access the Factory Manual and keep it on your tablet next to the workbench.