Description

Yale GDP 040 RG, GDP 050 RG 2002 Parts Catalog

Ordering parts for a lift truck without the factory breakdown is throwing money into a parts washer. I have seen too many guys guess on a seal or a bearing and end up with a machine down because the aftermarket cross-reference lied. That is why you need the **Yale GDP 040 RG, GDP 050 RG 2002 Parts Catalog** on your bench. This is a 444-page OEM document direct from Yale Materials Handling Corporation, published 10/2002, part number 520371741. It covers the A875 series trucks with exact exploded views and part numbers. You do not guess with this thing – you flip to the section, find your component, and order the correct piece.

Engine Assembly Coverage

Section 2 – ENGINE ASSEMBLY – breaks down everything from the cylinder block (page 2-2) to the camshaft and valves (page 2-6), crankshaft and pistons (page 2-8). If you are swapping a head gasket on a GDP 040 RG, you need the factory gasket set number, not some universal kit. The manual lists every bolt, washer, and shim exactly as it left the plant. I have seen aftermarket drawings swap a 10mm bolt for a 12mm and cause a cracked block. Do not take that risk. This Yale Parts Catalog shows the OEM configuration.

Cooling System and Fuel System: Two Systems You Cannot Ignore

Section 4 covers the COOLING SYSTEM – radiator, fan, water pump mounts, hoses. Overheating on a GDP 050 RG with a loaded mast will warp a head faster than you can blink. Section 5 – FUEL SYSTEM – includes the air cleaner mounting and all fuel line routing. Note the split serial numbers: for S/N A875B-13057 you get one air cleaner layout; after that, a different assembly (pages 5-10 and 5-12). The manual accounts for those production changes. Aftermarket catalogs typically ignore those splits and give you one generic picture. That generic picture will cost you half a day when the bracket does not line up.

Electrical System: What the Factory Schematic Includes

Section 6 – ELECTRICAL SYSTEM – covers the alternator (page 6-4) and specific types GS, LPS, and DS (page 6-6). If you are chasing a no-charge condition on a Yale GDP 040 RG, the factory wiring diagram shows the correct ground path and connector pinouts. I have fixed three charging faults in the last year where someone used a Chinesium alternator with a different plug – the manual gives you the exact part numbers for the OEM alternator and regulator. No chasing around the internet with your phone held up to the engine bay.

Transmission and Brake – Where Most Aftermarket Parts Fail

Section 7 – TRANSMISSION – details the control valve assembly with serial number breaks (pages 7-8 and 7-12) and conversion kits in section 15. The BRAKE SYSTEM (section 10) covers the brake lines, pedal linkage, and entire hydraulic brake assembly from page 10-2 onward. I have seen cheap brake pads that are 3 mm too thick – they lock the rotor. This catalog gives the OEM pad thickness and part number. You order that number, you get the part that fits. Section 11 covers HYDRAULIC SYSTEM, section 12 the LIFTING MECHANISM. Every hydraulic hose and fitting is listed. If you need a replacement hose for a two-stage mast, the manual tells you exactly which header hose group it belongs to (section 13).

444 Pages of Verified Part Numbers

The book is 444 pages of pure factory data. It includes an alphabetical index, numerical index (section 16), and user support information. Sections 14 (OPTIONS) and 15 (FIELD CONVERSION KITS) cover things like amber flashing beacons and audible alarm kits. If you are installing a conversion kit on a GDP 050 RG, you turn to section 15 and get the exact parts list. No aftermarket reprint – this is a scanned OEM document from 2002. The part numbers are the same ones Yale uses today. You can call your dealer and read them the number. They will ship the right part. Want related manuals? Check the Yale OS 030 BC SS 030 BC 1997 Parts Catalog OEM for smaller trucks, or the Yale MP, MPB 040 AC 1997 Parts Catalog Factory OEM for electric models. For older equipment, Eaton Yale & Towne 1700 1969 Service Manual – OEM Factory Data covers the heritage lineage. For industry context, see Automotive Industry Overview or Automotive Industry Overview on Wikipedia.

Frequently Asked Questions

Does this manual cover the GDP 040 RG and GDP 050 RG with the same serial number range?

Yes, it covers both models under the A875 truck code. The serial number breaks are noted throughout – for example, the air cleaner assembly splits at S/N A875B-13057 before and after. Always check the serial number on your nameplate against the manual’s callouts.

What year is this manual printed for?

10/2002. That is the publication date. It matches the model year for the GDP 040 RG and GDP 050 RG trucks produced around that time.

Are the brake part numbers in section 10 valid for aftermarket conversions?

Section 10 lists factory brake components for the stock system. If you are converting to a different brake setup, section 15 (field conversion kits) may list a kit. But for stock replacement, use the numbers from section 10.

Can I use this manual to order parts for a GDP 050 RG with a two-stage full free-lift mast?

Yes. Section 12 includes the carriage and mast breakdowns for two-stage full free-lift (page 12-54) and other mast types. The manual shows the specific hose routing and attachment parts for that mast.

You need the right part number the first time. That is what this factory Parts Catalog gives you. **Access the Factory Manual** from AutoRepairManuals and keep it on your tablet or print it out. When a GDP 040 RG comes in with a blown transmission seal, you will have the diagram and part number in 30 seconds. That is the difference between a professional repair and a parts-chasing nightmare.