Description

TCM FG20C6H, FD20C6H, FG20T6H, FD20T6H, FG25C6H Parts Catalog

If you need a part number for a TCM forklift, the factory parts catalog is the only source you can trust. Not a third-party list. Not a PDF copied off a worn-out microfiche. This is the 228-page OEM document covering the FG20C6H, FD20C6H, FG20T6H, FD20T6H, and FG25C6H models. Page 3 spells out exactly how to read the illustrations, find the FIG numbers, and match machine serial numbers to the correct parts. You don’t guess—you look it up.

What You Get from This Parts Catalog

This is a parts manual, not a service manual. It won’t tell you how to rebuild the torque converter or set valve lash. What it gives you is an exploded diagram for every major assembly, with each part numbered and listed with the OEM part number and quantity. The table of contents on page 4 shows sections like ENGINE MOUNT, AIR CLEANER (G-TYPE and D-TYPE), COOLING UNIT, FUEL SYSTEM, ELECTRIC PARTS, DRIVE UNIT MOUNT, MISSION CASE (C-TYPE and T-TYPE), STEERING AXLE, and many more. Each section has its own FIG number so you can cross-reference fast. For a shop that stocks or orders parts, this catalog is the master list.

Torque vs. Part Number: Why the Difference Matters

A lot of guys buy a parts catalog thinking it contains torque specs and adjustment procedures. It doesn’t. Torque values belong in the service manual. What this catalog does is give you the correct part number for every bolt, seal, gasket, and assembly. If you’re replacing a clutch pressure plate on a C-TYPE transmission, you need the exact part number—not a generic substitute. The catalog shows you the assembly drawing and the breakdown. Order from that, and you get the right part. Skip that step, and you’re on the phone with the parts house trying to return a misboxed item.

3 Sections That Will Save You Time

First, the ENGINE MOUNT section. You get the brackets, isolators, and hardware all in one drawing. No flipping between diagrams. Second, the DRIVE UNIT MOUNT section—critical for aligning the drivetrain when you swap a transmission. Third, the STEERING AXLE section, including the ORBITROL () variant. Each of these sections has a clear illustration and a parts list with quantities. On page 3, the manual explains the abbreviations: ASSY for assembled unit, AR for as required, T for thickness. Knowing these keeps you from ordering a complete assembly when you only need a bushing.

Does This Manual Cover the Transmissions?

Yes, it covers both the C-TYPE (clutch) and T-TYPE (torque converter) transmissions. Under C-TYPE, you’ll find sections for CLUTCH, MISSION CASE, MISSION GEAR, CONTROL VALVE, REDUCTION, and DIFFERENTIAL. Under T-TYPE, sections include TORQUE CONVERTER CASE, CHARGING PUMP, MISSION CASE, and CLUTCH PAVL. Each transmission type has its own set of illustrations and part numbers. If your machine has a T-TYPE, don’t use the C-TYPE parts list—the pump and converter components are different. This catalog keeps them separate.

Get the Right Parts Without Guessing

The manual explicitly states on page 2 to always use TCM genuine parts. It cannot guarantee trouble from non-OEM parts. That’s not a sales pitch—it’s a warranty reality. When you order a water pump for the FD20C6H diesel, the part number comes from the COOLING UNIT (D-TYPE) section. You match it to the machine serial number on the nameplate. That extra step—verifying the machine number—is what separates a professional parts order from a returned shipment. This catalog gives you the exact data to do that.

If your fleet includes other TCM models, check the TCM FD60Z8 FD70Z8 FD80Z8 FD100Z8 Parts Catalog – 650 Pages for larger pneumatics, the TCM Isuzu-4218A-E Parts Catalog – 478 Pages OEM Factory Manual for engine-specific parts, and the TCM 125B Parts Catalog – 244-Page OEM Factory Manual for the 125B series. These are all factory originals, not reprints.

Forklifts like these use internal combustion engines similar to those described in this Internal Combustion Engine overview, and the parts catalog industry as a whole is part of the Automotive Industry Overview. But when you need a specific part number for your TCM, stop looking at general references and use the real document.

How do I locate a part number for a specific assembly?

Use the table of contents to find the FIG number, then look up the illustration and parts list.

What if I need torque specs for the cylinder head?

This is a parts catalog, not a service manual. Torque specifications are found in the factory service manual for these models. A parts catalog only gives you the part numbers for head bolts, gaskets, and related components. You need both the service manual and this parts catalog to do a complete job. The service manual covers assembly procedures, clearances, and torque values. This catalog ensures you order the correct parts before you start. Get both if you’re doing a major overhaul.

When you have the OEM parts catalog on your workbench, you’re not flipping through generic websites hoping the diagram matches. You’re holding the same document the dealer’s parts counter uses. Every part number is verified by the manufacturer. Access the Factory Manual now and keep your inventory straight.