GEHL 4400 Parts Catalog

Got a busted hydraulic line on your GEHL 4400 and you’re scrolling through some third-party diagram that shows a part that’s close but not the right one? That’s how you waste a weekend and $60 in return shipping. I’ve been turning wrenches since before you were born, and I can tell you the only way to guarantee you’re ordering the correct replacement is with the factory parts book. This is the GEHL 4400 Parts Catalog — 56 pages of original OEM print. Not a reprint, not a scan of a scan. The exact document GEHL shipped to dealers. It breaks down every subassembly — from the Perkins diesel to the Ford gas and LPG engines — into exploded diagrams with callouts. You get the part number, the description, the quantity, and notes about whether that hex cap screw is Grade 5 or something else.

Engine Coverage: Perkins, Wisconsin, Ford – Gas and LPG

Pages 3 through 14 cover four distinct engine options. Perkins diesel is on pages 3-5, Wisconsin on 6-7, Ford gas on 8-10, and Ford LPG on 11-14. Each section has an exploded view of the engine and lists every gasket, seal, piston ring, and bolt. Need a head gasket for the Perkins? It’s right there. The manual uses consistent abbreviations — HHCS for hexagon head cap screw, SL for self-locking thread — so you don’t have to guess. If you’re rebuilding an engine, this catalog is your parts list.

Hydraulic Systems: Three Serial Number Ranges

Hydraulics on these loaders changed depending on when it was built. The manual splits it into three sub-sections (pages 25-31). Wisconsin & Ford units before serial #2167 use one set of parts; after #2166 a different set. Perkins diesel before and after serial #1686 also have separate diagrams. Each diagram shows the pump, control valve, cylinders, and hoses with individual part numbers. For newer loader models like the GEHL SL4640, SL4840, SL5640, SL6640 2005 Parts Catalog, the hydraulic layouts are different, but for this 4400 you need the specific serial range. The manual also lists the hydraulic pumps, motors, valves and cylinders in a dedicated section after the electrical system — all factory spec.

Axle, Drive, and Main Frame: What’s Listed on Page 22?

Pages 22-24 cover the axle and drive train — both chain cases, sprockets, bearings, and seals. The Main Frame section (pages 15-17) shows the chassis and mounting brackets. Load Arm is on page 21 alone — that’s a single page because GEHL kept it simple. If you’re replacing a cracked load arm pivot bracket, the part number is there. Console & Controls (pages 18-20) lists the foot throttle, steering wheel, and all the levers. Don’t try to match aftermarket diagrams. Stick with the OEM drawing. For other GEHL models that share some drivetrain parts, check the GEHL SL7610, SL7710, SL7810 2005 Parts Catalog – OEM Factory Specs for cross-referencing.

Electrical System and Console Controls: Factory Diagrams

Pages 32-33 cover the electrical system — starter, alternator, wiring harness, and battery cables. The diagram is schematic-style with part numbers for each component. Console & Controls (pages 18-20) include the foot throttle, ignition switch, and instrument panel. If your 4400 won’t start, the electrical page tells you the exact starter solenoid part number. No need to buy a universal replacement that doesn’t fit. The GEHL RS6-34 2013 Parts Catalog – Factory OEM Manual is a different machine, but the same logic applies — factory data beats anything else.

56 Pages of Factory Spec Data

That’s the whole thing: 56 pages. Every fastener is called out with its grade. Standard hardware torques are in a chart at the end of the manual — cap screws, hex nuts, lock washers. The manual even explains how to read the diagrams: common hardware like nuts and bolts are listed but not illustrated, and the attaching hardware table inside the back cover gives you the numbers for those. If you want to understand diesel engine basics, this Wikipedia article on diesel engines covers the fundamentals, but for parts ordering, you need the factory catalog. For a deeper look at diesel engine operation, this Wikipedia article on diesel engines covers the cycle.

FAQ

Does this catalog include torque specifications?

Yes, standard hardware torques are in a chart at the end of the manual.

How do I know which engine section to use for my 4400?

Three engine options are covered: Perkins diesel (pages 3-5), Wisconsin (pages 6-7), and Ford in gas and LPG (pages 8-14). Your serial number will help, but the manual also notes which engines were used with specific serial number ranges for the hydraulic system. If your loader has a Perkins, use pages 3-5. If Ford gas, go to pages 8-10. Check the engine tag to confirm. This catalog makes it clear.

Are exploded diagrams included for the hydraulic system?

Yes. The Hydraulic Systems section (pages 25-31) splits into three serial number ranges. You get separate diagrams for Wisconsin & Ford units before serial #2167 and after, plus Perkins diesel before and after serial #1686. Each diagram shows part numbers.

Can I use this to order parts online?

That’s exactly what it’s for. Each part has a GEHL number you give to your dealer. Tires are excluded, but wheel sets are listed. Common hardware like nuts and bolts are listed but not illustrated, and the attaching hardware table inside the back cover gives you numbers for those.

If you own a GEHL 4400 and need to order parts, stop wasting time on aftermarket sheets that might be close. This is the real thing. 56 pages of factory-issued parts data, direct from GEHL. Access the Factory Manual and keep it on your tablet or print it for the workbench.