Description

GEHL 4510 Parts Catalog – Factory OEM Breakdown for Skid Loader Repairs

If you’re ordering parts for a GEHL 4510 skid loader without the factory parts catalog, you’re gambling with your time and money. Aftermarket reprints leave out the serial number splits and hardware callouts that tell you exactly which bolt grade goes where. This 80-page OEM Parts Catalog from GEHL gives you the part numbers, the torque specs inside the back cover, and the exploded views that prevent you from ordering the wrong fuel line or brake caliper. I’ve seen guys stall jobs for days because they trusted a third-party list. Don’t be that guy.

Decal Locations and Serial Number Verification (Pages 2-5)

Page 2 tells you where the model and serial number decal lives—inside the right chassis riser between the lift arm and lift cylinder. That’s the first thing you check. Without matching the serial number to the correct section, you’ll get parts for the wrong revision. The chart on pages 2-5 covers decal locations for the whole machine, including the fuel tank and engine compartment warnings.

Engine & Related Components: Two Serial Number Splits

GEHL split the 4510 production at SN5500. Pages 28-29 cover engines after that number; pages 30-31 cover earlier units. The same goes for the air cleaner, alternator, muffler, and radiator on pages 32-35. If you ignore the serial number break, you’ll order an engine mount that doesn’t line up. The part numbers are different. I’ve seen it happen. For background on the diesel engine itself, see this Wikipedia article on diesel engines. For more context, this Wikipedia article on diesel engines may be helpful, but the parts catalog is your primary source for exact components.

Check the Torque Specs on the Inside Back Cover

The hand brake and caliper section (page 22 for after SN3250, page 23 for before) lists the exact hardware. The real gold is on the inside back cover: the hardware torque specification table. It lists foot-pounds and inch-pounds for every fastener grade used. That table keeps you from overtightening a Grade 5 cap screw and snapping it off in the brake caliper bracket.

Wiring and Instrument Panel – Factory Schematic on Pages 16-17

Wiring and battery hookup are on pages 16-17. This isn’t a generic schematic—it’s the factory layout with wire colors and connector positions. If your 4510 has electrical gremlins, start there. The instrument panel, wiring, and battery section also shows the decal for the right/left orientation, which matters when you’re tracing the harness from the seat.

Hydraulic and Hydrostatic Systems – 11 Pages of Pumps, Motors, and Valves

Pages 24-27 cover the hydraulic system and hydrostatics. Then pages 41-51 go deep into pumps, motors, valves, and cylinders. There are later and early style drive pumps on both sides, and each has its own part number. The auxiliary control valve, 1000 PSI and 1200 PSI relief valves, and the Webster gear pump are all listed. If you need to rebuild the hydrostatic drive motor, the exploded view on page 47 shows every seal and bearing.

Fuel Tank, Chassis & Access Covers (Pages 6-7)

Chassis, fuel tank, grill, and access covers occupy pages 6-7. The tank is bolted to the frame with specific hardware. Don’t try to guess the fasteners—the manual lists them indented under the assembly. It also notes that common attaching hardware like cotter pins and set screws are included in the parts lists but not illustrated. That saves you from calling a dealer for a $0.50 bolt.

80 Pages of Factory Part Numbers – Why OEM Documentation Beats Aftermarket

Aftermarket parts catalogs often reprint a single revision and call it ‘universal.’ This GEHL manual covers both before and after serial number breaks for the engine, axles, lift arms, overhead guard, and more. It has an alphabetical abbreviation table on page 2 that explains every code from ALT to T. The numerical index from pages 69-76 lets you cross-reference part numbers. That index alone saves hours of searching through bins. The manual also includes a note on tire replacement policy—GEHL will not sell replacement tires, but wheel sets are available, and tire size info is given. All of this is condensed into 80 pages of nothing but part numbers, hardware callouts, and serial number splits. Factory original.

If you’re working on other GEHL models, check out GEHL 4610, 4510 Operators Manual – OEM Factory Specs for operator instructions, or the GEHL SL4640, SL4840, SL5640, SL6640 2005 Parts Catalog for later skid loaders. Also see GEHL SL7610, SL7710, SL7810 2005 Parts Catalog – OEM Factory Specs for the larger frame machines.

Frequently Asked Questions

Does this parts catalog include torque specifications?

Yes, inside back cover lists torque specs in ft-lb and in-lb.

Will this manual help me identify parts for a GEHL 4510 built after SN5500?

Absolutely. The manual splits sections by serial number. For example, engine components after SN5500 are on pages 28-29, and air cleaner/alternator/muffler/radiator after SN5500 are on pages 32-33. If your machine has a serial number above 5500, you use those pages. The same pattern applies to axles (split at SN3250), overhead guard (split at SN3650), lift arms (split at SN5300), and many other assemblies. Without this manual, you’d have to guess which parts fit your specific build date. The manual also includes the serial number decal location on page 2 so you can verify your unit’s exact range before ordering. That level of detail is why OEM factory spec documentation is the only reliable source for parts ordering on these machines.

Can I use this to order replacement wiring harnesses?

Yes, pages 16-17 cover the instrument panel, wiring, and battery. The wiring diagram shows connectors and wire colors. But note that the harnesses themselves are not illustrated as separate assemblies in this parts catalog—it lists individual connectors and terminals. For a full harness assembly, you may need the service manual.

How do I find the correct part number for the brake calipers?

Go to page 22 if your unit is after SN3250, or page 23 if before SN3251. The exploded view shows the caliper assembly with callouts. Match the serial number on the decal inside the right chassis riser first.

This is the manual I keep in the shop for any 4510 that rolls in. You don’t need to guess bolt grades or call the dealer for a part number—it’s all here. Access the Factory Manual and put it on your tablet or print a copy for the toolbox. Your future self will thank you when the job goes together without a hitch.