Description

GEHL 5635, 6635 Parts Catalog – Factory Engine Parts Breakdown

You’ve got a GEHL skid loader torn down on the bay, a bucket of bolts that look alike, and a parts counter guy who reads from a screen that might as well be hieroglyphics. I’ve been there. That’s why I reach for the GEHL 5635, 6635 Parts Catalog before I touch a wrench. This is the factory book—not some aftermarket reprint that swaps a $5 bushing for a part number that dead-ends. 80 pages of part numbers, exploded diagrams, and quantities that match what comes out of the crate. If you’re rebuilding a Deutz BF4M1011F in a 5635 or 6635, this is the map.

Get the Right Part Numbers the First Time

Aftermarket parts lists are a gamble. Someone typed “fits all models” and called it a day. That’s not how a crankshaft or a camshaft works. This manual gives you the exact GEHL part number for every piece on the engine—crankcase, piston, valve, glow plug, turbocharger, you name it. Page 13 breaks down the Crankshaft assembly: you get the part number for the gear, the seal, even the screw plugs. No guessing. No cross-referencing three websites. Just a line item that matches what you pull off the shelf.

Crankcase and Rear End Cover Breakdown

The TOC starts with the crankcase (pages 2-3) and rear end cover (page 4). That’s where the block lives—the foundation. The manual lists the engine block itself as part number 133437, and then every bushing, guide sleeve, screw plug, and piston cooling nozzle. You see the quantity column? It tells you that you need eight piston cool nozzles (item 22, part 133226) and eight of those seal rings (item 23, part 133102). That’s the kind of detail that keeps a rebuild from turning into a parts run.

80 Pages of Factory Parts Data

Count them—80 pages, front to back, from cylinder head (page 17) to shutdown device (page 69). Each section has an exploded diagram with numbered callouts and a matching table. You don’t need to guess which O-ring goes where. The O-Rings section on pages 43-44 lists every sealing ring by size and part number. The fuel injector pump fasteners? Page 34. The starter motor? Pages 59-61. It’s all there.

What About the Fuel System?

Fuel injectors, pumps, lines—if you’re chasing a no-start or a miss under load, you need the right parts. This catalog covers the fuel injector pump and fasteners (page 34), the fuel injector cartridge (pages 36-37), the fuel supply pump (pages 38-39), and the transfer pipe (page 42). Every component has a GEHL part number. No aftermarket “equivalent” that’s 2mm longer. You order what the factory designed.

Audience Fit: Who Needs This Manual

If you’re a shop owner who has a 5635 or 6635 in for a top-end overhaul, hand this to the tech. If you’re a home mechanic who bought a used skid loader and want to stock the right gaskets before you pull the valve cover, this is your parts list. Beginners? You can follow the diagrams and match numbers. Professionals? You’ll save the time wasted on wrong parts. The GEHL SL5635 SL6635 1999 Engine Parts Book covers the same engine family. For a full machine parts breakdown, see the GEHL SL5635 SL6635 1999 Parts Catalog. Need just the skid loader? Check the GEHL 5635 6635 1999 Parts Catalog.

Source Validity: OEM, Not Aftermarket Guesswork

This is a genuine GEHL publication. Look at the introduction: “GEHL Company reserves the right to make changes or improvements.” That’s OEM language. The part numbers are GEHL P/N 130320 and the manual has Form No. 907763. this Wikipedia article on diesel engines covers the basic theory, but when you need to order a cylinder head gasket, trust the factory book. Aftermarket catalogs often skip the smaller items like bushing numbers or screw plug sizes. This one doesn’t.

Does this catalog include torque specs for the cylinder head bolts?

No. This is a parts catalog, not a repair manual. It lists the head bolt as a part number (see page 17), but you need a separate service manual for torque values and sequences.

Can I use this to order parts for a Deutz BF4M1011F engine in a different machine?

These part numbers are specific to GEHL 5635 and 6635 skid loaders. The engine is a Deutz BF4M1011F, but GEHL may use different accessories, brackets, or fasteners. Stick to the model numbers on the cover.

How are the diagrams laid out?

Each section has an exploded view with reference numbers. A table below lists the part number, description, and quantity. For example, the crankcase diagram on page 3 shows 23 items, from the engine block down to the safety lock agent. You see exactly which screw plug is 20 x 1.5mm and which is 14 x 1.5mm.

Is the manual printed or digital?

You get a digital PDF. It’s a direct scan of the original GEHL printed manual. No watermarks, no missing pages. 80 pages, complete.

Look, I’ve seen guys order a camshaft by measuring the old one with a caliper and hoping. That costs time and money. This catalog shows you the exact GEHL part number for the camshaft (page 21), the rocker arm bracket (page 22), the valve drive (page 23). Get the right parts before you start wrenching. Access the Factory Manual and keep it on your tablet next to the tool box.