GEHL 803 2008 Parts Catalog

If you are tearing down a GEHL 803 compact excavator and guessing part numbers from a blurry online photo, stop. I have seen bent bolts and leaking hydraulics because someone ordered the wrong o-ring based on a third-party parts list. The GEHL 803 2008 Parts Catalog is what you need on the bench. 224 pages of factory-verified numbers, torque values, and exploded views. No guesswork.

I run a six-bay shop in San Antonio. When a customer drops off an 803 with a bad track motor, I do not waste time flipping through aftermarket reprints. I grab this catalog. The inside back cover gives you standard attaching hardware torque values in foot-pounds and Newton-meters. Need the charge pressure? Page 73. But you have to use the right serial number range – this manual starts at S/N AC02528.

Torque Specifications: Why OEM Values Matter

Aftermarket torque charts are a gamble. This catalog prints Grade 8.8 fastener specs and includes a conversion factor: multiply Nm by 0.738 to get ft-lbs. Missing that factor by one decimal point snaps bolts. I have seen it happen on undercarriage parts. The Torque Specifications section gives you the factory number direct from Gehl.

What Does the 2008 GEHL 803 Parts Catalog Cover?

This is a Parts Catalog, not an operator manual. It covers every bolt, seal, hose, and cylinder with reference numbers. The table of contents organizes sections by assembly – engine, hydraulics, undercarriage, boom, and more. Each exploded view has a parts list with part numbers, descriptions, and quantities. If a component is part of a larger assembly, the reference number is circled. You also get seal kit indicators – a small bag icon means o-rings and seals are bundled.

3 Key Sections in This 224-Page Manual

1. Introduction & Abbreviations – Explains how to read the catalog, part numbering conventions, and fastener abbreviations (CS = cap screw, HB = hex bolt, etc.).
2. Alphabetical Index – Covers A through W. You can find a part by name, then cross-reference its figure number.
3. Torque Specifications – Inside back cover. Standard and metric torque values with conversion instructions.

Ignore the index and you will spend an hour hunting for a simple cap screw. Use the index and it takes thirty seconds.

For related machines, check the GEHL 753Z, 803 2011 Operators Manual – Factory Specs & Safety for operation details, or the GEHL SL4640, SL4840, SL5640, SL6640 2005 Parts Catalog for other Gehl models. The GEHL SL7610, SL7710, SL7810 2005 Parts Catalog – OEM Factory Specs also covers similar loader hydraulics.

Alphabetical Index: Finding Parts Without Guesswork

Flip to the Alphabetical Index (pages A through W). You type the part name – say “track roller” – and it tells you the figure number. Then go to that figure, find the reference number, and order the correct part. No more cross-referencing aftermarket catalogs that give you a “fits GEHL” but actually do not. The index is specific to the 803 Compact Excavator.

Serial number breaks are documented carefully. The manual uses notation like “(SN 999 and before)” and “(SN 1000 – 2000)”. If your machine has an exception – say serial 997 but not 1996 – it is listed. Do not ignore this. I have seen guys order a final drive seal for a pre-AC02528 machine and wonder why it leaks. Check the break.

Use the Alphabetical Index and Serial Number Breaks

When you open this PDF, look at the serial number on your machine (stamped on a panel in front of the cabin). Match it to the break in the catalog. Then use the index to find the part. That two-minute check saves a return trip to the dealer. The catalog also defines “right” and “left” from the operator’s seat – facing forward. Sounds obvious, but I have seen guys swap a left track motor for a right one because they stood in front of the machine. Get the orientation right.

Need background on how diesel engines work? Read this Wikipedia article on diesel engines for the theory. Or this Wikipedia article on diesel engines if you want a deeper dive on injection systems. The 803 uses a Yanmar diesel, and knowing the fundamentals helps when ordering parts.

Bottom line: if you own or work on a GEHL 803, get the factory parts catalog. It is 224 pages of data you can trust. No aftermarket reprint shortcuts. Download the Factory Manual now and keep it in your tablet or print it for the toolbox.

Is this the same as the operator's manual?

No. The operator manual covers operation; this covers parts and part numbers.

Does this catalog include torque specs for all fasteners?

Yes. Torque specifications are included on the inside back cover and referenced throughout. Standard attaching hardware torque values are provided, and metric values are shown in Newton-meters with a conversion factor to foot-pounds. The manual specifies Grade 8.8 for fasteners unless noted. Using aftermarket torque charts can lead to overtightening and thread damage. In addition, the manual includes specific torque values for critical components like the track system and boom assembly. Always cross-reference with the serial number break to ensure you're using the correct revision. Skipping this step is why I see snapped bolts in my shop.

Can I use this manual for the 2011 model?

Only if the serial number falls within the range AC02528 and up. Check your machine's serial number plate. The manual covers serial number breaks explicitly, so you can verify compatibility.

What format is the manual delivered in?

PDF download. Immediate access after purchase.