Description

GEHL DL12, DL6, DL8, DL10 2008 Parts Catalog

If you are pulling a transmission out of a GEHL DL6 or rebuilding the boom on a DL10, the last thing you want is a part number that doesn’t match. I have seen a shop order the wrong seal kit for a DL8 because they trusted a third-party list. That mistake cost half a day. This 442-page GEHL DL12, DL6, DL8, DL10 2008 Parts Catalog is the exact document that came off the factory printer. It carries the same revision D, form 907878, that GEHL techs used in 2008. You get the numerical index, the locator reference, and the torque spec table on the inside back cover. No guessing where a bolt goes.

Torque Specs and Numerical Index

Standard attaching hardware torque values are printed on the inside back cover of this catalog. GEHL specifies Grade 5 cap screws for most fasteners, plated cadmium or zinc. The torque table covers common bolt sizes in foot-pounds, not some metric approximation. If you are torquing a hydraulic fitting or a boom pin, you look up the fastener size in the numerical index (page 4) and then verify the torque from the back cover. Skipping that step is how you strip threads on a $200 hub. The numerical index lists every part number alphabetically and by page location. You can find the exact fastener for a DL12 planetary without flipping through every section.

Locator Reference: Where Components Sit on the Machine

Page 2 of this catalog shows a locator reference drawing of the DL6, DL8, DL10, and DL12 Dynalift machines. It labels the attachment, operator station, transmission, hydraulics, axle, engine, boom, chassis, and transfer case. The drawing indicates left and right from behind the operator, facing forward. That orientation matters when you are ordering a left-hand boom pin. If you are swapping an engine on a DL8, the locator reference tells you immediately which section of the catalog to open. The boom section itself is split into inner boom, outer boom, and intermediate sections. For DL12 units built before December 2007, the engine group accounts for Tier 2 engines; after that date, Tier 3 engines are covered under a different parts manual (#913272). This catalog includes the earlier engine variants.

Does This Catalog Cover the DL12 with Tier 3 Engines?

Read the note on page 1 of the catalog. DL12 units with serial number 50513 and before, built after December 2007, are equipped with Tier 3 and newer engines. Those engine parts are not in this catalog. You need Parts Manual #913272 for that. This catalog covers DL6, DL8, DL10, and DL12 (SN 50513 and before) with the earlier engine configurations. If you have a DL12 with a serial number above 50513, or a newer engine, grab GEHL DL7 DL9 DL11 DL12 2010 Parts Catalog instead. The serial number is stamped on a plate inside the operator station and also on the top front frame. Check it before you order anything.

3 Reasons to Choose the Factory Parts Catalog Over Aftermarket

Reason 1: Aftermarket parts catalogs frequently reprint the wrong revision. This is form 907878 revision D from February 2008. I have seen third-party copies that omit the indented hardware list or mislabel the boom sections. Reason 2: The torque table on the inside back cover is missing from most aftermarket versions. Without that, you are torquing blind. Reason 3: The locator reference and numerical index are cross-referenced to the exact page numbers. Aftermarket reprints often shuffle pages and break those references. You waste time hunting for a part that is not where the index says it is. Do not trust a PDF that came from a forum. This is the OEM file.

Boom and Engine Section: How Parts Are Organized

The catalog is divided into groups: Boom, Engine, Transmission, Hydraulics, Axle, Chassis, and Operator Station. Each group starts with an exploded diagram. Below the diagram, part numbers are indented—hardware like cotter pins, set screws, and washers are listed under the component they fasten. If you see a bolt listed with an abbreviation for washers/nuts, that hardware is for mounting only; it is not included when you order the main part. The boom chapter covers the inner boom, outer boom, and intermediate sections. The engine chapter covers the diesel power units used in 2008. For background on how those diesel engines work, read this Wikipedia article on diesel engines. The catalog does not explain engine theory—it gives you part numbers and torques.

Who Needs This Catalog?

Home garage guys who keep a DL8 on their property. Small fleet owners with a DL10 and a DL6. Professional mechanics who need to quote a repair accurately. If you are rebuilding the hydraulic pump on a DL12, you look up the pump group, find the seal kit part number, and order it. That saves a trip to the dealer and a week of waiting for the wrong part. Beginners: this catalog is not a repair manual. You need the operator manual for procedures. Pair this parts catalog with GEHL DL7, DL9, DL11, DL12 2008 Operators Manual – Factory Specs to get the assembly steps. For later models, GEHL DL7, DL9, DL11, DL12 2011 Operators Manual – Factory Specs covers 2011 machines.

Frequently Asked Questions

Does this manual include torque values for attaching hardware?

Yes, on the inside back cover. Standard cap screw torque specs.

How do I find the correct part number for a DL10 boom cylinder?

Use the locator reference on page 2 to identify the boom section group, then flip to the boom chapter in the table of contents. Parts are listed in exploded view with indented hardware. You will see the cylinder with its part number, then below it the bolts, washers, and nuts with their own part numbers. Make sure you have your unit’s serial number because the DL12 had changes for Tier 3 after December 2007. The serial number plate is inside the operator station and also stamped on the top front frame. Cross-reference that with the numerical index. Do not grab the first part number you see; verify.

What is the difference between this parts catalog and an operator’s manual?

An operator manual tells you how to run the machine and perform basic maintenance. This parts catalog is for ordering replacement components. It has exploded diagrams, part numbers, and hardware lists. You need both if you are doing serious repairs.

Can I use this catalog for a DL6 from 2009?

This catalog covers DL6, DL8, DL10, and DL12 built in 2008. For 2009 models, check GEHL DL7, DL9, DL11, DL12 2011 Operators Manual – Factory Specs.

Torque specs matter. Part numbers matter. The difference between a Saturday job that finishes by noon and one that turns into a week-long headache is having the right OEM documentation on your bench. This catalog is 442 pages of factory-verified data for the GEHL DL6, DL8, DL10, and DL12. No reprints. No third-party errors. Access the Factory Manual now and keep your next repair on track.