Description

GEHL RS6, RS8 2008 Parts Catalog

If you’ve ever ordered a part for a GEHL RS6 or RS8 telescopic handler from a third-party parts list and ended up with the wrong component, you know the cost of that mistake. Lost time, wrong thread pitch, missed serial number range. That’s why you need the actual factory GEHL RS6, RS8 2008 Parts Catalog – the one printed in December 2008 under Form No. 908492 Revision B. 158 pages of OEM part numbers, torque values, and filter references that aftermarket reprints always get wrong.

This is not a glossy coffee-table book. It’s the same manual a GEHL dealer parts counter uses. When you open it, you’ll find a numerical index, an alphabetical index that covers everything from “A ~ B” through “W ~”, and a dedicated Torque Specifications section. Serial number breakdown is on page 1 – that’s where you verify year, month, and unit number so you don’t order an RS8 part for an RS6. The catalog explicitly explains left, right, front, and rear from operator’s perspective. Small detail that matters when you’re chasing a hydraulic line.

Torque Specifications: The Last Page You’ll Need

Standard attaching hardware torque values live on the inside back cover – page 158 in this 158-page document. Unless otherwise specified, all cap screws are Grade 5, cadmium or zinc plated; hexagon nuts for Grade 5 cap screws and bolts are Grade 5. You need those numbers when you’re bolting a boom pivot bracket or a drive motor flange. Aftermarket parts lists will give you generic torque charts. This catalog gives you the exact specs for the RS6/RS8 hardware. Tighten to those values, and you won’t be chasing stripped threads later.

One warning: the catalog lists common attaching hardware like cotter pins, set screws, and woodruff keys indented below the parent part. Those items are NOT illustrated in the exploded views unless a special routing or fastening arrangement is required. Read the indent list carefully before you order – I’ve seen a guy order a complete hydraulic pump because he missed the woodruff key that was indented. Page 2 explains this convention. Save yourself the phone call.

Filter Reference and Fluid Capacities

Page 3 of the catalog has the filter reference chart that covers engine oil, fuel, engine air, transmission oil, and hydraulic oil. Each row lists the part number for both mechanical throttle and electronic throttle models. For example, engine oil filter part numbers differ depending on whether you have the older mechanical pedal or the later TIER II electronic throttle. The chart spells it out: L99420 for mechanical, 102173 for electronic. It even notes that units with electronic throttle need dust seal P/N 102742 as needed. That level of detail keeps you from cross-referencing three different catalogs. this Wikipedia article on diesel engines goes into the technical background of the engines used here, but the manual itself tells you exactly which filter goes where.

RS6 and RS8: What Each Section Covers

The catalog covers both RS6 and RS8 models in the same binder. The Table of Contents (pages 1-3) maps out component groups. You’ll find sections for Operator’s Station Cab, boom assembly, drivetrain, hydraulic system, and electrical components. Each section starts with an exploded view and then a parts list with full descriptions. When ordering, you must specify the correct part number, full description, quantity required, and the unit model and serial number – that’s straight from the introduction on page 1. The serial number plate is located inside the operator’s station and also stamped on the top front frame. The format is easy: Model, Year (U=03, V=04, etc.), Month, Unit Number. That format lets you pin down exactly which variant you’ve got.

Alphabetical Index: Why It Matters

This catalog has a full alphabetical index from A through W, spread over several pages. That’s your shortcut when you don’t know the part number but you know the name. “Boom cylinder” – look under Brac ~ Cyl. “Hydraulic pump” – look under Hoo ~ L. The index entries are specific to the RS6/RS8, not generic. Contrast that with aftermarket websites that give you a one-line description and hope you guess right. The index points you to the exact page within this 158-page document where the part appears. Use it – it saves flipping through every section.

Source Validity: GEHL Factory vs Aftermarket

This is Form No. 908492 Revision B, printed December 2008 by GEHL in the USA. That matters because aftermarket parts catalogs frequently reprint images from earlier revisions and miss updates. For example, the catalog specifically calls out the difference between mechanical throttle and electronic throttle (TIER II) engines. A generic reprint might show only one type. This manual also includes the statement that GEHL Company reserves the right to make design changes without obligation to install on previously delivered units. That’s factory legal language – you know it’s authentic. When you need to order a part that changed mid-production, you want the revision that matches your serial number. This one does. For related factory manuals, check out the GEHL SL4640, SL4840, SL5640, SL6640 2005 Parts Catalog or the GEHL SL7610, SL7710, SL7810 2005 Parts Catalog – OEM Factory Specs and GEHL RS6-34 2013 Parts Catalog – Factory OEM Manual.

FAQ – 4 Questions About This Parts Catalog

Can I use this catalog for the RS8-34 model?

No. This catalog covers the RS6 and RS8 base models. The RS6-34 is a different variant and has its own parts manual.

Does it include torque specs for wheel lugs?

Standard attaching hardware torque values are on page 158. Wheel lug nuts are attaching hardware – use those values unless the manual specifies differently in a note. They’re Grade 5 equivalent fasteners. Tighten to spec.

What is the difference between mechanical and electronic throttle models in the catalog?

The catalog has separate filter part numbers for each. On page 3, engine oil filter L99420 is for mechanical throttle; 102173 is for electronic. Fuel filter L98978 for mechanical, 102174 for electronic. The unit’s serial number breakdown tells you the year (U=03, V=04, etc.), but the throttle type is identified by the pedal – the manual shows a picture of both pedals. If your unit has an electronic throttle, you need the corresponding parts. The catalog also notes that electronic-throttle units meet Tier II requirements and use a different throttle pedal design.

How do I find a specific part number quickly?

Use the alphabetical index at the front (multiple pages from A through W). Find the component name, then check the page number listed. Every page number in this catalog is real, not auto-generated. Cross-reference with the numerical index if you already have a number. this Wikipedia article on diesel engines explains the engine platform, but for parts lookup stick to this manual’s index.

When you need to order parts for a GEHL RS6 or RS8 telescopic handler, the cost of a wrong part is your time and your customer’s downtime. Factory documentation eliminates that guesswork. Access the Factory Manual from AutoRepairManuals and keep it on your tablet or printed at the parts counter. Every torque spec, part number, and filter reference is verified against the original 2008 GEHL print.