Description

GEHL 1275 Parts Catalog – The Only Parts List You Should Trust

If you’ve ever ordered a part for a GEHL 1275 forage harvester by guessing from a blurry online picture, you already know the outcome. A box shows up with the wrong bearing, the wrong bolt, or a bracket that doesn’t fit. That’s time on the phone with a supplier and a machine that stays down. This 100-page factory Parts Catalog ends that cycle. It’s the exact same document the dealers use — no aftermarket transcription, no re-drawn diagrams that miss a bolt. Every exploded view, every part number, every hardware grade comes straight from GEHL.

GEHL 1275 Parts Catalog: 100 Pages of Factory Diagrams

Splitting the machine into 33 sections, this catalog starts with decal locations on pages 2-7, frame and attachment lift on pages 8-9, tongue and driveline on pages 10-11, and the Cylinder & Cutting Mechanism on pages 12-15. After the knife sharpener (pages 16-19), you get attachment drive, feed roll drive frame, roll arm assemblies, and both left and right feed rolls. It continues through metal detector components, shrouding, blower, auger, crop processor drive, deflector, hydraulics, control box, and all the way through transmissions, optional axles, and accessories. That’s 100 pages of nothing but factory parts data.

Hydraulics and Control Box: Pages 50-55

Pages 50-51 cover the hydraulic system — hoses, fittings, cylinders. The Control Box section (pages 52-55) shows the mounting, wiring, and component layout. If you need to trace a wire or find a switch, this is where you look. The Metal Stop Amplifier Box on page 56 and Overload Switch on page 57 are also covered. Every component is keyed to a part number, so you order the exact piece instead of an educated guess.

Torque Specs and Fastener Grades – Inside Back Cover

The inside back cover lists standard hardware torque values in foot-pounds. That’s critical when you reassemble the cutterhead or any bolted joint. The manual also specifies that all cap screws are Grade 5, cadmium or zinc plated, unless noted. Hex nuts are Grade B for Grade 5 bolts. Using the wrong grade or torque can lead to joint failure at high RPM. Don’t guess — use the factory number.

3 Ways the Exploded Views Save You Time

1. You see every part in its exact position relative to the others. No more wondering if a spacer goes before or after the bearing. 2. Reference numbers tie directly to the parts list. One look and you know the OEM part number. 3. The numerical index (pages 87-96) lets you find a part by number if you have the old one. Cross-reference is built in.

Understanding the Metal Detector Components (Pages 32-33)

Pages 32-33 break down the metal detector assembly — sensor rolls, brackets, and wiring. If the detector isn’t triggering, you can identify the exact switch or harness part that failed. The exploded view shows how the detector mounts to the feed roll frame, so you can replace parts without pulling everything apart.

Does This Manual Include the Alphabetical and Numerical Indexes?

Yes. The alphabetical index on page 86 lists parts by name. The numerical index from page 87 to 96 lists every part number in the catalog. If you have a part number from a broken piece, look it up in the numerical index to find the page and reference number. That’s a direct route to the exploded view.

For more GEHL parts manuals, see GEHL SL4640, SL4840, SL5640, SL6640 2005 Parts Catalog and GEHL SL7610, SL7710, SL7810 2005 Parts Catalog – OEM Factory Specs. Another model you might work on is the GEHL RS6-34 2013 Parts Catalog – Factory OEM Manual.

When the 1275 is powered by a tractor, understanding the engine helps. Read this Wikipedia article on diesel engines for basics. For deeper technical details, this Wikipedia article on diesel engines covers the topic.

Frequently Asked Questions

Can I use this Parts Catalog to repair my 1275?

No. This is a parts catalog, not a service manual.

Are torque specifications included?

Standard hardware torque values are printed inside the back cover of this parts catalog. However, specific torque values for major components like the cylinder bolts or feed roll fasteners are not included in a parts catalog — those specs belong in the factory service manual. The inside back cover provides a general table for common bolt grades and sizes, covering Grade 5 and Grade 8 fasteners in inch-pound and foot-pound units. If you need a precise torque for a critical joint, you must consult the service manual or the factory technical data. This table is a good reference for standard attaching hardware but not a substitute for component-specific values.

How do I find a part number if I only have the old part?

Look on the old part for a stamped number. Then use the numerical index (pages 87-96) to find the page and reference number. If no number is visible, use the alphabetical index (page 86) to search by part name, like “bearing” or “shaft”.

What if I need a replacement tire for my 1275?

The manual states that replacement tires must be purchased locally — GEHL does not sell them. Wheel sets are available with tire size information. Check the wheel set listings in the optional axles and wheels sections (pages 78-79).

If you need to order a part for your GEHL 1275 and you want it right the first time, stop guessing. Access the Factory Manual and get the exact OEM part numbers, torque specs, and exploded views that the dealers use.