Description

GEHL 175, 250, 325, 425 Parts Catalog

You know the drill – you’ve got a spreader torn apart, the old part is shot, and you need the exact replacement. Aftermarket parts lists? They’re a guessing game. Wrong numbers, missing hardware, no torque calls. That’s why I keep the GEHL 175, 250, 325, 425 Parts Catalog within arm’s reach. This is the factory document – 80 pages of OEM part numbers, exploded views, and standard hardware torque specs on the inside back cover. No reprints, no guesswork.

Every time I hand a junior tech this catalog, I tell them: “Stop using third-party sites. Cross-reference from the source.” The GEHL 175, 250, 325, and 425 spreaders share common driveline components, but the devil is in the detail – different axle configurations, beater transmission ratios, and hydraulic drive controls. This manual sorts it out.

Transmission and Drive Components (Pages 12–29)

Transmission work on these spreaders isn’t complicated, but you need the right bearing and shaft numbers. The mechanical transmission section (pages 12-13) shows every gear and seal. Drive components (pages 28-29) cover the chains and sprockets. If you’re swapping a clutch, the clutch & drive section (pages 26-27) lists the disc and pressure plate part numbers. I’ve seen guys order the wrong throwout bearing because they didn’t have the serial number prefix – this catalog makes you check the model and serial before ordering.

For hydraulic drive controls (pages 20-25), the exploded diagrams show the valve stack and fittings. Don’t trust aftermarket diagrams on these – they often swap port locations.

Beater and Apron Transmissions – What’s Inside

The beater transmission (pages 38-41) and apron transmission (pages 42-45) are two separate gearboxes with different torque capacities. The 425 uses a heavier beater transmission than the 175 – the parts are not interchangeable. This catalog lists the specific gear sets, seals, and input shafts for each model. Page 38 identifies the beater transmission assembly with reference numbers that tie directly to the numerical index (pages 71-76). That index is pure gold when you have a part in your hand but no number.

Accessories and Kits – When You Need More Than Stock

Accessories fill pages 50-69: litter pan, manual trip package, upper beater kit, hydraulic endgate for the MS175, 250 & 325 (pages 60-61), and a separate hydraulic endgate for the MS425 (pages 64-65). The 1000 RPM kit (pages 66-67) is a common upgrade – this manual gives you the complete parts breakdown including the PTO shaft and gearbox adapter. Splashguard and safety chain kits are also listed. If you’re adding a second cylinder kit (pages 62-63), you need the exact hose lengths and fitting sizes – all called out here.

80 Pages of Factory Part Numbers

80 pages. No fluff, no advertisements, just schematics and part lists. The alphabetical index (page 70) and numerical index (pages 71-76) let you find any component in seconds. The inside back cover has standard hardware torque specifications – those are the same values GEHL used at the factory. Need the torque for a Grade 5 cap screw? It’s right there in foot-pounds. I can’t count how many times that inside cover has saved a stripped thread.

Every exploded view uses reference numbers with suffixes for variants. A teardrop symbol identifies wet parts (oil seals, grease fittings) and a hexagon symbol gives the torque value in foot-pounds. The abbreviations table (page 2) decodes every fastener code – CB (carriage bolt), FCS (flanged cap screw), LN (lock nut). No guesswork.

For background on how diesel engines power these spreaders, you can read this Wikipedia article on diesel engines and also check this Wikipedia article on diesel engines for operating principles.

Source Validity – OEM vs Aftermarket

This is the original GEHL Agriculture parts manual, Form No. 908042, replacing four earlier forms (904908, 904211, 904212, 904213). It’s printed in the USA. Aftermarket catalogs often merge parts across years and serial breaks – this one respects the left-hand/right-hand orientation from behind the spreader. The transmission and drive line are on the right. If you’re working on a 325 or 425, pay attention to the model-specific callouts in the frame & drawbar section (pages 6-9). The side sheets (pages 10-11) differ between the 175/250 and 325/425.

Related manuals for other GEHL equipment: GEHL SL4640, SL4840, SL5640, SL6640 2005 Parts Catalog, GEHL SL7610, SL7710, SL7810 2005 Parts Catalog – OEM Factory Specs, and GEHL RS6-34 2013 Parts Catalog – Factory OEM Manual.

Frequently Asked Questions

Does this parts catalog cover the mechanical clutch adjustment?

It covers the clutch & drive assembly parts (pages 26-27) with exploded views and part numbers, but not step-by-step adjustment procedures. This is a parts catalog, not a service manual.

What models are included?

GEHL 175, 250, 325, and 425 manure spreaders.

Where can I find the axle hardware specs?

Axles are on pages 34-37. The standard hardware torque table on the inside back cover applies. If you need the torque for a specific flange bolt, read the hexagon symbol next to the reference number in the exploded view.

Are the hydraulic motor part numbers the same across all models?

No. The hydraulic motor is page 49. The 425 uses a different displacement motor than the 175 and 250. Verify your model and serial number against the parts list. The 325 sometimes shares the 250 motor – check the reference number suffix.

Access the Factory Manual and keep it on your tablet or printed. When you’re up against a spreader that won’t spread, you need the right part number on the first order. This catalog gives you that.