Eaton Fuller FSO-4305 Parts Manual
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Eaton Fuller FSO-4305 Parts Manual, page by page
Every page of this manual is shown below in order, so you can read it right here without opening the PDF. Need a part you see on these pages? Call (877) 776-4600 or Ask an Expert with the page number and we will quote it.








This is the Eaton Fuller Illustrated Parts List covering the FSO-4305 transmission. Use it to identify every serviceable part in your unit (assemblies, gears, shafts, housings and seals) before you order replacements.
| Models covered | FSO-4305 |
| Transmission type | 5-speed, twin-countershaft, heavy duty |
| Document | Illustrated Parts List (Eaton Fuller) |
| Length | 11 pages |
| Format | PDF, free download |
What’s inside
- Service kits & assemblies with recommended stocking quantities
- Mainshaft & countershaft gear groups
- Drive gears, idler & auxiliary drive gears
- Case, clutch & shift-bar housings
- Shift lever, forks & selector assemblies
- Bearings, seals, snap rings & small parts
- Air-shift and range-control components (where fitted)
- Exploded parts diagrams with OEM part numbers
Eaton Fuller parts & units we stock
Pro Gear and Transmission stocks new, remanufactured and good-used parts for Eaton Fuller transmission units:
- All Eaton Fuller transmission parts & units
- Remanufactured transmissions
- Search our catalog for FSO-4305
Not sure exactly which unit you have? Check our identification guides, or Ask an Expert. Send us photos of your data tag and our drivetrain specialists will identify the unit and the exact parts you need. Or call (877) 776-4600.