Chelsea PTO 901 Series Parts Manual
Parts List Bill of Materials 901 Series
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1P212 | Housing | $3,231.76 | Add to Cart | |||
| 2 | 2P250 | Gear Output 45T. | $1,279.11 | Add to Cart | ||
| 3 | 3P426 | Drive Shaft Output 1OT Straight | $1,651.07 | Add to Cart | ||
| 4 | 3P428 | Drive Shaft Output 1OT Straight | $1,043.25 | Add to Cart | ||
| 5 | 3P427 | Drive Shaft Output 1OT Straight. | 1 or | $641.50 | Add to Cart | |
| 6 | 5P626 | Gear Input 45T | $812.67 | Add to Cart | ||
| 7 | 21P185 | Cap Bearing (closed) | $388.43 | Add to Cart | ||
| 8 | 21P65 | Cap Bearing "ab" "ac" And "xv" | $358.46 | Add to Cart | ||
| 9 | 28P211 | Oil Seal 3 .001 " X 2 .000" X .375" | $35.18 | Add to Cart | ||
| 10 | 28P220 | Oil Seal 3 .355" X 2 .500" X .433" | 2 | $54.85 | Add to Cart | |
| 11 | 35P17 | Gasket Cover Plate | $9.52 | Add to Cart | ||
| 12 | 55P61 | Shim Gasket Bearing Cap ( .003") | A .R | $5.31 | Add to Cart | |
| 55P62 | Shim Gasket Bearing Cap ( .01 O") | A .R | $7.95 | Add to Cart | ||
| 13 | 55P19 | Shim Gasket | 2 | $12.09 | Add to Cart | |
| 14 | 68P51 | Plate Name | $2.14 | Add to Cart | ||
| 15 | 380503 | Companion Flange 141 O | $754.86 | Add to Cart | ||
| 16 | 413891 | Companion Flange | A .R. | — | Call for availability | |
| 378808 | Companion Flange | 1 | $1,127.74 | Add to Cart | ||
| 17 | 328050X | Speedo Bushing Assembly | $435.78 | Add to Cart | ||
| 18 | 328919X | Bearing Cover Assembly | $2,253.45 | Add to Cart | ||
| 19 | 378076 | Gear Spiral Drive 3T | $951.42 | Add to Cart | ||
| 20 | 378077 | Gear Speedo 14T | $792.84 | Add to Cart | ||
| 21 | 378151 | Spacer Speedo 2 .438" X 2 .625" X .630" | $50.79 | Add to Cart | ||
| 22 | 378156 | Lockring | $76.03 | Add to Cart | ||
| 23 | 378160 | Gasket | 2 | $28.88 | Add to Cart | |
| 24 | 378161 | Gasket | $27.32 | Add to Cart | ||
| 25 | 378162 | Nut 1 .375" 12 | 2 | $41.25 | Add to Cart | |
| 26 | 378163 | Nut 1 .125" -12 | $31.09 | Add to Cart | ||
| 27 | 378176 | Key 2 .000" X .250" X .250" | $30.84 | Add to Cart | ||
| 28 | 378309 | Gasket Speedometer. | $5.39 | Add to Cart | ||
| 29 | 378422 | Screw Drive | 2 | $11.52 | Add to Cart | |
| 30 | 378507 | Plug Magnetic Pipe .500" 14 | $7.90 | Add to Cart | ||
| 31 | 328984X | Assembly Sleeve Split Shaft | $183.73 | Add to Cart | ||
| 32 | 378512 | Cap Dust .875" 18 | 1 | $32.24 | Add to Cart | |
| 33 | 378513 | Valve Breather Assembly | $13.51 | Add to Cart | ||
| 34 | 37843114 | Capscrew Hh .375" 16 X 1 .500" | 8 | $24.22 | Add to Cart | |
| 35 | 37843314 | Capscrew Hh .500" 13 X 1 .500" Continued On Next | 8 | $3.89 | Add to Cart | |
| 36 | 378553 | Lockring Internal | 2 | $18.98 | Add to Cart | |
| 37 | 379064 | Plug Pipe | 3 | $26.63 | Add to Cart | |
| 38 | 550026 | Bearing Ball 1 .77" X 3 .937" X .9843" | $222.70 | Add to Cart | ||
| 39 | 550311 | Bearing Ball 1 .77" X 3 .346" X .748" | $81.15 | Add to Cart | ||
| 40 | 550508 | Needle Bearing Assembly. | 1 | $173.76 | Add to Cart | |
| 41 | 550509 | Bearing Ball 2 .3622" X 3.7402" X .7087" | $213.92 | Add to Cart | ||
| 42 | 560945 | Bearing Tapered Cone 1 .5005" X 1 .125" | 2 | $201.25 | Add to Cart | |
| 43 | 560946 | Bearing Tapered Cup 3 .751 " X .875" Service Kits | 2 | $48.05 | Add to Cart | |
| 328267 | Gasket And Seal Kit | — | Call for availability | |||
| 32839096X | Air Shift Field Conversion Kit | $2,500.31 | Add to Cart | |||
| 328502X | Governer Drive Kit | — | Call for availability | |||
| 328751X | Indicator Light Installation Kit (ship With Lever Control Unit) | 1 or | $65.59 | Superseded by 3287511XAdd to Cart | ||
| 32838861X | Air-o-matic Installation Kit (ship With Air Shift Unit) | 1 | $498.47 | Add to Cart | ||
| 32894810X | Gasket And Installation Instructions | 1 | $50.77 | Add to Cart |
Parts List Air Control 901 Series
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 328918X | Shifter Assembly | $2,412.91 | Add to Cart | |||
| 21P186 | Cover Shifter. | 1 | $1,301.24 | Add to Cart | ||
| 2 | 28P240 | O-ring .796" X .139" | 1 | $5.99 | Add to Cart | |
| 3 | 28P61 | O-ring 1 .359" X .139" | 2 | $7.18 | Add to Cart | |
| 4 | 28P71 | O-ring .674" X .103 " | 2 | $4.88 | Add to Cart | |
| 5 | 379234 | Cover Air Cylinder. | 1 | $707.50 | Add to Cart | |
| 6 | 35P16 | Gasket | $6.62 | Add to Cart | ||
| 7 | 65P5 | Cylinder Air Shifter. | $168.84 | Add to Cart | ||
| 8 | 66P6 | Piston Shifter | $94.92 | Add to Cart | ||
| 9 | 328917X | Ass'y Shifter Shaft | 1 | $354.21 | Add to Cart | |
| 11P141 | Shaft Shifter .81 " | 1 | — | Call for availability | ||
| 32P156 | Fork Shifter. | 1 | — | Call for availability | ||
| 10 | 37843130 | Capscrew Hh .375" 16 X 4.00" | 2 | $17.26 | Add to Cart | |
| 11 | 379045 | Breather .250" 18 | 1 | $47.21 | Add to Cart | |
| 12 | 378471 | Lockring. | 1 | $3.16 | Add to Cart | |
| 13 | 379639 | Switch Indicator 6-Bolt, A-bolt Normally Open | 1 | $25.03 | Add to Cart | |
| 14 | 5008975 | Plug Shipping. | 2 | — | Call for availability | |
| 328919X | Shifter Assembly | $2,253.45 | Add to Cart | |||
| 34P100 | Cover Bearing | $1,552.47 | Add to Cart | |||
| 2 | 28P218 | Oil Seal 1 .379" X .812" X .312" | 1 | $17.97 | Add to Cart | |
| 3 | 36P1 | Bolt Eye .375" 24 | 2 | $56.02 | Add to Cart | |
| 4 | 37P23 | Spring .425" X 1 .062" | 2 | $29.11 | Add to Cart | |
| 5 | 328916X | Ass'y Shifter Shaft | 1 | $766.80 | Add to Cart | |
| 6 | 378002 | Ball Shifter .437" | 1 | $1.63 | Add to Cart | |
| 7 | 5003813 | Hex Jamb Nut .375" 24 | 1 | $1.10 | Add to Cart | |
| 8 | 379652 | Switch Indicator. | 1 | $40.79 | Add to Cart |
Pump Assemblies 901 Series
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 46 | 3P327 | Shaft Output .875" 13T | — | Call for availability | ||
| 47 | 21P163 | Flange Pump "xk'' | $601.16 | Add to Cart | ||
| 48 | 28P212 | Oil Seal 2 .506" X 1 .750" X .315" | 1 | $24.02 | Add to Cart | |
| 49 | 378215 | Lockring | $10.84 | Add to Cart | ||
| 50 | 3784508 | Capscrew Sh .500" 13 X 1 .500" " | 4 | $9.01 | Add to Cart | |
| 51 | 560944 | Bearing Tapered Cone 1 .7505" X 1 .125" | $150.00 | Add to Cart | ||
| 52 | 3P300 | Shaft Output 1 .250" 14T | — | Call for availability |
Pump Assemblies 901 Series Pump Assembly "XS "
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 48 | 28P212 | Oil Seal 2 .506" X 1 .750" X .315" | 1 | $24.02 | Add to Cart | |
| 49 | 378215 | Lockring | 1 | $10.84 | Add to Cart | |
| 52 | 3P300 | Shaft Output 1 .250" 14T | — | Call for availability | ||
| 53 | 21P382 | Flange Pump "xs" And "xu " | $487.06 | Add to Cart | ||
| 54 | 379442 | Stud Shoulder Locking Patch .500" -13 X .500" 20 X 3 .750" | 4 | $53.51 | Add to Cart | |
| 55 | 50035610 | Washer Lock .575" X .319" X .056" | 4 | $1.53 | Add to Cart | |
| 56 | 5003815 | Hex Jamb Nut .500" 20 | 4 | $1.33 | Add to Cart |
Additional Parts Listed in This Manual
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 68-P-28 | Name Plate | $7.47 | Add to Cart | |||
| 328388-45X | Air Shift | $99.13 | Add to Cart | |||
| 329090-2X | Valve Kit | — | Call for availability | |||
| 328864X | Shifter Value | 1 | $270.35 | Add to Cart | ||
| 378414 | Pressure Protection Valve | 1 | $66.97 | Add to Cart | ||
| 379044-6 | Nylon Tubing | 1 | $41.17 | Add to Cart | ||
| 379130 | Support Bracket | 2 | $3.48 | Add to Cart | ||
| 379252 | Butt Connector | 2 | $2.30 | Add to Cart | ||
| 379640 | Electrical | 1 | $18.40 | Add to Cart | ||
| 379254-16 | Ring Connector | 1 | — | No longer available — call for replacement | ||
| 328946X | Caution Label Kit | 1 | — | No longer available — call for replacement | ||
| 379198-1 | Operational Decal | 1 | $3.21 | Add to Cart | ||
| 379624 | Warranty Card | 1 | $3.72 | Add to Cart |
This is the complete factory parts breakdown for the Chelsea PTO 901 — every part in the manual, matched to our live inventory. We stock 91 of the 104 parts above; click any part number to view it, or add it straight to your cart. Click a number on any diagram to jump to that part.
No parts match that search — try the part number with no dashes.
This Chelsea Illustrated Parts List covering the 901 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.
| Models covered | 901 |
| PTO type | Chelsea 900 Series |
| Document | Illustrated Parts List (Chelsea) |
| Length | 17 pages |
| Format | PDF — free download |
What’s inside
- Gear sets & output shaft assemblies
- Shifter & air-shift control kits
- Mounting gaskets & adapter plates
- Housings & cover assemblies
- Seal, bearing & snap-ring kits
- Application & ratio reference tables
- Exploded views with OEM part numbers
Chelsea parts & units we stock
Pro Gear and Transmission stocks new, remanufactured and good-used parts for Chelsea PTO units:
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.
Browse all Chelsea PTO parts — rebuild kits, seal kits, gears & shift covers — or shop complete Chelsea PTO units.