Chelsea PTO 420 Series Parts Manual
Model Number Designation
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| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1P195 | Housing-Standard Mount | 1 | Call for availability | |||
| 1P196 | Housing -Deep Mount | 1 | Call for availability | |||
| 3 | 550439 | Bearing Cone, Input | 2 | $51.63 | Add to Cart | |
| 328017X | Gear Spacer Kit, Input (Contains Item 4) | 1 | No longer available - Call for replacement | |||
| I14P151 | Gear Spacer Input ( .055") | 1 | Call for availability | |||
| 14P152 | Gear Spacer Input ( .06 0") | 1 | $5.50 | Add to Cart | ||
| 4 | 14P153 | Gear Spacer Input ( .065") | 1 | $5.50 | Add to Cart | |
| 14P154 | Gear Spacer Input ( .070") | 1 | Call for availability | |||
| 14P155 | Gear Spacer Input ( .075") | 1 | Call for availability | |||
| 5 | 9P60 | Idler Shaft , . | 1 | $61.76 | Add to Cart | |
| 3784527 | Set Screw-For Standard Mount (1/."' -20 X ½") | 1 | $4.37 | Add to Cart | ||
| 3784524 | Set Screw-For Deep Mount (¼" 20 X 5/16") | 1 | $3.26 | Add to Cart | ||
| 7 | 2P559 | Sliding Gear, Output (24 Teeth) | 1 | $224.47 | Add to Cart | |
| 8 | 378391 | Lock Ring | 2 | $2.47 | Add to Cart | |
| 9 | 3P202 | Drive Shaft Output (11/," Round) | 1 | $95.42 | Add to Cart | |
| 22P24222P241 | Bearing Cap Gasket ( .010") Bearing Cap Gasket ( .020") | A | Call for availability |
Chelsea®
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 11 | 550532 | Cone Closed End 1 | $36.75 | Add to Cart | ||
| 328274X | Cap Assembly Closed End (Contains Items 12 -13) 1 | $64.09 | Add to Cart | |||
| 12 | 550221 | Cup Closed End | $14.19 | Add to Cart | ||
| 13 | 21P131 | Cap Closed End N .S .S , . | $225.23 | Add to Cart | ||
| 14 | 550397 | Cone Output | $36.75 | Add to Cart | ||
| 328273X | 1 Cap Assembly Output (Contains Items 15-16) | $64.09 | Add to Cart | |||
| 15 | 550221 | Cup, Output | $14.19 | Add to Cart | ||
| 16 | 21P130 | Cap Output N .S .S. | $198.48 | Add to Cart | ||
| 17 | 28P52 | Output | Call for availability | |||
| 18 | 37843010 | 1 Hex Head (Eslock 5/16" 18 X 1 ") : 8 | $1.76 | Add to Cart | ||
| 3288152X | Shift Cover Assembly, 4 & 5 (Contains Items 19-28) 1 | Call for availability | ||||
| 19 | 34P74 | Cover 1 | $44.57 | Add to Cart | ||
| 20 | 37P19 | Spring | $2.04 | Add to Cart | ||
| 21 | 63P16 | 1 | $9.26 | Add to Cart | ||
| 22 | 28P49 | (¾" Outside Diameter) 1 | $3.59 | Add to Cart | ||
| 24 | 378004 | Washer (1 " Outside Diameter) : 1 | $2.01 | Add to Cart | ||
| 25 | 51P22 | Lever 1 | $12.57 | Add to Cart | ||
| 26 | 378003 | Washer (5 / 16") 1 | Call for availability | |||
| 27 | 5004096 | Hex Head (5/16" 24 X % ") 1 | $1.23 | Add to Cart | ||
| 28 | 378969 | Switch 1 | $31.23 | Add to Cart | ||
| 29 | 5A250 | Spacer · 1 | $138.39 | Add to Cart | ||
| 30 | 35P8 | Cover Gasket ( .020") 2 | $3.48 | Add to Cart | ||
| 31 | 37843010 | Hex Head (Estock 5/16" 18 X 1 ") 4 Parts | $1.76 | Add to Cart | ||
| 32 | 50000729 | Key 1 | $3.11 | Add to Cart | ||
| 32834610X | Cable Assembly (10X = 10 Foot Cable) 1 | $135.56 | Add to Cart | |||
| 328380X | Mounting Parts (Contains Items 33-38) 1 | $13.25 | Add to Cart | |||
| 33 | 50P17 | 1 | $5.47 | Add to Cart | ||
| 34 | 50P19 | Bracket 1 | $3.48 | Add to Cart | ||
| 35 | 5003968 | Hex Head (¼ " 20 X ¾") 1 | $1.17 | Add to Cart | ||
| 36 | 378326 | Hex (¼" 20) 1 | $2.22 | Add to Cart | ||
| 37 | 378019 | Pin 1 | $4.50 | Add to Cart | ||
| 38 | 5005684 | Screw (¼ " 20 X ½ ") 1 | $1.45 | Add to Cart | ||
| J35P91 | Housing ( .010 ") A.R | Call for availability |
Jo--So
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 3288311X | Lever Control Cover Assembly , Assembly 3 & 6 (Contains Items 40-50) | 1 | Call for availability | |||
| 3288312X | Lever Control Cover Assembly , Assembly 4 & 5 (Contains Items 40-50) | 1 | Call for availability | |||
| 40 | 34P87 | Shifter Cover | 1 | Call for availability | ||
| 41 | 28P4 | Oil Seal | 2 | Call for availability | ||
| 42 | 32P144 | Shifter Fork ' | 1 | $58.48 | Add to Cart | |
| 43 | 11P112 | Shifter Shaft | 1 | $51.93 | Add to Cart | |
| 44 | 3784474 | Screw, Hex Socket (S/ ,6" 18 X W') | 1 | $1.78 | Add to Cart | |
| 45 | 378002 | Shifter Ball | 1 | $1.63 | Add to Cart | |
| 46 | 37P14 | Shifter Spring | 1 | $3.46 | Add to Cart | |
| 47 | 378554 | Spring Cap | 1 | $12.41 | Add to Cart | |
| 48 | 5003813 | Jam Nut Hex Head | 1 | $1.10 | Add to Cart | |
| 36P1 | Eye Bolt | 1 | $56.02 | Add to Cart | ||
| 50 | 378969 | Indicator Switch | 1 | $31.23 | Add to Cart | |
| 51 | 3784308 | Screw, Hex Head (Eslock 5/ " 18 X ¾") | 4 | $2.06 | Add to Cart |
Chelsea® 420 Series
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 328648X | Holley Governor Drive Conversion Kit (Contains Items 67-73) 1 | Call for availability | ||||
| 328060X | Drive Shaft & Spinner Assembly (Contains Items 67-68) 1 | Call for availability | ||||
| 67 | 3P270 | Drive Shaft Standard 1 | Call for availability | |||
| 68 | 378178 | Spinner 1 | Call for availability | |||
| 69 | 28P53 | Oil Seal 1 | Call for availability | |||
| 70 | 378391 | Lock Ring 1 | $2.47 | Add to Cart | ||
| 22P241 | Bearing Cap Gasket (.010" ) 1 | $2.30 | Add to Cart | |||
| 22P242 | Bearing Cap Gasket ( .020 ") 1 | $10.49 | Add to Cart | |||
| 328588X | Bearing Cap Assembly (Contains Items 72-73) 1 | Call for availability | ||||
| 72 | 550221 | Bearing Cup 1 | $14.19 | Add to Cart | ||
| 73 | 21P272 | Bearing Cap N .S .S | Call for availability |
Chelsea® 420 Series
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 3P281 | Output Shaft, G Mounting | $224.42 | Add to Cart | |||
| 3P284 | Output Shaft, J/M Mounting | $289.72 | Add to Cart | |||
| 3P282 | Output Shaft, K/N Mounting | $187.84 | Superseded by 3P282XAdd to Cart | |||
| 3P283 | Output Shaft, L Mounting | $187.84 | Add to Cart | |||
| 328580X | Flange Assembly (Includes Pump Flange & 550221 Bearing Cup), G/J/L Mounting | $439.30 | Add to Cart | |||
| 328333X | Flange Assembly (Includes Pump Flange & 550221 Bearing Cup), K Mounting | $239.73 | Add to Cart | |||
| 328583X | Flange Assembly (Includes Pump Flange & 550221 Bearing Cup), M Mounting | Call for availability | ||||
| 328584X | Flange Assembly (Includes Pump Flange & 550221 Bearing Cup), N Mounting | Call for availability | ||||
| 328328X | Flange Assembly (Includes Pump Flange & 550221 Bearing Cup) | $318.47 | Add to Cart | |||
| 328589X | Flange Assembly (Includes Pump Flange & 550221 Bearing Cup) | $324.47 | Add to Cart | |||
| 328710X | Flange Assembly (Includes Pump Flange & 550221 Bearing Cup) | Call for availability | ||||
| 3784478 | Hex Socket Head Screw, G/J/L/N Mounting | 4 | $2.32 | Add to Cart | ||
| 3784477 | Hex Socket Head Screw, M Mounting | 4 | $5.55 | Add to Cart | ||
| 378918 | Stud | 4 | Call for availability | |||
| 32859110X | Conversion Kit, G Mounting | $174.50 | Add to Cart | |||
| 32859111X | Conversion Kit, J Mounting | $369.75 | Add to Cart | |||
| 32859116X | Conversion Kit, K Mounting | $357.11 | Add to Cart | |||
| 32859118X | Conversion Kit, L Mounting | Call for availability | ||||
| 32859120X | Conversion Kit, M Mounting | Call for availability | ||||
| 32859121X | Conversion Kit, N Mounting | Call for availability | ||||
| 32859123X | Conversion Kit | Call for availability | ||||
| 32859117X | Conversion Kit | $357.11 | Add to Cart | |||
| 32859125X | Conversion Kit | $260.80 | Superseded by 32859152XAdd to Cart | |||
| 28P52 | Oil Seal | Included in the conversion kits | Call for availability | |||
| 378391 | Lock Ring | Included in the conversion kits | $2.47 | Add to Cart | ||
| 22P241 | Gasket | Included in the conversion kits | $2.30 | Add to Cart | ||
| 22P242 | Gasket | Included in the conversion kits | $10.49 | Add to Cart | ||
| 21P166 | Pump Flange | Interferes with Air Shift Cylinder on Assembly Arrangement 3 & 5 use 'Q' Flange Assembly | Call for availability | |||
| 21P269 | Pump Flange | Interferes with Mounting Base on Deep Mount Assembly Arrangement 3 | $112.83 | Add to Cart | ||
| 328711X | Pump To P.T.O. Mounting Kit | Contains 4 each: 378919 Washer and 500963-1 Hex Locknut | $14.26 | Add to Cart | ||
| 378919 | Washer | 4 | Part of the 328711X kit | $1.97 | Add to Cart | |
| 5009631 | Hex Locknut | 4 | Part of the 328711X kit | No longer available - Call for replacement |
Additional Parts Listed in This Manual
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 328815-1X | Wire Shift Cover Assembly | Call for availability | ||||
| 328832-1X | Air Shift Cover Assembly | Call for availability | ||||
| 328832-2X | Air Shift Cover Assembly | Call for availability | ||||
| 34-P-76 | Shifter Cover | 1 | Call for availability | |||
| 11-P-122 | Shifter Shaft | 1 | Call for availability | |||
| 378462 | Spring Retainer Washer | 1 | $1.61 | Add to Cart | ||
| 66-P-4 | Piston | 1 | $9.22 | Add to Cart | ||
| 35-P-14 | Cylinder Cap Gasket | 1 | $2.88 | Add to Cart | ||
| 65-P-14 | Cylinder Cap | 1 | $120.90 | Add to Cart | ||
| 500118-3 | Pipe Plug (1/8" 27 N.P.T.) | 1 | Call for availability | |||
| 328160X | Pump Shaft & Spinner Assembly (Contains Items 74-75) | Call for availability | ||||
| 328097X | Pump Shaft & Spinner Assembly (Contains Items 74-75) | Call for availability | ||||
| 328096X | Pump Shaft & Spinner Assembly (Contains Items 74-75) | Call for availability | ||||
| 328743X | Pump Shaft & Spinner Ass Embly (Contains Items 74-75) | Call for availability | ||||
| 3-P-348 | Pump Shaft (For Pump Suffix G) | Call for availability | ||||
| 3-P-311 | Pump Shaft (For Pump Suffix J.M) | Call for availability | ||||
| 3-P-310 | Pump Shaft (For Pump Suffix K, N, P, Q) | Call for availability | ||||
| 378978 | 12-VOLT | $25.82 | Add to Cart | |||
| 21-P-166 | Pump Flange Interferes With | Call for availability | ||||
| 21-P-269 | Pump Flange Interferes With | $112.83 | Add to Cart | |||
| 328711X | Pump To P.T.O. Mounting | $14.26 | Add to Cart |
Gear Chart
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 5P600 | Input Gear, 18 Teeth, Pitch 6.100P 25° PA, Fits Clark 397-V Series | $479.52 | Add to Cart |
This is the complete factory parts breakdown for the Chelsea PTO 420, with every part in the manual matched to our live inventory. We stock 79 of the 129 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.
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This Chelsea Illustrated Parts List covering the 420 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.
| Models covered | 420 |
| PTO type | Chelsea 400 Series |
| Document | Illustrated Parts List (Chelsea) |
| Length | 11 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.