Chelsea PTO 452 Series Parts Manual
This Chelsea Illustrated Parts List covering the 452 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.
| Models covered | 452 |
| PTO type | Chelsea 400 Series |
| Document | Illustrated Parts List (Chelsea) |
| Length | 12 pages |
| Format | PDF — view below or download free |
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
Read the manual
This is our interactive copy of the factory manual — part numbers are clickable and every exploded-view callout links to the part. Plain factory PDF if you prefer it.
Chelsea parts & units we stock
Pro Gear and Transmission stocks new, remanufactured and good-used parts for Chelsea PTO units:
Chelsea 452 parts list — every part number linked
This is the bill of materials from the manual above, matched against our own stock. Click any part number to see the listing and current price, or use ▶ Add to drop it straight in your cart. 41 of the 50 lines in this book are parts we carry.
Prices are shown on each product page so you always see the current one. Anything not linked, or marked no longer available, we can still usually source — call (877) 776-4600.
Prefer the book? Download the interactive PDF — same manual, with every part number and every exploded-view balloon clickable.
Bill of Materials — manual page 6
| Item | Part number | Description | Qty | Order |
|---|---|---|---|---|
| 1 | 1-P-520X | Housing, w/Roll Pin, Standard Mount | 1 | ▶ Add |
| 1-P-521X | Housing, w/Roll Pin, Deep Mount | 1 | ▶ Add | |
| 2 | 500597-14 | Roll Pin, Deep Mount | 1 | ▶ Add |
| 500597-16 | Roll Pin, Standard Mount | 1 | ▶ Add | |
| 4 | 5-P-1153 | Gear, Ratio | 1 | ▶ Add |
| 5 | 379522 | Retaining Ring | 1 | ▶ Add |
| 6 | 550439 | Cone Bearing, Input Gear | 2 | ▶ Add |
| 7 | 14-P-15 | Spacer, Input Gear A.R | ▶ Add | |
| 9-P-74 | Shaft, Input Idler Shaft | 1 | ▶ Add | |
| 9 | 28-P-191 | O-Ring | 1 | ▶ Add |
| 10 | 28-P-190 | O-Ring | 1 | ▶ Add |
| 11 | 379542 | Retainer, O-Ring | 1 | ▶ Add |
| 12 | 379484 | Plug, O-Ring Boss | 1 | ▶ Add |
| 13 | 328273X | Bearing Cap Assembly, Open End (Includes bearing cup) | 2 | ▶ Add |
| 14 | 550532 | Bearing Cone, Open End & Reverse Idler Shaft | 2 | ▶ Add |
| 15 | 378430-10 | Capscrew, Hex head (.3125"-18 x 1") | 16 | ▶ Add |
| 16 | 28-P-52 | Oil Seal, Output Shaft call to confirm availability | 2 | |
| 18 | 2-P-721 | Gear, Output | 1 | ▶ Add |
| 3-P-859 | Shaft, Standard Output 1.250" Rd | 2 | ▶ Add | |
| 20 | 500007-29 | Woodruff Key 2 | ▶ Add | |
| 21 | 378391 | Retaining Ring, Output Shaft | 4 | ▶ Add |
| 22 | 328274X | Bearing Cap Assembly, Closed End (Includes bearing cup) | 2 | ▶ Add |
| 23 | 550397 | Bearing Cone, Closed End, Output Shaft | 2 | ▶ Add |
| 328837X | Cable Shift Cover Assembly, Single Shift call to confirm availability | 1 | ||
| 24 | 500409-6 | Screw, Shifter Lever (.3125"-24 x .625") | 1 | ▶ Add |
| 25 | 500365-10 | Lockwasher call to confirm availability | 1 | |
| 26 | 500365-22 | Flat Washer | 1 | ▶ Add |
| 27 | 51-P-13 | Shift Lever | 1 | ▶ Add |
| 28 | 378004 | Washer, Shift Lever | 1 | ▶ Add |
| 29 | 379639 | Indicator Switch (Normally Off) no longer available — call for a replacement | 1 | |
| 30 | 34-P-74 | Cover, Shifter | 1 | ▶ Add |
| 31 | 37-P-14 | Popper Spring, Shifter | 1 | ▶ Add |
| 32 | 378002 | Ball, Shifter | 1 | ▶ Add |
Bill of Materials — manual page 7
| Item | Part number | Description | Qty | Order |
|---|---|---|---|---|
| 33 | 328836X | Plate & Post Assembly call to confirm availability | 1 | |
| 34 | 28-P-191 | O-Ring, Shifter Post | 1 | ▶ Add |
| 35 | 35-P-8 | Gasket, Shifter Cover | 1 | ▶ Add |
| 36 | 378430-8 | Capscrew, Hex Head (.3125"-18 x .750") | 3 | ▶ Add |
| 378430-9 | Capscrew, Hex Head (.3125"-18 x.875") | 1 | ▶ Add | |
| 37 | 68-P-2 | Name Plate | 1 | ▶ Add |
| 38 | 378422 | Drive Screw | 2 | ▶ Add |
| PARTS SHIPPED LOOSE | ||||
| 50-P-17 | Bracket, Cable Control | 1 | ▶ Add | |
| 50-P-19 | Bracket, Swivel | 1 | ▶ Add | |
| 378019 | Pin, Pivot | 1 | ▶ Add | |
| 378326 | Nut, Hex | 1 | ▶ Add | |
| 500396-8 | Capscrew, Hex Head (.250"-20 x .50") | 1 | ▶ Add | |
| 500568-4 | Setscrew (.250"-20 x .50") | 1 | ▶ Add | |
Parts list (page 8) — manual page 8
| Item | Part number | Description | Qty | Order |
|---|---|---|---|---|
| CM-4954 | & D, ES-52-5A & D Left Hand call to confirm availability | |||
| MPS-60B | ||||
| BDSL-2152 | Left Hand call to confirm availability | |||
| FS-3005A | & B & 4005 Left Hand call to confirm availability | |||
| FSO-8206A | Left Hand call to confirm availability | |||
Part numbers and descriptions are taken from the Chelsea/Parker parts manual on this page. Chelsea® and Parker® are trademarks of Parker Hannifin Corporation; Pro Gear and Transmission is an independent distributor.