Chelsea PTO 437 Series Parts Manual
Model Number Designation
| Item | Part No. | Description | Qty | Notes | Price |
|---|
Bill of Materials 437 Series
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1P490 | Gear, Input Shaft, Idler | 1 | — | Call for availability | ||
| 5 | 14P15 | Spacers, Input Gear | A/R | $5.70 | Add to Cart | |
| 8 | 22P241 | Gasket, Bearing Cap (.010") | A/R | $2.30 | Add to Cart | |
| 22P242 | Gasket, Bearing Cap (.020") | A/R | $10.49 | Add to Cart | ||
| 22P243 | Gasket, Bearing Cap (.015") | A/R | $10.49 | Add to Cart | ||
| 10 | 35P8 | Gasket, Shifter Cover | 2 | $3.48 | Add to Cart | |
| 68P37 | Name Plate | 1 | — | Call for availability | ||
| 13 | 328274X | Bearing Cap Assembly | 1 | $64.09 | Add to Cart | |
| 14 | 378391 | Lockring | 2 | $2.47 | Add to Cart | |
| 15 | 378422 | Drive Screw | 2 | $11.52 | Add to Cart | |
| 16 | 37843010 | Capscrew, Hex Head (.312"-18 X 1 .000") | 4 | $1.76 | Add to Cart | |
| 17 | 3784527 | Set Screw (.250"-20 X .500") | 1 | $4.37 | Add to Cart | |
| 19 | 550397 | Bearing Cone | 1 | $36.75 | Add to Cart | |
| 20 | 550439 | Bearing Cone | 2 | $51.63 | Add to Cart | |
| 21 | 550532 | Bearing Cone | 1 | $36.75 | Add to Cart | |
| 560980 | Bearing Cup Cable Shift | 2 | — | Call for availability | ||
| 26 | 3291192X | Cable Shift Cover Assembly | 1 or | $176.78 | Add to Cart | |
| 29 | 3784309 | Capscrew, Hex Head (.312"-18 X .875") Air Shift | 4 | $1.76 | Add to Cart | |
| 33 | 3290363X | Air Shift Cover Assembly (3 &6) | 1 | — | Call for availability | |
| 36 | 3474309 | Capscrew, Hex Head .(312"-18 X .750") | 4 | — | Call for availability | |
| 3291655X | E-z Shift “xd” Output | — | Call for availability | |||
| 39 | 3P202 | Shaft, Output | 1 | $95.42 | Add to Cart | |
| 40 | 28P216 | Oil Seal | 1 | $21.40 | Add to Cart | |
| 41 | 328273X | Bearing Cap Assembly | 1 | $64.09 | Add to Cart | |
| 42 | 37843010 | Capscrew, Hex Head (.312"-18 X 1 .000") | 4 | $1.76 | Add to Cart | |
| 43 | 50000729 | Woodruff Key “xr” Output | 1 | $3.11 | Add to Cart | |
| 46 | 3P283 | Shaft, Output | 1 | $187.84 | Add to Cart | |
| 47 | 28P216 | Oil Seal | 1 | $21.40 | Add to Cart | |
| 48 | 329194X | Bearing Cap Assembly | 1 | $135.04 | Add to Cart | |
| 49 | 329673 | Shoulder Hex Screw (.312"-24) | 4 | — | Call for availability | |
| 50 | 379063 | Flat Washer Loose Parts | 4 | $2.70 | Add to Cart | |
| 328170141X | Stud Kit | 1 | — | No longer available — call for replacement | ||
| 3289486X | Installation Instructions | 1 | $24.01 | Add to Cart | ||
| 64 | 32834615X | Cable Control Assembly | 1 | $187.92 | Add to Cart | |
| 328380X | Cable Control Parts Bag | 1 | $13.25 | Add to Cart | ||
| 328751X | Indicator Light Installation Kit | 1 | $65.59 | Superseded by 3287511XAdd to Cart | ||
| 378978 | 12-V Indicator Light | 1 | $25.82 | Add to Cart | ||
| 378884 | 9-AMP Fuse Holder | 1 | $5.99 | Add to Cart | ||
| 379319 | Indicator Switch Boot | 1 | — | Call for availability | ||
| 32838837X | Air Shift Installation Kit | 1 | $367.41 | Add to Cart | ||
| 328711X | Installation Kit (“xr” Pump) | 1 | $14.26 | Add to Cart | ||
| 32916612X | Installation Kit (e-z Shift) A.r. As Required — | 1 | — | Call for availability |
P.t.o. Housing, Pump Flange & Shaft Dimensions Assembly “XR”
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 4000REF | 2.626 [66.70] 1 .312 13T Involute Spline [33.32] See Data .281 [7.14] Ø 2.753/2.751 [66.70] [69.93/69.88] .312-24 UNF-2B 49 50 4 Studs 48 Shaft Number Bearing Cap Assembly Oil Seal Pump | Flange | — | Call for availability | ||
| 328591106XRA | To Ga) | — | Call for availability | |||
| 328591107XRB | To Gb) | — | Call for availability | |||
| 328591116XXD | To Gh) 3-P-941X 328273X (rear) 28-P-268(Rear) | — | Call for availability | |||
| 328591114XRF | To Gh) 329264X (output) 28-P-219 (output) 21 | -P-626 | — | Call for availability |
Additional Parts Listed in This Manual
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 328591-72X | (xr To Ga) 329195X (output) 28-P-216 (output) 21-P-628 | $591.49 | Add to Cart | |||
| 328591-106X | (ra To Ga) | — | Call for availability | |||
| 328591-75X | (xr To Gb) 329195X (output) 28-P-216 (output) 21-P-572 | — | No longer available — call for replacement | |||
| 328591-107X | (rb To Gb) | $428.82 | Add to Cart | |||
| 328591-114X | (rf To Gh) 329264X (output) 28-P-219 (output) 21-P-626 | $592.43 | Add to Cart | |||
| 328591-55X | (xd To Ra) | $382.35 | Add to Cart | |||
| 328591-56X | (xd To Rb) | $382.35 | Add to Cart |
This is the complete factory parts breakdown for the Chelsea PTO 437 — every part in the manual, matched to our live inventory. We stock 36 of the 54 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 437 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.
| Models covered | 437 |
| PTO type | Chelsea 400 Series |
| Document | Illustrated Parts List (Chelsea) |
| Length | 12 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.