Chelsea PTO 859 Series Parts Manual
Model Number Designation
| Item | Part No. | Description | Qty | Notes | Price |
|---|
Power Take-Off Bill of Materials 859 Series
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1P609X | Pto Housing | 1 | $2,401.66 | Add to Cart | ||
| 4P162 | Spacer "xv" Output | $52.22 | Add to Cart | |||
| 9 | 9P92 | Idler Shaft (pressure Lube) | 1 | — | Call for availability | |
| 10 | 14P801 | Tabbed Washer (.110"-.112") | 1 or | $15.00 | Add to Cart | |
| 14P802 | Tabbed Washer (.115"-.117") | 1 or | $15.00 | Add to Cart | ||
| 14P803 | Tabbed Washer (.120"-.122") | 1 or | $15.00 | Add to Cart | ||
| 14P804 | Tabbed Washer (.124"-.126") Bearing Cap | 1 | $15.00 | Add to Cart | ||
| 21P517 | Bearing Cap ("xv" Output) | $492.66 | Add to Cart | |||
| 12 | 22P112 | Gasket, Valve Cap Oil Seal | 1 | $20.18 | Add to Cart | |
| 28P211 | Oil Seal ("xv" Output) | $35.18 | Add to Cart | |||
| 15 | 31P94 | Thrust Washer | 1 | $18.15 | Add to Cart | |
| 16 | 28P196 | O-ring | 1 | $60.36 | Add to Cart | |
| 17 | 28P198 | O-ring | 1 | $7.10 | Add to Cart | |
| 18 | 31P92 | Thrust Washer | 2 | $19.07 | Add to Cart | |
| 20 | 55P201 | Shim Bearing Cap (.003 Green) | A.R. | $5.92 | Add to Cart | |
| 55P202 | Shim Bearing Cap ( .010 Brown) | $7.74 | Add to Cart | |||
| 55P203 | Shim Bearing Cap (.020 Yellow) | $17.66 | Add to Cart | |||
| 22 | 68P2 | Name Plate | 1 | $2.65 | Add to Cart | |
| 24 | 329252X | Seal Cap Assembly ("g " & "h " Shift Only) | 1 | — | No longer available — call for replacement | |
| 26 | 32935212X | Valve & Valve Cap Assembly (12V) | 1 or | $591.82 | Add to Cart | |
| 32935224X | Valve & Valve Cap Assembly (24V) | 1 or | $531.73 | Add to Cart | ||
| 32944212X | Valve & Valve Cap Assembly ( 12V) ("kv" Pitch Only) | 1 or | $838.17 | Add to Cart | ||
| 32944224X | Valve & Valve Cap Assembly (24V) ("kv" Pitch Only) Drive Shaft & Clutch Ass'y | 1 | $1,403.57 | Add to Cart | ||
| 3296471X | Drive Shaft & Clutch Ass'y (3-P-1024) ("ab " "ac", "xv" Output) | $2,282.63 | Add to Cart | |||
| 39 | 378382 | Hex Locknut ("xv", "ab " "ac" Only) | 1 | $60.21 | Add to Cart | |
| 40 | 378422 | Drive Screw | 2 | $11.52 | Add to Cart | |
| 41 | 37843111 | Hex Capscrew .375"-16 X 1 .125" | 4 | $2.01 | Add to Cart | |
| 42 | 3784476 | Soc Capscrew .312"-18 X 1 .000" | 3 | $4.33 | Add to Cart | |
| 45 | 378856 | Wiggler Wire | 1 | $1.05 | Add to Cart | |
| 46 | 379231 | Pipe Plug .125"-27 Nptf (without E .o.c. Only) | 1 | $1.50 | Add to Cart | |
| 47 | 379242 | O-ring Boss Plug | 1 | $22.23 | Add to Cart | |
| 50 | 28P171 | O-ring (with E.o.c. Only) | 1 | $4.88 | Add to Cart | |
| 51 | 379243 | Speed Sensor | 1 | $229.65 | Add to Cart | |
| 53 | 379719 | Nwd Plug | 1 | $42.60 | Add to Cart | |
| 54 | 379486 | 90° Elbow, O-ring Boss | 1 | $28.97 | Add to Cart | |
| 61 | 379511 | Lockring (5160-200) Companion Flange | 1 | $5.91 | Add to Cart | |
| 313431 | Companion Flange ("xv" Output) | — | Call for availability | |||
| 67 | 5008973 | Shipping Plug | 1 | — | No longer available — call for replacement | |
| 68 | 3795642 | Shipping Cap ("g" & "h" Shift Qty. 3) | 3 | $1.23 | Add to Cart | |
| 70 | 560975 | Caged Roller Bearing | 2 | $176.63 | Add to Cart | |
| 73 | 560978 | Tapered Bearing Cone | 2 | $71.02 | Add to Cart | |
| 74 | 560982 | Tapered Bearing Cup | 1 | $19.83 | Add to Cart | |
| 75 | 560986 | Tapered Bearing Cone Tapered Bearing Cup | 1 | $31.81 | Add to Cart | |
| 560982 | Tapered Bearing Cup ("xv" Output) | $19.83 | Add to Cart | |||
| 560986 | Tapered Bearing Cone ("xv" Output) | $31.81 | Add to Cart | |||
| 717086X | Mounting Kit ("fj" Input) | 1 | $84.46 | Add to Cart | ||
| 7170118X | Mounting Kit ("kv" Input) | 1 | $70.57 | Add to Cart | ||
| 3289489X | Gasket & Installation Instructions | 1 | $42.19 | Add to Cart | ||
| 3291411X | Hose Assembly | 1 | $156.32 | Add to Cart | ||
| 3291301X | Hose Assembly (remote Valve Option Only) | 1 | $87.33 | Add to Cart | ||
| 328075X | Hose Assembly (remote Valve Option Only) | 1 | $150.56 | Add to Cart | ||
| 32892412X | Control Box 12V (with E.o.c.) | 1 or | $1,358.05 | Add to Cart | ||
| 32892424X | Control Box 24V (with E.o.c.) Installation Kit Allison | 1 | — | Call for availability | ||
| 32902412X | Installation Kit 12V W/o E.o.c | 1 or | $272.23 | Add to Cart | ||
| 32902424X | Installation Kit 24V W/o E.o.c | 1 or | $304.69 | Add to Cart | ||
| 329076X | Installation Kit 12V & 24V (with E.o.c.) | 1 or | $152.30 | Add to Cart | ||
| 32923712X | Installation Kit 12V Remote Valve | 1 or | $763.42 | Add to Cart | ||
| 32923724X | Installation Kit 24V Remote Valve Caterpillar | 1 | $763.42 | Add to Cart | ||
| 32944312X | Installation Kit 12V | 1 or | $320.03 | Add to Cart | ||
| 32944324X | Installation Kit 24V | 1 or | $291.36 | Add to Cart | ||
| 329444X | Installation Kit 12 & 24 Volt (with E.o.c.) | 1 or | — | No longer available — call for replacement | ||
| 32944512X | Installation Kit 12V Remote Valve | 1 or | $904.45 | Add to Cart | ||
| 32944524X | Installation Kit 24V Remote Valve Service Kits | 1 or | $1,555.39 | Add to Cart | ||
| 32907120X | Gasket And Seal Kit | $272.99 | Add to Cart | |||
| 32907137X | Bearing Kit | $689.04 | Add to Cart | |||
| 3290718X | Clutch Repair Kit | $1,754.40 | Add to Cart | |||
| 32917512X | Conversion Kit 12V Remote Valve | $1,568.56 | Add to Cart | |||
| 32944712X | Kit, Remote Valve Conversion 12V ("kv" Input) | — | Call for availability | |||
| 32944724X | Kit, Remote Valve Conversion 24V ("kv" Input) | — | No longer available — call for replacement | |||
| 32917524X | E.o.c. Field Conversion Kit 24V | $675.81 | Add to Cart | |||
| 32924012X | Conversion Kit 12V Remote Mount Valve | $1,119.29 | Add to Cart | |||
| 32924024X | Conversion Kit 24V Remote Mount Valve | — | No longer available — call for replacement |
T Loutput
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| G2443 | 5 Gear Forward Shaft = | Rear | — | Call for availability | ||
| J2641 | Bulge Up Right Side | — | Call for availability | |||
| M2839 | Bulge Down Left Side | — | Call for availability | |||
| S3234 | _____ Shifter Type | — | Call for availability | |||
| T3436 | B 12V Hydraulic = | — | Call for availability |
Hose Chart Caterpillar
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 5P1160 | RH 50/24 2-P-752 | 43 | $1,150.61 | Add to Cart | ||
| 5P1394 | RH 50/26 2-P-827 | 41 | $1,521.71 | Add to Cart | ||
| 5P1161 | RH 50/28 2-P-753 | 39 | — | No longer available — call for replacement | ||
| 5P1162 | RH 50/31 2-P-754 | 36 | $1,150.61 | Add to Cart | ||
| 5P1392 | RH 50/32 2-P-826 | 34 | $2,408.31 | Add to Cart | ||
| 5P1212 | RH 50/34 2-P-764 | 33 | $698.81 | Add to Cart | ||
| 5P1309 | RH 50/35 2-P-796 | 28 | — | Call for availability | ||
| 5P1360 | LH 45/24 2-P-752 | 43 | — | No longer available — call for replacement | ||
| 5P1397 | LH 45/26 2-P-827 | 41 | — | Call for availability | ||
| 5P1398 | LH 45/28 2-P-753 | 39 | $471.04 | Add to Cart | ||
| 5P1399 | LH 45/31 2-P-754 | 36 | — | Call for availability | ||
| 5P1400 | LH 45/32 2-P-826 | 34 | — | Call for availability |
Pump Conversion Kits 859 Series Flange Bill of Materials
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 4P162 | Spacer | 1 | $52.22 | Add to Cart | ||
| 21P517 | Bearing Cap | 1 | $492.66 | Add to Cart | ||
| 28P211 | Oil Seal | 1 | $35.18 | Add to Cart | ||
| 3296471X | Drive Shaft Assembly | 1 | $2,282.63 | Add to Cart | ||
| 3P1024 | Output Shaft | 1 | — | Call for availability | ||
| 28P194 | O-ring | 2 | $12.24 | Add to Cart | ||
| 28P260 | O-ring | 1 | $56.79 | Add to Cart | ||
| 37P24 | Spmng | 1 | $12.29 | Add to Cart | ||
| 3795311 | Piston | 1 | $852.31 | Add to Cart | ||
| 3795231 | Back-up Cyclinder | 1 | $1,174.47 | Add to Cart | ||
| 2P844 | Inner Clutch Gear | 1 | $108.04 | Add to Cart | ||
| 379776 | Clutch Plate (steel) | 7 | $17.85 | Add to Cart | ||
| 379489 | Clutch Plate (friction) | 8 | $17.94 | Add to Cart | ||
| 379465 | Lockring | 1 | $2.57 | Add to Cart | ||
| 380080 | Lockring | 1 | $3.98 | Add to Cart | ||
| 37843111 | Hex Cap Screw (.375"-16 X 1 .125") | 4 | $2.01 | Add to Cart | ||
| 378382 | Hex Locknut | 1 | $60.21 | Add to Cart | ||
| 379558 | Companion Flange | 1 | $698.00 | Add to Cart | ||
| 560982 | Bearing Cup | 1 | $19.83 | Add to Cart | ||
| 560986 | Bearing Cone | 1 | $31.81 | Add to Cart |
Flange Bill of Materials 859 Series
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 379742 | Companion Flange | 1 | $1,076.21 | Add to Cart | ||
| 560982 | Bearing Cup | 1 | $19.83 | Add to Cart | ||
| 560986 | Bearing Cone | 1 | $31.81 | Add to Cart | ||
| 4P161 | Spacer | 1 | $52.22 | Add to Cart | ||
| 21P539 | Bearing Cap | 1 | $697.39 | Add to Cart | ||
| 28P219 | Oil Seal | 1 | $28.20 | Add to Cart | ||
| 3296472X | Drive Shaft Assembly | 1 | $2,282.63 | Add to Cart | ||
| 3P1025 | Output Shaft | 1 | $965.35 | Add to Cart | ||
| 28P194 | 0-Ring | 2 | $12.24 | Add to Cart | ||
| 28P260 | 0-Ring | 1 | $56.79 | Add to Cart | ||
| 37P24 | Spring | 1 | $12.29 | Add to Cart | ||
| 3795311 | Piston | 1 | $852.31 | Add to Cart | ||
| 3795231 | Back-up Cyclinder | 1 | $1,174.47 | Add to Cart | ||
| 2P844 | Inner Clutch Gear | 1 | $108.04 | Add to Cart | ||
| 379776 | Clutch Plate (steel) | 7 | $17.85 | Add to Cart | ||
| 379489 | Clutch Plate (friction) | 8 | $17.94 | Add to Cart | ||
| 379465 | Lockring | 1 | $2.57 | Add to Cart | ||
| 380080 | Lockring | 1 | $3.98 | Add to Cart | ||
| 37843111 | Hex Cap Screw (.375"-16 X 1 .125") | 4 | $2.01 | Add to Cart | ||
| 560977 | Bearing Cup | 1 | $14.27 | Add to Cart | ||
| 560976 | Bearing Cone | 1 | $29.24 | Add to Cart | ||
| 21P515 | Bearing Cap | 1 or | $690.71 | Add to Cart | ||
| 21P544 | Bearing Cap (wet Spline) | 1 | $683.71 | Add to Cart | ||
| 379231 | Pipe Plug (wet Spline) | 1 | $1.50 | Add to Cart | ||
| 5609N | Bearing Cup | 1 | — | Call for availability | ||
| 4P182 | Spacer | 1 | — | No longer available — call for replacement | ||
| 21P615 | Bearing Cap | 1 | $743.11 | Add to Cart | ||
| 28P275 | Oil Seal | 1 | $37.46 | Add to Cart | ||
| 3296473X | Drive Shaft Assembly | 1 | — | No longer available — call for replacement | ||
| 3P1026 | Output Shaft | 1 | $1,119.59 | Add to Cart | ||
| 550258 | Bearing Cup | 1 | $12.80 | Add to Cart | ||
| 550257 | Bearing Cone Continued | 1 | $25.84 | Add to Cart |
Flange -=i-- Bill of Materials 859 Series
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 379560 | Spline Coupling | 1 | — | No longer available — call for replacement | ||
| 378898 | Flat Head Socket Screw (.438"-14 X 1 .000") | 1 | $18.69 | Add to Cart | ||
| 379231 | Pipe Plug (.125"-27) 118 -r 108 148 Description | 1 | $1.50 | Add to Cart | ||
| 1B | 378382 | Hex Lock Nut | 1 | $60.21 | Add to Cart | |
| 28 | 313431 | Companion Flange (1410 Series) | 1 or | — | Call for availability | |
| 379742 | Companion Flange (DIN100) | 1 or | $1,076.21 | Add to Cart | ||
| 379558 | Companion Flange (DIN120) | 1 | $698.00 | Add to Cart | ||
| 3B | 28P211 | Oil Seal | 1 | $35.18 | Add to Cart | |
| 4B | 37843126 | Hex Capscrew 3.75"-16 X 1 .125" | 4 | $9.26 | Add to Cart | |
| 58 | 21P517 | Bearing Cap | 1 | $492.66 | Add to Cart | |
| 6B | 55P201 | Bearing Cap Shim (.003 Green) | A.R. | $5.92 | Add to Cart | |
| 55P202 | Bearing Cap Shim (.010 Brown) | $7.74 | Add to Cart | |||
| 55P203 | Bearing Cap Shim (.020 Yellow) | $17.66 | Add to Cart | |||
| 7B | 560982 | Bearing Cap | 1 | $19.83 | Add to Cart | |
| 88 | 560986 | Bearing Cone | 1 | $31.81 | Add to Cart | |
| 9B | 379746 | Lock Ring | 1 | $5.06 | Add to Cart | |
| 108 | 31P70 | Spacer | 1 | $13.66 | Add to Cart | |
| 118 | 66P50 | Piston | 1 | — | Call for availability | |
| 128 | 28P252 | O-ring | 1 | $14.67 | Add to Cart | |
| 138 | 28P196 | O-ring | 1 | $60.36 | Add to Cart | |
| 14B | 23P71 | Bearing Cap Spacer | 1 | $201.65 | Add to Cart | |
| 158 | 380007 | Brake Disc | 1 | — | No longer available — call for replacement | |
| 168 | 37P60 | Spring | 1 | $36.98 | Add to Cart | |
| 178 | 379977 | Pin | 1 | $3.85 | Add to Cart | |
| 188 | 31P116 | Thrust Washer | 1 | — | Call for availability | |
| 208 | 22P98 | Gasket | 1 | $9.45 | Add to Cart |
Drive Shaft & Clutch Assembly 859 Series
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 3P1024 | Shaft, Output 10T Straight ("ab", "ac", "xv'') (329647-1X) | 1 or | — | Call for availability | ||
| 3P1025 | Shaft, Output 10T Straight 1 -1/4 T. ("az', "xs") (329647-2X) | 1 or | $965.35 | Add to Cart | ||
| 3P1026 | Shaft, Output 10T Straight 10T. Straight ("xy") (329647-3X) | 1 or | $1,119.59 | Add to Cart | ||
| 3P1027 | Shaft, Output 10T Straight 10T. Straight ("ba", "bb", "bc") (329647-4X) | 1 | — | Call for availability | ||
| 2 | 28P194 | O-ring (1 .424" X .103") ("ba", "bb", "bc") (all Others) | 4 | $12.24 | Add to Cart | |
| 3 | 28P260 | O-ring (4.984" X .139") | 1 | $56.79 | Add to Cart | |
| 4 | 3795231 | Cylinder Clutch Back-up | 1 | $1,174.47 | Add to Cart | |
| 5 | 3795311 | Piston Clutch | 1 | $852.31 | Add to Cart | |
| 6 | 379489 | Disc Friction | 8 | $17.94 | Add to Cart | |
| 7 | 379776 | Plate Clutch | 7 | $17.85 | Add to Cart | |
| 8 | 379465 | Lockring | 1 | $2.57 | Add to Cart | |
| 9 | 380080 | Lockring | 1 | $3.98 | Add to Cart | |
| 10 | 2P844 | Gear, Clutch Inner | 1 | $108.04 | Add to Cart | |
| 11 | 37P24 | Spring (2.531 " X 2.13") | 1 | $12.29 | Add to Cart |
1111� -
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 79486 | R--�-�,, 90° Fitting '--�--f---� 'i Install In Transmission | — | Call for availability | |||
| 379812 | Connector / Red Wire _�) Valve Exhaust I � Remote Valve Assembly 329446-12X - 12 Volt / I 329446-24X 24 Volt - } . · | 378881 | $16.73 | Add to Cart | ||
| 3291305X | Oil To P.T.0. / ;,( Hose Ass'y · · ;;-: __ ( | $106.43 | Add to Cart |
Torque :ooi:;__) Values Must Be I
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| KIT859 | Series Without E .o .c (SK-411 Rev A) Caterpillar . | — | Call for availability | |||
| 379928 | Red Wire ' 379306 379252 And ,_, I � 1, Spade Electrical Terminal Black Wire Ground Of Cab Or Frame 379003 Light 379502 Pressure Switch Light Torque :ooi:;__) Values Must Be I Wile � . -~~~ F I [ 36 Bracket ; 1 ,1n1, V�--"' .-oii ~ ~ T O Rq U E ~~~Jiro.Itu1si Amp I I ~ I ' 0 To Fuse 7 1 7 16-20 I / _ ' Lbs Ft : _ _ _ 379257 Splice =� Connector J Positive Terminal Of " " - Ignition Or Battery io1 Nlllllla- -379a12 St ,alghtrnaghght Pressure Port ~ Install In Transm1ss1on | Butt Connector | $47.11 | Add to Cart | ||
| 32892412X | 379502 L | $1,358.05 | Add to Cart | |||
| 32892424X | Torque Between | — | Call for availability |
L�ft Soe Oey '""' ®
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 379265 | Grommet';(:[)( Run Wires Through , � Grommet In Firewall 379504 Valve Connector W And Wire Assembly | $3.21 | Add to Cart |
Additional Parts Listed in This Manual
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 329647 | *x | — | Call for availability | |||
| 329231 | X Valve Connector ': | — | Call for availability | |||
| 329230X | Grommet In Firewall I | — | No longer available — call for replacement | |||
| 379306 | Spade Terminal | $2.50 | Add to Cart | |||
| 379336 | Bracket | $10.11 | Add to Cart | |||
| 379700 | Insert In Hole In Firewall | $13.33 | Add to Cart | |||
| 329446-12X | 12 Volt / | $616.62 | Add to Cart | |||
| 329446-24X | 24 Volt | $572.75 | Add to Cart | |||
| 379257 | Splice | $2.91 | Add to Cart | |||
| 379005 | 24 Volt | — | No longer available — call for replacement | |||
| 378978 | 12 Volt Indicator | $25.82 | Add to Cart | |||
| 379502 | Pressure Switch | $93.06 | Add to Cart | |||
| 328923-1 | Ox (10 Ft. Supplied W/ E.o.c.) Hose Purchased Separately | — | Call for availability | |||
| 328923-5X | (5 Ft. Optional Cable) \ | — | No longer available — call for replacement | |||
| 379504 | Valve Connection ' / W/fork Terminal | $52.22 | Add to Cart | |||
| 379978 | 12 Volt | $106.71 | Add to Cart | |||
| 379900 | Fuse | $5.99 | Add to Cart | |||
| 2-P-752 | $1,373.39 | Add to Cart | ||||
| 2-P-827 | $2,429.69 | Add to Cart | ||||
| 2-P-753 | $1,373.39 | Add to Cart | ||||
| 2-P-754 | $1,373.39 | Add to Cart | ||||
| 2-P-826 | $1,569.45 | Add to Cart | ||||
| 2-P-764 | $710.54 | Add to Cart | ||||
| 329075-1X | $87.88 | Add to Cart | ||||
| 329130-4X | $96.99 | Add to Cart | ||||
| 329075-2X | $150.07 | Add to Cart | ||||
| 329075-4X | $158.14 | Add to Cart | ||||
| 329075-5X | $167.36 | Add to Cart | ||||
| 329130-6X | $78.28 | Add to Cart |
This is the complete factory parts breakdown for the Chelsea PTO 859 — every part in the manual, matched to our live inventory. We stock 178 of the 220 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 859 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.
| Models covered | 859 |
| PTO type | Chelsea 800 Series |
| Document | Illustrated Parts List (Chelsea) |
| Length | 21 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.