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Chelsea PTO 823 Series Parts Manual

This Chelsea Illustrated Parts List covering the 823 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.

Models covered823
PTO typeChelsea 800 Series
DocumentIllustrated Parts List (Chelsea)
Length16 pages
FormatPDF — 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

Download PDF

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 823 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. 215 of the 244 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

ItemPart numberDescriptionQtyOrder
11-P-323P.T.O. Housing for Ass'y 3 & 61▶ Add
 1-P-324P.T.O. Housing for Ass'y 4 & 51▶ Add
 1-P-321P.T.O. Housing for Ass'y 3 & 6 (Constant Mesh Only)1▶ Add
 1-P-322P.T.O. Housing for Ass'y 4 & 5 (Constant Mesh Only)1▶ Add
43-P-364Shaft, Output ("AB", "AC" & "XV" Output) 11▶ Add
59-P-28Shaft, Idler No Pressure Lube (Standard) 1 or 1 or ▶ Add
 9-P-37Shaft, Idler Pressure Lube 1 or 1 or ▶ Add
 9-P-82Shaft, Idler Self Lube 11▶ Add
614-P-27Spacer, Needle Bearing 11▶ Add
 328297-3XNeedle Roller Replacement Kit 11▶ Add
7378389Needle Rollers (21 per set) 2 sets 2 sets ▶ Add
8378769Thrust Bearing 22▶ Add
914-P-48Spacer, Needle Bearing 22▶ Add
1031-P-90Thrust Washer 44▶ Add
1128-P-239O-Ring 11▶ Add
1228-P-240O-Ring 11▶ Add
133-1-3431Spicer 1410 Companion Flange ("XV" Output) 1  call to confirm availability1
 379558DIN 120 Companion Flange ("AB") ▶ Add
 379742DIN 100 Companion Flange ("AC") ▶ Add
14378382Nut, Hex (.875" 14) ("AB", "AC" & "XV") 1  no longer available — call for a replacement1
1521-P-66Bearing Cover, Closed End ("AB", "AC", "XS", "XU", "XV" & "XY") 11▶ Add
1655-P-19Gasket, Shim 22▶ Add
18560946Bearing Cup 22▶ Add
19560945Cone Bearing, Standard Shaft ("AB", "AC", "XS", "XU", "XY" & "XV") 22▶ Add
2021-P-65Bearing Cover, Open End ("AB", "AC", "XV") 11▶ Add
2128-P-211Oil Seal, Standard Shaft 11▶ Add
22378433-14Capscrew, Hex head (.500" 13 x 1.50") 44▶ Add
23378431-4Screw, Hex Head (.375" 16 x .500") 44▶ Add
2411-P-135Shaft, Shifter1▶ Add
25379614Fitting Indicator Switch1▶ Add
2637-P-51Shifter Spring2▶ Add
27378008Shifter Ball  call to confirm availability2
2828-P-218Oil Seal, Shifter Shaft2▶ Add
29379613Copper Gasket1▶ Add
30379639Indicator Switch  no longer available — call for a replacement1
31379612Plunger1▶ Add
3238-P-8Poppet Cap1▶ Add
33500381-3Jam Nut, Hex (.438" 20)1▶ Add
3436-P-1Eye Bolt (.438" 20)1▶ Add
3532-P-122Shift Fork, Ass'y 3 & 61▶ Add
 32-P-121Shift Fork, Ass'y 4 & 51▶ Add
364-P-110Driveshaft Spacer (Constant Mesh Only)2▶ Add
37378916Capscrew, Shift fork (.375" 24 x 1.375")1▶ Add
4127-P-9Retaining Plate 11▶ Add
42378430-8Capscrew, Hex Head (.312" 18 x .750") 11▶ Add
4335-P-93Gasket, Cover Plate 11▶ Add
4434-P-133Cover Plate 11▶ Add
45378429-6Hex Capscrew (.250" 20 x .625") 44▶ Add

Bill of Materials — manual page 7

ItemPart numberDescriptionQtyOrder
LOOSE PARTS
 328170-8XMounting Stud Kit 11▶ Add
46378054Dowel Pin 22▶ Add
47379424-21Stud (.438" 14 & .438" 20 x 2.250") 88▶ Add
49379745Flange Nut (.438" 20) 88▶ Add
 328170-185XMounting Stud Kit ▶ Add
 378054Dowel Pin ▶ Add
 379429-22Stud, Metric (.438" 20 & M12 .125" x 2.250") ▶ Add
 379745Flange Nut (.438" 20) ▶ Add
 328948-8XGasket & Installation Kit ▶ Add
 328751-1XLever Control Indicator Light Installation Kit ("Y" Shift) ▶ Add
 328388-61XAir Shift Installation Kit ("A" Shift) ▶ Add
 329218XIndicator Switch Service Kit ("V" Shift) ▶ Add
 378414Pressure Protection Valve ("V" Shift) ▶ Add
 328368-2XNeedle Rollers Field Replacement Kit 11▶ Add
 328356-2XGasket & Seal Kit1▶ Add
 328356-3XGasket & Seal Kit, w/Shifter Seal ("AB", "AC", "XV" Output) 11▶ Add
 328356-4XGasket, O-Ring & Seal Kit ▶ Add
 328356-6XO-Ring & Gasket Mounting Kit ▶ Add
 328390-152XAir Shift Conversion Kit  call to confirm availability 

Parts list (page 8) — manual page 8

ItemPart numberDescriptionQtyOrder
1379027Air Cylinder Cap 2 ▶ Add
2500897-5Shipping Plug 2  call to confirm availability 
328-P-61O-Ring 2 ▶ Add
4378431-31Hex. Head Capscrew .375" 16 x 4.25" 2 ▶ Add
565-P-29Air Cylinder Body 1 ▶ Add
666-P-24Piston Shifter 1 ▶ Add
822-P-113Gasket 1 ▶ Add
938-P-8Poppet Cap .500" 20 1 ▶ Add
1028-P-198O-Ring Shifter Cylinder 1 ▶ Add
1137-P-51Shifter Spring 1 ▶ Add
1211-P-135Shifter Shaft 1 ▶ Add
13378002Shifter Ball 1 ▶ Add
14378916Capscrew .375" 24 x 1.375" (Shifter Fork) 1 ▶ Add
1532-P-122Shifter Fork (Ass'y 3 & 6) 1 or ▶ Add
 32-P-121Shifter Fork (Ass'y 4 & 5) 1 ▶ Add
1638-P-218Oil Seal 1  call to confirm availability 
17379639Indicator Switch (Normally Off) 1  no longer available — call for a replacement 
1835-P-99Gasket Shifter Cap 1 ▶ Add
19379614Fitting Indicator Switch (Adapter .562" 18 to .500" 20) 1 ▶ Add
20378431-4Hex. Head Capscrew .375" 16 X .500" 2 ▶ Add
21379612Plunger (Indicator Switch) 1 ▶ Add
2265-P-31Cap Shifter Shaft 1 ▶ Add
23379613Cooper Gasket (Indicator Switch Fitting) 1 ▶ Add

Bill of Materials — manual page 9

ItemPart numberDescriptionQtyOrder
 3-P-364Output Shaft1▶ Add
 329174XPump Flange & Instructions Tag1▶ Add
 21-P-65Bearing Cap, Open1▶ Add
 21-P-340Pump Flange "XW" Only ▶ Add
 28-P-211Oil Seal1▶ Add
 379616Instruction Tag ▶ Add
 378382Hex Nut (.875" 14)  no longer available — call for a replacement1
 3-P-726Pump Shaft1▶ Add
 378433-14Hex Head Capscrew (.500" 13 x 1.500")4▶ Add
 28-P-212Oil Seal1▶ Add
 560945Tapered Bearing Cone1▶ Add
 379231Pipe Plug1▶ Add
 379558Companion Flange (DIN 120)1▶ Add
 28-P-245O-Ring (Furnished by Customer)1▶ Add
 560944Tapered Bearing Cone1▶ Add
 3-P-364Output Shaft1▶ Add
 21-P-65Bearing Cap, Open1▶ Add
 3-P-950XOutput Shaft, Greabable1▶ Add
 28-P-211Oil Seal1▶ Add
 21-P-655Bearing Cap, Rear1▶ Add
 378382Hex Nut (.875" 14)  no longer available — call for a replacement1
 28-P-226Shaft Seal1▶ Add
 378433-14Hex Head Capscrew (.500" 13 x 1.500")4▶ Add
 379432-1Cap Screw SocketHead (.312" 18 x .375")3▶ Add
 560945Tapered Bearing Cone1▶ Add
 379742Companion Flange (DIN 100)1▶ Add
 3-P-863Output Shaft, Self Lub ("LG") 1 or  call to confirm availability 
 3-P-864Output Shaft, Self Lub ("LH", "LJ")  call to confirm availability1
 3-P-364Output Shaft1▶ Add
 9-P-82Idler Shaft (Pressure Lube)1▶ Add
 21-P-65Bearing Cap, Open1▶ Add
 329105XSelf Lube Assembly1▶ Add
 28-P-211Oil Seal1▶ Add
 378450-8Allen Hex Head Capscrew (.500" 13 x 1.500") 4 ▶ Add
 378382Hex Nut (.875" 14)  no longer available — call for a replacement1
 379231Pipe Plug (.125" 27 NPTF) ▶ Add
 378433-14Hex Head Capscrew (.500" 13 x 1.500")4▶ Add
 560945Tapered Bearing Cone1▶ Add
 500841-190° Street Elbow1▶ Add
 3-1-3431Companion Flange  call to confirm availability1
 329092XPressure Lube Hose Assembly1▶ Add
 3-P-726Output Shaft, Pump1▶ Add
 21-P-382Bearing Cap, Open1▶ Add
 28-P-212Oil Seal1▶ Add
 379056-47Shoulder Stud (.500" 13 20 x 3.750")  call to confirm availability4
 500356-13Lockwasher4▶ Add
 500381-5Nut, Hex (.500" 20)4▶ Add
 500365-37Flat Washer4▶ Add
 560944Tapered Bearing Cone1▶ Add
 3-P-826Output Shaft, Pump  call to confirm availability1
 21-P-470Pump Flange  call to confirm availability1
 28-P-212Oil Seal1▶ Add
 378433-14Hex Head Capscrew (.500" 13 x 1.500")4▶ Add
 560944Tapered Bearing Cone1▶ Add
 3-P-726Output Shaft, Pump1▶ Add
 21-P-382Pump Flange, Outpump1▶ Add
 28-P-212Oil Seal1▶ Add
 378450-8Allen Hex Head Capscrew (.500" 13 x 1.500").4 ▶ Add
 560944Tapered Bearing Cone1▶ Add
 3-P-946Output Shaft, Pump  call to confirm availability1
 21-P-648Pump Flange  call to confirm availability2
 28-P-212Oil Seal2▶ Add
 378433-14Hex Head Capscrew (.500" 13 x 1.500")8▶ Add
 560944Tapered Bearing Cone2▶ Add

Parts list (page 12) — manual page 12

ItemPart numberDescriptionQtyOrder
 328388-61XInstallation Kit ▶ Add

Bill of Materials — manual page 13

ItemPart numberDescriptionQtyOrder
 328356-2XGasket & Seal Kit ▶ Add
 328390-152XField Conversion Kit  call to confirm availability 
 28-P-211Oil Seal1▶ Add
 28-P-61O-Ring4▶ Add
 28-P-218Oil Seal2▶ Add
 328388-61XAir Shift1▶ Add
 28-P-239O-Ring1▶ Add
 35-P-16Shifter Cover2▶ Add
 28-P-240O-Ring1▶ Add
 378431-28Capscrew4▶ Add
 379027Cylinder C2▶ Add
 500897-5Plug-Shipping  call to confirm availability2
 55-P-19Shim Gasket2▶ Add
 65-P-16Shifter Cylinder  call to confirm availability2
 66-P-5Shifter Pin 2  no longer available — call for a replacement 
 328356-3XGasket & Seal Kit ▶ Add
 328591-136XConversion Kit "XS" To "GS" ▶ Add
 28-P-218Oil Seal2▶ Add
 55-P-19Shim Gasket1▶ Add
 28-P-239O-Ring1▶ Add
 28-P-240O-Ring1▶ Add
 28-P-196O-Ring (Viton)1▶ Add
 379432-1Capscrew3▶ Add
 55-P-19Shim Gasket2▶ Add
 21-P-655Bearing Cap1▶ Add
 28-P-226Thrust Bearing1▶ Add
 28-P-212Oil Seal1▶ Add
 22-P-98Gasket1▶ Add
 328356-4XGasket & Seal Kit ▶ Add
 3-P-950XOutput Shaft Assembly1▶ Add
 28-P-212Oil Seal1▶ Add
 500168-2Fitting1▶ Add
 28-P-218Oil Seal2▶ Add
 379819Grease Fit1▶ Add
 28-P-239O-Ring1▶ Add
 379688Lubricant-Spline1▶ Add
 28-P-240O-Ring1▶ Add
 3-P-950Output Shaft Assembly  no longer available — call for a replacement1
 560946Bearing Cup1▶ Add
 560945Bearing Cone1▶ Add
 328591-137XConversion Kit "XV" To "GS"  no longer available — call for a replacement 
 55-P-19Shim Gasket2▶ Add
 55-P-19Shim Gasket1▶ Add
 328356-5XGasket & Seal Kit ▶ Add
 28-P-211Oil Seal1▶ Add
 21-P-382Pump Flange1▶ Add
 28-P-239O-Ring1▶ Add
 21-P-655Bearing Cap1▶ Add
 28-P-240O-Ring1▶ Add
 28-P-226Thrust Bearing1▶ Add
 28-P-212Oil Seal1▶ Add
 379442Stud4▶ Add
 55-P-19Shim Gasket2▶ Add
 3-P-950XOutput Shaft1▶ Add
 500168-2Fitting1▶ Add
 379819Grease Fitting1▶ Add
 379688Lubricant-Spline1▶ Add
 328356-6XGasket & Seal Kit ▶ Add
 3-P-950Output Shaft  no longer available — call for a replacement1
 28-P-239O-Ring1▶ Add
 560946Bearing Cup1▶ Add
 28-P-240O-Ring1▶ Add
 560945Bearing Cone 1 ▶ Add
 560944Bearing Cone1▶ Add
 500356-13Lockwasher4▶ Add
 55-P-19Shim Gasket2▶ Add
 500381-5Hex Nut4▶ Add
 379432-1Capscrew3▶ Add
 328751-1XInstallation Kit ▶ Add
 328368-2XNeedle Bearing Kit ▶ Add
 378978Indicator1▶ Add
 14-P-27Spacer1▶ Add
 379252Butt Connector2▶ Add
 14-P-48Needle Bearing2▶ Add
 68-P-18Name Plate1▶ Add
 378389Needle Bearing42▶ Add
 379640Booted Connector1▶ Add
 379900Ass'y Fuse1▶ Add
 328388-61XAir Shift ▶ Add
 68-P-28Name Plate1▶ Add
 328388-45XAir Shift1▶ Add
 329090-2XValve Kit  call to confirm availability1
 328864XShifter Valve1▶ Add
 378414Pressure Port1▶ Add
 379044-7Nylon Tubing  call to confirm availability1
 379130Support Bracket2▶ Add
 379252Butt Connector2▶ Add
 379640Booted Connector1▶ Add
 379254-16Ring Connector  no longer available — call for a replacement1

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.

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.
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