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Chelsea PTO 381 Series Parts Manual

This Chelsea Illustrated Parts List covering the 381 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.

Models covered381
PTO typeChelsea 300 Series
DocumentIllustrated Parts List (Chelsea)
Length10 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 381 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. 54 of the 102 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.

Parts list (page 3) — manual page 3

ItemPart numberDescriptionQtyOrder
 1-P-195HOUSING-Standard Mount  call to confirm availability1
 1-P-196HOUSING-Deep Mount  call to confirm availability1
3550439BEARING CONE, Input2▶ Add
 328017XGEAR SPACER KIT, Input (contains Item 4) .• • • •  no longer available — call for a replacement1
59-P-60IDLER SHAFT .•. .•. .•. .•. ••. •1▶ Add
72-P-425SLIDING GEAR, Output {19 Teeth)  call to confirm availability1
8378391LOCK RING •. • •. •. .• .•. .•2▶ Add
93-P-202DRIVE SHAFT, Output {1 ¼" Round)1▶ Add

Parts list (page 4) — manual page 4

ItemPart numberDescriptionQtyOrder
11550532BEARING CONE, Closed End •. .•1▶ Add
 328274XBEARING CAP ASSEMBLY, Closed End (contains Items 12-13)1▶ Add
12550221BEARING CUP, Closed End1▶ Add
1321-P-131BEARING CAP, Closed End N.S.S.· ▶ Add
14550397BEARING CONE, Output .•1▶ Add
 328273XBEARING CAP ASSEMBLY, Output (contains Items 15-16)1▶ Add
15550221BEARING CUP, Output .•. •••1▶ Add
1621-P-130BEARING CAP, Output .• .•. •. N.S.S ▶ Add
1728-P-52OIL SEAL, Output .•. .•. .•. •  call to confirm availability1
18378430-10SCREW, hex head (Eslock 5/ 16" -18 x 1")8▶ Add
 328816-1XWIRE SHIFT COVER ASSEMBLY,  call to confirm availability 
 328816-2XWIRE SHIFT COVER ASSEMBLY,  call to confirm availability 
1934-P-74SHIFTER COVER1▶ Add
2037-P-19SHIFTER SPRING .•1▶ Add
2163-P-16POPPET1▶ Add
2228-P-49O-RING (3/.t Outside Diameter)  no longer available — call for a replacement1
 328814-1XPOST & PLATE ASSEMBLY (Assembly 3 & 6)  call to confirm availability1
 328814-2XPOST & PLATE ASSEMBLY (Assembly 4 & 5)  call to confirm availability1
24378004FLAT WASHER (1" Outside Diameter)1▶ Add
2551-P-22SHIFTER LEVER • • .• • .• • •1▶ Add
26378003LOCK WASHER (5/16")  call to confirm availability1
27500409-6SCREW, hex head (5/16" 24 x %") •• .• ••1▶ Add
28378969INDICATOR SWITCH  no longer available — call for a replacement1
2935-P-8SHIFTER COVER GASKET (.020")1▶ Add
30378430-9SCREW, hex head (Eslock o/16" 18 x 7/a"}4▶ Add
LOOSE PARTS
31500007-29WOODRUFF KEY1▶ Add
3250-P-17BRACKET. ' '1▶ Add
3350-P-19SWIVEL BRACKET ""1▶ Add
34500396-8SCREW, hex head (¼" 20 x ¾")1▶ Add
35378326NUT, hex (¼" 20)1▶ Add
36378019PIVOT PIN ' '1▶ Add
37500568-4SET SCREW (¼" 20 x ½") .• .• .•• • •1▶ Add

Parts list (page 5) — manual page 5

ItemPart numberDescriptionQtyOrder
 328831-1XLEVER CONTROL COVER ASSEMBLY,  call to confirm availability 
 328831-2XLEVER CONTROL COVER ASSEMBLY,  call to confirm availability 
3934-P-87SHIFTER COVER •. .•.•. .•.•. •• .•. •  call to confirm availability1
4028-P-4OIL SEAL .•.•.•. .•.•.•. .•. .•. .• •• .·. .• .•  call to confirm availability2
4132-P-144SHIFTER FORK .•.•. .• •. .• • .• .•1▶ Add
4211-P-112SHIFTER SHAFT1▶ Add
43378447-4SCREW, hex socket (5/, 6" 18 x ¾")1▶ Add
44378002SHIFTER BALL. • • • .• .• • .•1▶ Add
4537-P-14SHIFTER SPRING1▶ Add
46378554SPRING CAP1▶ Add
47500381-3JAM NUT, hex head1▶ Add
4836-P-1EYE BOLT1▶ Add

Parts list (page 6) — manual page 6

ItemPart numberDescriptionQtyOrder
 328832-1XAIR SHIFT COVER ASSEMBLY,  call to confirm availability 
5134-P-76SHIFTER COVER .•.•. .•. .••. • •.•• ; • •  call to confirm availability1
5228-P-4OIL SEAL (Used Only on Side Without Cylinder)  call to confirm availability1
5332-P-144SHIFTER FORK1▶ Add
5411-P-122SHIFTER SHAFT  call to confirm availability1
55378447-4SCREW, hex socket (5/16" 18 x ¾") •3▶ Add
5637-P-25SHIFTER SPRING1▶ Add
57378462SPRING RETAINER WASHER1▶ Add
58378908SCREW, button head  no longer available — call for a replacement1
5928-P-55BLOCK VEE RING  call to confirm availability2
6066-P-4PISTON  no longer available — call for a replacement1
6135-P-14CYLINDER CAP GASKET1▶ Add
6265-P-14CYLINDER CAP1▶ Add
63500118-3PIPE PLUG (1/s" 27 N.P.T.)  call to confirm availability1
64378969INDICATOR SWITCH •. .•.•. ; • • .•  no longer available — call for a replacement1
65378430-8SCREW, hex head (Eslock 5/ 16" 18 x %"·)4▶ Add

Parts list (page 7) — manual page 7

ItemPart numberDescriptionQtyOrder
 328648XHOLLEY GOVERNOR DRIVE CONVERSION KIT  call to confirm availability 
 328060XDRIVE SHAFT & SPINNER ASSEMBLY (contains Items 66-67)  call to confirm availability1
663-P-270DRIVE SHAFT, Standard  call to confirm availability1
67378178SPINNER  call to confirm availability1
6828-P-53OIL SEAL  call to confirm availability1
69378391LOCK RING1▶ Add
 328588XBEARING CAP ASSEMBLY (contains Items 71-72)  call to confirm availability1
71550221BEARING CUP1▶ Add
7221-P-272BEARING CAP N.S.S  call to confirm availability 

Parts list (page 8) — manual page 8

ItemPart numberDescriptionQtyOrder
 328160XPUMP SHAFT & SPINNER ASSEMBLY (contains Items 73-74),  call to confirm availability 
 328097XPUMP SHAFT & SPINNER ASSEMBLY (contains Items 73-74),  call to confirm availability 
 328096XPUMP SHAFT & SPINNER ASSEMBLY (contains Items 73-74),  call to confirm availability 
 328743XPUMP SHAFT & SPINNER ASSEMBLY (contains Items 73-74)  call to confirm availability 
 3-P-311PUMP SHAFT (For Pump Suffix J,M)  call to confirm availability1
 3-P-310PUMP SHAFT (For Pump Suffix K, N, P, Q)  call to confirm availability1
 3-P-702PUMP SHAFT (For Pump Suffix L, R)  call to confirm availability1
74378178SPINNER  call to confirm availability1
7528-P-53OIL SEAL  call to confirm availability1
 328588XHOLLEY GOVERNOR DRIVE BEARING CAP ASSEMBLY,  call to confirm availability 
76550221BEARING CUP1▶ Add
7721-P-272BEARING CAP N.S.S  call to confirm availability 
78378391LOCK RING1▶ Add
NAME PLATE
 37897812-VOLT ▶ Add
INDICATOR LIGHT
 378969White Nylon  no longer available — call for a replacement 

Parts list (page 9) — manual page 9

ItemPart numberDescriptionQtyOrder
 328580X378447-8 (5/,s" 18 X 1½") 328591-10X ▶ Add
 328580X378447-8 (5/,s" 18 X 1½") 328591-11X ▶ Add
 328580X378447-8 (5/,e" 18 X 1½") 328591-18X ▶ Add
 328583X378447-7 (5/151 -18 X 1¼") 328591-20X  call to confirm availability 
 328584X378447-8 (5/,s" 18 X 1½") 328591-21X  call to confirm availability 
 328328X378447-7 (5/15" 18 X 1¼") 328591-23X ▶ Add
 328710X378918 Stud (4 Required) 328591-25X  call to confirm availability 
 21-P-166Pump Flange interferes with  call to confirm availability 
 21-P-269Pump Flange interferes with ▶ Add
 328711XPump to P.T.O. Mounting ▶ Add

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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