Chelsea PTO 680 Series Parts Manual

This Chelsea Illustrated Parts List covering the 680 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.

Models covered	680
PTO type	Chelsea 600 Series
Document	Illustrated Parts List (Chelsea)
Length	24 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

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 680 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. 238 of the 276 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
660 680
1	1-P-580	Housing, Standard Mount ("X" & "G" Mounting) 1 or		▶ Add
	1-P-581	Housing, Deep Mount ("Z" Mounting)	1	▶ Add
	1-P-573	Housing, Standard Mount ("X" & "G" Mounting) 1 or		▶ Add
	1-P-582	Housing, Deep Mount ("Z" Mounting)	1	▶ Add
3	550439	Bearing Cone, Input 2	2	▶ Add
5	9-P-71	Idler Shaft, Pressure Lube 1 or 1 or		▶ Add
	9-P-60	Idler Shaft 1	1	▶ Add
7	378391	Lockring 2	2	▶ Add
8	3-P-202	Drive Shaft, Output (1-1/4" Round) 1	1	▶ Add
10	550532	Bearing Cone 1	1	▶ Add
11	550221	Bearing Race 1	1	▶ Add
	329274X	Bearing Cap Ass'y, Closed End 1	1	▶ Add
12	21-P-131	Bearing Cap Ass'y, Closed End 1	1	▶ Add
13	550397	Bearing Cone (Output) 1	1	▶ Add
14	550221	Bearing Race (Output) 1	1	▶ Add
	329273X	Bearing Cap Ass'y, Open End (See Chart Page 11-14 for Other Options) 1	1	▶ Add
15	21-P-130	Bearing Cap, Open End ("XD" Output) 1	1	▶ Add
16	28-P-216	Oil Seal, Standard Output Shaft 1	1	▶ Add
17	378430-10	Hex Capscrew .312"-18 x 1.000" 4	4	▶ Add
CABLE CONTROL COVER ASSEMBLIES
	329119-1X	Assemblies 3 & 6 1	1	▶ Add
	329119-2X	Assemblies 4 & 5 1	1	▶ Add
	329121-1X	Assemblies 3 & 6 1	1	▶ Add
	329121-2X	Assemblies 4 & 5 1	1	▶ Add
18	34-P-74	Shifter Cover 1	1	▶ Add
19	37-P-19	Spring 1	1	▶ Add
20	63-P-16	Poppet Pin 1	1	▶ Add
21	28-P-191	O-Ring 1	1	▶ Add
22	329118-1X	For Assemblies 3 & 6 1	1	▶ Add
	329118-2X	For Assemblies 4 & 5 1	1	▶ Add
22	329120-1X	For Assemblies 3 & 6 1	1	▶ Add
	329120-2X	For Assemblies 4 & 5 1	1	▶ Add
23	378004	Flat Washer 1	1	▶ Add
24	51-P-22	Shifter Lever 1	1	▶ Add
25	500365-22	Flat Washer 1	1	▶ Add
26	500356-10	Lock Washer 1	1	▶ Add
27	500409-6	Hex Capscrew 1	1	▶ Add
28	379639	Indicator Switch, Pin Style 1 no longer available — call for a replacement	1
29	35-P-8	Gasket, Shift Cover 1	1	▶ Add
30	378430-9	Hex Capscrew .312"-18 x .875" 4	4	▶ Add

Bill of Materials — manual page 7

Item	Part number	Description	Qty	Order
660 680
	328170-200X	Stud Kit, Standard/Deep Mount	1	▶ Add
	328170-201X	Stud Kit, Metric Standard Mount	1	▶ Add
	328170-76X	Stud Kit, Standard Mount	1	▶ Add
	328170-77X	Stud Kit, Deep Mount	1	▶ Add
	328346-10X	Cable Control Assembly 1	1	▶ Add
	328380X	Wire Control Parts Bag (contains items 31 36) 1	1	▶ Add
31	378019	Pivot Pin 1	1	▶ Add
32	378326	Hex Nut (.250" 20) 1	1	▶ Add
33	50-P-17	Mounting Bracket 1	1	▶ Add
34	50-P-19	Swivel Bracket 1	1	▶ Add
35	500396-8	Hexhead Screw (.250" -20 x .750") 1	1	▶ Add
36	500568-4	Set Screw (.250" 20 x .500") 1	1	▶ Add
	329245X	Shifter Bracket Kit (Special Shift Control And Kit) 1	1	▶ Add
	328388-37X	Air Shift Installation Kit ("A") 1 no longer available — call for a replacement	1
	328388-47X	Electric/Air Installation Kit 12V ("P") 1	1	▶ Add
	328388-48X	Electric/Air Installation Kit 24V ("Q") 1	1	▶ Add
	328388-65X	Air Shift With Control Valve ("S") 1	1	▶ Add
	328388-72X	Air Shift With Control Valve ("T") 1	1	▶ Add
	329166-12X	Electric Shift Installation Kit 12V 1 call to confirm availability	1
	328751-1X	Indicator Light Installation Kit 1	1	▶ Add
	68-P-18	Name Plate 1	1	▶ Add
	378978	12V Indicator Light 1	1	▶ Add
	379900	10-AMP Fuse Holder 1	1	▶ Add
	379252	Butt Connector 2	2	▶ Add
	379640	Booted Connector 1	1	▶ Add
	328948-6X	Gaskets & Installation Instructions	1	▶ Add
	328948-8X	Gaskets & Installation Instructions	1	▶ Add
	329202X	Indicator Switch Connector Service Kit		▶ Add
	329218X	Indicator Switch Service Kit (Includes 379640 & 379252) 1	1	▶ Add
	328356-15X	Shifter Cover Seal Kit (Cable Control) 1	1	▶ Add
	328356-17X	Shifter Cover Seal Kit (Air Shift) 1	1	▶ Add
	328356-26X	Shifter Cover Seal Kit (Lever Control) 1 call to confirm availability	1
	329143X	Shifter Shaft Cover Kit 1	1	▶ Add
	329303-1X	Seal Kit (Output Options XD, RA, XE, XG, XJ, XK, XL, RB, XM, XN		▶ Add
	329303-2X	Seal Kit (Output Options AF and FF)	1	▶ Add
	329303-3X	Seal Kit (Output Options XY and AZ)	1	▶ Add
	329303-4X	Seal Kit (Output Options GA, GB and GR) call to confirm availability	1
	329303-5X	Seal Kit (Output Options GF) call to confirm availability	1
	329303-6X	Seal Kit (Output Options XD, RA, XE, XG, XJ, XK, XL, RB, XM, XN		▶ Add
	329303-7X	Seal Kit (Output Options AF and FF)	1	▶ Add
	329303-8X	Seal Kit (Output Options XY and AZ)	1	▶ Add
	329303-9X	Seal Kit (Output Options GA, GB and GR)	1	▶ Add
	329303-10X	Seal Kit (Output Options GF)	1	▶ Add
	329310-1X	Bearing And Seal Kit (Output Options XD, RA, XE, XG, XJ, XK, XL,		▶ Add
	329310-2X	Bearing And Seal Kit (Output Options AF and FF) call to confirm availability	1
	329310-3X	Bearing And Seal Kit (Output Options XY and AZ) call to confirm availability	1
	329310-4X	Bearing And Seal Kit (Output Options GA, GB and GR) call to confirm availability	1
	329310-5X	Bearing And Seal Kit (Output Options GF) call to confirm availability	1
	329310-6X	Bearing And Seal Kit (Output Options XD, RA, XE, XG, XJ, XK, XL, call to confirm availability
	329310-7X	Bearing And Seal Kit (Output Options AF and FF) call to confirm availability	1
	329310-8X	Bearing And Seal Kit (Output Options XY and AZ) call to confirm availability	1
	329310-9X	Bearing And Seal Kit (Output Options GA, GB and GR) call to confirm availability	1
	329310-10X	Bearing And Seal Kit (Output Options GF) call to confirm availability	1

Parts list (page 8) — manual page 8

Item	Part number	Description	Qty	Order
660 680
	329165-1X	SHIFT COVER ASSEMBLY 12V (Ass'y 3 & 6) 1 call to confirm availability	1
	329165-2X	SHIFT COVER ASSEMBLY 12V (Ass'y 4 & 5) 1 call to confirm availability	1
37	34-P-76	Shift Cover 1 call to confirm availability	1
38	32-P-166	Shifter Fork 1	1	▶ Add
39	329255-12X	Electric Shift Ass'y 1 call to confirm availability	1
40	378447-4	Socket Head Capscrew 1	1	▶ Add
41	28-P-207	Oil Seal 1	1	▶ Add
42	379639	Indicator Switch 1 no longer available — call for a replacement	1
43	35-P-14	Gasket, Shifter Shaft Cover 1	1	▶ Add
44	65-P-23	Shifter Shaft Cover 1	1	▶ Add
45	378430-4	Hex Capscrew (.312"-18 x .500") 4	4	▶ Add
46	378430-8	Hex Capscrew (.312"-18 x .750") 4	4	▶ Add
47	35-P-8	Gasket, Shifter Cover 1	1	▶ Add
	328390-138X	Cable To Electric 12V (Ass'y 3 & 6) 1 call to confirm availability	1
	328390-139X	Cable To Electric 12V (Ass'y 4 & 5) 1 call to confirm availability	1
	328390-140X	Lever Or Air To 12V Easy Shift (ASS'Y 3, 4, 5 & 6) 1 call to confirm availability	1

Parts list (page 9) — manual page 9

Item	Part number	Description	Qty	Order
660 680
	329361X	Shifter Cover Assembly, Air Shift ( Includes Items 48-57) 1	1	▶ Add
48	34-P-130	Shifter Cover 1	1	▶ Add
49	378316	Snap Ring 2	2	▶ Add
50	378315	Cover Plug 2	2	▶ Add
51	28-P-42	O-Ring 2	2	▶ Add
52	37-P-21	Shifter Spring 1	1	▶ Add
53	11-P-75	Shaft, Shifter 1	1	▶ Add
54	28-P-41	O-Ring 1	1	▶ Add
55	32-P-180	Shifter Fork 1	1	▶ Add
56	378447-4	Capscrew, Socket Head w/ lockpatch (.312"-18 x .750") 1	1	▶ Add
57	379639	Indicator Switch (Normally OFF) 1 no longer available — call for a replacement	1
58	379904	Push Connect, for 1/4" tubing 1	1	▶ Add
59	35-P-8	Gasket, Shifter Cover 1	1	▶ Add
60	378430-8	Capscrew, Hex Head (.312"-18 x .750") 4	4	▶ Add
	328390-117X	Lever or Cable to Air 1	1	▶ Add
	328390-119X	Lever or Cable to Electric/Air, 12V 1	1	▶ Add
	328390-120X	Lever or Cable to Electric/Air, 24V 1	1	▶ Add

Kits — manual page 10

Item	Part number	Description	Qty	Order
660 680
	329106-39X	AIR SHIFT ("A" option) 1	1	▶ Add
	329106-43X	ELECTRIC/AIR 12V ("P" option) 1	1	▶ Add
	329106-45X	ELECTRIC/AIR 24V ("Q" option) 1 no longer available — call for a replacement	1
	329106-105X	CABLE SHIFT (Q, W & X Ratios, Ass'y 3 & 6, "W" option) 1	1	▶ Add
	329106-106X	CABLE SHIFT (Q, W & X Ratios, Ass'y 4 & 5, "W" option) 1	1	▶ Add
	329106-107X	CABLE SHIFT, Less Cable (Q, W, & X Ratios, Ass'y 3 & 6, "X" option) 1	1	▶ Add
	329106-108X	CABLE SHIFT, Less Cable (Q, W, & X Ratios, Ass'y 4 & 5, "X" option) 1	1	▶ Add
	329106-109X	CABLE SHIFT (F, L, S & U Ratios, Ass'y 3 & 6, "W" option) 1	1	▶ Add
	329106-110X	CABLE SHIFT (F, L, S & U Ratios, Ass'y 4 & 5, "W" option) 1	1	▶ Add
	329106-111X	CABLE SHIFT, Less Cable (F, L, S & U Ratios, Ass'y 3 & 6, "X" option) 1	1	▶ Add
	329106-112X	CABLE SHIFT, Less Cable (F, L, S & U Ratios, Ass'y 4 & 5, "X" option) 1	1	▶ Add
	329106-125X	E-Z SHIFT (Ass'y 3 & 6, "Z" option) 1 call to confirm availability	1
	329106-126X	E-Z SHIFT (Ass'y 4 & 5, "Z" option) 1 call to confirm availability	1
	329106-153X	AIR SHIFT ("V" option) 1	1	▶ Add
	329143X	DUST COVER KIT FOR LEVER & AIR SHIFTERS 1	1	▶ Add

Parts list (page 12) — manual page 12

Item	Part number	Description	Qty	Order
660 680
84	4-P-178	Spacer, Drive Shaft 1	1	▶ Add
85	4-P-177	Spacer, Drive Shaft 1	1	▶ Add
86	378391	Lockring 1	1	▶ Add
17	378430-10	Hex Capscrew .312"-18 x 1.00" 4	4	▶ Add
87	3-P-857	Output Shaft (LD Output) 1	1	▶ Add
	3-P-858	Output Shaft (LA, LB, LC, LF Output) 1 no longer available — call for a replacement	1
88	329091X	Lube Pump & Bearing Cap Assembly 1 no longer available — call for a replacement	1
89	329092X	Pressure Lube Hose Assembly 1	1	▶ Add
90	500841-1	90° Street Elbow 1	1	▶ Add

Gasket — manual page 15

Part number	Description	Qty	Order
28-P-216	Oil Seal	1	▶ Add
329102X	Bearing Cap Assy.(21-P-532) call to confirm availability	1
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-219	Oil Seal	1	▶ Add
329088X	Bearing Cap Assy.(21-P-522)	1	▶ Add
378447-10	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
328989X	Bearing Cap Assy.(21-P-472)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-230	Oil Seal call to confirm availability	1
329052X	Bearing Cap Assy.(21-P-508)	1	▶ Add
379982	Hex Washer Flange Bolt (.312" 18 x 2.5") call to confirm availability	4
28-P-219	Oil Seal	1	▶ Add
329088X	Bearing Cap Assy. (21-P-522)	1	▶ Add
378447-10	Socket Head Capscrew (.312" 18 x 2.0")	4	▶ Add
3-P-921X	"GF" Shaft Assemblies 1 or		▶ Add
3-P-933X	"GQ", "GK", "GP" Shaft Assemblies 1 or		▶ Add
3-P-938X	"GM", "GY" Shaft Assemblies 1 or		▶ Add
3-P-939X	"GZ" Shaft Assemblies 1 or		▶ Add
3-P-941X	"GH", "GJ" Shaft Assemblies	1	▶ Add
500168-2	Lube Fitting (Zerk)	1	▶ Add
379819	Grease Fitting Cap	1	▶ Add
379688	Coupling Lube Pack (5/8 fl.oz)	1	▶ Add
28-P-268	Rear Bearing Cap Shaft Oil Seal	1	▶ Add
329273X	Rear Bearing Cap Assembly	1	▶ Add
378430-10	Rear Bearing Cap Hex Head Capscrew	4	▶ Add
3-P-858	Output Shaft ("LA", "LB", "LC", "LF") no longer available — call for a replacement	1
329091X	Lube Pump & Bearing Cap Assy no longer available — call for a replacement	1
329092X	Pressure Lube Hose Assy	1	▶ Add
500841-1	Elbow 90° Street	1	▶ Add
378430-10	Hex Capscrew (.312" 18 x 1.0")	4	▶ Add

Parts list (page 16) — manual page 16

Part number	Description	Qty	Order
28-P-275	Oil Seal	1	▶ Add
329412X	Bearing Cap Assy. (21-P-675) call to confirm availability	1
378447-6	Socket Head Capscrew (.312" 18 x 1.0")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
329195X	Bearing Cap Assy. (21-P-574)	1	▶ Add
21-P-628	Pump Flange (Ship Loose with unit)	1	▶ Add
378447-6	Socket Head Capscrew	4	▶ Add
328170-207X	Capscrew Bag Kit	1	▶ Add
378447-6	Socket Head Capscrew	3	▶ Add
28-P-216	Oil Seal	1	▶ Add
329195X	Bearing Cap Assy. (21-P-574)	1	▶ Add
21-P-572	Pump Flange (Ship Loose with unit)	1	▶ Add
378447-6	Socket Head Capscrew	4	▶ Add
328170-207X	Capscrew Bag Kit	1	▶ Add
378447-6	Socket Head Capscrew	3	▶ Add
28-P-216	Oil Seal	1	▶ Add
329322X	Bearing Cap Assy (21-P-640)	1	▶ Add
21-P-638	Pump Flange	1	▶ Add
378447-6	Socket Head Capscrew (.312" 18 x 1.0")	4	▶ Add
328170-210X	Capscrew Bag Kit	1	▶ Add
378446-4	Socket Head Capscrew (.250" 20 x .75")	6	▶ Add
28-P-216	Oil Seal	1	▶ Add
329322X	Bearing Cap Assy (21-P-640)	1	▶ Add
21-P-638	Pump Flange	1	▶ Add
378447-6	Socket Head Capscrew (.312" 18 x 1.0")	4	▶ Add
328170-210X	Capscrew Bag Kit	1	▶ Add
378446-4	Socket Head Capscrew (.250" 20 x .75")	6	▶ Add
28-P-219	Oil Seal	1	▶ Add
329264X	Bearing Cap Assy. (21-P-629)	1	▶ Add
21-P-654	Pump Flange	1	▶ Add
378447-6	Socket Head Capscrew (.312" 18 x 1.0")	7	▶ Add
28-P-271	O-Ring	1	▶ Add
28-P-219	Oil Seal	1	▶ Add
329264X	Bearing Cap Assy. (21-P-629)	1	▶ Add
21-P-626	Pump Flange	1	▶ Add
378447-6	Socket Head Capscrew (.312" 18 x 1.0")	7	▶ Add
28-P-271	O-Ring	1	▶ Add
21-P-625	Pump Flange	1	▶ Add
329356X	Bearing Cap Assy (21-P-532)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
329355-1X	Standard Loose Parts Kit	1	▶ Add
379740-6	Socket Head Capscrew (M10 1.5" x .984")	3	▶ Add
22-P-100	Gasket	1	▶ Add
22-P-84	Gasket	1	▶ Add
379231	Pipe Plug	2	▶ Add

Parts list (page 17) — manual page 17

Part number	Description	Qty	Order
28-P-216	Oil Seal	1	▶ Add
328328X	Bearing Cap Assy. (21-P-161)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
328580X	Bearing Cap Assy. (21-P-259)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
328580X	Bearing Cap Assy.(21-P-259)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
328333X	Bearing Cap Assy.(21-P-424)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
328580X	Bearing Cap Assy.(21-P-259)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
328328X	Bearing Cap Assy.(21-P-161)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
328328X	Bearing Cap Assy.(21-P-161)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
328589X	Bearing Cap Assy.(21-P-269)	1	▶ Add
378447-8	Socket Head Capscrew (.312" 18 x 1.5")	4	▶ Add
28-P-216	Oil Seal	1	▶ Add
329194X	Bearing Cap Assembly (21-P-574)	1	▶ Add
379673	Hex Shoulder Screw (.312" 24)	4	▶ Add
379063	Flat Washer	4	▶ Add
328711X	Pump Mounting Kit	1	▶ Add
378919	Washer	4	▶ Add
500963-1	Hex Lock Nut (.312" 24) no longer available — call for a replacement	4
28-P-216	Oil Seal	1	▶ Add
329273X	Bearing Cap Assy. for 660 & 680 Series 1 or		▶ Add
328273X	Bearing Cap Assy. (21-P-418)	1	▶ Add
378430-10	Hex Capscrew (.312" 18 x 1.0")	4	▶ Add
500007-29	Woodruff Key	1	▶ Add
379828	Companion Flange	1	▶ Add
378431-8	Set Screw call to confirm availability	1

Parts list (page 18) — manual page 18

Part number	Description	Qty	Order
28-P-216	Oil Seal	1	▶ Add
329273X	Bearing Cap Assy. for 660 & 680 Series 1 or		▶ Add
328273X	Bearing Cap Assy. (21-P-418)	1	▶ Add
378430-10	Hex Capscrew (.312" 18 x 1.0")	4	▶ Add
379111	Square Key	1	▶ Add
501181	Hex Locknut (1.0" 20) no longer available — call for a replacement	1
28-P-275	Oil Seal	1	▶ Add
329234X	Bearing Cap Assy. (21-P-614)	1	▶ Add
378447-6	Socket Head Capscrew (.312" 18 x 1.0")	4	▶ Add

Parts list (page 19) — manual page 19

Item	Part number	Description	Order
660	1-P-580	0.789 3.007 (F, S) 3.317 (F, S) 6.428 7.000	▶ Add
660	1-P-581	0.570 3.007 (F, S) 3.317 (F, S) 6.207 7.000	▶ Add
680	1-P-573	1.072 3.007 (F, S) 3.317 (F, S) 6.708 8.500	▶ Add
680	1-P-582	0.930 3.007 (F, S) 3.317 (F, S) 6.566 8.500	▶ 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.