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Chelsea PTO 420 Series Parts Manual

View the official Chelsea PTO 420 parts manual (PDF)Download PDF

Model Number Designation

Chelsea PTO 420 Model Number Designation exploded-view diagram
ItemPart No.DescriptionQtyNotesPrice

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Chelsea PTO 420 �(�f exploded-view diagram
ItemPart No.DescriptionQtyNotesPrice
1P195Housing-standard Mount1—Call for availability
1P196Housing -deep Mount1—Call for availability
3550439Bearing Cone, Input2$51.63Add to Cart
328017XGear Spacer Kit, Input (contains Item 4)1—No longer available — call for replacement
I14P151Gear Spacer Input ( .055")1—Call for availability
14P152Gear Spacer Input ( .06 0")1$5.50Add to Cart
414P153Gear Spacer Input ( .065")1$5.50Add to Cart
14P154Gear Spacer Input ( .070")1—Call for availability
14P155Gear Spacer Input ( .075")1—Call for availability
59P60Idler Shaft , .1$61.76Add to Cart
3784527Set Screw-for Standard Mount (1/."' -20 X ½")1$4.37Add to Cart
3784524Set Screw-for Deep Mount (¼" 20 X 5/16")1$3.26Add to Cart
72P559Sliding Gear, Output (24 Teeth)1$224.47Add to Cart
8378391Lock Ring2$2.47Add to Cart
93P202Drive Shaft Output (11/," Round)1$95.42Add to Cart
22P24222P241Bearing Cap Gasket ( .010") Bearing Cap Gasket ( .020")A—Call for availability

Chelsea®

ItemPart No.DescriptionQtyNotesPrice
11550532Cone Closed End 1$36.75Add to Cart
328274XCap Assembly Closed End (contains Items 12 -13) 1$64.09Add to Cart
12550221Cup Closed End$14.19Add to Cart
1321P131Cap Closed End N .s .s , .$225.23Add to Cart
14550397Cone Output$36.75Add to Cart
328273X1 Cap Assembly Output (contains Items 15-16)$64.09Add to Cart
15550221Cup, Output$14.19Add to Cart
1621P130Cap Output N .s .s.$198.48Add to Cart
1728P52Output—Call for availability
18378430101 Hex Head (eslock 5/16" 18 X 1 ") : 8$1.76Add to Cart
3288152XShift Cover Assembly, 4 & 5 (contains Items 19-28) 1—Call for availability
1934P74Cover 1$44.57Add to Cart
2037P19Spring$2.04Add to Cart
2163P161$9.26Add to Cart
2228P49(¾" Outside Diameter) 1$3.59Add to Cart
24378004Washer (1 " Outside Diameter) : 1$2.01Add to Cart
2551P22Lever 1$12.57Add to Cart
26378003Washer (5 / 16") 1—Call for availability
275004096Hex Head (5/16" 24 X % ") 1$1.23Add to Cart
28378969Switch 1$31.23Add to Cart
295A250Spacer · 1$138.39Add to Cart
3035P8Cover Gasket ( .020") 2$3.48Add to Cart
3137843010Hex Head (estock 5/16" 18 X 1 ") 4 Parts$1.76Add to Cart
3250000729Key 1$3.11Add to Cart
32834610XCable Assembly (10X = 10 Foot Cable) 1$135.56Add to Cart
328380XMounting Parts (contains Items 33-38) 1$13.25Add to Cart
3350P171$5.47Add to Cart
3450P19Bracket 1$3.48Add to Cart
355003968Hex Head (¼ " 20 X ¾") 1$1.17Add to Cart
36378326Hex (¼" 20) 1$2.22Add to Cart
37378019Pin 1$4.50Add to Cart
385005684Screw (¼ " 20 X ½ ") 1$1.45Add to Cart
J35P91Housing ( .010 ") A.r—Call for availability

Jo--So

ItemPart No.DescriptionQtyNotesPrice
3288311XLever Control Cover Assembly , Assembly 3 & 6 (contains Items 40-50)1—Call for availability
3288312XLever Control Cover Assembly , Assembly 4 & 5 (contains Items 40-50)1—Call for availability
4034P87Shifter Cover1—Call for availability
4128P4Oil Seal2—Call for availability
4232P144Shifter Fork '1$58.48Add to Cart
4311P112Shifter Shaft1$51.93Add to Cart
443784474Screw, Hex Socket (s/ ,6" 18 X W')1$1.78Add to Cart
45378002Shifter Ball1$1.63Add to Cart
4637P14Shifter Spring1$3.46Add to Cart
47378554Spring Cap1$12.41Add to Cart
485003813Jam Nut Hex Head1$1.10Add to Cart
36P1Eye Bolt1$56.02Add to Cart
50378969Indicator Switch1$31.23Add to Cart
513784308Screw, Hex Head (eslock 5/ " 18 X ¾")4$2.06Add to Cart

Chelsea® 420 Series

ItemPart No.DescriptionQtyNotesPrice
328648XHolley Governor Drive Conversion Kit (contains Items 67-73) 1—Call for availability
328060XDrive Shaft & Spinner Assembly (contains Items 67-68) 1—Call for availability
673P270Drive Shaft Standard 1—Call for availability
68378178Spinner 1—Call for availability
6928P53Oil Seal 1—Call for availability
70378391Lock Ring 1$2.47Add to Cart
22P241Bearing Cap Gasket (.010" ) 1$2.30Add to Cart
22P242Bearing Cap Gasket ( .020 ") 1$10.49Add to Cart
328588XBearing Cap Assembly (contains Items 72-73) 1—Call for availability
72550221Bearing Cup 1$14.19Add to Cart
7321P272Bearing Cap N .s .s—Call for availability

Chelsea® 420 Series

ItemPart No.DescriptionQtyNotesPrice
3P281G — Quantity 378447-8, Required (5 " 1 8x, Four 1½"), Kit 328591, G) -10X$224.42Add to Cart
328580X& 550221 For G$439.30Add to Cart
3P284J — Quantity 378447-8, Required (5 15 " 18, Four X 1½"), Kit 328591, G) -1 1X$289.72Add to Cart
3P282K — Quantity 3i84A7 -8, Required (5/,s " 18, Four X 1½"), Kit 328591, G) -16X$187.84Superseded by 3P282XAdd to Cart
328333X& 550221 For K$239.73Add to Cart
3P283L — Quantity 378447 -8, Required (5 " 18, Four X 1½"), Kit 328591, G) -18X$187.84Add to Cart
328583X& 550221 For M—Call for availability
328584X& 550221 For N—Call for availability
328328X& 550221 For P$318.47Add to Cart
328589X& 550221 For O$324.47Add to Cart
328710X& 550221—Call for availability

Additional Parts Listed in This Manual

ItemPart No.DescriptionQtyNotesPrice
328815-1XWire Shift Cover Assembly—Call for availability
328832-1XAir Shift Cover Assembly—Call for availability
328832-2XAir Shift Cover Assembly—Call for availability
34-P-76Shifter Cover1—Call for availability
11-P-122Shifter Shaft1—Call for availability
378462Spring Retainer Washer1$1.61Add to Cart
66-P-4Piston1$9.22Add to Cart
35-P-14Cylinder Cap Gasket1$2.88Add to Cart
65-P-14Cylinder Cap1$120.90Add to Cart
500118-3Pipe Plug (1/8" 27 N.p.t.)1—Call for availability
328160XPump Shaft & Spinner Assembly (contains Items 74-75)—Call for availability
328097XPump Shaft & Spinner Assembly (contains Items 74-75)—Call for availability
328096XPump Shaft & Spinner Assembly (contains Items 74-75)—Call for availability
328743XPump Shaft & Spinner Ass Embly (contains Items 74-75)—Call for availability
3-P-348Pump Shaft (for Pump Suffix G)—Call for availability
3-P-311Pump Shaft (for Pump Suffix J.m)—Call for availability
3-P-310Pump Shaft (for Pump Suffix K, N, P, Q)—Call for availability
37897812-VOLT$25.82Add to Cart
21-P-166Pump Flange Interferes With—Call for availability
21-P-269Pump Flange Interferes With$112.83Add to Cart
328711XPump To P.t.o. Mounting$14.26Add to Cart
This is the complete factory parts breakdown for the Chelsea PTO 420 — every part in the manual, matched to our live inventory. We stock 66 of the 107 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 420 PTO helps you identify the correct gear sets, shifter kits and service parts for your power take-off before you order.

Models covered420
PTO typeChelsea 400 Series
DocumentIllustrated Parts List (Chelsea)
Length11 pages
FormatPDF — 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.

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