Sea-doo OEM Part 420945880 Lock Ring
- Product Code: 420945880
$3.61
- Genuine Sea-doo, Ski-Doo OEM part
- New in original packaging
- Fits the models listed in the fitment chart
- Easy, no-hassle returns
This product is vehicle specific.
Find your vehicle to make sure this part fits before you order.
Ships in 4 to 9 days
Genuine Sea-doo OEM Lock Ring (part number 420945880) from the Crankcase, Rotary Valve diagram. It fits Sea-doo models built from 1996 to 2026.
See the Fitment tab for the full list with model codes.
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Year, make and model of your machine
VIN or frame / serial number
OEM part number or a photo of the old part
Find your ride
Check your current ride below to confirm product compatibility.
Sea-doo
2026
2025
2002
2001
2000
1999
1998
1997
1996
2005
2004
Ski-Doo
2003
2001
2000
1999
1998
1997
2005
1996
- Sea-doo CRUISE 21 - 300 - 46TA - Dusty Navy - Trailer Galv - CAT-1-30-101 - 2026 ROTAX - Magneto and Electric Starter
- Sea-doo SPORT 18 - 300 - 49TM - Neo Mint - Trailer paint - CAT-1-30-101 - 2026 ROTAX - Magneto and Electric Starter
- Sea-doo GTX - 325 - LIMITED - 26TC - Hybrid White Peal - Audio, 2026 ROTAX - Magneto and Electric Starter
- Sea-doo RXP - 325 - X - 23TC - Gulfstream Blue, 2026 ROTAX - Magneto and Electric Starter
- Sea-doo GTX - 325 - LIMITED - 26SB - Teal Blue Metalic - Audio, 2025 ROTAX - Magneto and Electric Starter
- Sea-doo GTX - 325 - LIMITED - 26SB - Teal Blue Metalic - Audio, 2025 ROTAX - SuperCharger
- Sea-doo RXP - 325 - X - 23SB - Ice Metal - Audio, 2025 ROTAX - Magneto and Electric Starter
- Sea-doo RXP - 325 - X - 23SB - Ice Metal - Audio, 2025 ROTAX - SuperCharger
- Sea-doo RXP X 325 - 21RC - X package - Fiery Red Metallic,2024 ROTAX - Magneto and Electric Starter
- Sea-doo RXP X 325 - 21RC - X package - Fiery Red Metallic,2024 ROTAX - Supercharger
- Ski-Doo Grand Touring 380 F/550 F, 2003 Cooling System And Fan
- Ski-Doo Grand Touring 380 F/500 F, 2002 Cooling System And Fan
- Ski-Doo Formula Deluxe 380 F, 2001 Cooling System And Fan
- Ski-Doo Formula Deluxe 500 F, 2001 Cooling System And Fan
- Ski-Doo Formula Deluxe 380/500, 2000 Cooling System And Fan
- Ski-Doo Formula Deluxe 380/500, 1999 Cooling System Fan
- Ski-Doo Formula S, 1999 Cooling System Fan
- Ski-Doo Formula S Electric, 1998 Cooling System Fan
- Ski-Doo Formula Sl, 1998 Cooling System Fan (503)
- Ski-Doo Formula S, 1997 Cooling System Fan (377)
- Ski-Doo Skandic LT 440F, 2005 Cooling System
- Ski-Doo Skandic SUV 550F, 2005 Cooling System (550)
- Ski-Doo Skandic SWT 550F, 2005 Cooling System (550F)
- Ski-Doo Legend 380F, 2004 Cooling System (380F)
- Ski-Doo Legend 550F, 2004 Cooling System (550F)
- Ski-Doo Skandic LT 440F, 2004 Cooling System
- Ski-Doo Skandic SUV 550F, 2004 Cooling System (552)
- Ski-Doo Skandic WT/SWT 550F , 2004 Cooling System (552)
- Ski-Doo Legend 380F/550F, 2003 Cooling System And Fan
- Ski-Doo Skandic 500F, 2003 Cooling System And Fan
- Ski-Doo Skandic 600, 2003 Cooling System Fan (503)
- Ski-Doo Skandic LT 440F, 2003 Cooling System And Fan
- Ski-Doo Summit 550 F, 2003 Cooling System And Fan
- Ski-Doo Legend 380F/500F, 2002 Cooling System And Fan
- Ski-Doo Skandic 440, 2002 Cooling System And Fan
- Ski-Doo Skandic 500/600, 2002 Cooling System Fan (503)
- Ski-Doo Summit 500 F, 2002 Cooling System And Fan
- Ski-Doo Skandic 440F, 2001 Cooling System And Fan
- Ski-Doo Skandic 500F/600, 2001 Cooling System Fan (503)
- Ski-Doo Summit 500 F, 2001 Cooling System And Fan
- Ski-Doo Touring 380 F/500F, 2001 Cooling System And Fan
- Ski-Doo MX Z 440, 2000 Cooling System And Fan
- Ski-Doo Skandic 380/500, 2000 Cooling System And Fan (377)
- Ski-Doo Skandic Super Wide Track, 2000 Cooling System Fan (503)
- Ski-Doo Touring E, 2000 Cooling System And Fan (377)
- Ski-Doo MX Z 440, 1999 Cooling System And Fan
- Ski-Doo Skandic 380/500, 1999 Cooling System And Fan (377)
- Ski-Doo Skandic Super Wide Track, 1999 Cooling System Fan (503)
- Ski-Doo Touring E, 1999 Cooling System Fan (377)
- Ski-Doo MX Z 440 F, 1998 Cooling System Fan
- Ski-Doo Skandic 380/500, 1998 Cooling System Fan (377)
- Ski-Doo Skandic Super Wide Track, 1998 Cooling System Fan (503)
- Ski-Doo Touring E, 1998 Cooling System Fan (377)
- Ski-Doo MX Z 440 F/Z 583/Z 670 1997 Cooling System Fan (440F)
- Ski-Doo Skandic 380/500, 1997 Cooling System Fan (377)
- Ski-Doo Skandic Super Wide Track, 1997 Cooling System Fan (503)
- Ski-Doo Skandic Wide Track, 1997 Cooling System Fan
- Ski-Doo Formula S, 1996 Cooling System (377)
- Ski-Doo Formula SL, 1996 Cooling System (503)
- Ski-Doo Skandic 380, 1996 Cooling System (377)
- Ski-Doo Skandic 500, 1996 Cooling System (503)
- Ski-Doo Skandic Wide Track, 1996 Cooling System
- Ski-Doo Touring E LT, 1996 Cooling System (377)
- Ski-Doo Touring LE, 1996 Cooling System (443)
- Ski-Doo Touring SLE, 1996 Cooling System (503)
- Sea-doo Explorer, 5455, 2002 Crankcase, Rotary Valve
- Sea-doo Sportster LT, 5493, 2002 Crankcase, Rotary Valve
- Sea-doo Challenger, 5699, 2001 Crankcase, Rotary Valve
- Sea-doo Challenger, 5672, 2000 Crankcase, Rotary Valve
- Sea-doo Sportster, 5673, 2000 Crankcase, Rotary Valve
- Sea-doo Challenger 1800, 5675/5679, 1999 Crankcase, Rotary Valve
- Sea-doo Speedster, 5678, 1999 Crankcase, Rotary Valve
- Sea-doo Speedster SK, 5677/5681, 1999 Crankcase, Rotary Valve
- Sea-doo Sportster 1800, 5676/5680, 1999 Crankcase, Rotary Valve
- Sea-doo Challenger, 5612, 1998 Crankcase, Rotary Valve
- Sea-doo Challenger 1800, 5611/5616, 1998 Crankcase, Rotary Valve
- Sea-doo Speedster, 5615, 1998 Crankcase, Rotary Valve
- Sea-doo Sportster, 5614, 1998 Crankcase, Rotary Valve
- Sea-doo Sportster 1800, 5613/5618, 1998 Crankcase, Rotary Valve
- Sea-doo Challenger, 5603/5606, 1997 Crankcase, Rotary Valve
- Sea-doo Challenger 1800, 5600/5601, 1997 Crankcase, Rotary Valve
- Sea-doo Explorer, 5824, 1997 Crankcase, Rotary Valve
- Sea-doo Speedster, 5602/5608, 1997 Crankcase, Rotary Valve
- Sea-doo Sportster, 5605/5609, 1997 Crankcase, Rotary Valve
- Sea-doo Challenger, 5896, 1996 Crankcase And Rotary Valve
- Sea-doo Explorer, 5823, 1996 Crankcase And Rotary Valve
- Sea-doo Speedster, 5894, 1996 Crankcase And Rotary Valve
- Sea-doo 3D RFI, 2005 Crankcase And Rotary Valve
- Sea-doo GTI LE RFI, 2005 Crankcase And Rotary Valve
- Sea-doo GTI, 2005 Crankcase And Rotary Valve
- Sea-doo 3D RFI, 2004 Crankcase And Rotary Valve
- Sea-doo GTI LE RFI, 2004 Crankcase And Rotary Valve
- Sea-doo GTI LE, 2004 Crankcase, Rotary Valve
- Sea-doo GTI LE RFI, 6103/6104, 2003 Crankcase And Rotary Valve
- Sea-doo GTI LE, 2003 Crankcase, Rotary Valve
- Sea-doo GTI LE, 5560/5561/6117, 2002 Crankcase, Rotary Valve
- Sea-doo GTI, 5558/5559/6116, 2002 Crankcase, Rotary Valve
- Sea-doo GTX RFI, 5566/5565, 2002 Crankcase And Rotary Valve
- Sea-doo GS, 5518/5519, 2001 Crankcase, Rotary Valve
- Sea-doo GS, 5548, 2001 Crankcase, Rotary Valve
- Sea-doo GSX RFI, 5549, 2001 Crankcase, Rotary Valve
- Sea-doo GTI, 5522/5523, 2001 Crankcase, Rotary Valve
- Sea-doo GTI, 5552, 2001 Crankcase, Rotary Valve
- Sea-doo GTS, 5551, 2001 Crankcase, Rotary Valve
- Sea-doo GTX RFI, 5524/5525/5553/5555, 2001 Crankcase And Rotary Valve
- Sea-doo GS, 5644/5827, 2000 Crankcase, Rotary Valve
- Sea-doo GSX RFI, 5645/5654, 2000 Crankcase, Rotary Valve
- Sea-doo GTI, 5647/5657, 2000 Crankcase, Rotary Valve
- Sea-doo GTS, 5639, 2000 Crankcase, Rotary Valve
- Sea-doo GTX RFI, 5648/5658/5515/5516, 2000 Crankcase, Rotary Valve
- Sea-doo GS, 5846/5847, 1999 Crankcase, Rotary Valve
- Sea-doo GSX RFI, 5637/5638/5652/5829, 1999 Crankcase, Rotary Valve
- Sea-doo GTI, 5884/5885, 1999 Crankcase, Rotary Valve
- Sea-doo GTS, 5883, 1999 Crankcase, Rotary Valve
- Sea-doo GTX RFI, 5886/5887, 1999 Crankcase, Rotary Valve
- Sea-doo SPX, 5636/5828, 1999 Crankcase, Rotary Valve (787)
- Sea-doo GS, 5626/5844, 1998 Crankcase, Rotary Valve
- Sea-doo GTI, 5836/5841, 1998 Crankcase, Rotary Valve
- Sea-doo GTS, 5819, 1998 Crankcase, Rotary Valve
- Sea-doo GTX RFI, 5666/5843, 1998 Crankcase, Rotary Valve
- Sea-doo SPX, 5838/5839, 1998 Crankcase, Rotary Valve (787)
- Sea-doo GS,5621/GSI, 5622, 1997 Crankcase, Rotary Valve
- Sea-doo GSX, 5624, 1997 Crankcase, Rotary Valve
- Sea-doo GTI, 5641, 1997 Crankcase, Rotary Valve
- Sea-doo GTX, 5642, 1997 Crankcase, Rotary Valvecarter, Valve Rotative
- Sea-doo HX, 5882, 1997 Crankcase, Rotary Valve
- Sea-doo SP, 5879, 1997 Crankcase, Rotary Valve (717)
- Sea-doo SPX, 5834-5661, 1997 Crankcase, Rotary Valve (787)
- Sea-doo XP, 5662, 1997 Crankcase, Rotary Valve
- Sea-doo GSX, 5620, 1996 Crankcase And Rotary Valve
- Sea-doo GTI, 5865, 1996 Crankcase And Rotary Valve (717)
- Sea-doo GTS, 5817, 1996 Crankcase And Rotary Valve (587)
- Sea-doo GTX, 5640, 1996 Crankcase And Rotary Valve
- Sea-doo HX, 5881, 1996 Crankcase And Rotary Valve
- Sea-doo SP, 5876, 1996 Crankcase And Rotary Valve (587)
- Sea-doo SPX, 5877, 1996 Crankcase And Rotary Valve (717)
- Sea-doo XP, 5858, 1996 Crankcase And Rotary Valve
- Ski-Doo EXPEDITION SPORT 550F - 2020 Engine - Fan and Cylinder Cowls - 550F
- Ski-Doo EXPEDITION SPORT 550F, 2019 Fan and Cylinder Cowls - 550F
- Ski-Doo EXPEDITION SPORT 550F, 2018 Fan and Cylinder Cowls - 550F
- Ski-Doo EXPEDITION - 2-STROKE - SPORT, 2017 Fan and Cylinder Cowls - 550F
- Ski-Doo SKANDIC - 2-STROKE - WT-SWT, 2017 Fan And Cylinder Cowls - 550F
- Ski-Doo TUNDRA - 2-STROKE - WT Europe, 2017 Fan And Cylinder Cowls
- Ski-Doo EXPEDITION - SPORT 2-STROKE, 2016 Fan and Cylinder Cowls - 550F
- Ski-Doo SKANDIC - 2-STROKE, 2016 Fan Housing - 550F
- Ski-Doo Expedition Sport 550F XP154, 2015 Fan And Cylinder Cowls _54R1518
- Ski-Doo Skandic SWT 550, 2015 Fan _04R1547
- Ski-Doo Skandic WT 550, 2015 Fan _04R1546
- Ski-Doo Tundra WT 550 RER, 2015 Fan _04R1545
- Ski-Doo EXPEDITION SPORT 550F XP, 2014 Fan And Cylinder Cowls
- Ski-Doo Skandic SWT 550F XU, 2014 Fan
- Ski-Doo Skandic WT 550F XU, 2014 Fan
- Ski-Doo TUNDRA WT 550F RER XU, 2014 Fan
- Ski-Doo EXPEDITION SPORT 550F XP, 2013 Fan And Cylinder Cowls
- Ski-Doo Skandic WT 550F XU, 2013 Fan And Cylinder Cowls
- Ski-Doo Expedition Sport 550F XP-FAN, 2012 Fan And Cylinder Cowls
- Ski-Doo Skandic WT 550F XU, 2012 Fan Housing
- Ski-Doo Expedition Sport 550F XP-FAN, 2011 Fan & Cylinder Cowls
- Ski-Doo Skandic WT 550F YetiII, 2011 Fan
- Ski-Doo Grand-Touring Sport 550F, 2010 Fan & Cylinder Cowls
- Ski-Doo Skandic SUV 550F, 2010 Fan
- Ski-Doo Freestyle Back Country, 2009 Fan & Cylinder Cowls V2
- Ski-Doo GSX Fan, 2009 Fan & Cylinder Cowls V1
- Ski-Doo Skandic SUV, 2009 Fan
- Ski-Doo Skandic WT 550F, 2009 Fan
- Ski-Doo Expedition Sport 550F, 2008 Fan & Cylinder Cowls V2
- Ski-Doo GSX 550F, 2008 Fan & Cylinder Cowls V1
- Ski-Doo Skandic SUV 550F, 2008 Fan 550F
- Ski-Doo Skandic SWT 550F, 2008 Fan SWT 550F
- Ski-Doo Skandic WT 550F, 2008 Fan WT 550F
- Ski-Doo Expedition Sport 550F, 2007 Fan & Cylinder Cowls 2
- Ski-Doo GSX 550F, 2007 Fan & Cylinder Cowls 1
- Ski-Doo Skandic LT 440F, 2007 Fan
- Ski-Doo Skandic SUV 550F, 2007 Fan 550F SUV
- Ski-Doo Skandic SWT 550F, 2007 Fan 552
- Ski-Doo Expedition 550F, 2006 Fan
- Ski-Doo GSX 380F, 2006 Fan GSX 377
- Ski-Doo GSX 550F, 2006 Fan GSX 552
- Ski-Doo GTX 380F, 2006 Fan 380F
- Ski-Doo GTX 550F, 2006 Fan 552
- Ski-Doo MX Z 380F, 2006 Fan MX Z 377
- Ski-Doo MX Z 550F, 2006 Fan MX Z 552
- Ski-Doo Skandic LT 440F, 2006 Cooling System
- Ski-Doo Skandic SUV 550F, 2006 Fan
- Ski-Doo Skandic SWT 550F, 2006 Fan 552
- Ski-Doo Summit 550F, 2006 Fan 552
- Ski-Doo Expedition 550F, 2005 Fan
- Ski-Doo GSX 380F, 2005 Fan 377
- Ski-Doo GSX 550F, 2005 Fan 552
- Ski-Doo GTX 380F, 2005 Fan 377
- Ski-Doo GTX 550F, 2005 Fan 552
- Ski-Doo Summit 550F, 2005 Fan
- Ski-Doo Formula 500 LC, 2000 Crankcase, Rotary Valve, Water Pump
- Ski-Doo Skandic 380/500, 2000 Cooling System And Fan (503)
- Ski-Doo Skandic Super Wide Track, 2000 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Touring 500 LC, 2000 Crankcase, Rotary Valve, Water Pump
- Ski-Doo Touring E, 2000 Cooling System And Fan (443, 503)
- Ski-Doo Formula Deluxe 500 LC/583/670, 1999 Crankcase, Rotary Valve, Water Pump (494,670)
- Ski-Doo Formula Deluxe 500 LC/583/670, 1999 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo Formula Z 500/583/670, 1999 Crankcase, Rotary Valve, Water Pump (494, 670)
- Ski-Doo Formula Z 500/583/670, 1999 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo Grand Touring 500/583, 1999 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Grand Touring 500/583, 1999 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo MX Z 500/670 HO, 1999 Crankcase, Rotary Valve, Water Pump
- Ski-Doo MX Z 670 HO T.H., 1999 Crankcase, Rotary Valve, Water Pump
- Ski-Doo Skandic 380/500, 1999 Cooling System And Fan (503)
- Ski-Doo Skandic Super Wide Track, 1999 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Summit 500/X 670, 1999 Crankcase, Rotary Valve, Water Pump
- Ski-Doo Touring E, 1999 Cooling System Fan (443, 503)
- Ski-Doo Formula 500 Deluxe, 1998 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Formula 500 Deluxe, 1998 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo Formula Z 670, 1998 Crankcase, Rotary Valve, Water Pump
- Ski-Doo Grand Touring 500/583, 1998 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Grand Touring 500/583, 1998 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo MX Z 500/583/670, 1998 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo MX Z 500/583/670, 1998 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo MX Z 500/583/670, 1998 Crankcase, Rotary Valve, Water Pump (670)
- Ski-Doo MX Z X 400 LC, 1998 Crankcase, Rotary Valve, Water Pump
- Ski-Doo Skandic 380/500, 1998 Cooling System Fan (503)
- Ski-Doo Skandic Super Wide Track, 1998 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Summit 500/583/670, 1998 Crankcase, Rotary Valve, Water Pump (494, 670)
- Ski-Doo Summit 500/583/670, 1998 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo Summit 670X, 1998 Crankcase, Rotary Valve, Water Pump (670)
- Ski-Doo Touring E, 1998 Cooling System Fan (503, 443)
- Ski-Doo Formula 500 Deluxe, 1997 Crankcase, Rotary Valve, Water Pump
- Ski-Doo Formula 500 Deluxe, 1997 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Formula S, 1997 Cooling System Fan (503)
- Ski-Doo Grand Touring 500/583, 1997 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Grand Touring 500/583, 1997 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo MX Z 440 F/Z 583/Z 670 1997 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo MX Z 440 F/Z 583/Z 670 1997 Crankcase, Rotary Valve, Water Pump (670)
- Ski-Doo MX Z 440 LC, 1997 Crankcase, Rotary Valve, Water Pump
- Ski-Doo Skandic 380/500, 1997 Cooling System Fan (503)
- Ski-Doo Skandic Super Wide Track, 1997 Crankcase, Rotary Valve, Water Pump (494)
- Ski-Doo Summit 500/583/670, 1997 Crankcase, Rotary Valve, Water Pump (494, 670)
- Ski-Doo Summit 500/583/670, 1997 Crankcase, Rotary Valve, Water Pump (583)
- Ski-Doo Touring E LT, 1997 Fan (377)
- Ski-Doo Touring E LT, 1997 Fan (503, 443)
- Ski-Doo Formula SLS, 1996 Crankcase (494)
- Ski-Doo Formula SS, 1996 Crankcase (670)
- Ski-Doo Formula STX LT(2), 1996 Crankcase
- Ski-Doo Formula Z, 1996 Crankcase (583)
- Ski-Doo Grand Touring 500, 1996 Crankcase (500)
- Ski-Doo Grand Touring 580, 1996 Crankcase (580)
- Ski-Doo Grand Touring 670SE, 1996 Crankcase (670SE)
- Ski-Doo Mach 1, 1996 Crankcase (670)
- Ski-Doo MX Z 440, 1996 Crankcase (440)
- Ski-Doo MX Z 583, 1996 Crankcase (583)
- Ski-Doo MX Z 670, 1996 Crankcase
- Ski-Doo Summit 500, 1996 Crankcase (500)
- Ski-Doo Summit 583, 1996 Crankcase (583)
- Ski-Doo Summit 670, 1996 Crankcase (670)
Part Details
| Brand | Sea-doo |
| Sku | 420945880 |
| Name | Lock Ring |
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