Parts Unlimited OEM-Type Piston Assembly - 78.5mm Bore - 09-773-2

  • Part #: 138333
  • Manufacturer Part #: 09-773-2
  • Our Price: $43.95
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138333
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Overview of Parts Unlimited OEM-Type Piston Assembly - 78.5mm Bore - 09-773-2

  • Dennis Kirk has high-quality, OEM-type piston assemblies to fit most popular snowmobiles
  • These pistons more closely match the original equipment in ring design, construction and weight than our other aftermarket pistons
  • Its not necessary to replace both pistons in a twin-cylinder engine if you need only one
  • All piston assemblies include rings(s), wrist pin and circlips


  • Replacement Ring Set: 138333R
    Replacement Wrist Pin: S631
    Replacement Circlips: 14420

    NOTE: Dennis Kirk recommends the following preliminary work to be performed by a qualified mechanic prior to installing new pistons. If the old piston has failed, determine the cause and remedy the problem before replacing. Air leaks and/or a lean fuel mixture are the two biggest causes of burned pistons. In cases where any part of the old piston is broken or burned through, the crankcase should be disassembled and throughly flushed of any debris.

    Our pistons, rings and kits are sold by application and bore size. Please note that STANDARD and OVERSIZES are not indicated. To get the correct part, you must know the standard bore size to make sure you are ordering either the standard or correct amount of oversize that you need. If you have any questions, please call Technical Service.


Specs

Bore Size 78.5mm
Type Piston Assembly
Units Each
Weight 1.18 lbs

Specs for Parts Unlimited OEM-Type Piston Assembly - 78.5mm Bore - 09-773-2

Bore Size 78.5mm
Type Piston Assembly
Units Each
Weight 1.18 lbs

Fitment for Parts Unlimited OEM-Type Piston Assembly - 78.5mm Bore - 09-773-2

Part 138333 fits the following machines

See if this part fits your ride

Ski-Doo
1999 Ski-Doo Formula 670 Dlx
1993 Ski-Doo Formula Mach 1
1992 Ski-Doo Formula Mach 1 X
1996 Ski-Doo Formula SS
1995 Ski-Doo Formula SS
1999 Ski-Doo Formula Z 670
1998 Ski-Doo Formula Z 670
1996 Ski-Doo Grand Touring 670 SE
1995 Ski-Doo Grand Touring 670 SE
1994 Ski-Doo Grand Touring 670 SE
1998 Ski-Doo MX-Z 670
1997 Ski-Doo MX-Z 670
1996 Ski-Doo Mach 1
1995 Ski-Doo Mach 1
1994 Ski-Doo Mach 1
1998 Ski-Doo Summit 670
1997 Ski-Doo Summit 670
1996 Ski-Doo Summit 670
1995 Ski-Doo Summit 670

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Instructions and Media for Parts Unlimited OEM-Type Piston Assembly - 78.5mm Bore - 09-773-2

Instructions - PDF Instructions - PDF Instructional PDF
Video Installation: How to Install Snowmobile Piston Rings: Parts Unlimited Piston Kits Instructional Video 3:39
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