null
The STG Difference Free Domestic Shipping For Orders Over $99 Hassle Free Returns No Restocking Fees Price Match Guarantee Customer Rewards, Earn STG Cash

Wiseco Yamaha PW 50 1981-2020 GP Piston Kit with Gaskets 42mm

Click to see 1 more pictures
$150.77 $143.23
(You save $7.54)
STG SKU:
W|2457-PK1163|0

Customer Service

  • 888.784.4327
  • Monday-Friday
  • 10am to 6pm EST
  • Saturday
  • Closed
  • Free Domestic Shipping for Orders over $99Any domestic order (lower 48 United States) over $99.00 ships for free! If your item isn't over $99 but your total cart value is, you'll qualify for free shipping as well! For more information on our Shipping Policies, click here.
  • Hassle Free Returns No Restocking FeesHere at STG we want any return or exchange to be quick and pain-free. You can contact anyone here to expedite your return or exchange and we'll make sure it's handled ASAP. For more information on our policies, click here.
  • Price Match GuaranteeFind a better price? If you have we will match it! Call us at 888.784.4327 or submit a request here and our team will make it happen. *Some exclusions may apply.

Frequently Bought Together

Please choose Options for all selected Products

  • Choose Options

Features:

  • Forged from high-silicon aluminum alloy for maximum strength and dependability
  • Contain all necessary components for overboring or rebuilding your top end
  • Feature forged pistons, rings, wrist pins, circlips, and top end gasket
  • Cylinder sleeves must be purchased separately
  • Have additional features over standard Pro-Lite parts
  • Each piston is E-coated on the crown, ring grooves, and pin bore for maximum wear resistance and protection from micro-welding, galling, and detonation
  • Generally have less machining on the outside, which helps seal up the bore for increased compression
  • Additionally, boost ports are removed for a more predictable powerband and increased pull on the top end

Specifications:

  • Product Name: Rebuild Kit
  • Type: Top End
  • Model: Racer's Choice
  • Piston Material: Forged / Aluminum
  • Bore Size: 42.00 mm
  • Bore - Oversize: +2,00 mm / +2.00 mm
  • Displacement: 49 cc
  • Stroke Length: 39.20 mm
  • Cooling System: Air Cooled
  • Units: Each
  • Riding Style: Off-Road

Fitment:

YearMakeModel
1981YamahaPW 50
1982YamahaPW 50
1983YamahaPW 50
1984YamahaPW 50
1985YamahaPW 50
1986YamahaPW 50
1987YamahaPW 50
1988YamahaPW 50
1989YamahaPW 50
1990YamahaPW 50
1991YamahaPW 50
1992YamahaPW 50
1993YamahaPW 50
1994YamahaPW 50
1995YamahaPW 50
1996YamahaPW 50
1997YamahaPW 50
1998YamahaPW 50
1999YamahaPW 50
2000YamahaPW 50
2001YamahaPW 50
2002YamahaPW 50
2003YamahaPW 50
2004YamahaPW 50
2005YamahaPW 50
2006YamahaPW 50
2007YamahaPW 50
2008YamahaPW 50
2009YamahaPW 50
2010YamahaPW 50
2011YamahaPW 50
2012YamahaPW 50
2013YamahaPW 50
2014YamahaPW 50
2015YamahaPW 50
2016YamahaPW 50
2017YamahaPW 50
2018YamahaPW 50
2019YamahaPW 50
2020YamahaPW 50