Wiseco Piston Kit - 66.40 Mm - Gas Gas | Husaberg | Husqvarna | Ktm 856M06640

PISTON KIT 250SX

• HIGH-PERFORMANCE PISTONS
• Forged from high-silicon aluminum alloy for maximum strength and dependability
• Wiseco offers a complete range of popular piston models and years for both trail and racing applications
• WISECO FEATURES PRO-LITE PISTONS
• Durability, longevity and increased horsepower
• Innovative forging design and piston skirt provide maximum horsepower and torque
• PK PISTON AND GASKET KITS
• Contain all the necessary components for overboring or rebuilding your top end
• Feature forged pistons, rings, wrist pins, circlips and top end gasket set
• Cylinder sleeves must be purchased separately
• See price list on page ???
• WISECO PISTON PRICING
• All Wiseco High-Performance Motorcycle Pistons are priced with rings and circlips; see price list on page ???
• 4-STROKE RACER'S CHOICE PISTONS
• Now you can own the same race parts as all the top race teams
• These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer
• When blow-by starts to increase on other pistons and power starts to fade, Wiseco Race Series parts continue sealing and performing
• NOTE: Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.
• 2-STROKE GP SERIES PISTONS
• 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
• GP Series parts 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

KTM -- 250 SX -- (2016, 2010, 2009, 2013, 2014, 2006, 2011, 2015, 2007, 2012, 2005, 2008, 2020, 2003, 2004, 2022, 2021, 2023, 2024, 2025, 2019, 2017, 2018); KTM -- 250 EXC TPI -- (2020, 2021, 2022, 2019, 2018); KTM -- Freeride 250 R -- (2014, 2017, 2015, 2016); KTM -- 250 EXC -- (2008, 2011, 2017, 2007, 2009, 2015, 2016, 2010, 2012, 2006, 2013, 2014); Husqvarna -- TE 250i -- (2019, 2020, 2018, 2021, 2022, 2023, 2024, 2025); Husqvarna -- TC 250 -- (2020, 2021, 2022, 2023, 2024, 2025, 2018, 2016, 2015, 2017, 2019, 2014); Husqvarna -- TE 250 R -- (2014); Husqvarna -- TC 250 R -- (2015, 2014); Husqvarna -- TC 250 Heritage -- (2023); Husqvarna -- TE 250 -- (2015, 2016, 2014, 2017); Gas Gas -- EC 250 -- (2022, 2021, 2023, 2024, 2025); Gas Gas -- EX 250 -- (2022, 2025, 2023, 2024); Gas Gas -- MC 250 -- (2022, 2024, 2023, 2025); Husaberg -- TE 250 -- (2011, 2014, 2012, 2013)