Engine Parts
Wiseco Piston Pol400 Std.
Part # 675M08300
$199.95
NY: 0
National: 1
- —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
- —Durability, longevity and increased horsepower
- —Innovative forging design and piston skirt provide maximum horsepower and torque
- —Features forged pistons, rings, wrist pins, and circlips
- —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
- —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
- —Cylinder sleeves must be purchased separately.
- —Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.
Calculated shipping at checkout
30-day returns on unused parts
Ships in 1–3 business days
Specifications
Bore - OversizeStandard
ModelForged Series
Piston Diameter82.92 mm
Skirt CoatingNon-Coated
Engine Type2-Stroke
Stroke Length70.00 mm
UnitsKit
Piston MaterialForged
Riding StyleATV
Displacement400 cc
Product NamePiston Kit
Stroke Length70,00 mm
Bore - OversizeStandard
Bore Size83.00 mm
Compression RatioStock
Piston Material4032 Aluminum Alloy
Weight1 lbs
Dimensions (L x W x H)4" x 3.6" x 3.5"
Fits These Vehicles (6)
Sportsman 4002003
Sportsman 4002002
Sportsman 4002001
Sportsman 400L1997
Sportsman 4001996
Sportsman 4001995
Not sure it fits? Call our Harley techs at 607-654-7431.





























