Quad Parts

Piston Kit Forged Series for 4-Stroke Yamaha — Selected Models; See Fitment

WISECOPart no. W4939M08450

Our price £193.27

RRP £203.44Save £10.17 (5%)

Price includes applicable VAT. Delivery calculated separately.

Product details

Piston Kit Forged Series for 4-Stroke Forged 4-stroke piston is designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength Dedicated forgings allow for optimized strength-to-weight ratio Ideal for multiple purpose riding Kit includes piston, wrist pin, rings and circlips Kit Includes: • 1x Piston • 1x Ring Set #8450XX • 1x Wrist Pin #S520 • 1x Circlip Set #CW20

Supplier reference: 09102851
Manufacturer reference: W4939M08450

Dimensions & specification
Skirt Coating
ArmorGlide®
Compression Ratio
11,0:1
Engine Type
4-Stroke
Units
Kit
Piston Diameter Metric
84.45 mm
Piston Material
Forged 2618 Aluminum
Product Name
Piston Kit
Bore - Oversize
Standard
Riding Style
ATV| UTV
Model
Forged Series
Stroke Length
75,00 mm
Bore Size
84,50 mm
Bore - Oversize Metric
Standard
Piston Diameter
84,45 mm
Displacement
420 cc
Compression Ratio Imperial
11.0:1
Bore Size Metric
84.50 mm
Stroke Length Metric
75.00 mm
Delivery & returns

UK standard delivery: 6–10 working days. In-stock parts dispatch within 2–3 working days.

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Compare your model, year and exact variant, then check the number on your original part.

Vehicle fitment

All 42 supplier-listed applications. Match your complete model, year, position and any notes.

Complete supplier-listed applications for W4939M08450
MakeModel & variantYearVehicle typeVehicle IDVariantMarket
YAMAHAYFM 450 FA 4X420035ND28499KodiakAMERICA
YAMAHAYFM 450 FA 4X420045ND28503KodiakAMERICA
YAMAHAYFM 450 FA 4X420051D928507KodiakAMERICA
YAMAHAYFM 450 FA 4X420061D928513KodiakAMERICA
YAMAHAYFM 450 FA SE 4X420051D928511Kodiak Black CarbonAMERICA
YAMAHAYFM 450 FA SE 4X420061D928517Kodiak Special EditionAMERICA
YAMAHAYFM 450 FAH 4X420035ND28501Kodiak RealtreeAMERICA
YAMAHAYFM 450 FAH 4X420045ND28505Kodiak HardwoodsAMERICA
YAMAHAYFM 450 FAH 4X420051D928509Kodiak HunterAMERICA
YAMAHAYFM 450 FAH 4X420061D928515Kodiak HunterAMERICA
YAMAHAYFM 450 FG 4X420071D928533GrizzlyAMERICA
YAMAHAYFM 450 FG 4X4200817S28541GrizzlyAMERICA
YAMAHAYFM 450 FG 4X4200917S28547GrizzlyAMERICA
YAMAHAYFM 450 FG 4X4201017S28551GrizzlyAMERICA
YAMAHAYFM 450 FG 4X420111CT50051GrizzlyAMERICA
YAMAHAYFM 450 FG OH 4X420071D928537Grizzly Outdoorsman EditionAMERICA
YAMAHAYFM 450 FG SE 4X420071D928539Grizzly Silver EditionAMERICA
YAMAHAYFM 450 FG SP 4X4200817S28545Grizzly Special EditionAMERICA
YAMAHAYFM 450 FGH 4X420071D928535Grizzly HunterAMERICA
YAMAHAYFM 450 FGH 4X4200817S28543Grizzly HunterAMERICA
YAMAHAYFM 450 FGH 4X4200917S28549Grizzly HunterAMERICA
YAMAHAYFM 450 FGH 4X4201017S28553Grizzly HunterAMERICA
YAMAHAYFM 450 FGH 4X420111CT50053Grizzly HunterAMERICA
YAMAHAYFM 450 FGP 4X420111CT50055Grizzly EPSAMERICA
YAMAHAYFM 450 FGPH 4X420111CT50057Grizzly EPS HunterAMERICA
YAMAHAYFM 450 FX 4X420063C228519Wolverine SportAMERICA
YAMAHAYFM 450 FX 4X420073C228521Wolverine SportAMERICA
YAMAHAYFM 450 FX 4X420083C228525Wolverine SportAMERICA
YAMAHAYFM 450 FX 4X420093C228529Wolverine SportAMERICA
YAMAHAYFM 450 FX 4X420103C228531Wolverine SportAMERICA
YAMAHAYFM 450 FX SE 4X420073C228523Wolverine Sport SEAMERICA
YAMAHAYFM 450 FX SE 4X420083C228527Wolverine Sport SEAMERICA
YAMAHAYXR 450 F 4X420072P528601RhinoAMERICA
YAMAHAYXR 450 F 4X420082P528607RhinoAMERICA
YAMAHAYXR 450 F 4X420092P528613RhinoAMERICA
YAMAHAYXR 450 F SE 4X420072P528605Rhino Special EditionAMERICA
YAMAHAYXR 450 F SP 4X420082P528611Rhino Special EditionAMERICA
YAMAHAYXR 450 FA 4X420062P528597RhinoAMERICA
YAMAHAYXR 450 FAH 4X420062P528599Rhino Hunter Realtree CamoAMERICA
YAMAHAYXR 450 FH 4X420072P528603Rhino HunterAMERICA
YAMAHAYXR 450 FH 4X420082P528609Rhino HunterAMERICA
YAMAHAYXR 450 FH 4X420092P528615Rhino HunterAMERICA
Piston Kit Forged Series for 4-Stroke Yamaha — Selected Models; See Fitment
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