ATHENA Piston Kit - 53.95 mm - Yamaha YZ125 [S4F05400011B]

MSRP: $147.95

$127.31

(You save $20.64 )

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Manufacturer Part Number:

S4F05400011B

Parts Unlimited Part Number:

09100091

Parts API Product ID:

2022078213

Parts Status:

STANDARD

Product Type:

Piston & Ring Kits

Parts Fitment Count:

Parts Missing >130 Batch:

PARTS_MISSING_OVER130_POSITIVE_STOCK_FREEDOM_20260826

Parts Missing >130 Plan SHA256:

0C658F52D7FCC29CFA5B39C6BDB67D100D17FAF5D8BD9CD14EB7FA79BF48A7B9

Parts Sealed Image SHA256:

34F3377C29D893B3870EAFBD2DA280BFF67CF1D500C0F8A61B0634C4A81D587D

ATHENA Piston Kit - 53.95 mm - Yamaha YZ125 [S4F05400011B]

Manufacturer Part Number: S4F05400011B

Parts Unlimited Part Number: 09100091

Product Type: Piston & Ring Kits

Piston Kit - 53.95 mm - Yamaha YZ125

Product Name: Piston Kit
Type: B
Bore Size: 53.95 mm
Engine Type: 2-Stroke
Piston Head Shape: Domed
Units: Kit
Compression Ratio: Stock
Piston Material: 4032 Aluminum Alloy
Style: Forged Race
Displacement: 124 cc
Riding Style: Off-Road
High resistance to mechanical and thermal stresses
Has been tested on engine dynamometer benches under progressive stress load, and thereafter on track to validate it performance even in the most extreme conditions
Equipped with piston rings that guarantee less friction with the OE cylinder producing a higher performance
Made by reverse extrusion
For OE cylinder.