🎉 Up to 70% Off Selected ItemsShop Sale
HomeStore

PISTON KIT 02-04 YZ125 54.00 A, WOSSNER 8072DA YAMAHA MX 5NY-11631-01-D0

Product image 1

PISTON KIT 02-04 YZ125 54.00 A, WOSSNER 8072DA YAMAHA MX 5NY-11631-01-D0

PISTON KIT 02-04 YZ125 54.00 A, WOSSNER 8072DA YAMAHA MX 5NY-11631-01-D0

This Wossner piston kit features a 54.00mm bore and 53.94mm actual piston diameter, designed for Yamaha YZ125 models from 2002 to 2004. Built with forged construction, it delivers strength, optimal heat transfer, and consistent performance for 2-stroke engines under demanding conditions.



Features





  • Forged piston construction enhances durability and structural integrity




  • Promotes efficient heat transfer from the combustion chamber to the cylinder walls




  • Elliptical design ensures uniform bearing surface under thermal expansion




  • Distributes thrust loads evenly to reduce localised pressure and prevent piston collapse




  • Manufactured in Germany





Specifications





  • Bore: 54.00mm




  • Piston Diameter: 53.94mm




  • Display (cm³): 125




  • Stroke (mm): 54.50




  • Clearance (mm): 0.06




  • Compression Height (mm): 28.00




  • Wossner Compression Ratio: 2-stroke




  • OEM Compression Ratio: 2-stroke





Cross-Reference OEM Part Numbers





  • 5NY-11631-01-D0




  • 5NY-11631-01-C0




  • 5NY-11631-01-B0




  • 5NY-11631-01-A0




  • 797M05400




  • 09104787




  • Ring: 5NY-11611-00-00




  • Pin: 5UN-11633-00-00




  • Circlip: 93450-16068-00





Vehicle Fitments





  • Yamaha YZ125 2002–2004





Included Components





  • Lock: CW15




  • Pin: WP032




  • Ring Set: RSB5400




  • Rod: P2017




  • Part Number: 56-W797.A.WO (Piston PN# 8072DA)



$73.75

Original: $210.72

-65%
PISTON KIT 02-04 YZ125 54.00 A, WOSSNER 8072DA YAMAHA MX 5NY-11631-01-D0—

$210.72

$73.75

Product Information

Shipping & Returns

Description

This Wossner piston kit features a 54.00mm bore and 53.94mm actual piston diameter, designed for Yamaha YZ125 models from 2002 to 2004. Built with forged construction, it delivers strength, optimal heat transfer, and consistent performance for 2-stroke engines under demanding conditions.



Features





  • Forged piston construction enhances durability and structural integrity




  • Promotes efficient heat transfer from the combustion chamber to the cylinder walls




  • Elliptical design ensures uniform bearing surface under thermal expansion




  • Distributes thrust loads evenly to reduce localised pressure and prevent piston collapse




  • Manufactured in Germany





Specifications





  • Bore: 54.00mm




  • Piston Diameter: 53.94mm




  • Display (cm³): 125




  • Stroke (mm): 54.50




  • Clearance (mm): 0.06




  • Compression Height (mm): 28.00




  • Wossner Compression Ratio: 2-stroke




  • OEM Compression Ratio: 2-stroke





Cross-Reference OEM Part Numbers





  • 5NY-11631-01-D0




  • 5NY-11631-01-C0




  • 5NY-11631-01-B0




  • 5NY-11631-01-A0




  • 797M05400




  • 09104787




  • Ring: 5NY-11611-00-00




  • Pin: 5UN-11633-00-00




  • Circlip: 93450-16068-00





Vehicle Fitments





  • Yamaha YZ125 2002–2004





Included Components





  • Lock: CW15




  • Pin: WP032




  • Ring Set: RSB5400




  • Rod: P2017




  • Part Number: 56-W797.A.WO (Piston PN# 8072DA)



You may also like

NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR KX KDX FLAME, MOTO-MASTER 110384

$201.38

NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR RM125/250 JT, JTD3100SC01 SUZUKI, SELF-CLEANING HOLES

$69.35

NEW
Thumbnail 1

DISC BRAKE REAR RM DRZ DIRT, PSYCHIC MX-05514W 18-0041

$85.35

NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR KX KDX OEM CC, CROSS-CENTER PRODUCT 5100-214

$144.04

NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR KX KDX SOLID, CROSS-CENTER 5100-013 SOLD

$110.69

-65%NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR RM/DRZ SOLID, CROSS-CENTER PRODUCT 5100-43

$110.69

$38.74

-65%NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR RM DRZ FLAME, MOTO-MASTER 110221

$201.38

$70.48

-65%NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR RM DRZ CC, CROSS-CENTER PRODUCT 5100-42

$144.04

$50.41

NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR HUSKY SOLID CC, CROSS-CENTER PRODUCT 5100-73

$110.69

NEW
Thumbnail 1

DISC REAR HUSKY MOTO-MASTER FLAME, HUSQVARNA 110261

$201.38

NEW
Thumbnail 1Thumbnail 2

DISC BRAKE REAR HUSKY 92-99 CC, CROSS-CENTER PRODUCT 5100-72

$144.04

NEW
Thumbnail 1

DISC BRAKE REAR KTM GAS HQ, PSYCHIC MX-05516W HUSQVARNA

$104.03

PISTON KIT 02-04 YZ125 54.00 A, WOSSNER 8072DA YAMAHA MX 5NY-11631-01-D0 | SMXOFFROAD Ltd