2Bros Parts

PISTON KIT 06-09 YZF WRF450 95, WOSSNER 8631DB HC YZF450

$230.15

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Delivery to United States 5–8 business days

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Wossner Pro Series high-compression forged piston kit with an 8631DB HC designation. Engineered for superior strength and optimal heat transfer, this piston features an elliptical design for uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany. Bore Size: 95.01mm, Actual Bore Diameter: 94.97mm, Displacement: 449 cm³, Stroke: 63.40mm, Clearance: 0.04mm, Compression Ratio: 13.50:1 (OEM: 12.30:1), Dome Volume: -6.10 cm³, Compression Height: 23.50mm. Lock Part Number: CW18, Pin Part Number: WP053, Ring Set Part Number: 950ADS-2, Rod Part Number: P4008. Weight: 406 grams.

Specifications
SKU
56-W223.B.WO
Brand
Wossner
Availability
In Stock (2)

Fitments (43)

MakeModelYear
GAS-GASEC F 4502013
GAS-GASEC F 4502014
GAS-GASEC F 4502015
YAMAHAWR 450F2003
YAMAHAWR 450F2004
YAMAHAWR 450F2005
YAMAHAWR 450F2006
YAMAHAWR 450F2007
YAMAHAWR 450F2008
YAMAHAWR 450F2009
YAMAHAWR 450F2010
YAMAHAWR 450F2011
YAMAHAWR 450F2012
YAMAHAWR 450F2013
YAMAHAWR 450F2014
YAMAHAWR 450F2015
YAMAHAWRF 4502003
YAMAHAWRF 4502004
YAMAHAWRF 4502005
YAMAHAWRF 4502006
YAMAHAWRF 4502007
YAMAHAWRF 4502008
YAMAHAWRF 4502009
YAMAHAWRF 4502010
YAMAHAWRF 4502011
YAMAHAWRF 4502012
YAMAHAWRF 4502013
YAMAHAWRF 4502014
YAMAHAWRF 4502015
YAMAHAYZ 450F2003
YAMAHAYZ 450F2004
YAMAHAYZ 450F2005
YAMAHAYZ 450F2006
YAMAHAYZ 450F2007
YAMAHAYZ 450F2008
YAMAHAYZ 450F2009
YAMAHAYZF 4502003
YAMAHAYZF 4502004
YAMAHAYZF 4502005
YAMAHAYZF 4502006
YAMAHAYZF 4502007
YAMAHAYZF 4502008
YAMAHAYZF 4502009
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
95mm
Variant Id
255088
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Pro Series High-Compression Forged Piston Kit

Elevate your motorcycle's performance with the Wossner Pro Series high-compression forged piston kit. Engineered for superior strength and optimal heat transfer, this piston features an advanced elliptical design to ensure uniform bearing surface under heat expansion. This innovative design effectively reduces localized pressure and prevents piston collapse, leading to enhanced reliability and performance. Manufactured with precision in Germany, Wossner pistons are a testament to quality engineering.

Key Features:

  • High-compression Pro Series forged piston for increased power
  • Optimized heat transfer for efficient combustion chamber operation
  • Elliptical design for balanced thrust load distribution
  • Reduces localized pressure and prevents piston collapse
  • Precision manufactured in Germany

Specifications:

  • Bore Size: 95.01mm
  • Actual Bore Diameter: 94.97mm
  • Displacement: 449 cm³
  • Stroke: 63.40mm
  • Clearance: 0.04mm
  • Wossner Compression Ratio: 13.50:1
  • OEM Compression Ratio: 12.30:1
  • Dome Volume: -6.10 cm³
  • Compression Height: 23.50mm
  • Lock Part Number: CW18
  • Pin Part Number: WP053
  • Ring Set Part Number: 950ADS-2
  • Rod Part Number: P4008
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call us+44 330 133 3748
Email us[email protected]

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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