PISTON KIT 07-09 RMZ250 HC 77, FORGED WOSSNER 8672DA 12111-10H20-0F0
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
Wossner forged high-compression piston kit with a 77mm bore (76.96mm). Designed for superior strength and heat transfer efficiency, this piston ensures optimal combustion performance. The elliptical design distributes thrust loads evenly, reducing localized pressure and preventing piston collapse. Manufactured in Germany. Features include a high-compression forged piston for increased performance, optimized heat transfer for improved efficiency, and an elliptical design that ensures a uniform bearing surface under heat expansion and even thrust load distribution to prevent piston collapse. Specifications include: Bore Size: 77mm (76.96mm), Compression Ratio: 13.9:1, Part Number: 8672DA, Lock Part Number: CW16, Pin Part Number: WP070, Ring Set Part Number: 770XAS-2, Rod Part Number: P4004, Displacement: 249 cm³, Stroke: 53.60mm, Clearance: 0.04mm, OEM Compression Ratio: 13.4:1, Dome Volume: -2.50 cm³, Compression Height: 19.60mm. Cross-reference OEM Part Numbers: 12111-10H20-0F0, 4928M07700.
- SKU
- 56-W305.A.WO
- Brand
- Wossner
- Availability
- In Stock (5)
Fitments (3)
| Make | Model | Year |
|---|---|---|
| SUZUKI | RM-Z 250 | 2007 |
| SUZUKI | RM-Z 250 | 2008 |
| SUZUKI | RM-Z 250 | 2009 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 77mm
- Variant Id
- 255350
FULL DESCRIPTION
Wossner 77mm Forged High-Compression Piston Kit
Enhance your motorcycle's performance with this Wossner forged high-compression piston kit. Engineered for superior strength and optimal combustion, this kit features a 77mm bore for increased power output. The advanced elliptical design ensures even distribution of thrust loads, preventing premature wear and piston collapse. Manufactured in Germany for exceptional quality and durability.
Key Features:
- High-Compression Forged Piston: Delivers increased performance and power.
- Optimized Heat Transfer: Improves combustion efficiency and engine reliability.
- Elliptical Design: Guarantees a uniform bearing surface under heat expansion, reducing stress.
- Even Thrust Load Distribution: Minimizes localized pressure, preventing piston collapse.
- Precision Manufacturing: Made in Germany to the highest standards.
Specifications:
- Bore Size: 77mm (76.96mm)
- Compression Ratio: 13.9:1
- Part Number: 8672DA
- Lock Part Number: CW16
- Pin Part Number: WP070
- Ring Set Part Number: 770XAS-2
- Rod Part Number: P4004
- Displacement: 249 cm³
- Stroke: 53.60mm
- Clearance: 0.04mm
- OEM Compression Ratio: 13.4:1
- Dome Volume: -2.50 cm³
- Compression Height: 19.60mm
Cross-Reference OEM Part Numbers:
- 12111-10H20-0F0
- 4928M07700
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
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.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.