PISTON KIT 10-22 RMZ250 77mm A, 8781DA WOSSNER SUZUKI 12111-49H00-0F0
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Piston kit with 77mm bore and 76.96mm actual bore size. Wossner 8781DA (STD) piston kit. Wossner forged pistons are superior in strength and design, engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls. Elliptically designed to provide a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse. Made in Germany. Part number 56-W951.A.WO. Lock P/N CW16, Pin P/N WP070, Ring Set P/N 770XAS-2. Display (cm3) 249, Hub stroke (mm) 53.60, Clearance (mm) 0.04, Wossner compression Ratio: 13.60:1, OEM Compression ratio: 13.20:1, Dome volume (cm3) +0.10, Compression height (mm) 29.00, Theoretical weight (G) 19.50. Cross reference numbers: 12111-49H00-0F0, 40007M07700, 12110-49820, 12111-49H10-0F0, 12140-10810, 12151-49H00, 09381-16001.
- SKU
- 56-W951.A.WO
- Brand
- Wossner
- Availability
- Out of Stock
Fitments (16)
| Make | Model | Year |
|---|---|---|
| SUZUKI | RM-Z 250 | 2010 |
| SUZUKI | RM-Z 250 | 2011 |
| SUZUKI | RM-Z 250 | 2012 |
| SUZUKI | RM-Z 250 | 2013 |
| SUZUKI | RM-Z 250 | 2014 |
| SUZUKI | RM-Z 250 | 2015 |
| SUZUKI | RM-Z 250 | 2016 |
| SUZUKI | RM-Z 250 | 2017 |
| SUZUKI | RM-Z 250 | 2018 |
| SUZUKI | RM-Z 250 | 2019 |
| SUZUKI | RM-Z 250 | 2020 |
| SUZUKI | RM-Z 250 | 2021 |
| SUZUKI | RM-Z 250 | 2022 |
| SUZUKI | RM-Z 250 | 2023 |
| SUZUKI | RM-Z 250 | 2024 |
| SUZUKI | RM-Z 250 | 2025 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 77.00mm
- Variant Id
- 258344
FULL DESCRIPTION
Wossner Piston Kit - 77mm Bore
This Wossner piston kit is designed for optimal performance and durability. Featuring a 77mm bore, this kit ensures a precise fit and excellent combustion efficiency.
Key Features:
- Superior Forged Strength: Wossner forged pistons are engineered for exceptional strength and design, outperforming cast pistons.
- Advanced Heat Transfer: Built to facilitate the best possible transfer of combustion chamber heat to cylinder walls, promoting engine longevity.
- Elliptical Design: The elliptical shape ensures a uniform bearing surface even under heat expansion. This eliminates localized pressure, distributes thrust loads evenly, and prevents piston collapse.
- German Engineering: Proudly made in Germany, guaranteeing high quality and precision manufacturing.
- Performance Enhancement: Offers an increased compression ratio (13.60:1) compared to the OEM (13.20:1) for improved power output.
Specifications:
- Bore Size: 77mm
- Piston Clearance: 0.04mm
- Compression Height: 29.00mm
- Dome Volume: +0.10 cm3
- Theoretical Weight: 19.50g
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.