PISTON KIT 12-18 CRF150R 66.00, 8861DA WOSSNER, 13101-KSE-A70
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Wossner forged piston kit 8861DA features a 66mm bore (measured at 65.95mm) with a hard Teflon skirt coating and advanced thermal engineering. This piston offers a reliable fit, excellent durability, and consistent performance. It is manufactured in Germany and optimized for OEM compatibility. Features include forged construction for superior strength and longevity, an elliptical profile for uniform bearing surface under heat expansion, enhanced heat transfer from the combustion chamber to cylinder walls, and a Teflon skirt coating for optimal fit and conformity to the cylinder bore. It reduces localized pressure to prevent piston collapse. Specifications include a bore of 66mm (measured 65.95mm), display volume of 149 cm³, stroke of 43.80mm, clearance of 0.05mm, compression height of 20.60mm, Wossner compression ratio of OEM, OEM compression ratio of 11.70:1, dome volume of -1.40 cm³, part number 56-W914.A.WO (Wossner 8861DA), ring set 660XKS, lock P/N CW14, and pin P/N WP058. Cross-reference OEM part number is 13101-KSE-A70.
- SKU
- 56-W914.A.WO
- Brand
- Wossner
- Availability
- Out of Stock
Fitments (22)
| Make | Model | Year |
|---|---|---|
| HONDA | CRF 150 | 2012 |
| HONDA | CRF 150 | 2013 |
| HONDA | CRF 150 | 2014 |
| HONDA | CRF 150 | 2015 |
| HONDA | CRF 150 | 2016 |
| HONDA | CRF 150 | 2017 |
| HONDA | CRF 150 | 2018 |
| HONDA | CRF 150 | 2019 |
| HONDA | CRF 150R | 2012 |
| HONDA | CRF 150R | 2013 |
| HONDA | CRF 150R | 2014 |
| HONDA | CRF 150R | 2015 |
| HONDA | CRF 150R | 2016 |
| HONDA | CRF 150R | 2017 |
| HONDA | CRF 150R | 2018 |
| HONDA | CRF 150R | 2019 |
| HONDA | CRF 150R | 2020 |
| HONDA | CRF 150R | 2021 |
| HONDA | CRF 150R | 2022 |
| HONDA | CRF 150R | 2023 |
| HONDA | CRF 150R | 2024 |
| HONDA | CRF 150R | 2025 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 66.00mm
- Variant Id
- 258215
FULL DESCRIPTION
Wossner 8861DA Forged Piston Kit 66mm Standard Bore
This Wossner forged piston kit, part number 8861DA, is engineered for optimal performance and durability. Designed as a standard size with a 66mm bore, it features an advanced hard Teflon skirt coating and superior thermal engineering for consistent operation and extended lifespan. Manufactured in Germany, this piston is built to OEM specifications for seamless integration.
Key Features:
- Forged construction for exceptional strength and longevity.
- Elliptical piston profile ensures a uniform bearing surface even under extreme heat expansion.
- Optimized thermal design enhances heat transfer from the combustion chamber to the cylinder walls.
- Teflon skirt coating provides a precise fit and conforms smoothly to the cylinder bore.
- Reduces localized pressure points, preventing piston collapse.
- Premium quality manufacturing originating from Germany.
Specifications:
- Bore Size: 66mm (Actual measurement: 65.95mm)
- Displacement Volume: 149 cm³
- Stroke: 43.80mm
- Piston Clearance: 0.05mm
- Compression Height: 20.60mm
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 11.70:1
- Dome Volume: -1.40 cm³
- Wossner Part Number: 8861DA
- Included Ring Set: 660XKS
- Lock Piston Pin Retainer: CW14
- Piston Pin: WP058
Cross-Reference OEM Part Numbers:
- 13101-KSE-A70
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