2Bros Parts

PISTON KIT 13-16 SXF250 78mm A WOSSNER 8874DA HC KTM 77730007100

£188.83

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Wossner 78mm Bore Piston Kit (Part No. 56-W954.A.WO.HC) for KTM SXF250 2013-2016. High compression. This forged piston kit features enhanced strength, optimal heat transfer, and a uniform bearing surface due to its elliptical design. Achieves a high compression ratio of 14.50:1. Manufactured in Germany. Displacement: 249 cm3, Hub Stroke: 52.30 mm, Clearance: 0.04 mm, Dome Volume: -1.20 cm3, Compression Height: 19.50 mm. Kit includes piston, lock (P/N CW16), pin (P/N WP070), and ring set (P/N RIK78.00). Cross-reference numbers: 77730007100, 4981M07600.

Specifications
SKU
56-W954.A.WO.HC
Brand
Wossner
Availability
In Stock (30)

Fitments (39)

MakeModelYear
GAS-GASEC F 2502021
GAS-GASEC F 2502022
GAS-GASEC F 2502023
HUSABERGFE 2502014
HUSQVARNAFC 2502014
HUSQVARNAFC 2502015
HUSQVARNAFE 2502014
HUSQVARNAFE 2502015
HUSQVARNAFE 2502016
HUSQVARNAFE 2502017
HUSQVARNAFE 2502018
HUSQVARNAFE 2502019
HUSQVARNAFE 2502020
HUSQVARNAFE 2502021
HUSQVARNAFE 2502022
HUSQVARNAFE 2502023
KTM250 EXC-F2014
KTM250 EXC-F2015
KTM250 EXC-F2016
KTM250 EXC-F2017
KTM250 EXC-F2018
KTM250 EXC-F2019
KTM250 EXC-F2020
KTM250 EXC-F2021
KTM250 EXC-F2022
KTM250 EXC-F2023
KTM250 FREERIDE F2018
KTM250 FREERIDE F2019
KTM250 FREERIDE F2020
KTM250 FREERIDE R2018
KTM250 FREERIDE R2019
KTM250 FREERIDE R2020
KTM250 SX-F2013
KTM250 SX-F2014
KTM250 SX-F2015
KTM250 XC-F2013
KTM250 XC-F2014
KTM250 XCF-W2013
KTM250 XCF-W2014
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
78.00mm
Variant Id
258389
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner 78mm High Compression Piston Kit

Enhance the performance and durability of your engine with this precision-engineered Wossner 78mm Bore Piston Kit. Crafted in Germany, Wossner forged pistons are renowned for their exceptional quality and innovative design, delivering superior strength and optimal heat transfer for demanding applications.

The elliptical design of these pistons ensures a uniform bearing surface, even under extreme heat expansion, effectively distributing thrust loads and preventing piston collapse for consistent, reliable performance. This kit is specifically designed for high compression, allowing you to achieve a higher compression ratio of 14.50:1 for increased power output.

Key Features:

  • Enhanced Strength: Engineered for superior strength and durability using forged construction.
  • Optimal Heat Transfer: Meticulously designed to improve heat transfer from the combustion chamber.
  • Uniform Bearing Surface: Elliptical design prevents localized pressure and piston collapse under heat expansion.
  • High Compression: Achieves a 14.50:1 compression ratio for increased power.
  • German Craftsmanship: Manufactured to the highest standards of quality and precision in Germany.

Product Details:

  • Bore Size: 78mm
  • Displacement: 249 cm³
  • Hub Stroke: 52.30 mm
  • Clearance: 0.04 mm
  • Dome Volume: -1.20 cm³
  • Compression Height: 19.50 mm
  • Included Components: Piston, lock (CW16), pin (WP070), and ring set (RIK78.00).

This Wossner piston kit is a high-quality upgrade for performance-oriented engine builds, offering a perfect blend of power, reliability, and precision engineering. Cross-reference numbers include 77730007100 and 4981M07600.

Before you buy

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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.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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

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