2Bros Parts

PISTON KIT 13-18 SXF450 95mm WOSSNER 8873DA KTM, HIGH COMPRESSION 13.6:1 78930007300

$254.26Only 1 left

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Delivery to United States 5–8 business days

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Wossner forged high-compression piston kit with a 95mm bore size (94.95mm actual). This piston includes a two-ring configuration and an elliptical shape for even load distribution and enhanced heat dissipation. It features a high-compression dome with a compression ratio of 13.60:1 (OEM is 12.60:1). Specifications include a displacement of 449 cm³, 84.00 mm stroke, 0.05 mm clearance, +4.10 cm³ dome volume, and 22.80 mm compression height. Manufactured in Germany. Cross-reference OEM part numbers: 78930007300, 40117M09500, RC902M09500.

Specifications
SKU
56-W956.A.WO.HC
Brand
Wossner
Availability
In Stock (1)

Fitments (46)

MakeModelYear
GAS-GASEX F 4502021
GAS-GASEX F 4502022
GAS-GASEX F 4502023
GAS-GASMC F 4502021
GAS-GASMC F 4502022
GAS-GASMC F 4502023
HUSQVARNAFC 4502014
HUSQVARNAFC 4502015
HUSQVARNAFC 4502016
HUSQVARNAFC 4502017
HUSQVARNAFC 4502018
HUSQVARNAFC 4502019
HUSQVARNAFC 4502020
HUSQVARNAFC 4502021
HUSQVARNAFC 4502022
HUSQVARNAFS 4502015
HUSQVARNAFS 4502016
HUSQVARNAFS 4502017
HUSQVARNAFS 4502018
HUSQVARNAFS 4502019
HUSQVARNAFS 4502020
HUSQVARNAFS 4502021
HUSQVARNAFS 4502022
HUSQVARNAFS 4502023
HUSQVARNAFX 4502017
HUSQVARNAFX 4502018
HUSQVARNAFX 4502019
HUSQVARNAFX 4502020
HUSQVARNAFX 4502021
HUSQVARNAFX 4502022
KTM450 SM R2013
KTM450 SM R2014
KTM450 SM-R2021
KTM450 SM-R2022
KTM450 SMR2013
KTM450 SMR2014
KTM450 SX-F2013
KTM450 SX-F2014
KTM450 SX-F2015
KTM450 SX-F2016
KTM450 SX-F2017
KTM450 SX-F2018
KTM450 SX-F2019
KTM450 SX-F2020
KTM450 SX-F2021
KTM450 SX-F2022
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
95.00
Variant Id
258395
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner High Compression Piston Kit - 95mm Bore

This Wossner forged high-compression piston kit is designed to enhance the performance of competitive applications. It features a 95mm bore size (94.95mm actual) and a high-compression dome, significantly increasing the compression ratio for improved power output.

Key Features:

  • Forged high-compression piston with a two-ring design for durability.
  • Elliptical piston profile ensures even load distribution and manages thrust loads under heat expansion.
  • Optimized for superior combustion heat transfer and long-lasting performance.
  • Precision manufactured in Germany for exceptional quality.

Specifications:

  • Bore Size: 95mm (actual 94.95mm)
  • Displacement: 449 cm³
  • Stroke: 84.00 mm
  • Clearance: 0.05 mm
  • Wossner Compression Ratio: 13.60:1
  • OEM Compression Ratio: 12.60:1
  • Dome Volume: +4.10 cm³
  • Compression Height: 22.80 mm

Cross-Reference OEM Part Numbers:

  • 78930007300
  • 40117M09500
  • RC902M09500
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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