2Bros Parts

PISTON KIT 09-15 KTM65 SX 45.0, FORGED WOSSNER 8241DD

$92.19

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Delivery to United States 5–8 business days

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Wossner forged piston kit with a 45.03mm bore (44.99mm) for KTM SX65. 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 forged piston for increased strength and durability, optimized heat transfer for improved performance, elliptical design ensures uniform bearing surface under heat expansion, even thrust load distribution to prevent piston collapse, and manufactured in Germany. Specifications include bore size 45.03mm (44.99mm), part number 8241DD, lock part number CW12, pin part number WP091, ring set part number RSB4500, displacement 63 cm³, stroke 40.80mm, clearance 0.04mm, compression ratio 2-stroke, and compression height 21.60mm.

Specifications
SKU
56-W313.D.WO
Brand
Wossner
Availability
In Stock (2)

Fitments (44)

MakeModelYear
GASGASMC 652021
GASGASMC 652022
GASGASMC 652023
GASGASMC 652024
GASGASMC 652025
HUSQVARNATC 652017
HUSQVARNATC 652018
HUSQVARNATC 652019
HUSQVARNATC 652020
HUSQVARNATC 652021
HUSQVARNATC 652022
HUSQVARNATC 652023
HUSQVARNATC 652024
HUSQVARNATC 652025
KTM65 SX2009
KTM65 SX2010
KTM65 SX2011
KTM65 SX2012
KTM65 SX2013
KTM65 SX2014
KTM65 SX2015
KTM65 SX2016
KTM65 SX2017
KTM65 SX2018
KTM65 SX2019
KTM65 SX2020
KTM65 SX2021
KTM65 SX2022
KTM65 SX2023
KTM65 SX2024
KTM65 SX2025
KTM65 XC2009
KTM65 XC2010
KTM65 XC2011
KTM65 XC2012
KTM65 XC2013
KTM65 XC2014
KTM65 XC2015
KTM65 XC2016
KTM65 XC2017
KTM65 XC2018
KTM65 XC2019
KTM65 XC2020
KTM65 XC2021
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
45mm
Variant Id
255399
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner 8241DD Forged Piston Kit 45.03mm for KTM 65 SX

Upgrade your KTM 65 SX with the Wossner 8241DD forged piston kit, engineered for superior performance and durability. This high-quality piston features a 45.03mm bore and is meticulously crafted in Germany to deliver exceptional strength and heat transfer efficiency. The advanced elliptical design ensures even distribution of thrust loads, preventing localized pressure and mitigating the risk of piston collapse under extreme operating conditions.

Key Features:

  • Forged piston construction for enhanced strength and longevity.
  • Optimized heat transfer capabilities for improved engine performance.
  • Elliptical piston design promotes uniform bearing surface during thermal expansion.
  • Even thrust load distribution reduces stress and prevents piston collapse.
  • Manufactured to exacting standards in Germany.

Specifications:

  • Bore Size: 45.03mm (measured at 44.99mm)
  • Piston Part Number: 8241DD
  • Lock Ring Part Number: CW12
  • Wrist Pin Part Number: WP091
  • Ring Set Part Number: RSB4500
  • Engine Displacement: 63 cm³
  • Stroke: 40.80mm
  • Piston Clearance: 0.04mm
  • Compression Type: 2-stroke
  • Compression Height: 21.60mm
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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