2Bros Parts

PISTON KIT 87-93 KTM125, WOSSNER 8011DC FORGED MX

$127.03

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Delivery to United States 5–8 business days

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Wossner piston kit 8011DC features a 54.21mm (+0.02 oversize) bore, designed for 125cc two-stroke engines from 1987 to 1993. This forged piston provides enhanced heat management and mechanical strength. The elliptical piston shape supports even expansion during operation, helping to avoid localised pressure points and structural failures. Precision-made in Germany, it is suitable for both GS and MX models. Features include forged construction, heat-optimised design, elliptical geometry, and precision engineering. Specifications include 125 cm³ displacement, 54.21mm bore size (+0.02 oversize), 54.10mm stroke, 0.06mm piston-to-wall clearance, 28.00mm compression height, and a 2-stroke compression ratio. Cross-reference OEM part numbers: Wossner Piston 8011DC, Lock CW15, Pin WP032, Ring Set RSB5425 x 2. Internal Reference Part No. 56-W627.00C.WO.

Specifications
SKU
56-W627.00C.WO
Brand
Wossner
Availability
In Stock (2)

Fitments (21)

MakeModelYear
KTM125 GS1987
KTM125 GS1988
KTM125 GS1989
KTM125 GS1990
KTM125 GS1991
KTM125 GS1992
KTM125 GS1993
KTM125 MX1987
KTM125 MX1988
KTM125 MX1989
KTM125 MX1990
KTM125 MX1991
KTM125 MX1992
KTM125 MX1993
KTM125 SX1987
KTM125 SX1988
KTM125 SX1989
KTM125 SX1990
KTM125 SX1991
KTM125 SX1992
KTM125 SX1993
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
54.20mm
Variant Id
257150
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner 8011DC Forged Piston Kit for KTM 125cc

Upgrade your KTM 125cc two-stroke engine with the Wossner 8011DC forged piston kit. Designed for high-performance applications, this piston offers superior durability and enhanced thermal management for a more reliable and powerful ride. Precision manufactured in Germany, it's built to withstand demanding conditions.

Key Features:

  • Forged construction for exceptional durability and mechanical strength.
  • Heat-optimized design promotes efficient thermal transfer to cylinder walls.
  • Elliptical geometry ensures uniform surface bearing and prevents localized pressure points during engine operation.
  • Precision engineered and manufactured in Germany for high-quality standards.
  • Suitable for both GS and MX models.

Specifications:

  • Displacement: 125 cm³
  • Bore Size: 54.21mm (+0.02 oversize)
  • Stroke: 54.10mm
  • Piston-to-Wall Clearance: 0.06mm
  • Compression Height: 28.00mm
  • Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)
Before you buy

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

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More answers in our FAQ.

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