2Bros Parts

PISTON KIT 85-86 RM125 54.00, WOSSNER 8123DA SUZUKI MX 12101-14850

$134.33

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

1

Wossner forged piston kit with a 54.00mm bore, designed for Suzuki RM125 models. Features an elliptical design for even load distribution during thermal expansion, improving structural integrity and reducing the risk of piston collapse. Engineered for efficient heat transfer in two-stroke engines. Forged piston construction for increased durability. Elliptical design for consistent bearing surface under heat expansion. Enhanced heat transfer from combustion chamber to cylinder walls. Made in Germany. Includes piston, pin, locks, and ring set. Specifications: Bore Size: 54.00mm, Actual Bore: 53.94mm, Stroke: 54.00mm, Clearance: 0.06mm, Compression Ratio: 2-stroke (Wossner and OEM), Compression Height: 29.50mm, Displacement: 123 cm³. Cross-Reference OEM Part Numbers: Piston Kit Part No: 56-W519+000.WO, Wossner Piston PN: 8123DA, Lock P/N: CW14, Pin P/N: WP025, Ring Set P/N: RSB5400 (x2), OEM Reference Numbers: 12101-14850, 519M05400.

Specifications
SKU
56-W519+000.WO
Brand
Wossner
Availability
In Stock (2)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
54mm
Variant Id
256662
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit 54.00mm

Upgrade your motorcycle's performance with this high-quality Wossner forged piston kit. Engineered in Germany, this kit features a 54.00mm bore size and is designed for optimal power and durability in two-stroke engines. The advanced elliptical piston design ensures even load distribution and reduces the risk of piston collapse, even under extreme thermal expansion. This results in improved structural integrity and efficient heat transfer for peak engine operation.

Key Features:

  • Forged piston construction for superior strength and longevity.
  • Innovative elliptical design for consistent bearing surface under heat.
  • Optimized for efficient heat transfer from the combustion chamber.
  • Precision manufacturing in Germany guarantees exceptional quality.
  • Complete kit includes piston, pin, locks, and ring set for a straightforward installation.

Specifications:

  • Bore Size: 54.00mm
  • Actual Bore: 53.94mm
  • Stroke: 54.00mm
  • Clearance: 0.06mm
  • Compression Ratio: 2-stroke (Wossner and OEM)
  • Compression Height: 29.50mm
  • Displacement: 123 cm³
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call or email us with your make, model and year 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.

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1