2Bros Parts

PISTON KIT 1988 RM125 54.50, WOSSNER 8138D050 SUZUKI MX 12110-14513

£122.21

4.1 Trustpilot 99.9% positive on eBay

Free UK delivery 2–4 business days

Spread the cost with Klarna 18+, T&Cs apply

1

The Wossner 8138D050 piston kit features a 54.50 mm bore for +0.50 mm oversize applications. This forged piston is manufactured in Germany, offering superior strength and efficient thermal transfer. Its elliptical design promotes even bearing surface contact under high-temperature expansion, minimizing localised pressure and reducing the risk of piston collapse. This kit includes all necessary components for engine rebuilding, including a forged piston, lock CW15, pin WP032, ring set RSB5450, and rod P2015. Specifications include a 54.00 mm stroke, 123 cm³ displacement, 0.06 mm clearance, and 29.50 mm compression height. This kit is cross-referenced with OEM part number 12110-14513.

Specifications
SKU
56-W568+050.WO
Brand
Wossner
Availability
In Stock (4)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
54.5mm
Variant Id
256899
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Piston Kit - 54.50mm Bore

This Wossner piston kit is engineered for high-performance applications, featuring a 54.50 mm bore for +0.50 mm oversize. Precision manufactured in Germany, this forged piston is designed for superior strength and efficient thermal transfer. The innovative elliptical design ensures even bearing surface contact under extreme temperatures, minimizing localized pressure and preventing piston collapse. This comprehensive kit includes all essential components for a reliable engine rebuild.

Key Features

  • Forged piston construction for maximum strength and thermal efficiency.
  • Enhanced heat transfer capabilities from the combustion chamber to the cylinder walls.
  • Elliptical piston profile promotes uniform pressure distribution under operational heat.
  • Designed to reduce the risk of piston collapse caused by thermal stress.
  • German engineering ensures precision, quality, and performance.

Specifications

  • Bore Size: 54.50 mm
  • Actual Bore Diameter: 54.44 mm
  • Stroke: 54.00 mm
  • Display Displacement: 123 cm³
  • Clearance: 0.06 mm
  • Compression Ratio: 2-stroke (Wossner and OEM)
  • Compression Height: 29.50 mm

Cross-Reference Information

OEM Part Number: 12110-14513

Wossner Part Number: 8138D050

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

Call or email us with your make, model and year 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

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.

More answers in our FAQ.

Trade pricing available

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

Apply for Trade
1