PISTON KIT 40mm 1981-2021 YAMAHA PW50 18U-11631-00-A0
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UK delivery £4.99, free over £60 2–4 business days
This piston kit is a standard replacement designed for Yamaha 50cc models from 1979 to 2021. It provides precise fitment and durability for small two-stroke engines, matching or exceeding OEM specifications. Constructed from high-tech materials for long-lasting performance and reliability. Elliptically designed for consistent bearing surface under thermal expansion. Direct OEM replacement for easy installation. Includes all necessary components for complete piston replacement. Manufactured to meet or exceed OEM quality standards. Specifications: Piston Diameter: 40mm, Piston Height: 50mm, Piston Pin Length: 33mm, Piston Pin Outer Diameter: 10mm. Package includes: 1 x Piston, 2 x Piston Rings, 1 x Piston Pin, 1 x Small End Bearing, 2 x Circlips. Cross-Reference OEM Part Numbers: PROX 01.2005.000, Piston (Std): 18U-11631-00-A0, 4J2-11631-00-A0, Piston Pin: 3L5-11633-00-00, Piston Ring Set (Std): 260-11610-04-00, 260-11601-03-00, Circlip: 93450-11021-00. Manufacturer: Dirt Racing.
- SKU
- 56-W938+000.DR
- Brand
- Dirt Racing
- Availability
- Out of Stock
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 40.00mm
- Variant Id
- 298625
FULL DESCRIPTION
Dirt Racing Piston Kit - 40mm Standard Replacement
This Dirt Racing Piston Kit is a high-quality, standard replacement designed for optimal performance and durability in Yamaha 50cc two-stroke engines. Engineered to match or exceed original equipment manufacturer (OEM) specifications, this kit ensures a precise fit and reliable operation for your motorcycle.
Key Features:
- Durable Construction: Crafted from advanced materials for exceptional longevity and consistent performance.
- Elliptical Design: Features an elliptical piston shape to maintain a stable bearing surface, even under thermal expansion.
- Direct OEM Replacement: Designed for straightforward installation, serving as a direct substitute for your original piston.
- Complete Kit: Includes all necessary components for a full piston replacement, simplifying the repair process.
- Quality Assurance: Manufactured to stringent quality standards, guaranteeing reliability and performance.
Specifications:
- Piston Diameter: 40mm
- Piston Height: 50mm
- Piston Pin Length: 33mm
- Piston Pin Outer Diameter: 10mm
Package Contents:
- 1 x Piston
- 2 x Piston Rings
- 1 x Piston Pin
- 1 x Small End Bearing
- 2 x Circlips
Cross-Reference OEM Part Numbers:
- PROX: 01.2005.000
- Piston (Std): 18U-11631-00-A0, 4J2-11631-00-A0
- Piston Pin: 3L5-11633-00-00
- Piston Ring Set (Std): 260-11610-04-00, 260-11601-03-00
- Circlip: 93450-11021-00
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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
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