PISTON KIT 66.50 +0.50 1979-1981 YAMAHA DT175 OS
PISTON KIT 66.50 +0.50 OS. This replacement piston is designed for Yamaha 175 cc two-stroke models and is mainly intended for the K models. Manufactured to precise standards for reliable rebuilds, it serves as a direct OEM replacement. High-grade materials for dependable service and consistent performance. Manufactured to exacting tolerances to support confident engine rebuilds. Meets or exceeds OEM quality. Direct OEM replacement. Cost-effective replacement component. Piston length: 68.9 mm. Crown edge to bottom skirt edge: 65 mm. Centre of pin to crown edge: 35.5 mm. Gudgeon pin size: 16 x 57 mm. Cross-Reference OEM Part Numbers: 2N5-11631-00, 2N5-11631-00-96, 2A7-11631-00-98, 443-11631-03-98.
- SKU
- 56-W254.050.AAA
- Brand
- No Brand
- Availability
- In Stock (3)
FULL DESCRIPTION
Piston Kit - 66.50mm Bore +0.50 Oversize
This high-quality piston kit is designed as an overbore replacement for 175cc two-stroke Yamaha engines, primarily for K models. Manufactured using premium materials and to precise tolerances, it ensures reliable performance and dependable service for your engine rebuild. This kit offers a cost-effective solution and serves as a direct OEM replacement, meeting or exceeding original equipment quality.
Key Features:
- Constructed with high-grade materials for durability and consistent performance.
- Precision engineered to exact specifications for confident engine rebuilds.
- Meets or exceeds OEM quality standards.
- Direct replacement for original equipment.
- Provides a cost-effective solution for engine repairs.
- Designed for straightforward installation.
Specifications:
- Bore Size: 66.50mm (+0.50mm Oversize)
- Piston Length: 68.9 mm
- Crown Edge to Bottom Skirt Edge: 65 mm
- Center of Pin to Crown Edge: 35.5 mm
- Gudgeon Pin Size: 16 x 57 mm
OEM Cross-Reference Part Numbers:
- 2N5-11631-00
- 2N5-11631-00-96
- 2A7-11631-00-98
- 443-11631-03-98
Always verify compatibility with your specific motorcycle model and refer to the provided images before ordering.


