PISTON KIT 66.50 +0.50 1979-1981 YAMAHA DT175 OS
Piston Kit: Bore 66.50 +0.50 O/S
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 and aligns with the OEM references listed below. Key dimensions and pin size are provided to assist accurate identification before purchase.
Features
- 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
- Check images before ordering to confirm compatibility
- Cost-effective replacement component
- Straightforward installation; if unsure, use a professional
- Mainly for the K models
Specifications
- 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 × 57 mm
Cross-Reference OEM Part Numbers
- 2N5-11631-00
- 2N5-11631-00-96
- 2A7-11631-00-98
- 443-11631-03-98
Yamaha:
- 175DT (1979–1981)
Product Information
Product Information
Shipping & Returns
Shipping & Returns

PISTON KIT 66.50 +0.50 1979-1981 YAMAHA DT175 OS
PISTON KIT 66.50 +0.50 1979-1981 YAMAHA DT175 OS
Piston Kit: Bore 66.50 +0.50 O/S
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 and aligns with the OEM references listed below. Key dimensions and pin size are provided to assist accurate identification before purchase.
Features
- 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
- Check images before ordering to confirm compatibility
- Cost-effective replacement component
- Straightforward installation; if unsure, use a professional
- Mainly for the K models
Specifications
- 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 × 57 mm
Cross-Reference OEM Part Numbers
- 2N5-11631-00
- 2N5-11631-00-96
- 2A7-11631-00-98
- 443-11631-03-98
Yamaha:
- 175DT (1979–1981)
Original: $100.03
-65%$100.03
$35.01Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Piston Kit: Bore 66.50 +0.50 O/S
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 and aligns with the OEM references listed below. Key dimensions and pin size are provided to assist accurate identification before purchase.
Features
- 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
- Check images before ordering to confirm compatibility
- Cost-effective replacement component
- Straightforward installation; if unsure, use a professional
- Mainly for the K models
Specifications
- 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 × 57 mm
Cross-Reference OEM Part Numbers
- 2N5-11631-00
- 2N5-11631-00-96
- 2A7-11631-00-98
- 443-11631-03-98
Yamaha:
- 175DT (1979–1981)





















