VintCo KR2031 is a newly manufactured connecting rod kit for vintage Yamaha RT1, RT2, RT3, MX360, DT360, IT400, YZ250, YZ360 and YZ400 models. It is intended as a replacement for worn connecting rod assemblies and provides an alternative to replacing the complete crankshaft. The kit is manufactured using modern materials and production techniques for original-equipment-equivalent fit and performance, and includes the connecting rod, crank pin, big end bearing, wrist pin bearing and thrust washers.

Features

• Replacement connecting rod kit for specified vintage Yamaha models
• Alternative to replacing the complete crankshaft
• Manufactured using modern materials and manufacturing techniques
• Intended to provide original-equipment-equivalent fit and performance
• Complete kit includes a connecting rod, crank pin, big end bearing, wrist pin bearing and two thrust washers
• Connecting rod dimensions and measurements are available online with pictures

Specifications

• VintCo Part Number: KR2031
• Product type: Connecting rod kit
• Connecting rod material: Heavy-duty forged steel
• Connecting rod quantity: 1
• Crank pin quantity: 1
• Crank pin size: 12 x 25 x 60 mm
• Big end bearing quantity: 1
• Big end bearing size: 25 x 32 x 20 mm
• Wrist pin bearing quantity: 1
• Wrist pin bearing size: 18 x 23 x 22 mm
• Thrust washer quantity: 2
• Thrust washer size: 25 x 40 x 1 mm

Cross-Reference OEM Part Numbers

• Yamaha OEM Part Number: 431-11651-00-00

Vehicle Fitments

• 1970 Yamaha RT1
• 1971 Yamaha RT1
• 1972 Yamaha RT2
• 1973 Yamaha RT3
• 1973 Yamaha MX360
• 1974 Yamaha YZ360
• 1974 Yamaha MX360
• 1974 Yamaha DT360
• 1975 Yamaha YZ360
• 1976 Yamaha YZ400
• 1976 Yamaha IT400
• 1977 Yamaha YZ400
• 1977 Yamaha IT400
• 1978 Yamaha YZ400
• 1978 Yamaha IT400
• 1983 Yamaha YZ250
• 1984 Yamaha YZ250
• 1985 Yamaha YZ250
• 1986 Yamaha YZ250
• 1987 Yamaha YZ250
• 1988 Yamaha YZ250
• 1989 Yamaha YZ250