VintCo KMB029 is a main bearing and seal kit for vintage Yamaha engine rebuilds, supplying the two main bearings and two oil seals required to service the crankshaft main bearing assembly. It is manufactured using modern materials and manufacturing methods to provide OEM-equivalent fit and performance for specified Yamaha IT, MX and YZ models from 1975 to 1990.

Features

• Complete main bearing and seal kit for engine rebuilds
• Includes two main bearings and two oil seals
• Intended for vintage Yamaha two-stroke applications
• Designed for OEM-equivalent fit and performance
• Fits specified Yamaha IT400, IT425, IT465, IT490, MX400, YZ400, YZ465 and YZ490 models

Specifications

• VintCo Part Number: KMB029
• Kit contents: 2 main bearings, 2 oil seals
• Item category: Main Bearing Kit

Cross-Reference OEM Part Numbers

• Main bearing OEM part number: 93306-30615-00
• Oil seal OEM part number: 93103-30150-00
• Oil seal OEM part number: 93103-40091-00

Vehicle Fitments

• 1975 Yamaha MX400
• 1976 Yamaha YZ400
• 1976 Yamaha IT400
• 1977 Yamaha YZ400
• 1977 Yamaha IT400
• 1978 Yamaha YZ400
• 1978 Yamaha IT400
• 1979 Yamaha YZ400
• 1979 Yamaha IT400
• 1980 Yamaha YZ465
• 1980 Yamaha IT425
• 1981 Yamaha YZ465
• 1981 Yamaha IT465
• 1982 Yamaha IT465
• 1982 Yamaha YZ490
• 1983 Yamaha IT490
• 1983 Yamaha YZ490
• 1984 Yamaha IT490
• 1984 Yamaha YZ490
• 1985 Yamaha YZ490
• 1986 Yamaha YZ490
• 1987 Yamaha YZ490
• 1988 Yamaha YZ490
• 1989 Yamaha YZ490
• 1990 Yamaha YZ490