VintCo KMB026 is a complete main bearing and seal kit for Maico 4-speed 250, 400 and 440 models from 1972 to 1975. Intended for vintage engine rebuilds, this newly manufactured kit uses modern materials and manufacturing techniques to provide OEM-equivalent or better fit and performance. It includes two main bearings and two crankshaft oil seals, with OEM part numbers supplied for fitment reference.

Features

• Complete main bearing and seal kit
• Includes two main bearings and two crankshaft oil seals
• Intended for vintage bike engine rebuilds
• Manufactured using modern materials and production techniques
• Designed for OEM-equivalent or better fit and performance
• OEM part numbers provided for exact fitment reference
• Fits Maico 4-speed 250, 400 and 440 models

Specifications

• VintCo Part Number: KMB026
• Bearing size: 25 x 62 x 17
• Bearing size: 25 x 62 x 25
• Seal size: 25 x 35 x 8
• Seal size: 32 x 52 x 8

Cross-Reference OEM Part Numbers

• Bearing 25 x 62 x 17: OE# 425
• Bearing 25 x 62 x 25: OE# 693
• Seal 25 x 35 x 8: OE# 548
• Seal 32 x 52 x 8: OE# 547

Vehicle Fitments

• 1972 Maico 250
• 1972 Maico 400
• 1973 Maico 250
• 1973 Maico 400
• 1974 Maico 250
• 1974 Maico 400
• 1974 Maico 440
• 1975 Maico 400
• 1975 Maico 440