Jims Main Drive Gear Bearing 8905 for Big Twin 1977-1981
$115.57
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Jims Main Drive Gear Bearing 8905 for Big Twin 1977-1981
$115.57
Ensure reliable transmission performance with the Jims Main Drive Gear Bearing, manufactured in the USA by Torrington. Engineered to meet strict factory tolerances, this premium replacement bearing delivers smooth operation and long-lasting durability for classic 4-speed motorcycle transmissions.
Designed as a direct replacement for OEM part number 8905, it provides an exact fit for 1977 to 1981 Big Twin models. For optimal installation and proper alignment, use with the Jims Transmission Main Drive Gear Bearing Tool (JM-33428-78).
Key Features
| Brand | Jims |
| Manufacturer | Torrington |
| Product Type | Transmission Main Drive Gear Bearing |
| Manufacturer Part Number | 8905 |
| OEM Replacement Number | 8905 |
| Part Number | JM-8905 |
| Recommended Installation Tool | JIMS Transmission Main Drive Gear Bearing Tool # JM-33428-78 |
| Fitment | Big Twin 1977-1981 |
| Country of Origin | United States |
| Weight | 0.2 kg |
Highlights
- American-made precision bearing by Torrington
- Direct replacement for OEM part number 8905
- Engineered specifically for 1977-1981 Big Twin transmissions
- Delivers smooth, dependable gear rotation and longevity
Compatibility
Fits Harley-Davidson Big Twin 4-speed transmission models from 1977 to 1981. Replaces OEM # 8905.
How to use
For proper alignment and trouble-free installation, install this bearing using JIMS Transmission Main Drive Gear Bearing Tool (part number JM-33428-78).
Frequently asked questions
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