Jims 5th Gear Bearing 8904 for Big Twin 1980-1990
This premium Jims 5th gear bearing provides precision performance and dependable durability for vintage Harley-Davidson transmissions. Engineered to match exact factory tolerances, it serves as a direct replacement for OEM part number 8904.
Designed specifically for Big Twin 5-speed models from 1980 to 1990, complete transmission installation requires two bearings. For proper seating and optimal service life, installation is recommended using JIMS tool JM-34734-80.
Key Features
| Brand | Jims |
| MPN | 8904 |
| OEM Replacement | 8904 |
| Fitment | Harley-Davidson Big Twin 1980-1990 |
| Quantity Required | 2 per transmission |
| Recommended Installation Tool | Jims Tool JM-34734-80 |
| Transmission Type | 5-Speed |
| Product Type | Transmission Gear Bearing |
| Shipping Weight | 0.1 kg |
Compatibility
Compatible with Harley-Davidson Big Twin 5-speed transmission models from 1980 through 1990.
How to use
Press bearing into fifth gear to the appropriate factory depth using JIMS tool JM-34734-80. Note that two bearings are required per transmission rebuild.
Frequently asked questions
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