Top quality Triumph Mainshaft Gearbox Bearing 57-1469 from Nachii! This bearing fits in the inner gearbox cover and carries the mainshaft on the right hand side of Triumph 350 & 500 unit twins 1958-74. Supplied sealed, seals can be kept intact or pried away at your discretion. Precision made in Japan.
For the complimentary high gear bearing, click here.
We also stock Triumph 350 / 500 oil seal kits, click here.
And Triumph 350 / 500 gasket kits, click here.
Please note: Due the nature of the product, we unfortunately do not accept returns on bearings, service tools or electrical components. Please be confident about your purchase before ordering. If you have questions, please contact us.
The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.











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