Ohv Connecting Rod Bearing Retainers And Bearing Rollers

1951 O.H.V. models have different lower connecting rod bearing rollers and retainers than those used In earlier O.H.V. models. Retainer wall is thicker on closed end of retainer. This change vas made to gain greater rigidity. Since the wall is thicker and the overall width of the retainer remains the same, the bearing rollers for 1951 must be shorter.

Only the 1951 retainer-roller assembly is now furnished under part number 309-40. complete new assembly can be used in all Big Twins from 1940 to date.

To distinguish 1940 to 1950 Individual rollers and retainers from later Individual rollers and retainers refer to information below.

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