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Wrench Bearing Retainer Spanner Nut Tool for Mercruiser 1 R MR Alpha 1


  • Part #: GLM90100

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This Wrench removes the Top Spanner Nut on Mercruiser # 1, R, MR, Alpha One, and Generation 2 Outdrives. This is needed to change the seals and to remove the gears in the upper unit. This tool also has a socket on the small end to remove the pinion nut on the lower unit.
Replaces Mercruiser: 91-17256

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