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Mercruiser Alpha One Shim Kit - Lower Unit

Outdrive shims for gear housing

  • P/N 23210
  • Shim kit replaces Mercury OEM 15-42637A1
  • 5 included in kick
  • Installed from gear housing to drive shaft bearing cup
  • Compatible with MR, Alpha 1 and Generation 2 models (1983 to present)

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23210 Shim Kit Alpha One Mercruiser 15-42637A1
23210 Shim Kit Alpha One Mercruiser 15-42637A1

P/N 23210 Shims $6.29

Customers who ordered P/N 23210 also purchased:

21580 Bearing drive shaft 31-36387A1
21580 Bearing drive shaft 31-36387A1

P/N 21580 Bearing for vertical drive shaft shims. Compatible with 1970 - 1997 models (up to s/n 0K999999. Replaces OEM 31-36387A1. $40.95

87510 Seal Kit 26-33144A2
87510 Seal Kit 26-33144A2

P/N 87510 Seal and gasket kit for the 1970 - 1990 (up to Alpha 1, Generation 1) lower units. Replaces OEM 26-33144A2. $38.95

P/N 87511 Alpha One Gen 2 lower unit seal kit, 1991 and up. Replaces 26-816575A3. $45.15

317201 Large Sealant-Johnson
317201 Large Sealant-Johnson

P/N 317201 Gasket sealing compound (includes brush inside lid). $24.15