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Alpha One Bearing - Lower Unit Part

Mercruiser Alpha One Reverse Gear Ball Bearing

  • GLM Marine P/N 21620
  • Replaces Mercury OEM 30-88957T
  • Reverse gear ball bearing from 1972 to 1990 Alpha and Mercruiser lower units
  • Made in England bearings

Tech support exploded view Alpha One drawings
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21620 Ball Bearing Alpha One 30-88957T
21620 Ball Bearing Alpha One 30-88957T

P/N 21620 Ball bearing 6209 made in England OEM 30-88957T $37.95

Customers who ordered P/N 21620 also purchased:

11410 Reverse Gear Mercruiser Part 31-30956
11410 Reverse Gear Mercruiser Part 31-30956
P/N 11410 Lower unit reverse gear roller bearing.Compatible with all Mercruiser models (except Bravo). Replaces OEM 31-30956 $10.15

87510 Seal Kit 26-33144A2
87510 Seal Kit 26-33144A2
P/N 87510 Replaces OEM 26-33144A2 $35.15

12120 outdrive pump kit
12120 outdrive pump kit
P/N 12120 Outdrive water pump for 1984-1990 models. Includes impeller and housing. Compatible with serial numbers 6854393-OD469858. $35.15

39622 Bell Housing Gasket 27-94996A2
39622 Bell Housing Gasket 27-94996A2
P/N 39622 Bell housing outdrive gasket kit. Replaces OEM 27-94996A2. $6.15

317201 Large Sealant-Johnson
317201 Large Sealant-Johnson
P/N 317201 Large gasket sealant. 16 ounce. $24.15

P/N 508235 Small size. 4 ounce. $19.15