Mercruiser Outdrive Parts Drawings *How to Videos

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Water Pump - Mercruiser Outdrive 1970 - 1983

Complete Mercruiser Sterndrive Lower Unit Water Pump kit with Housing

  • Please see our video and article on how to replace the water pump and impeller on the Mercruiser and Alpha 1 models.
  • Number one things not to is break the upper drive shaft seal so place grease on end of drive shaft and take care that shaft lines up with seal area.
  • Kit includes housing with o rings and gaskets, water pump impeller and key
  • Works with 120/140 4 cylinder, 470, 165 inline 6 cylinder, 260 and all V8 motors
  • Compatible with Mercruiser 1 / R stern drive models from 1970 - 1983 with serial numbers 2763442 - 6854392

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12110 outdrive

12110 outdrive

P/N 12110 OEM N/A Water pump kit $41.00 Our kit includes the impeller key P/N 11070 OEM 28-56654. Most competitor kits do not include the key.

89840 Impeller
89840 Impeller

P/N 89840 OEM 47-89984T4 Water pump impeller $17.00

11070 Key
11070 Key

P/N 11070 OEM 28-56654 Key $4.00

12410 housing
12410 housing

P/N 12410 OEM 46-96148T1 Water pump housing $28.00

12310 base
12310 base

P/N 12310 OEM 46-57234T1 Water pump base $22.00

12820 Tube guide
12820 Tube guide

P/N 12820 OEM 23-29804T Guide tube $4.00

12810 cup
12810 cup

P/N 12810 OEM 48752 Water pump cup $5.00

12510 Wear plate
12510 Wear plate

P/N 12510 OEM 32435 Wear plate $4.00

31020 Base gasket
31020 Base gasket

P/N 31010 OEM 27-85608-1 Gasket $4.00