Sierra Water Pump Kit - SIE-18-3324

Sierra 18-3324 Mercury Water Pump Kit

For Mercury and Mariner Outboard Motors.

Applications:

30 HP Jet SN. C159200-G589999

35 HP SN. 6445653-Up

40 HP SN. 4890103-6445653

40 HP (4cyl) SN. C159200-Up

45 HP SN. 5531630-Up

50 HP (4cyl) SN. 4962056-Up

50 HP (3cyl) SN. 6428681-D000749

60 HP SN. 6428681-D000749

65 HP (3cyl) SN. 4382057-4571651

70 HP SN. 4977157-B110053

Kit Includes:

18-3007 - Impeller

18-3118 - Upper Pump Housing

18-3424 - Water Pump Base

18-2945 - Drain Gasket

18-2823 - Lower Water Pump Base to Face Plate Gasket

18-2824 - Upper Face Plate to Body Gasket

18-2825 - Water Pump Base Gasket

18-2841 - Water Pump Base Gasket

18-2948 - Drain Plug

18-3107 - Plate

18-7155 - O-Ring

18-7174 - O-Ring

18-7115 - O-Ring

Interchangeable With:

Mercury Marine

46-77177A3

Mallory

9-48312

GLM

12100

Frequently Asked Questions

• What is the Sierra 18-3324 Mercury Water Pump Kit used for? The Sierra 18-3324 Mercury Water Pump Kit is designed for specified Mercury and Mariner outboard motors. It provides a collection of water pump components, including an impeller, upper pump housing, water pump base, gaskets, drain plug, plate, and O-rings for the listed applications.
• Which Mercury and Mariner outboards does the Sierra 18-3324 water pump kit fit? The Sierra 18-3324 is listed for specific 30 HP Jet, 35 HP, 40 HP, 45 HP, 50 HP, 60 HP, 65 HP, and 70 HP applications. Compatibility varies by horsepower, cylinder configuration, and serial number range, so verify your engine's exact serial number before ordering.
• What components are included in the Sierra 18-3324 Water Pump Kit? The kit includes an 18-3007 impeller, 18-3118 upper pump housing, 18-3424 water pump base, multiple water pump and drain gaskets, an 18-2948 drain plug, an 18-3107 plate, and 18-7155, 18-7174, and 18-7115 O-rings.
• What Mercury part number does the Sierra 18-3324 replace or interchange with? The Sierra 18-3324 is interchangeable with Mercury Marine part number 46-77177A3. It is also listed as interchangeable with Mallory 9-48312 and GLM 12100. Verify the part number and engine application before using an interchangeable part number to confirm it matches your outboard.
• Why should I check the serial number before purchasing the Sierra 18-3324? The listed applications use specific serial number ranges that vary by horsepower and cylinder configuration. For example, the kit covers 30 HP Jet engines with serial numbers C159200-G589999 and 70 HP engines with serial numbers 4977157-B110053. Confirm your exact serial number against the applicable range before ordering.