Sierra 18-3320 MerCruiser Alpha One 6854393-0D469858 Water Pump Kit

Sierra 18-3320 Water Pump Kit

Sierra replacement water pump kit for Mercruiser engines. Sierra high quality aftermarket parts are manufactured to meet or exceed OEM requirements.

For MR/Alpha l Units S/N 6854393-0D469858

Includes:

Water Pump Gasket 18-2801

Water Pump Base Gasket 18-2826

Water Pump Gasket 18-2914

Water Pump Gasket 18-2919

Seal Ring Gasket 18-2944

Rain Screw Gasket 18-2945

Impeller 18-3017

Water Tube Guide 18-3109

Water Pump Housing Bushing 18-3110

Water Pump Housing 18-3116

Impeller Plate 18-3117

Water Pump Base 18-3420

O-Ring 18-7162

O-Ring 18-7173

O-Ring 18-7176

O-Ring 18-7426

Replaces:

GLM

12120

Mallory

9-48307

Frequently Asked Questions

• What is the Sierra 18-3320 Water Pump Kit used for? The Sierra 18-3320 Water Pump Kit is a replacement water pump kit for specified MerCruiser engines. It is designed for MR/Alpha I units with serial numbers 6854393-0D469858 and includes the water pump components needed for the listed application.
• What MerCruiser application does the Sierra 18-3320 water pump kit fit? The Sierra 18-3320 is specified for MR/Alpha I units with serial numbers 6854393-0D469858. Verify your MerCruiser unit's serial number before ordering to confirm that this water pump kit matches the specified application.
• What is included in the Sierra 18-3320 Water Pump Kit? The kit includes multiple water pump gaskets, a seal ring gasket, rain screw gasket, impeller, water tube guide, water pump housing bushing, water pump housing, impeller plate, water pump base, and four O-rings. The included components are listed as Sierra parts 18-2801, 18-2826, 18-2914, 18-2919, 18-2944, 18-2945, 18-3017, 18-3109, 18-3110, 18-3116, 18-3117, 18-3420, 18-7162, 18-7173, 18-7176, and 18-7426.
• Does the Sierra 18-3320 Water Pump Kit include an impeller? Yes. The Sierra 18-3320 Water Pump Kit includes the Sierra 18-3017 water pump impeller along with the other components listed for the kit.
• What parts does the Sierra 18-3320 Water Pump Kit replace? The Sierra 18-3320 Water Pump Kit replaces GLM 12120 and Mallory 9-48307. Verify the application and part number before ordering to ensure the replacement kit is appropriate for your MerCruiser unit.