Sierra 18-3317 MerCruiser 2763442 6854392 Water Pump Kit

MerCruiser Pre-Alpha Water Pump Housing Kit by Sierra

For #1/R Units without flush S/N 2763442 - 6854392 Pre-Alpha MerCruiser Drives. Models which have been retro fitted with an Alpha style (no preload pin on top of driveshaft) must use Kit # 18-3320.

Kit Includes:

18-3109 - Water Tube

18-3017 - Impeller

18-3116 - Housing

18-2919 - Water Pump Base to Gear Housing Gasket

18-3417 - Water Pump Base

18-3110 - Grommet

18-2945 - Gear Housing Drain Screw Gasket

18-2826 - Water Pump Base to Gear Housing Gasket

18-2914 - Lower Water Pump to Wear Plate Gasket

18-2915 - Upper Water Pump to Wear Plate Gasket

18-2944 - Seal Ring

18-3117 - Plate

18-7158 - O-Ring

18-7162 - O-Ring

18-7173 - O-Ring

18-7176 - O-Ring

18-2801 - Water Pump Gasket

18-7196 - O-Ring

18-7426 - O-Ring

18-2919 - Water Pump Gasket

Frequently Asked Questions

• What is the MerCruiser Pre-Alpha Water Pump Housing Kit by Sierra used for? The MerCruiser Pre-Alpha Water Pump Housing Kit by Sierra is a replacement water pump kit for #1/R Units without flush on Pre-Alpha MerCruiser Drives with serial numbers 2763442 through 6854392. The kit includes the water pump housing, impeller, base, water tube, grommet, plates, gaskets, seal ring, and multiple O-rings.
• Which MerCruiser drives does this Sierra water pump housing kit fit? This kit is specified for #1/R Units without flush on Pre-Alpha MerCruiser Drives with serial numbers 2763442 through 6854392. Verify your drive type and serial number before ordering to ensure the application matches the product description.
• Can this Sierra Pre-Alpha water pump kit be used on a drive retrofitted with an Alpha-style setup? No. The product description specifies that MerCruiser drives retrofitted with an Alpha-style setup, identified as having no preload pin on top of the driveshaft, must use Sierra Kit 18-3320 instead. Check the configuration of your drive before selecting this Pre-Alpha water pump housing kit.
• What components are included in the MerCruiser Pre-Alpha Water Pump Housing Kit by Sierra? The kit includes an 18-3109 water tube, 18-3017 impeller, 18-3116 housing, 18-3417 water pump base, 18-3110 grommet, 18-3117 plate, 18-2944 seal ring, water pump and gear housing gaskets, wear plate gaskets, and multiple O-rings. It provides the listed components for the specified Pre-Alpha water pump application.
• Does the Sierra water pump housing kit include the water pump impeller? Yes. The MerCruiser Pre-Alpha Water Pump Housing Kit by Sierra includes an 18-3017 water pump impeller. The kit also contains the 18-3116 housing, 18-3417 water pump base, 18-3109 water tube, 18-3110 grommet, plates, gaskets, seal ring, and O-rings listed in the product description.