Mercury 57234T-1 MerCruiser MC1/R Water Pump Base Repair Kit

Quicksilver 46-57234T1 Water Pump Base Kit for MerCruiser MC-I & R Drives

The Quicksilver 46-57234T1 Water Pump Base Kit is a genuine replacement water pump base repair kit for MerCruiser MC-I and R drives. This kit is designed for applications without a flush screw in the housing where part number 57234T1 is specified.

This complete 3-piece water pump base replacement kit includes the molded base, gasket, and O-ring needed for compatible water pump service. Designed for durability and proper cooling flow, it helps support reliable engine cooling and water pump performance.

Product Features:

• Genuine Quicksilver water pump base repair kit
• Fits select MerCruiser MC-I and R drives
• Designed for drives without a flush screw in the housing
• Complete 3-piece water pump base replacement kit
• Includes molded base, gasket, and O-ring
• Designed for durability and proper cooling flow
• Easy installation with common tools where applicable

Product Details:

• Brand: Quicksilver
• Manufacturer Part Number: 46-57234T1
• OEM Part Number: 57234T1
• Listing Part Number: 46-57234T-1
• Part Type: Water Pump Base Kit
• System: Water pump / cooling system
• Application: MerCruiser MC-I and R drives without flush screw in housing

Kit Includes:

• Molded water pump base
• Gasket
• O-ring

Fits Select MerCruiser Applications:

• MC-I drives without flush screw in housing where specified
• R drives without flush screw in housing where specified

Service Note: See your owner’s manual for replacement schedule and your service manual for water pump base installation instructions, gasket placement, and cooling system inspection procedures.

Fitment Note: Water pump base kit fitment should be verified by drive model, serial number, water pump housing style, flush screw configuration, parts diagram, and existing part number before ordering. Please confirm this kit is correct for your MerCruiser MC-I or R drive before purchasing.

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