Engineered Marine Products Water Pump Kit with Housing 46-00090, Replaces Mercury Quicksilver 18-3517 for MerCruiser MR/Alpha One

This water pump kit with housing from Engineered Marine Products is a complete replacement assembly built to restore reliable cooling system performance on applicable MerCruiser sterndrives. The kit includes an impeller service kit along with a molded plastic pump housing, giving installers the core components needed to rebuild the water pump in a single purchase rather than sourcing the housing and impeller separately. Engineered Marine Products manufactures the kit to OEM standards, positioning it as a direct aftermarket equivalent to the Mercury Quicksilver 18-3517 water pump housing used across a range of MerCruiser MR and Alpha One configurations.

The housing is made of plastic for corrosion resistance in the raw-water cooling circuit, and the kit ships as a single unit (Number of Items: 1) backed by a 1 year manufacturer warranty. It is intended for boat owners and marine technicians performing routine water pump maintenance or replacing a worn or cracked housing to prevent overheating.

Specifications

• Brand: Engineered Marine Products
• Manufacturer Part Number: 46-00090
• Product Type: Pump Kit with Housing
• Material: Plastic
• Included Components: Impeller Service Kit
• Number of Items: 1
• Weight: 0.71 pounds
• UPC: 840080467931
• Warranty: 1 year manufacturer warranty
• Replaces (OEM): 18-3517

Fitment

• MerCruiser MR, serial numbers 2495186-2763441
• MerCruiser MR, units without a flush screw in the gear housing, serial numbers 2763442-6854392
• MerCruiser MR/Alpha One, serial numbers 6854393-0D594568

Replaces (OEM)

• 18-3517

Frequently Asked Questions

What does the 46-00090 water pump kit include? The kit includes a plastic pump housing along with an impeller service kit, giving you the core parts needed to rebuild a MerCruiser water pump in one purchase.

Is 46-00090 a direct replacement for the Mercury Quicksilver 18-3517? Yes, this Engineered Marine Products kit replaces Mercury Quicksilver part number 18-3517.

What is the housing made of? The pump housing in kit 46-00090 is made of plastic.

How much does this water pump kit weigh? The Engineered Marine Products 46-00090 water pump kit weighs 0.71 pounds.

Which MerCruiser models does 46-00090 fit? It fits MerCruiser MR units in the serial number range 2495186-2763441, MR units without a flush screw in the gear housing in the range 2763442-6854392, and MR/Alpha One units in the range 6854393-0D594568.

Is this an OEM or aftermarket part? The 46-00090 kit is an aftermarket part manufactured by Engineered Marine Products, engineered to OEM standards as a replacement for Mercury Quicksilver 18-3517.

Does the kit come with a warranty? Yes, Engineered Marine Products backs the 46-00090 water pump kit with a 1 year manufacturer warranty.

How many pieces come in the box? The 46-00090 kit ships as a single item that contains the housing and the impeller service kit.

Do I need to replace the housing every time I service my water pump? This depends on the condition of your existing housing, but kit 46-00090 provides a new plastic housing along with the impeller service kit so both can be replaced together.

What is the OEM cross-reference number for this part? Part 46-00090 replaces Mercury Quicksilver number 18-3517.