Sierra 18-3317 Water Pump Kit - Replaces Mercury Marine 46-96148A8

The Sierra 18-3317 Water Pump Kit is a marine engine water pump kit built for boat owners who need a reliable replacement pump assembly for their Mercury Marine application. It is designed as a direct equivalent for Mercury Marine part number 46-96148A8, giving owners a straightforward path to restoring proper raw water circulation and engine cooling without sourcing a marked-up OEM part. The kit is constructed from a combination of aluminum and stainless steel components, materials chosen for their resistance to corrosion in the marine environment and their ability to hold up under continuous exposure to raw water.

As a complete kit, it is intended to give the installer the parts needed to service the water pump in one package rather than requiring multiple individual purchases. The pump plays a critical role in an inboard or sterndrive engine's cooling system, pulling in raw water and circulating it through the engine to prevent overheating, so using a properly fitted replacement kit like the 18-3317 helps protect the engine from heat-related damage. The kit ships as a single unit and is backed by a 90 day manufacturer warranty, giving buyers confidence in the build quality of the aluminum and stainless steel construction.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3317
• Category: Mercruiser Water Pumps & Impellers
• Material: Aluminum, Stainless Steel
• Weight: 0.99 pounds
• Package Dimensions: 5.3 x 5.3 x 4.6 inches
• UPC: 030999315809
• Vehicle Service Type: Boat
• Warranty: 90 days

Fitment

Designed as a replacement for Mercury Marine engines originally equipped with water pump part number 46-96148A8.

Replaces (OEM)

• Mercury Marine 46-96148A8

Frequently Asked Questions

What is the Sierra 18-3317 Water Pump Kit used for? It is a marine engine water pump kit used to service the raw water cooling system on a Mercury Marine engine, replacing the pump components so the engine keeps circulating raw water for cooling.

Does the 18-3317 replace Mercury Marine 46-96148A8? Yes, the Sierra 18-3317 Water Pump Kit is designed as a replacement for Mercury Marine part number 46-96148A8.

How much does the 18-3317 water pump kit weigh? The Sierra 18-3317 Water Pump Kit weighs 0.99 pounds.

What material is the 18-3317 water pump kit made from? It is made from a combination of aluminum and stainless steel, materials chosen to resist corrosion in raw water marine cooling systems.

What are the package dimensions of the 18-3317 kit? The Sierra 18-3317 Water Pump Kit ships in a package measuring 5.3 inches long by 5.3 inches wide by 4.6 inches high.

Is the Sierra 18-3317 a genuine part or an aftermarket kit? The 18-3317 is sold under the Sierra brand as a water pump kit engineered to replace Mercury Marine 46-96148A8, rather than being sourced directly from Mercury Marine.

Is a warranty included with the 18-3317 water pump kit? Yes, the Sierra 18-3317 Water Pump Kit is backed by a 90 day manufacturer warranty.

How many pieces come in the 18-3317 kit? The Sierra 18-3317 Water Pump Kit is sold as a single unit, with a unit count of one.

What UPC is associated with the Sierra 18-3317 water pump kit? The Sierra 18-3317 Water Pump Kit carries UPC 030999315809.