Sierra 18-3046 Neoprene Impeller Kit, Replaces Sherwood 9959K, Chrysler Inboard

The Sierra 18-3046 is a neoprene impeller kit built for Chrysler Inboard raw water cooling systems. The kit contains one 18-3060 neoprene impeller, machined for a precise fit against the pump housing to maintain proper water flow and cooling to the engine. Neoprene construction resists wear from continuous rotation and provides reliable sealing against the pump cam and wear plate, which helps protect the engine from overheating caused by a worn or hardened impeller. The impeller measures 2 7/16 inches (62 mm) in diameter and 1 1/4 inches (31.8 mm) in width, sized to match the original Chrysler Inboard water pump impeller it replaces. This is a direct replacement for the Sherwood 9959K impeller, making it a straightforward swap for boat owners performing routine water pump maintenance or replacing a failed impeller. Sierra manufactures this kit to meet or exceed the performance of the original equipment part it replaces. Regular impeller replacement is a standard part of marine engine maintenance, and this kit provides the correct component sized and shaped for Chrysler Inboard applications.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3046
• Kit Contents: 18-3060 Impeller
• Impeller Diameter: 2 7/16 inches (62 mm)
• Impeller Width: 1 1/4 inches (31.8 mm)
• Material: Neoprene
• Finish: Machined
• Weight: 0.39 pounds
• UPC: 808282243777
• Application: Chrysler Inboard cooling system

Fitment

• Chrysler Inboard cooling / internal engine systems

Replaces (OEM)

• Sherwood 9959K

Frequently Asked Questions

What does the Sierra 18-3046 impeller kit include? The kit contains one 18-3060 neoprene impeller, sized to replace the water pump impeller in Chrysler Inboard cooling systems.

What size is the impeller in the 18-3046 kit? The impeller measures 2 7/16 inches (62 mm) in diameter and 1 1/4 inches (31.8 mm) in width.

Is the Sierra 18-3046 a direct replacement for the Sherwood 9959K? Yes, the Sierra 18-3046 impeller kit replaces the Sherwood 9959K impeller.

What material is the 18-3046 impeller made from? It is made from neoprene, a synthetic rubber material that resists wear and provides a reliable seal in the water pump housing.

What application is the Sierra 18-3046 impeller kit designed for? This impeller kit is designed for Chrysler Inboard cooling and internal engine systems.

How much does the Sierra 18-3046 impeller kit weigh? The Sierra 18-3046 impeller kit weighs 0.39 pounds.

Is the Sierra 18-3046 a genuine Sierra part or aftermarket? The 18-3046 is manufactured by Sierra, and it is built to meet or exceed the performance of the original equipment impeller it replaces.

How is the 18-3046 impeller finished? The 18-3060 impeller included in the 18-3046 kit has a machined finish for a precise fit against the water pump housing.

When should the impeller in a Chrysler Inboard water pump be replaced? Impellers wear over time from continuous rotation and should be replaced when cracked, hardened, or showing worn vanes; the Sierra 18-3046 kit provides the correctly sized replacement impeller for this task.

What is the UPC for the Sierra 18-3046 impeller kit? The UPC for the Sierra 18-3046 impeller kit is 808282243777.