Sierra 18-3246 Neoprene Water Pump Impeller, 6-Fin, Replaces Honda 19210-ZV4-013, Fits BF9.9/BF15 Outboards

The Sierra 18-3246 is a neoprene water pump impeller built with 6 fins for Honda outboard motors. It is the rotating component inside the outboard's water pump housing that draws raw water through the lower unit to cool the engine, and it is a standard wear item that should be replaced periodically to keep cooling flow reliable.

The impeller body is molded from neoprene, a synthetic rubber chosen for its resistance to heat, saltwater, and repeated flexing as the fins sweep against the pump housing. Its 6-fin design is engineered to match the flow requirements of the Honda outboard water pump it is built for. The Sierra 18-3246 is interchangeable with Honda part numbers 19210-ZV4-013 and 19210-ZV4-651, as well as Mallory part number 9-45101, so it can be used as a direct replacement wherever those numbers are called for.

This impeller is for Honda BF9.9 and BF15 outboard motors, including the AH, AK, AM, and AW series (#14ZV40M). It ships as a single impeller, one count per package, and is backed by a Sierra limited warranty.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3246
• Product Type: Impeller
• Material: Neoprene
• Number of Fins: 6
• Color: White
• Engine Type: 4 Stroke
• Fuel Type: Gasoline
• Maximum Horsepower: 15 Horsepower
• Mounting Type: Transom Mount
• Weight: 0.09 pounds
• UPC: 808282106188

Fitment

• Honda BF9.9 outboard motors
• Honda BF15 outboard motors
• Honda AH, AK, AM, and AW Series outboards (#14ZV40M)

Replaces (OEM)

• Honda 19210-ZV4-013
• Honda 19210-ZV4-651
• Mallory 9-45101

Frequently Asked Questions

What is the Sierra 18-3246 impeller used for? The Sierra 18-3246 is a water pump impeller that fits inside the water pump housing of a Honda outboard motor and pumps raw water through the engine to keep it cool.

Does the Sierra 18-3246 fit a Honda BF9.9 or BF15 outboard? Yes, the Sierra 18-3246 is built for Honda BF9.9 and BF15 outboard motors, including the AH, AK, AM, and AW Series (#14ZV40M).

What OEM part numbers does the Sierra 18-3246 replace? It is interchangeable with Honda 19210-ZV4-013, Honda 19210-ZV4-651, and Mallory 9-45101.

Is Honda 19210-ZV4-013 the same impeller as the Sierra 18-3246? Honda 19210-ZV4-013 is one of the OEM numbers the Sierra 18-3246 is designed to replace, so the two are interchangeable for the applicable Honda outboards.

What material is the impeller made from? The Sierra 18-3246 impeller is molded from neoprene, a synthetic rubber that holds up to heat and saltwater exposure in the water pump housing.

How many fins does the 18-3246 impeller have? It is a 6-fin design, matching the fin count required by the Honda outboard water pumps it fits.

How much does the Sierra 18-3246 impeller weigh? The Sierra 18-3246 impeller weighs 0.09 pounds.

What color is the Sierra 18-3246 impeller? It is white.

How many impellers come in one package? Each package of the Sierra 18-3246 contains one impeller.

Will this impeller work with a Mallory 9-45101? Yes, the Sierra 18-3246 is interchangeable with Mallory part number 9-45101.

Is the Sierra 18-3246 covered by a warranty? The Sierra 18-3246 impeller is backed by a Sierra limited warranty.

What horsepower range is the 18-3246 impeller rated for? The Sierra 18-3246 is rated for Honda outboards up to 15 horsepower, covering the BF9.9 and BF15 models.