Sierra 18-3080 Impeller Kit, Neoprene, Replaces Jabsco 673-0001, Fits Volvo Penta I/O Gas Engines

The Sierra 18-3080 Impeller Kit is a replacement water pump impeller built for Volvo Penta I/O gas engine models. The impeller is molded from neoprene, a synthetic rubber compound chosen for its resistance to heat, oil, and the wear that comes from constant contact with pump housings and cam surfaces. As the impeller spins inside the raw water pump, its flexible vanes flex and release to draw in and circulate cooling water through the engine, so a cracked, hardened, or worn-down impeller is a common cause of overheating and reduced water flow.

This kit measures 2 inches (508mm) in diameter and 7/8 inch (222mm) in width, sized to match the water pump housings used across the listed Volvo Penta I/O application range. It is intended as a direct replacement part for routine tune-up and maintenance service, and is cross-referenced to common Jabsco, Johnson Pump, and Volvo OEM impeller numbers so it can be ordered using whichever part number you have on hand.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3080
• Product Type: Water Pump Impeller Kit
• Material: Neoprene
• Diameter: 2 inches (508mm)
• Width: 7/8 inch (222mm)
• Weight: 0.16 pounds
• OEM Cross Reference: Jabsco 673-0001, Johnson Pump 09-1026B, Volvo 875808

Fitment

• Volvo Penta I/O gas engine models: MB 10 A, BB 30, BB 100, MB 18, AQ 60 F, MB 18 F, AQ 90, AQ 95, AQ 100, AQ 95A, AQ 110, AQ 120, BB 115 A, BB 115 B, BB 115 C

Replaces (OEM)

• Jabsco 673-0001
• Johnson Pump 09-1026B
• Volvo 875808

Frequently Asked Questions

What engines does the Sierra 18-3080 impeller kit fit? The Sierra 18-3080 fits Volvo Penta I/O gas engine models MB 10 A, BB 30, BB 100, MB 18, AQ 60 F, MB 18 F, AQ 90, AQ 95, AQ 100, AQ 95A, AQ 110, AQ 120, BB 115 A, BB 115 B, and BB 115 C.

What material is the 18-3080 impeller made from? It is molded from neoprene, a synthetic rubber that holds up to the heat and constant flexing inside a raw water pump.

What size is the Sierra 18-3080 impeller? The impeller measures 2 inches (508mm) in diameter and 7/8 inch (222mm) in width.

Does the 18-3080 replace Jabsco 673-0001? Yes, the Sierra 18-3080 is cross-referenced to Jabsco 673-0001 as a direct equivalent.

Is the Sierra 18-3080 the same as Johnson Pump 09-1026B? Yes, Johnson Pump 09-1026B is one of the OEM cross-reference numbers for the Sierra 18-3080 impeller kit.

Does this impeller cross to a Volvo Penta OEM part number? The Sierra 18-3080 cross-references to Volvo OEM part number 875808.

How much does the 18-3080 impeller kit weigh? The Sierra 18-3080 impeller kit weighs 0.16 pounds.

What are the symptoms of a worn impeller that this kit fixes? Reduced raw water flow and engine overheating are common signs of a worn or cracked impeller, and replacing it with the Sierra 18-3080 restores proper cooling water circulation on the applicable Volvo Penta I/O models.

Is this a genuine OEM part or an aftermarket replacement? The Sierra 18-3080 is an aftermarket impeller kit manufactured by Sierra as a cross-reference replacement for the listed OEM part numbers.

How often should the impeller be replaced? The Sierra 18-3080 is intended for routine tune-up service on Volvo Penta I/O gas engines, and is commonly replaced as part of regular water pump maintenance rather than only after failure.

What is included in the 18-3080 kit? The kit includes one neoprene impeller, part number 18-3080, sized 2 inches in diameter and 7/8 inch in width.