Johnson Pump F7 MC97 Impeller Kit 2.56 Inch, Replaces Jabsco 17937-0001, Fits Mercury Marine 4/6 Cyl, Volvo Penta, Yanmar, Kohler

The Johnson Pump F7 MC97 Impeller Kit (09-1028BT-1) is a raw water pump impeller kit built for marine cooling system applications on Mercury Marine 4-cylinder and 6-cylinder engines, as well as Volvo Penta, Yanmar, and Kohler engines. The impeller is molded from MC97 material, a compound engineered specifically for cooling pump service to deliver stable pressure over time and a longer service life than standard elastomer blends. The 8-blade design provides excellent self-priming capability and consistent cooling flow directly at engine start-up, while minimized swelling and reduced fatigue failure help the impeller hold its correct dimensions and pumping performance over its service life.

This kit measures 2.56 inches in outer diameter and 1.98 inches in width, and drives via an 8-spline inner bore for a secure fit on the pump shaft. Each kit includes the impeller along with a matching gasket, o-ring, and 7 grams of impeller lubricant, giving installers everything needed for a complete impeller service in one package. It directly replaces Jabsco impeller number 17937-0001, making it a straightforward cross-reference swap for raw water pumps that call for that part.

Specifications

• Brand: Johnson Pump
• Manufacturer Part Number: 09-1028BT-1
• Material: MC97
• Blade Count: 8 Blade
• Outer Diameter: 2.56 inches
• Inner Diameter: 8 splines
• Width: 1.98 inches
• Drive Type: Spline
• Included Components: Impeller, gasket, o-ring, and 7 grams of impeller lubricant
• Application: Mercury Marine 4 Cyl and 6 Cyl engines, Volvo Penta, Yanmar, Kohler
• OEM Cross Reference: Jabsco 17937-0001
• UPC: 7330717000059
• Weight: 0.36875 pounds

Fitment

• Mercury Marine 4 Cyl and 6 Cyl engines
• Volvo Penta
• Yanmar
• Kohler

Replaces (OEM)

• Jabsco 17937-0001

Frequently Asked Questions

What does the Johnson Pump 09-1028BT-1 impeller kit replace? The 09-1028BT-1 kit directly replaces Jabsco impeller number 17937-0001, so it is a suitable cross-reference swap for pumps calling for that part.

What engines does this impeller kit fit? This F7 MC97 impeller kit is designed for Mercury Marine 4-cylinder and 6-cylinder engines, as well as Volvo Penta, Yanmar, and Kohler engines.

What material is the 09-1028BT-1 impeller made from? The impeller in this kit is molded from MC97, a compound specifically engineered for raw water cooling pump service.

How many blades does the impeller have? The Johnson Pump F7 MC97 impeller has 8 blades.

What are the dimensions of this impeller? The 09-1028BT-1 impeller has a 2.56 inch outer diameter and a 1.98 inch width, with an 8-spline inner bore.

What is included in the kit? The kit includes the impeller itself along with a matching gasket, o-ring, and 7 grams of impeller lubricant for installation.

Is this a genuine Johnson Pump part? Yes, the 09-1028BT-1 is a genuine Johnson Pump F7 MC97 impeller kit, not an aftermarket copy.

How does this impeller improve on standard replacement impellers? The MC97 material used in the 09-1028BT-1 impeller is designed to minimize swelling and fatigue-related failures compared to standard elastomer impellers, providing more stable pressure delivery and a longer service life.

What drive type does this impeller use? The 09-1028BT-1 impeller uses a spline drive with an 8-spline inner bore to engage the pump shaft.

Does this impeller kit self-prime well? Yes, the Johnson Pump F7 MC97 impeller is designed for excellent self-priming capability and correct cooling flow directly at engine start-up.

Is lubricant needed for installation? No separate purchase is needed; the 09-1028BT-1 kit includes 7 grams of impeller lubricant along with the gasket and o-ring required for installation.