Johnson Pump 09-1027B-1 F5 MC97 Impeller Kit 2.25 Inch, Replaces Jabsco 1210-0001, for Volvo Penta 3.0/4.3/5.0/5.7/AQ, Indmar 200, Yanmar

The Johnson Pump 09-1027B-1 is an F5 MC97 impeller kit built for marine raw water pumps that require a 2.25 inch outer diameter impeller. The impeller is molded from Johnson Pump's MC97 compound, a rubber formulation engineered to hold tight dimensional tolerances so the pump delivers stable pressure and consistent cooling flow over its service life. The MC97 material is designed to minimize swelling and reduce the fatigue-related cracking that causes worn impellers to lose vanes and starve an engine of cooling water, which can lead to overheating and breakdowns if left unchecked. The impeller also provides excellent self-priming capability, helping the pump draw water quickly and deliver sufficient cooling flow as soon as the engine starts, rather than after a delay.

This kit is a complete service package rather than an impeller alone: it includes the impeller, a gasket, an o-ring, and 7 grams of impeller lubricant, so the installer has what is needed for a full pump service in one box. The impeller measures 2.25 inches in outer diameter, has a 12-spline inner bore, and is 1.24 inches wide. It directly replaces Jabsco impeller 1210-0001 and is applied on Volvo Penta 3.0, 4.3, 5.0, and 5.7 engines, Volvo Penta AQ engines, Indmar 200 engines, and Yanmar engines.

Specifications

• Brand: Johnson Pump
• Manufacturer Part Number: 09-1027B-1
• Pump Model: F5
• Material: MC97
• Outer Diameter: 2.25 inches
• Inner Diameter: 12 splines
• Width: 1.24 inches
• Weight: 0.21875 pounds
• Kit Includes: Impeller, gasket, o-ring, and 7 grams of impeller lubricant
• UPC: 7330717009182

Fitment

• Volvo Penta 3.0, 4.3, 5.0, 5.7, AQ
• Indmar 200
• Yanmar

Replaces (OEM)

• Jabsco 1210-0001

Frequently Asked Questions

What does the Johnson Pump 09-1027B-1 kit include? The 09-1027B-1 kit includes the F5 MC97 impeller itself, a gasket, an o-ring, and 7 grams of impeller lubricant, so a full pump service can be done from this one kit.

Is the Johnson Pump 09-1027B-1 a direct replacement for Jabsco 1210-0001? Yes, the Johnson Pump 09-1027B-1 replaces Jabsco 1210-0001, sharing the same 2.25 inch outer diameter, 12-spline inner bore, and 1.24 inch width.

What material is the 09-1027B-1 impeller made from? It is molded from Johnson Pump's MC97 rubber compound, formulated for stable pressure delivery, long service life, and minimized swelling compared to standard rubber impellers.

What are the dimensions of this impeller? The Johnson Pump 09-1027B-1 F5 impeller has a 2.25 inch outer diameter, a 12-spline inner diameter, and a width of 1.24 inches.

Which engines use the 09-1027B-1 impeller kit? This impeller kit is applied on Volvo Penta 3.0, 4.3, 5.0, and 5.7 engines, Volvo Penta AQ engines, Indmar 200 engines, and Yanmar engines.

How much does the 09-1027B-1 impeller kit weigh? The Johnson Pump 09-1027B-1 F5 MC97 impeller kit weighs 0.21875 pounds.

Does this impeller have self-priming capability? Yes, the 09-1027B-1 MC97 impeller is designed with excellent self-priming capability, so the pump draws water and reaches sufficient cooling flow quickly at engine startup.

Why do impellers like the 09-1027B-1 need periodic replacement? Rubber impellers wear and fatigue over time, and a worn or damaged Johnson Pump impeller can lose cooling flow and lead to engine overheating or breakdown, which is why the MC97 compound in the 09-1027B-1 is engineered to resist that fatigue for longer.

Is a gasket included with the 09-1027B-1, or does it need to be bought separately? A gasket is included in the 09-1027B-1 kit along with the impeller, an o-ring, and 7 grams of impeller lubricant, so no separate gasket purchase is needed for this service.

What is the pump model for the 09-1027B-1 impeller? The Johnson Pump 09-1027B-1 is built for the F5 pump model.

Does the 09-1027B-1 impeller need lubricant during installation? Yes, and the kit already includes 7 grams of impeller lubricant along with the 09-1027B-1 impeller, gasket, and o-ring for installation.