Boat owners, this Johnson Pumps impeller is essential maintenance for your marine engine's cooling system! The F8 model is made from durable neoprene specifically designed for cooling applications. It measures 3.74 inches in outer diameter, 2.48 inches in width, with splines on the inner diameter for proper fit. This exact replacement works for Jabsco models 836-0001 and 17935-0001 too. Remember - impellers should be replaced every year to prevent overheating and engine damage. This original Johnson part ensures perfect compatibility with your pump rather than risking a generic that might not fit right. The quality construction means reliable water pumping through your cooling system season after season. Keeping a spare onboard is just smart boating practice - if your impeller fails out on the water, you'll be glad you have this backup. Installation is straightforward if you're handy, or any marine mechanic can swap it out quickly. Don't wait until you're dealing with overheating issues - preventive maintenance with quality parts like this Johnson impeller keeps your engine running smoothly and avoids costly repairs down the line.
Free 30-day returns 
Free 30-day returns
