Quicksilver – Idler Pulley | MerCruiser V8 Series | Flat 3.5-Inch Pulley | 865444T Yamaha-F75--F75A-2009 Marine-grade flame arrestor screens meeting

Marine-grade flame arrestor screens meeting SAE J1171 certification

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That means more dependable seasons on the water and fewer unexpected repairs

• Maintains Cooling System Seal – Helps keep the system properly sealed to support consistent pressure

Aluminum anodes provide consistent protection in both environments

Quicksilver – Idler Pulley | MerCruiser V8 Series | Flat 3.5-Inch Pulley | 865444T Yamaha-F75--F75A-2009 Marine-grade flame arrestor screens meetingQuicksilver Idler Pulley MerCruiser V8 Series Flat 3. 5 Inch Pulley 865444T Overview There is a certain comfort in hearing your engine belt spin smoothly, with no chirps or chatter. When the belt system is right, you can feel it in the throttle response, the steering assist, even the way the boat settles into its cruise speed. If your idler pulley is worn, the whole engine starts to sound unsettled. This Mercury Marine part brings that quiet