All Pricing on Labor Day Specials Already Includes Discount
Flex some muscle! Tuned up with Mercury Racing components to deliver blistering speed, the V8 4.6L 300R outboard delivers crisp throttle response, thrilling top-end power and confident control, the perfect match for a wide variety of high-performance boats. The 300R midsection and gearcase options, tie-bar and steering choices allow the creation of a near-custom configuration to provide optimal performance and ease of installation for most applications, including re-power upgrades.
To squeeze more power from less fuel, naturally aspirated Mercury Racing V8 outboards feature Advanced Range Optimization (ARO), a closed loop fuel-control system that utilizes electronic sensors to precisely adjust the fuel mixture for the best possible efficiency at all speeds.
Key Features
4.8L V8: The 300R is part of the Mercury Racing V8 FourStroke outboard lineup, designed to be high-winding, rugged and reliable. It's loaded with advanced design elements and Mercury Racing technology to go quicker, faster and farther than previously imagined.
Short Runner Intake: A short-runner intake manifold and high-lift intake camshaft designed specifically for the 300R combine to produce quick acceleration.
RPM Range: To maximize top speed and propping options the wide-open throttle (WOT) operating range is extended to 5800-6400 rpm.