THE

COBALT R4 SURF

Interior of a boat with gray seats and dashboard

Boat interior with steering wheel and dashboard

Interior of a boat with brown and black seats and dashboard.

EXPLORE THE COBALT R4 SURF

The R4 Surf has one of the lowest profiles of the R Series — putting you closer to the water and making trailering and storing easier. Featuring Cobalt's Custom Wave Technology surf system with multiple hard ballast tanks, the Volvo FWD powertrain, and a specifically redesigned surf hull that integrates with our best-in-class Surf Gate™ technology, shape your perfect wave every time.

Cobalt's Surf Series seamlessly integrates Surf Gate™ with a custom-designed surf hull, all powered by Volvo Penta. Nearly all boats in the series employ traditional hard ballast tanks for wave customization. The R31, R33 and R35 Surf models adopt a streamlined design without ballast tanks. This tailored approach ensures agility and simplicity, redefining expectations for surfing enthusiasts across the entire Surf Series.

Length

24'3"
Dry Weight

5,650 LBS
Seating Capacity

13
Power

350 - 430 HP
Beam

102"
Max Factory Ballast

1,226 LBS
Fuel Capacity

50 GAL
Hull Type

CUSTOM SURF HULL

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LEARN ABOUT COBALT'S SURF SYSTEM

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MONSOON FORWARD DRIVE

Cobalt's Custom Wave Technology begins with the Monsoon FWD powertrain, uniquely engineered with forward-facing Duoprops positioned well under the boat for added safety. The counter-rotating props pull the boat through the water rather than pushing it, resulting in better bite, acceleration, and speed in a more efficient, smooth way, increasing fuel economy. Because the Forward Drive is under the boat, there's less noise and exhaust, meaning more comfort. The adjustment of drive trim is also one of the single biggest factors to quickly adjusting a wave to your liking.

Engine Options

MONSOON M6 6.2L DIRECT INJECTED

TORQUE – 460 FT-LBS @ 3800 rpm • POWER – 430 HP @ 5600 rpm
The perfect price to performance ratio. Featuring all-new advanced MEFI engine management, the M6 provides precise torque delivery for effortless wake creation across a wide range of surf and wake scenarios. An all-new engine shroud with bold Monsoon branding makes a statement under the hatch, while centralized drain locations simplify service and winterization. Unbeatable power, ultimate reliability, and the perfect balance of performance and value.
Engine Options

MONSOON 5.3L DIRECT INJECTED

TORQUE – 460 FT-LBS @ 3800 rpm • POWER – 430 HP @ 5600 rpm
The Monsoon line of engines, the 5.3L, and 6.2L, were developed to offer unmatched performance, fuel economy, reliability and sound reduction. The 6.2L even has the lowest sound level at various RPM's and fuel economy levels comparable to smaller engines. Working with industry leaders like GM® Marine, Roush®, Davinci®, and McLaren Engineering® to design and perform the research and development necessary to introduce a line of direct injection engines to the boating industry like no other.

Command Center Options

PREMIUM SPORT DASH™

Driving with the Cobalt Custom Wave Technology couldn't be easier. Just turn on Speed control. This is the "ON and OFF" for your surf system. Select your rider profile and the system automatically configures the boat per the pre-saved profile setting—ballast, drive trim, speed, surf left or surf right. Cobalt is set up with two starter profiles: Mellow and Steep. These will give you a starting point for setting up your wave. Then when the surfer is ready, put the throttle down and the boat automatically adjusts to the profile surf settings and speed. With a touch of the surf button on the dual Garmin Glass Cockpit touchscreen, the driver can switch the surf wave from right to left, even while underway.
Command Center Options

7-INCH TOUCH SCREEN

The 7-inch touch screen has all your driving vitals along with everything the captain needs to set up the boat to ride. Whether the day calls for wakeboarding or surfing at any level from beginner to pro, everything can be accomplished simply and easily.

Throttle Options

MONSOON THROTTLE CONTROL

4 throttle control functions available for non-surf models. Trim Assist — Returns drive to down for launch and return to idle and moves to preset set point above 20mph. Button light indicates system is active. Cruise Control — speed is set and maintained at the push of the button. Button light indicates system is active. Cruise Speed Up/Down — changes engine cruising RPM by 250rpm increments. Surf Models have trim assist only, with the advanced cruise control options integrated into surf system on the Garmin touch-screens. Integrated "kill" switch, Neutral Lock out and Trim up/down.

Gray tandem-axle boat trailer, studio render

COBALT TRAILERS

For the first time ever, you can order a custom-built Cobalt trailer engineered to match the running surface of your new Cobalt. Now you can have your trailer painted to perfectly match your Cobalt gelcoat. Further customize your trailer with over fifty different options to choose from, including nine different wheel designs. Cobalt trailers are NMMA certified and come with a 5-Year Limited Warranty. See your dealer for more information..