R31 Stern Drive

LOA

9.58 m

Beam

2.99 m

Seating Capacity

Yacht Certified

An ideal choice for family boating, Cobalt’s new Model R31 sterndrive is a ‘just-right’ sized day boat that also offers style, ample interior room and a full complement of luxury features. With its 31’ 5” LOA and 9’ 10” beam, the R31 delivers smooth handling, impressive performance, luxury amenities and the comfort of Cobalt’s legendary ride.

Technical Details

Length Overall w/Swim Platform	9.58 m	31’ 5’’
Beam	2.99 m	9’ 10’’
Deadrise at Transom	21º	21º
Fuel Capacity	606 L	160 gal
Freshwater Capacity	68 L	18 gal
Bridge Clearance (windshield only)	1.63 m	5’ 4’’
Bridge Clearance w/ Hardtop	2.77 m	9’ 1’’
Bridge Clearance w/ Hardtop low position	2.41 m	7’ 8’’
Draft Drive Up, Twin Eng	.66 m	26’’
Draft Drive Down, Twin Eng.	1.12 m	44’’
Dry Weight, w/Twin Engines (options not included)	4309 kg	9500 lbs
Boat Certified Capacity		Yacht Certified
Boat Certified Capacity w/gear		Yacht Certified

VOLVO PENTA STERNDRIVE POWER
- Twin V8-300CE-G DP Joystick – 300 hp (221 PkW)
- Twin V8-350CE-G DP Joystick – 350 hp (261 Pkw)
- Twin V8-380CE DP Joystick – 380 hp (283 PkW)
- Twin V8-430CE DP Joystick -430 hp (321 PkW)
MERCRUISER STERNDRIVE POWER
- Twin 6.2 L MPI ECT-300 B3 DTS Axius – 300 hp (221 PkW)
- Twin 6.2 L MPI ECT-350 B3 DTS Axius – 350 hp (261 PkW)
- Twin 8.2 Mag ECT B3X DTS Axius – 380 hp (283 PkW)
- Twin 8.2 Mag HO ECT B3X DTS Axius – 430 hp (321 PkW)
Dash and Instrumentation
- Compass, Digital
- Composite Helm
- Eyebrow, Custom Stitching
- Depth & Water Temp Gauge Pkg.
- Digital Switching
- Glass Cockpit, Dual Garmin 9” Displays
- Hour Meters, Digital
- Stainless Steel Switches
- Steering Wheel, Black Leather/Stainless Steel
- USB/USB-C Receptacle Charger
Exterior
- Anchor Locker
- Bow Scuff Plate, Stainless Steel
- Cleats (Bow, Midship, Stern)
- COBALT Lettering, Chrome Backlit
- Cockpit Entry Step
- Extended Running Surface
- Graphics, Molded-In Gelcoat
- Motorbox Actuator
- Ski Tow – Stainless Steel
- Stainless Steel Engine Vents
- Swim Platform w/Flip-Down Swim Step
- Transhield Shipping Cover
- Windshield, Black Frame
Interior
- Bench Seat Storage
- Bow Walk-Thru Door
- Cooler, 36 qt. (cockpit seat only)
- Dual Sundeck Convertible Lounger
- Head w/Pump Out Porta Potti
- Helm Seat, Extra Wide
- Ice Chest, Bow
- Seating Varadense Comfort
- Sink Console (head compartment)
- Trash Receptacle
Stereo
- iPod/USB/MP3 Port
- Sound System w 6 Spkrs.
- Stereo Remote, Dash
- Stereo Remote, Transom (Prem/Plat Sound)
Structure, Safety, & Performance
- 10/5/3 Year Warranty Protection
- Battery Switch, Dual w/ACR
- Circuit Breaker Protected Elec System
- Composite Floor
- Composite Seat Bases
- Composite Transom
- Fiberglass Cockpit Liner
- Fiberglass Stringer System
- Fire Extinguisher(s), Manual
- Ignition Safety Switch
- Kevlar Reinforced Hull
- Stainless Steel Windshield Braces
- Through Prop Exhaust
Canvas
- Bow Tonneau Cover
- Cockpit Tonneau Cover
- Mooring Cover
- Shade Sail, Aft
- Shade Sail, Bow
Dash and Instrumentation
- Glass Cockpit, Dual Garmin 12” Displays
- Radar, Garmin Fantom 18’’
- Steering Wheel, Leather Color-Matched
- VHF Radio
- XM Weather
Engine Options
- DTS (Merc)
- EVC w/PTA & Cruise (Volvo)
- Trip Computer (Volvo EVC)
- Anti-Corrosion System (Vol 300hp)
- Seacore (Merc)
- TCC (Titanium Ceramic Coating)-Volvo
- VOL Total Control Pkg (Autopilot & DPS)
Exterior
- Arch w/Hard Top
- Arch w/Hard Top/Electric Awning
- Arch w/Sunshade
- Board Rack Covers, Roswell
- Camera, Rear Facing (req. Hardtop)
- COBALT Lettering, Satin Black (exterior)
- COBALT Lettering, Satin White (exterior)
- Fender Clips w/Line (6) w/Storage
- Flagpole w/Flag
- Footrest, Helm (Fold-Down)
- Sof-Trac Mat, Swim Platform
- Splash & Stow¬¨√Ü, Inflatable Island
- Splash & Stow¬¨√Ü, Inflatable Mat
- Swim Platform Hydraulic w/Flip-Down Step
- Swim Platform Transom Lighting
- Teak Swim Platform
- Transom Gate
- Transom Shower (cold water)
- Transom Tilt Switches (twin)
- Underwater Lighting
- Wakeboard Racks, T2 (Roswell) w/clamps
- Windows, Hull Side
Interior
- Air Compressor w/Holder
- Air Conditioning (Head/Helm)
- Bow Center Cushion Insert
- Bow Table (additional)
- Closet-Watersports (Head Compartment)
- Cockpit Heater
- Convenience Package
- Cooler, Soft-Side 37L
- Dinette Table w/Bow & Cockpit Receptacle
- Dinette Table, Solid Teak
- Floor Covering, Sea Grass (bow, cockpit)
- Floor Covering, Sea Grass (head)
- Floor Covering, Sea Grass (helm footrest)
- Gray Water System
- Head, Vac (Thetford)
- Head, Vac (Thetford) w/Macerator
- Helm Seat, Electric
- Helm Watch, Passenger
- Interior Trim Pkg., Wood
- LED Interior Accent Lighting (RGB) w/Hardtop
- LED Interior Accent Lighting (RGB) w/o Hardtop
- Phone Chargers, Bow (2)
- Snack Stand w/Refrigerator
- Sof-Trac Mat (bow, cockpit)
- Sof-Trac Mat (head)
- Sof-Trac Mat (helm footrest)
- Sof-Trac Mat (watersports closet)
- Stainless Steel Foot Tread (helm only)
- Teak Floor, Bow & Cockpit
- Teak Floor, Head
- Teak, Fold-Down Footrest
- Throw Pillows, Weighted (10)
- Throw Pillows, Weighted (4)
- Wireless Phone Chargers, w/Holder
Stereo
- HK Plat Sound w/Transom Spkrs.
- HK Plat Sound w/Transom Spkrs.-Hard Top
- HK Sound w/Transom & Arch Spkrs-2 pr. (Sunshade)
- HK Sound w/Transom & Sandbar Arch Spkrs (Hardtop)
- Prem Sound w/Transom & Arch Spkrs-1 pr.
- Prem Sound w/Transom Spkrs.
- Premium Sound w/Transom Spkrs.-Hard Top
- Satellite Radio System
- Stereo Remote, Transom (Std. Sound)
Structure, Safety, & Performance
- Battery Maintainer/Charger, 110v
- Battery Maintainer/Charger, 220v
- CE Requirements w/Auto Fire Extinguisher
- Fire Extinguisher, Automatic System
- Gyroscope, Seakeeper 1
- Rearview Mirror, Roswell w/Custom Cover
- Tool Kit
- Trim Tabs w/Indicators w/Autoglide
- Trim Tabs w/Indicators, w/o Autoglide
- Windlass w/Docking Lights System

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