Cobalt R31 Surf Boat
Ski / wake / surf · Current model source · by Cobalt
Key specs
- Length (LOA)31' 5"
- Beam9' 10"
Specifications
| Length (LOA) | 31' 5" (31.42 ft) source |
| Beam | 9' 10" (9.83 ft) source |
| Draft | 38.5 in source |
| Air draft / bridge clearance | 9' 1" (9.08 ft) (Highest of the builder's figures ('Bridge Clearance w/ Hardtop'). Cobalt prints 'Bridge Clearance (windshield only) 5' 4'' / 1.63 m'; 'Bridge Clearance w/ Hardtop 9' 1'' / 2.77 m'; 'Bridge Clearance w/ Sunshade 9' / 2.74m'.) source |
| Fuel capacity | 160 gal source |
| Water capacity | 18 gal source |
Only figures the builder publishes are shown. Missing rows were not published in the sources we checked.
Official model page on cobaltboats.com
Builder
Brochures and media
- hero image (link only; © the manufacturer)
- video (link only; © the manufacturer)
USCG recalls
- Recall 25MF0036, opened 2025-01-21 — models listed: A29,R30,R31,R33,R35
Questions and answers
How long is the Cobalt R31 Surf Boat?
The Cobalt R31 Surf Boat is 31' 5" long (31.42 ft), per the builder's published specs. source
What is the beam of the Cobalt R31 Surf Boat?
The beam (width) is 9' 10" (9.83 ft). source
What is the maximum horsepower for the Cobalt R31 Surf Boat?
This is not published by the builder in the sources we checked for the Cobalt R31 Surf Boat. Ask a dealer for the current figure.
How many people can the Cobalt R31 Surf Boat carry?
This is not published by the builder in the sources we checked for the Cobalt R31 Surf Boat. Ask a dealer for the current figure.
How much fuel does the Cobalt R31 Surf Boat hold?
Fuel capacity is 160 gallons. source
How much does the Cobalt R31 Surf Boat weigh?
This is not published by the builder in the sources we checked for the Cobalt R31 Surf Boat. Ask a dealer for the current figure.
What does the Cobalt R31 Surf Boat cost?
This is not published by the builder in the sources we checked for the Cobalt R31 Surf Boat. Ask a dealer for the current figure.
Is the Cobalt R31 Surf Boat still in production?
It is listed as a current model on the builder's site. source
Will the Cobalt R31 Surf Boat fit under a bridge?
The builder's published air draft (bridge clearance, the height above the waterline) is 9' 1" (9.08 ft). Note: Highest of the builder's figures ('Bridge Clearance w/ Hardtop'). Cobalt prints 'Bridge Clearance (windshield only) 5' 4'' / 1.63 m'; 'Bridge Clearance w/ Hardtop 9' 1'' / 2.77 m'; 'Bridge Clearance w/ Sunshade 9' / 2.74m'. Load, trim, water level and added gear (antennas, radar, a raised top) change the real clearance, so leave a margin and check the source. source
Are there USCG recalls for the Cobalt R31 Surf Boat?
The USCG recall list has 1 recall whose model names match this model: 25MF0036. Check the HIN with a dealer to see whether a specific boat is affected. source
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