Technical specifications

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Crownline 21 SS


With the Super Sport 21 SS, Crownline delivers a first class, fun boat with walk-thru windshield, walk-thru transom, Super Sport interior with bucket seats and a sundeck with rear bench seating. And that's just a start. Storage for gear can be found under the rear bench seat and there's in-floor ski and kneeboard storage compartments, so they’re never far from reach. Grab your favorite water toys, grab some friends and hop aboard the Crownline Super Sport 21 SS for a guaranteed great time.


Base price $43,790 (USD)
Monthly payments $289/month
Boat type / Category
Boat type Bowrider
Category Water Sports, Ideal for Trailering
Assembly West Frankfort, IL, US
Warranty 5 years
Dimensions / Weight
Length overall 6.4 m (20′10″)
Beam 2.6 m (8′6″)
Bridge clearance 1.2 m (4′1″)
Height on trailer N/A
Draft up 0.41 m (1′4″)
Draft down 0.76 m (2′6″)
Dry weight 1,678 kg (3,699 lbs)
Hull deadrise 16°
Cabin headroom N/A
Fuel tank 155 l (41 gal)
Water tank N/A
Waste tank N/A
Holding tank N/A
Passenger capacity 10
Sleeping capacity N/A
Max hp 300 hp
Base engine MerCruiser 4.3 MPI
Drive / Propulsion Alpha one
Engine type V6
Displacement 4.3 litres
Power 220 hp @ 4,400 rpm
Induction Atmospheric
Fuel requirement Regular
Other engines
  • N/A
  • MerCruiser 4.5 MPI 250hp - Alpha one
  • MerCruiser 4.5 MPI 250hp - Bravo three
  • MerCruiser 6.2 300 300hp - Bravo three
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