Dockside Marine
63116 Hwy 10,
Bogalusa LA, 70427
Tel:(985) 732 - 7600
Crestliner MX 21 - main image

2021 Crestliner MX 21

Year 2021
Length 21'5 ft

The MX 21 does more than revolutionize the world of aluminum bass boats—it literally redefines it. Constructed from marine-grade high-strength aluminum, this incredible tournament bass boat is lighter, easier to maintain, and fast to plane—with no compromises on interior fishing features. It’s 250 horsepower of top-level performance meeting a 21-foot pad hull structurally designed for stability and handling—a combination that puts every angling advantage at your disposal whether you’re competing at the highest levels of competition or just want to be your best during a weekend at the lake.

The massive 60-square-foot casting deck on this bass boat features impressive storage volume with port and starboard rod lockers and a center storage locker, while the bow is equipped with port and starboard lockers that can each accommodate five rods (up to 8') and an additional center storage compartment. Move to the stern and you’ll find even more storage plus a 45-gallon livewell that’s sure to keep your catches in prime condition until weigh-in. No matter if you’re looking for power and speed, next-level shallow-water performance or a tournament-worthy contender, the MX 21 is a Crestliner bass boat built to bring out your best.


Year Built 2021
Category Power
Length Overall 21'5 ft
Beam 8'1 ft
Number of Passengers 4
Construction Aluminum
Deadrise Angle 10 °
Engines 1
Fuel Tanks 1
Fuel Tank Cap. 40 gal
Dry Weight 1,567 lb

Engine 1 Specifications

Type: Outboard
  • Console includes windscreen, switch panel with lit toggle switches, multifunction gauges, SeaDek accents, space for up to 12" flush mounted graph 
  • Speedometer/fuel and tachometer/trim multifunction gauges, black sterling 
  • Steering wheel, stainless steel w/comfort grip 
  • Tilt Hydraulic steering 
  • Horn
  • Seat, premium bucket (2) 
  • Seat, Pro fishing w/pedestal 
  • Seat, butt, removable w/adjustable pedestal 
  • Pedestal floor bases (2)
  • Tool holder (bow) 
  • Platform (bow) 
  • Recessed trolling motor foot control (bow) 
  • Storage compartment, step box (between premium bucket seats) 
  • Platform (stern) 
  • Storage compartment, (port & starboard, stern) 
  • Storage compartment, battery (stern) 
  • Drink holders (3)
  • Livewell, 45 gal. aerated & fully insulated w/dual lids, divider, timer & recirculating system w/pump out (stern) (38.5Lx17Wx16D)
Rod Storage
  • Rod storage, lockable with top mounted rod tubes/rack and open storage below (port/stbd, bow) (5 tubes per side @ 8'6" capacity) 
  • Rod holder w/strap (port) 
  • Bow topside rod strap port and stbd
Interior Features
  • Wood-free construction 
  • Bilge pump (automatic) 
  • Lanyard, ignition stop switch 
  • Level flotation 
  • Light, navigation 
  • Side panels
Exterior Features
  • Paint process, urethane 
  • Hull, aluminum, all-welded 
  • Rib construction, cross & side 
  • Ribs, extruded, extra strength 
  • Gunnel, extruded, extra strength with integrated SureMount accessory track system 
  • Rub rail 
  • Cleats, black composite (4) 
  • Transom drain plug 
  • Eyes, stainless steel (bow & stern)
  • 6" offset manual jack plate 
  • MinnKota Fortrex 80/52" 24V Trolling Motor 
  • Trim switch (bow) 
  • Trolling motor hardwired 24/36V 6 gauge harness (bow)