G3 Tunnel Hull Boats For Sale

G3 tunnel hull boats are all-welded aluminum jet rigs built under the Gator Tough CCJ line for skinny-water river and shallow-flats fishing, offered in 17-, 18-, and 20-foot models plus the 1860. The defining feature is a deep tunnel molded into the hull paired with an outboard jet drive, so the jet intake sits up inside the tunnel rather than below the hull bottom. When the boat is on plane and the trim is dropped, water flows up through the tunnel ridge to feed the jet, letting the running surface of the hull — not the engine — be the lowest point. That layout is what gets these boats up shallow rivers and away from prop-driven traffic.

The 20 CCJ measures 20 feet 2 inches in the hull, 24 feet 6 inches to the back of the motor, with a 97-inch beam and a 73.5-inch floor that is wide enough to set three fold-out chairs side by side. The hull uses .100-gauge aluminum, which keeps weight down, and the boat carries an 1,850-pound or eight-person capacity with a 26-gallon fuel tank under the rear compartment. The 18 CCJ is 18 feet 1 inch with an 88-inch beam and a 17-gallon tank. Both ride on an all-aluminum transom and include a 10-micron fuel filter, with navigation and anchor lights mounted aft so they stay out from underfoot.

Power on the 20 CCJ is a Yamaha 150/105 jet outboard — a 150-horsepower powerhead that delivers the equivalent of about 105 horsepower at the jet, since a jet drive loses roughly 30 percent efficiency. That setup runs around 32 to 35 mph, with about 38 mph reachable with two people aboard, and gets the boat into four to six inches of water. Yamaha jet outboards are available in 6040, 9065, 150/105, and 11580 designations; the 18 typically runs a 90 knocked down to 65 or a 115 knocked down to 90. An aftermarket Jet Doctor plate is a common add-on to plane faster and keep the stern up without sacrificing top speed, and intake fins are needed on the larger 150 to run properly. The jet has a reverse bucket that drops for full forward thrust and lifts to shoot water back for reverse.

Storage is the strong point of the 20 CCJ. It has lockable bow drop storage, a lockable box on each side of the console large enough for a full bass gear bag, and two lockable rod lockers that hold 7-foot rods from the factory; pulling the tube end caps lets longer rods, up to 9-foot fly rods, fit. The 20 also adds lockable storage under each rear jump seat, which the 18 does not have. Livewells include a 31-gallon rear well measuring 14 by 34 inches with a removable divider, plus a 15-by-15-inch well under the driver's seat for bait, and the forward-facing/rear-facing console seat holds a 14-gallon livewell or cooler. All pumps, breakers, batteries, and the fuel cell sit under accessible rear hatches.

At the helm, the standard CCJ keeps it simple with master power, bilge, fore and aft aerator, navigation light, interior light, and horn switches. The Deluxe model adds a Yamaha tachometer alongside the fuel gauge, chrome-finished steering wheel and handlebar, silver paint, and seats, and is also offered in olive drab and camo. Floors come with non-skid finish on the Deluxe, with SeaDeck or AquaTraction available for a quieter, family-friendly surface; the standard vinyl floor can be slick when wet. The bow doubles as a casting platform when the jump seats fold down, and a track system for rod holders, cup holders, or duck blinds is standard across the line.

When weighing a G3 tunnel hull boat for sale, the model year matters for layout: newer CCJs moved the console rearward to lengthen the bow and rod-locker storage, while older builds keep more open rear deck space. Common owner additions include Minn Kota Terrova or Ulterra trolling motors with spot-lock, Power-Pole or stick-style shallow-water anchors, multi-bar rod-holder mounts, and a steering wheel knob, since outboard jets have slower steering response than inboard jets and take some getting used to at low speed.