Bedford Sales
879 Bedford Rd,
Morris IL, 60450
Harris Grand Mariner SL 250 Twin Engine - main image

2018 Harris Grand Mariner SL 250 Twin Engine

Year 2018
Length 26 ft

Gone are the days where we had to choose performance OR comfort. The Grand Mariner SL 250 Twin Engine provides both in excess. With the SL floor plan, you’ll enjoy two plush bow lounges, a comfortable amidships lounge, an UltraLux high-back reclining helm seat and a single rear-facing lounger with flip-top backrest. A 12-foot Bimini top, soft-sided cooler, swim deck with four-step boarding ladder and six-speaker Polk stereo add to the creature comforts, as do the VesselView4 dual engine monitor, stainless steel grill, entertainment center with optional refrigerator and even an entertainment galley with bar stools, sink and wine cellar. Great lengths have been taken to ensure the safety and stabile performance of the Grand Mariner SL 250 Twin Engine, such as three tapered-diameter reinforced pontoon tubes using 0.125-gauge aluminum and a 100-gallon forward-mounted fuel tank to minimize bow rise.

Please note: This boat model may or may not be in-stock. A Nationally Advertised Price, if listed, may change without notice or include accessories not fully described herein. Please contact your local, authorized dealer for exact details on model availability and package pricing.


Year built 2018
Category Power
Length 27'2 ft
Beam 8'6 ft
Max. Draft 1'9 ft
Number of Passengers 11
Construction Aluminum
Min Draft 1'1 ft
Engines 2
Fuel Tanks 1
Fuel Tank Cap. 93|gallon
Dry Weight 4,397 lb
Bridge Clearance 5'2 ft

Engine 1 Specifications

Type: Outboard

Engine 2 Specifications

Type: Outboard
  • 12 Volt Outlet
  • 12' Bimini (1.25" frame w/ SST quick release)
  • Aluminum UnderSkin Kit (incl. w/ Perf pkgs, PIII or Twin Engine Platform)
  • Courtesy Lighting
  • Digital Deptsounder
  • Double Battery Selector Switch (incl 2nd battery tray)
  • Full Length Keel
  • Gate Floor Stops (Dealer Install)
  • Helm Storage Door
  • Lockable Glovebox
  • Manual Fire Extinguisher
  • Mooring Cover (E-Z Clip w/ storage bag & vents)
  • Quick Release Fender System (2-5.5" fenders, 2 straps, 4 quick release)
  • Removable Windscreen
  • Removable Woodgrain Table w/ Molded Drink Holders (Dealer Install)
  • Soft-Sided Cooler w/ Logo
  • Stainless Steel 4-Step Flip-Down & Telescoping Ladder
  • Stainless Steel Cupholders
  • Stainless Steel LED Docking Light Pods
  • Starboard Gate (na. w/ Entertainment Bar)
  • Tachometer
  • Tilt Steering
  • UltraLux Helm Seat (Highback Recliner)
  • 16-inch on center placed cross members
  • Decking with tongue & groove water-prevention system
  • Decking, 3/4" 7-ply pressure treated plywood
  • Full-length pontoon brackets, Total Torsion Reduction System
  • Stainless Steel Flip-up Cleats
  • Underdeck Wiring Protection System


  • Polk stereo - incl 6 Jensen speakers, plus rear lounge & transom remotes