2019 Harris Grand Mariner SEL 250

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Grand Mariner SEL 250



Experienced pontoon boat owners appreciate the Grand Mariner Series for many reasons: sleek styling, thoughtful appointments, cutting-edge technology and proven performance — particularly the option for stern drive power. We guarantee the Grand Mariner SEL 250 won't disappoint. The SEL 250's open floor plan offers two spacious bow lounges, amidships lounge opposite the UltraLux high-back reclining helm seat and a luxurious rear-facing lounge with flip-top backrest. Plus, it has an open transom for easy access to the swim deck, with an optional stainless steel railing. If you prefer, you can replace the portside bow lounge with two UltraLux bow seats and a flip up table. Because Harris understands the needs of the Grand Mariner customer, the SEL 250 comes equipped with a ski tow pylon and performance package. Owners also may elect to add the available ski locker and changing room with privacy curtain. And then there's that stern drive power offering 350hp, and with easy engine access. The SEL 250 is where technology, naval architecture and true on-water livability meet luxury, handling and style, without sacrifices and fuss.

  • Length overall (incl. ladder): 27 ft. 9 in. (8.46 m)
  • Pontoon length: 25 ft. (7.62 m)
  • Pontoon Diameter: 25 in. (63.50 cm)
  • Width (Beam): 8 ft. 6 in. (2.59 m)
  • Weight - 3-25" tubes-(All Options, No Fuel, No Engine, No Batteries): 5580 lb. (2,531.04 kg)
  • 3-25" Tube Capacity: persons/Max cap. (varies by engine): 13 persons; 2935 lb. (1,331.29 kg)
  • Max H.P. -3 tubes (PIII Package): 350 hp (260.99 kW)
  • Fuel capacity - PIII Package: 81 gal. (306.62 L)
  • Draft down with 25" tubes: 30 in. (76.20 cm)
  • Draft up with 25" tubes: 13 in. (33.02 cm)
  • Bridge clearance (Bimini & stern light down/Lowered Tower or Arch) with 25" tubes: 62 in. (157.48 cm)
Convenience Features
  • 12 Volt Outlet
  • 12' Bimini (1.25" frame w/ SST quick release)
  • Aluminum UnderSkin Kit (incl. w/ Perf pkgs and Twin Engine Platform)
  • Courtesy Lighting
  • Double Battery Selector Switch (incl 2nd battery tray)
  • Fence Mounted Docking Lights
  • Full Length Keel
  • Gate Floor Stops (Dealer Install)
  • Heavy Duty Removable Ski Tow Pylon
  • High Performance Platform Pkg: includes a 27" diameter center tube chassis, skin kit to front crossmember, hyd strg. Includes ski tow pylon & in-floor storage
  • Helm Storage Door
  • Lifting Strakes
  • Lockable Glovebox
  • Mooring Cover (E-Z Clip w/ storage bag & vents)
  • Manual Fire Extinguisher
  • 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 Telescoping Ladder
  • Stainless Steel Cupholders
  • Stainless Steel LED Docking Light Pods
  • Tachometer
  • Tilt Steering
  • UltraLux Helm Seat (Highback Recliner)
  • Main Desert Beige Seagrass
  • Rear Desert Beige Seagrass
  • Multi-Function Digital/Analog Gauges (GPS Speedo, fuel, depth, tach with engine data)
  • JL Zone Control (includes 6 Fusion speakers)
Decks & Floor
  • 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
Accent Color Options
  • Black Sapphire Accent
  • Sparkling Champagne Accent
  • Midnight Blue Accent
  • Deep Red Metallic Accent
  • Platinum Silver Accent
Bimini Options
  • Standard Black 12' Bimini (Included Only with Black, Ebony, Sterling Gray, White Diamond, Mocha Pearl Panel Color)
  • Standard Blue 12' Bimini (Included Only with Midnight Blue Panel Color)
  • Standard Red 12' Bimini (Included Only with Fusion Red Panel Color)
  • Black Anodized Bimini (Requires/Included with Black Anodized Fence Option)
  • Standard Tan 12' Bimini (Included Only with Champagne Panel Color)
  • Black Delta Tower - (manual folding - incl bimini & LED lights)
  • Black EVO Tower (power-folding - incl black bimini)
Fence Options
  • Black Anodized Fence Rail, Rubrail & Bimini Structure (na w. Bimini Electric Power Top)
  • Stainless Steel Rubrail Insert
Flooring Options
  • **Must Choose One MAIN and One REAR Flooring Option**
  • Main Beige Vinyl
  • Main Desert Beige Seagrass
  • Main Gray Seagrass
  • Main Sand Vinyl
  • Main Gray Vinyl
  • Main Beachwalk Seagrass
  • Main Dark Woven Teak
  • Main Gray Woven Teak
  • Main Graywood Woven Teak
  • Main Oakwood Woven Teak
  • Main Teak Vinyl
  • Main Driftwood Teak Vinyl
  • Rear Beige Vinyl
  • Rear Desert Beige Seagrass
  • Rear Gray Seagrass
  • Rear Beachwalk Seagrass
  • Rear Gray Vinyl
  • Rear Sand Vinyl
  • Rear Dark Woven Teak
  • Rear Gray Woven Teak
  • Rear Graywood Woven Teak
  • Rear Oakwood Woven Teak
  • Rear Driftwood Teak Vinyl
Canvas Options
  • 12' Lighted Bimini
  • Black Seat Covers
  • Bimini, 10' electric power top (incl Bimini LED lights)(black anodized frame w/ black canvas)
  • Bimini, 10' electric power top (incl Bimini LED lights)(na w. black anodized opt.)
  • Double Bimini - NA w/ Lighted/Power Top/Arch
  • Double Bimini (Req. Delta Tower or Sport Arch)
  • Full Enclosure (Includes Double Bimini)
Color Options
  • Black Sapphire
  • Champagne
  • Midnight Blue
  • Sterling Gray
  • Ebony Metallic
  • Fusion Red
  • Mocha Pearl
  • White Diamond
Furniture Options
  • Bow Jump Seat
  • Adjustable Height Seat Base with slider/swivel - na raised helm, saltwater pkg II or bolster seat
  • Black Acrylic Table Upgrade w/ Stemware & Drink Holders
  • UltraLux Flip-up Bolster Helm Seat - na raised helm
Helm Options
  • Aft Facing Camera - req. Arch/Tower & Glass Dash
  • Raised helm - na helm smart strg, adj height or 2 tube skin kit
  • Rearview Mirror - Dealer Install
  • Simrad GO5 GPS Chartplotter w/ Sonar
  • Glass Dash-12" & 7" Touch Screens
  • Vessel View Link (Req Simrad)
Optional Packages
  • 8.8" Convenience Package: Includes portable cupholder, upgraded steering wheel, 8.8" QR fenders system, flip-up cleats & kick plates
  • Interior Lighting Package: RGB LED lighted cupholders & RGB LED seat base rope lighting
  • Pilot Assistance Package I (includes adjustable height seat base, Simrad GO5, and midship mooring eyes)
  • Pilot Assistance Package II (includes raised helm, Simrad GO5, and mid-ship mooring eyes)
  • Salt Water Package for 25" tubes- (solid keels, additional transducer bracket, 4 anodes, and decal)
  • Total Lighting Package: Adds to Interior Lighting Package RGB LED underwater & under deck lighting)
Comfort & Convenience Options
  • Battery selector switch, double (incl 2nd battery tray)
  • Fenders, 2 additional 5.5" fenders w/ straps
  • Stainless Steel Refrigerator (incl charger, battery box & charging station)
  • Quick Release Fender System - 8.8" Dia (2 fenders, 2 straps, 4 quick release)
  • Battery on-shore charger, 120V
  • Fenders, 2 Additional 8.8" Dia w/ Straps
  • Pressurized Faucet & Freshwater Tank (requires entertainment center/galley)
  • Changing Room w/ Curtain
  • Fire Extinguisher - Automatic System
  • Stainless Steel Grill - (Fence Mounted, Dealer Install)
  • LED Rope Lighting (at seat base) - na courtesy lights
  • Porta Potti
  • Safety Railing - req SL floorplan & Ski Tow Pylon
  • Upholstered Interior Panels
Interior Color Options
  • Desert Camel (Standard)
  • Almond
  • French Gray
  • Pillow Top - Desert Camel
  • Pillow Top - Almond
  • Pillow Top - French Gray
Performance & Handling Options
  • Mercury® Active Trim
  • Polished Tubes - (Warranty Exclusion)
Engine Options
  • MerCruiser 6.2L 350HP BravoIII (w/ Catalytic Converter)
Stereo & Sound Options
  • JL Diamond Sound System (includes amp, JL stereo, 6 speakers, & sub)
  • 2-Tower Speakers (JL Upgrade Only)
  • JL Audio® Platinum Sound System - 6 speakers with 2 Subwoofers and amps



Max HP
350 hp (260.99 kW)


Deck Length
27 ft. 9 in. (8.46 m)
Deck Width
8 ft. 6 in. (2.59 m)
5580 lb. (2,531.04 kg)
13 persons
Fuel Capacity
81 gal. (306.62 L)
Max Carry Capacity
2935 lb. (1,331.29 kg)


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