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Express 340 Main Specifications
Beam Amidships
11'7" (3.53 m)
Center Line Length w/o Engines
33'6" (10.21 m)
Bridge Clearance
9'11" (3.02 m)
Cockpit Depth
29" (0.74 m)
Hull Draft
27" (0.69 m)
Transom Deadrise
20 degrees (SeaV2® progression)
Maximum HP
1050 (783 kW)
Fuel Capacity - Standard
340 gal. (1287 l)
Weight w/o Engines
TBD
Express 340 Features & Options
Select camera icons where available to view feature photos
Denotes feature as trademarked, exclusive, patented, or patent pending
Safety
Automatic bilge pumps (2) (total 3000 GPH) (11,356 LPH)
Basic flotation
Bow rail - 316 grade stainless steel
Composite stringer system & transom - water impervious
Fire extinguisher port
Nonskid fiberglass liner
Self-bailing cockpit w/cockpit drains (6)
Stainless steel through-hull fittings
Yamaha Siren Marine Connected Boat® Monitoring System
Cabin
Accessory outlet - 5V USBs (2) (1 for V-berth & 1 for aft berth)
Air conditioning - 18,000 BTU
Berth - aft double berth w/memory foam topper cushions
Berth - forward vee berth w/memory foam topper cushion & adjustable backrest
Carbon monoxide detector
Composite teak & holly sole
Door - lockable, sliding acrylic cabin door
Forward hatch - low profile acrylic hatch w/retractable screen & shade
Galley - port galley w/sink, Dekton® countertop & backsplash, and indirect lighting
Head - enclosed ventilated head area w/lighting, Dekton® countertop, sink, shower w/fold-down seat, storage cabinet & VacuFlush® marine head w/freshwater supply, 10-gallon (38 l) holding tank, overboard discharge & deck pump out
Lighting - cabin nightlight under step up to V-berth
Lighting - indirect lighting throughout
Lighting - reading lamps (2) (1 for V-berth & 1 for aft berth)
Lighting - skylight
Microwave oven - 120V (60Hz)
Refrigerator - stainless steel
Storage - aft berth storage behind backrest
Storage - bulk floor storage
Storage - handcrafted cabinetry w/fluted inlays
Storage - under forward vee berth compartments
Stove - electric glass top
Table - oak dinette w/adjustable stainless steel base
TV - 24" LED flat screen w/HDMI inlet
Water heater - 6-gallon (22.7 l), 120V
Water tank - 45-gallon (170.3 l) freshwater
Cockpit & Deck
100% hand laid SeaV² hull & deck
Accessory outlet - 5V duplex USB port & starboard
Accessory outlet - 12V
Anchor windlass w/remote switches at helm & windlass
Batteries (4) w/battery select switches (2) & charger system (1)
Bow thruster
Cleats - flush mount (pull up)
Cockpit bolsters
Cockpit freshwater shower w/hot & cold mixer (recessed)
Cockpit lights - blue LED
Cockpit side doors - port & starboard w/boarding ladder
Companion grab rail
Compass
Cutting board
Deck hardware - 316 grade stainless steel through-bolted
Dockside power w/galvanic isolator
Dockside water inlet
Drink holders - stainless steel (13)
Engine flush system w/hose attachment aft (one per engine)
Factory engine pre-rigging
Fender cleats - Phender Pro™ quick-release
Fish box - 166-qt. (157 l) aft insulated fish box w/lights (2) & ob drain
Fish box - 87-qt. (82 l) aft insulated fish box w/recessed faucet & ob drain
Flush mount electronics area
Footrest - helm
Fuel capacity - 340 gal. (1287 l) (port & starboard fills)
Generator - 8 kW diesel, 13-gallon (49.2 l) fuel capacity w/water inlet shutoff valve
Hardtop - AV²® enclosure w/painted aluminum frame, hatch w/screen & shade, electromechanically operated center vent, storage net, LED spreader lights, bi-colored (blue and white) LED recessed lights (6), horizontal hanging rod holders (4), side mounted rod holders (4), and Clear2Sea™ side & drop curtains
Hydraulic trim tabs w/indicator & retractor
Integrated outboard mounting system w/swim platform & ladder
International lighting
Livewell - 30-gallon (114 l) starboard insulated raw water livewell w/light, full column distribution inlet & ob drain (1100 GPH pump) (4164 LPH)
Phone charger (wireless) - helm mounted
Rod holders - cockpit (4)
Rubrail - high density PVC w/stainless steel insert
Seating - aft facing mezzanine seat w/flip-up bolster, fold-down Dekton® countertop, pull out footrest, tackle storage, drawer storage, and bulk storage w/USB and 120V outlets
Seating - electromechanically adjustable helm seat w/flip-up bolster and fold down armrests
Seating - foldaway aft bench seat w/cushion
Seating - wraparound companion bench seat w/electrically adjustable table
Steering - Helm Master® EX w/Full Maneuverability
Steering wheel - 316 grade stainless steel w/knob
Stereo system w/waterproof touch screen display, AM/FM tuner & Wi-Fi & Bluetooth® connectivity; speakers w/LED lights - hardtop (4), cabin (2)
Stern eyes - 316 grade stainless steel
Storage - aft starboard tackle box storage
Storage - forward anchor locker w/rode storage and pressurized raw water washdown
Storage - helm storage drawer
Storage - port drawer w/5 gal. bucket
SureShade® electrically retractable cockpit shade w/Sunbrella® canvas (oyster)
Washdown - freshwater
Washdown - pressurized raw water w/hose
Wet bar w/Dekton® countertop, molded fiberglass sink, and stainless steel storage drawers (3) (starboard)
Windshield - full protection glass w/electromechanically operated center vent
Windshield wipers - pantograph w//washer (2)
Options
Air conditioning - 18,000 BTU at helm
CE certification package (European Conformity)
Freezer/refrigerator unit w/digitally controlled thermostat for aft fish box w/ob drain
Grill - 1300W (in lieu of starboard cockpit sink)
Hardtop color - underside of fiberglass hardtop (requires matching gelcoat hull)
Hull color - Celestial Blue, Coastal Fog, Ocean Mist, or Sage Gray gelcoat
International AC electrical conversion - 220V (50Hz)
Lighting - underwater blue LED (4)
Outrigger kit - 18-ft. (5.5 m) crank hardtop mounted stainless steel outriggers w/carbon fiber poles
Refrigerator - stainless steel (replaces wet bar drawers)
Seating - forward deck sun cushions w/diamond quilting
Stabilizer - Seakeeper® 3 gyroscopic stabilization system
Express 340 Performance Data
XTO Offshore® 450
Twin
CLASSIC WHITE
Standard
350 Yamaha Four-Stroke
Triple
Top Speed: 57.2 MPH @ 5950 RPM
Optimum Cruise: 30.4 MPH @ 3500 RPM
GPH at Optimum Cruise: 27.2
MPG at Optimum Cruise: 1.12
CLASSIC WHITE
Standard
XTO Offshore® 450
Twin
Engine Size
5.6L
Test Date
Prop Size
Weight as Tested
)
Hardtop
Yes
Bow Pulpit
No
Bottom Paint
No
Optimum Cruise
| RPM | MPH | GPH | MPG |
|---|---|---|---|
350 Yamaha Four-Stroke
Triple
Engine Size
4.3L
Test Date
8/19/2025
Prop Size
15 x 20 SWS II SDS
Weight as Tested
17485 lb. (including persons, fuel, water, gear, engines & accessories))
Hardtop
Yes
Bow Pulpit
No
Bottom Paint
No
Optimum Cruise
30.4 MPH @ 3500 RPM
| RPM | MPH | GPH | MPG |
|---|---|---|---|
| 1000 | 6.3 | 3.8 | 1.66 |
| 1500 | 8.6 | 6.3 | 1.37 |
| 2000 | 10.3 | 10.5 | 0.98 |
| 2500 | 12.4 | 17.6 | 0.70 |
| 3000 | 17.7 | 23.2 | 0.76 |
| 3500 | 30.4 | 27.2 | 1.12 |
| 4000 | 37.1 | 35.7 | 1.04 |
| 4500 | 42.6 | 44.0 | 0.97 |
| 5000 | 48.1 | 58.2 | 0.83 |
| 5500 | 53.5 | 81.9 | 0.65 |
| 5950 | 57.2 | 91.5 | 0.63 |
XTO Offshore® 450
Twin
Engine Size
5.6L
Test Date
Prop Size
Weight as Tested
Hardtop
Yes
Bow Pulpit
No
Bottom Paint
No
Optimum Cruise
| RPM | MPH | GPH | MPG |
|---|---|---|---|
350 Yamaha Four-Stroke
Triple
Engine Size
4.3L
Test Date
8/19/2025
Prop Size
15 x 20 SWS II SDS
Weight as Tested
17485 lb. (including persons, fuel, water, gear, engines & accessories)
Hardtop
Yes
Bow Pulpit
No
Bottom Paint
No
Optimum Cruise
30.4 MPH @ 3500 RPM
| RPM | MPH | GPH | MPG |
|---|---|---|---|
| 1000 | 6.3 | 3.8 | 1.66 |
| 1500 | 8.6 | 6.3 | 1.37 |
| 2000 | 10.3 | 10.5 | 0.98 |
| 2500 | 12.4 | 17.6 | 0.70 |
| 3000 | 17.7 | 23.2 | 0.76 |
| 3500 | 30.4 | 27.2 | 1.12 |
| 4000 | 37.1 | 35.7 | 1.04 |
| 4500 | 42.6 | 44.0 | 0.97 |
| 5000 | 48.1 | 58.2 | 0.83 |
| 5500 | 53.5 | 81.9 | 0.65 |
| 5950 | 57.2 | 91.5 | 0.63 |
Express 340 Overhead
Select the hotspots below to learn more about the Express 340 features.
- Color
- Options
- Power
- Submit
Choose your hull color
Classic Grady White
GELCOAT StandardCelestial Blue
GELCOAT OptionalCoastal Fog
GELCOAT OptionalOcean Mist
GELCOAT OptionalSage Gray
GELCOAT OptionalCustomize with options
Options
Lighting - underwater blue LED (4)
Grill - 1300W (in lieu of starboard cockpit sink)
Hardtop color - underside of fiberglass hardtop (requires matching gelcoat hull)
Outrigger kit - 18-ft. (5.5 m) crank hardtop mounted stainless steel outriggers w/carbon fiber poles
Stabilizer - Seakeeper® 3 gyroscopic stabilization system
CE certification package (European Conformity)
International AC electrical conversion - 220V (50Hz)
Seating - forward deck sun cushions w/diamond quilting
Air conditioning - 18,000 BTU at helm
Refrigerator - stainless steel (replaces wet bar drawers)
Freezer/refrigerator unit w/digitally controlled thermostat for aft fish box w/ob drain
Hull color - Celestial Blue, Coastal Fog, Ocean Mist, or Sage Gray gelcoat
Select your power.
Please note: one or more engine packages below are not compatible with options selected in the previous step. To select an engine package that is currently disabled, please go back to the Options step and deselect any options that are incompatible.
XTO Offshore® 450
Twin
CLASSIC WHITE
Standard
This engine package is not compatible with the following option(s) selected in the previous step:
To select this engine package, please go back to the Options step and deselect any options that are incompatible.
350 Yamaha Four-Stroke
Triple
Top Speed: 57.2 MPH @ 5950 RPM
Optimum Cruise: 30.4 MPH @ 3500 RPM
GPH at Optimum Cruise: 27.2
MPG at Optimum Cruise: 1.12
CLASSIC WHITE
Standard
This engine package is not compatible with the following option(s) selected in the previous step:
To select this engine package, please go back to the Options step and deselect any options that are incompatible.