Mercury 400XXXL 400HP 35in Verado V10 DTS Electric Start in Black Outboard Motor

Description

During grueling offshore tournament canyon runs, the Mercury 400XXXL Verado Outboard Motor platform delivers unmatched transom bite on massive stepped-hull boats. The 5.7-liter V10 unblown engine produces 400 brake horsepower at 6400 RPM. Electronic multi-port fuel injection burns 32.5 gallons per hour at full continuous rating, providing massive displacement leverage across extreme 35-inch center engine transoms.

Low-copper aluminum casting metallurgy prevents galvanic corrosion in severe marine environments. Cast iron cylinder liners provide long-term bore stability under continuous operating stresses. Massive 35-inch shaft housings keep cooling water intakes deep beneath aerated surface waters. Dry weight measures 715 lbs with electro-hydraulic steering. Sump capacity holds 8.5 quarts with 3/8-inch fuel line couplers.

Key Features of Mercury 400XXXL

Offshore tournament teams buy Mercury 400XXXL inboard engine alternatives to install center-mounted engines on stepped-hull transoms requiring an extreme 35-inch shaft. The extra-long midsection ensures the propeller runs in clean undisturbed water beneath stepped keel designs.

• Extreme 35-inch shaft housing positions propellers in clean undisturbed water on stepped hulls
• Integrated electro-hydraulic power steering eliminates external steering cylinders for clean transom rigging configurations
• Advanced MidSection perimeter mounts isolate engine vibration to deliver exceptionally quiet vessel operation
• Mercury 400XXXL SmartCraft digital systems transmit fuel burn rates and engine temperatures to helms
• Naturally aspirated 5.7-liter V10 displacement delivers massive low-end torque without turbo lag
• Digital Throttle and Shift technology eliminates mechanical control cables to provide buttery-smooth shifting
• Top cowl service doors open at the push of a button to permit oil level checks without cowl removal
• High-capacity 150-amp alternators maintain battery reserves while running extensive marine electronics

Combustion Dynamics Thermal Caps

Multi-port injectors pulse fuel into intake ports to generate massive torque across 4000 to 5200 RPM. Wax-pellet thermostats regulate cooling water temperatures between 140°F and 160°F. Seawater cooling circuits dissipate exhaust heat through the propeller hub, maintaining a lean 245 g/kWh fuel efficiency rate across continuous cruising speeds.

Transom Alignment Stringer Clearance

The 35-inch shaft bracket mounts straight to standard outboard transom cutouts meeting ABYC P-1 standards. Clearances demand 28 inches of tilt swing space inside the motor splash well. Stainless steel transom bolt hardware clamps the engine securely to structural transom knees.

Operational Protocols Boundary Rules

Digital helm levers deliver instantaneous throttle response and crisp forward-reverse shifting. Cooling water intake screens must be checked for plastic bags before departures. This extreme-length Verado outboard is not engineered for flat-bottom skiffs, uncooled dry running, or operation exceeding 6400 RPM.

• Inspect lower gearcase cooling water intake screens each shift
• Drain fuel water separator collection bowls every 50 hours
• Change engine crankcase oil and spin-on filters every 100 operating hours

Warranty Statement Shipping Inventory

Recreational customers receive a 3-Year factory warranty covering powerhead and gearcase mechanical assemblies. The heavy export carton holds the 35-inch outboard engine, steering attachment kit, transom mounting bolts, operations manual, and factory documentation.