Mercury 400HP 400CXL Verado V10 Counter Rotation Outboard – 25″ Shaft
The 400-horsepower Mercury 400CXL Verado V10 combines counter-rotation operation with a 25-inch shaft. Its configuration supports compatible twin-engine boats, while balanced propeller rotation helps improve handling and the shaft length maintains effective alignment beneath the hull.
Description
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Mercury 400HP 400CXL Verado V10 Counter Rotation Specs
| Brand | Mercury Marine |
| Full Model Code / Part Number | 400CXL Verado V10 (Counter Rotation / 25" Shaft) |
| Country of Origin | USA |
| Engine Type & Configuration | 4-Stroke 64° V10 (DOHC with 4-Valves per Cylinder) |
| Horsepower Output (HP / kW) | 400 HP (298 kW) |
| Displacement (cc / cu in) | 5700 cc (349 cu in) |
| Bore x Stroke (mm / in) | 90.0 x 89.0 mm (3.54 x 3.50 in) |
| Maximum RPM Range (Full Throttle Operating Range) | 5800 - 6400 RPM |
| Fuel Induction System | Electronic Fuel Injection (EFI) Computer Controlled with Sequential Multi-Port |
| Ignition System | SmartCraft ECM 0d Digital Inductive |
| Starting System | Electric Start with SmartStart Push Button |
| Steering System | Electro-Hydraulic Power Steering (Integrated) |
| Trim & Tilt System | Smart Craft Power Trim and Tilt |
| Gear Ratio & Shift Mechanism | 2.08:1 (Counter Rotation TorqueMaster / Forward - Neutral - Reverse) |
| Exhaust System | Through Propeller |
| Recommended Transom Shaft Length | XL: 25 inches |
| Alternator / Charging Output (Amps / Watts) | 150 Amp (Idle Charge Battery Management System) / 1800 Watts |
| Recommended Fuel Grade & Oil Type | Regular Unleaded (Min. 87 Octane) / Mercury 4-Stroke Outboard Oil NMMA FC-W 25W-40 |
| Dry Weight (kg / lbs) | 316 kg / 695 lbs |
| Standard Warranty | 3 Years Limited Recreational Warranty |
Common Question of Mercury 400CXL Verado
Is the 400CXL counter rotating?
Yes. The Mercury 400CXL Verado V10 is specified as a counter-rotation outboard with a 25-inch shaft. Its counter rotating lower unit is intended for compatible paired-engine applications requiring opposite rotation. Confirm propeller specification, engine pairing, controls, steering equipment, battery, wiring, and boat compatibility before installation.
What transom fits its shaft?
A 25-inch transom is the intended match for this CXL Verado configuration. Measure the hull carefully before purchase because incorrect shaft length can affect cooling-water pickup, gearcase clearance, propeller immersion, steering response, and twin-engine balance. Correct measurement supports this ready to bolt marine installation.
Does it use electronic fuel injection?
Yes. The Mercury Verado V10 uses an electronic fuel injection system for controlled fuel delivery during starting, acceleration, and cruising. Verify mounting height, cooling-water flow, propeller requirements, electronic controls, gauges, battery capacity, steering equipment, and complete rigging before installing this high performance outboard motor.
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