Mercury 400HP 400CL Verado V10 Counter Rotation Outboard – 20″ Shaft
Featuring 400 horsepower, counter-rotation operation, and a 20-inch shaft, the Mercury 400CL Verado V10 supports compatible twin-engine installations. Counter-rotation helps balance propulsion forces, while the shaft dimension suits lower-transom configurations and supports proper propeller placement.
Description
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Mercury 400HP 400CL Verado V10 Counter Rotation Specs
| Brand | Mercury Marine |
| Full Model Code / Part Number | 400CL Verado V10 (Counter Rotation / 20" 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 | L: 20 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 400CL Verado
Is the 400CL counter rotating?
Yes. The Mercury 400CL Verado V10 is specified as a counter-rotation outboard with a 20-inch shaft. Its counter rotating lower unit is intended for compatible paired-engine applications. Verify engine pairing, propeller specification, controls, steering, battery, wiring, and boat compatibility before installing this high performance outboard motor.
Does it use fuel injection?
Yes. The Mercury 400CL Verado V10 uses an electronic fuel injection system for controlled fuel delivery across operating conditions. Counter rotation and fuel injection are separate specifications. Verify mounting height, cooling-water flow, propeller requirements, electronic controls, gauges, battery capacity, and complete rigging before installation.
What transom fits its shaft?
A 20-inch transom is the intended match for this CL Verado configuration. Measure the hull before purchase because incorrect shaft length can affect cooling-water pickup, gearcase depth, propeller immersion, steering response, and paired-engine balance. Accurate measurement supports this ready to bolt marine installation.
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