Outboard motor · 400 HPYamaha XFL400ES
Electronic control lever Drive-by-Wire (DEC)Steering: integrated electric (DES)Helm Master EX Level 2–4 (electric steering DES)Installation and rigging at the GRAND BOATS Poland service centre in Łężyce. Sold in cooperation with an authorised Yamaha dealer; manufacturer warranty 3 + 2 years at an authorised Yamaha service.
Yamaha XFL400ES — 400 HP
Yamaha XFL400ES is a four-stroke outboard motor rated at 400 HP (294,2 kW at the propeller shaft). Engine: 32-zaworowy, DOHC z VCT, 60° V8 (XTO Offshore), displacement 5559 cm³, wtrysk paliwa. Dry weight: 447–468 kg.
A motor with integrated Yamaha DES digital electric steering: no pump or hydraulic hoses in the boat, a lighter installation, precise handling and ready for Helm Master EX with a joystick. Throttle and shift are digital (Drive-by-Wire). The model has electric start and power trim and tilt (PTT) — the motor angle is set with a button, even while underway.
Shaft length E (35″ / 889 mm). The shaft is matched to the boat’s transom height so that the anti-cavitation plate runs just below the water surface. Transom height for this shaft according to Yamaha: 894 mm.
The XTO Offshore series are Yamaha’s flagship V8 outboards for large offshore boats: huge power, thrust and a strong alternator for onboard electronics. A counter-rotating motor is paired with a standard-rotation one — in a twin installation it balances the torque and makes the boat easier to handle.
Fuel consumption at full power according to Yamaha: 130,6 L/h @6000 obr/min. At the GRAND BOATS Poland service centre in Łężyce near Gdynia we install the engine, do the rigging and choose the propeller. The engine is supplied in cooperation with an authorised Yamaha dealer; the manufacturer warranty (3 + 2 years) is carried out by an authorised Yamaha service.
Yamaha XFL400ES
| Maximum output (at propeller shaft) | 400 KM (294,2 kW) |
|---|---|
| Full-throttle range | 5000–6000 rpm |
| Idle speed | 650–750 rpm |
| Fuel consumption (reference data) | 130.6 L/h @6000 rpm |
| Engine type | 4-stroke, 32-valve, DOHC with VCT, 60° V8 (XTO Offshore) |
| Displacement | 5559 cm³ |
| Bore × stroke | 96,0 × 96,0 mm |
| Compression ratio | 12,3:1 |
| Fuel system | Fuel injection |
| Lubrication | Wet sump |
| Engine oil capacity | 7.8 L / 7.5 L (with / without filter change) |
| Ignition | TCI |
| Spark plug | ILMAR7H-9 |
| Alternator | 104 A (battery charging: 88 A) |
| Trim | PTT: stepless |
| Gear ratio | 1,79 (25/14) |
| Gear shift | F-N-R (digital, DEC) |
| Steering | Digital electric steering (DES) |
| Propeller rotation | Left (counter-rotating) |
| Shaft lengths in the family | X, U, E |
| Overall height (E shaft) | 2313 mm |
| Transom height (E shaft) | 894 mm |
| Beam | 652 mm |
| Weight (dry) | 447–468 kg |
| Steering angle | 31° each way |
Source: Yamaha Product Information Guide 2026 (F400A family). Fuel consumption — manufacturer’s reference data.