2024 Quicksilver® 409 MPI Bravo 712-8M0185589

Information

2024 Quicksilver® 409 MPI Bravo 712-8M0185589

Premium power for classic sterndrive and inboard cruisers and performance boats

Lightweight, smooth and quiet, the 400hp 409 MPI Bravo engine features a flat-plane crankshaft that generatesserious torque and horsepower, delivering an exciting boost in speed and hole shot when repowering classicsterndrive and inboard boats. Durable and efficient, the 409 engine can provide years of additional fun on the water.

Features may include:

  • Fuel injected for surefire performance in all conditions
  • Compatible with Mercury® SmartCraft® digital gauges, displays and controls
  • CARB & EPA compliant (requires old engine return for repower)
  • Black-X composite valves reduce valve wear and help extend engine life
  • 3-year limited warranty409 MPI Bravo® FWC

Photos

Highlights

  • Plainville, Connecticut
  • 2024
  • Quicksilver®
  • 409 MPI Bravo 712-8M0185589
  • control system: ECM 555 with SmartCraft CAN Capability
  • Available
  • 299.6" (752 mm)
  • 35.8" (909 mm)

Specifications

  • 2024
  • Quicksilver®
  • 409 MPI Bravo
  • 712-8M0185589
  • General
  • control system: ECM 555 with SmartCraft CAN Capability
  • 400hp (298 kW)
  • Full Throttle Range: 5000-5800 RPM
  • 409 cu in (6.7L)
  • Quicksilver V8 iron block and aluminum cylinder heads with Black-X composite valves
  • 4.035" (102 mm)
  • 4.00" (102 mm)
  • 9.4:1 (with ceramic-coated forged pistons) | Rocker Arm: 1.6:1 (shaft-mounted)
  • HVS with fixed-gap spark plugs
  • Closed cooling, long-life 5-year antifreeze, brass seawater pump | FreshWater: Standard
  • High-flow 100 psi oil pump, 140F oil thermostat, and copper oil cooler
  • Single-plane intake with 4-blade throttle body
  • Compatibility: 87 octane minimum / up to 10% ethanol | Delivery System: Gen 2 Cool Fuel (4 bar) | Injection System: Multi-point fuel injection | Accessory Drive System: Serpentine belt
  • Water Drain System: Single-point air-actuated | Exhaust System: Dry joint
  • 1.65:1 | Two: 2.00:1 (O), 2.20:1 (P) | Three: 2.00:1 (O), 2.20:1 (P), 2.43:1 (H)
  • Charging System: 65 amp (917 watt)
  • Rocker Arm Ratio: 1.5:1 Stamped Steel
  • 34.5" (876 mm)
  • 299.6" (752 mm)
  • 35.8" (909 mm)
  • Requirement: 87 Octane (R+M)/2
  • Recommended Engine: SAE 25W-50 NMMA Certified FC-W® full synthetic
  • Cranktrain: Nodular Iron Crankshaft | Audio Warning System: Oil Pressure, Coolant Temperature, Drive Lube, Water Pressure
  • 985 lbs / 447 kg