Monday, January 27, 2025

MERCRUISER 454 MAG MPI HORIZON 415.5HP

Model: 454 MAG MPI HORIZON

Brand: MERCRUISER

Product Specification Listing: Mercruiser 454 Mag MPI Horizon 415.5HP Marine Engine


General Information:

  • Product Name: Mercruiser 454 Mag MPI Horizon
  • Model Number: 454 MAG MPI Horizon
  • Horsepower: 415.5 HP

Engine Specifications:

  • Engine Type: V8
  • Displacement: 454 cubic inches (7.4 liters)
  • Bore and Stroke: 4.25 x 4.00 in (108 x 102 mm)
  • Compression Ratio: 8.75:1
  • Induction System: Multi-port fuel injection (MPI)
  • Cooling System: Closed cooling system

Performance:

  • Max RPM Range: 4600-5000 RPM
  • Horsepower: 415.5 HP at 4600-5000 RPM
  • Peak Torque: Approximately 500 lb-ft at 3500 RPM

Fuel System and Ignition:

  • Fuel Type: Unleaded gasoline
  • Fuel Delivery: Sequential multi-port fuel injection (MPI)
  • Ignition System: Digital electronic ignition (D.E.I.)
  • Recommended Fuel Octane: 87 (minimum) or 89 (recommended)

Electrical:

  • Alternator: 65-amp, belt-driven
  • Starter: 12-volt, electric starter

Dimensions and Weight:

  • Length: 40.75 in (103.5 cm)
  • Width: 32 in (81 cm)
  • Height: 21.5 in (54.6 cm)
  • Weight: Approx. 1190 lbs (540 kg)

Exhaust System:

  • Exhaust Type: Through transom
  • Manifolds: Cast iron with aluminum risers

Lubrication:

  • Oil Capacity: 7 Quarts (6.6 Liters)
  • Oil Type: SAE 25W-40 Mercruiser Synthetic Blend

Key Features:

  • Corrosion Resistance: MerCathode® for superior corrosion protection
  • Engine Monitoring: SmartCraft® Engine Guardian
  • Drive Compatibility: Compatible with Bravo One, Bravo Two, and Bravo Three drive systems
  • Warranty: Typically comes with a limited warranty; check with supplier for details

Applications:

  • Recommended Usage: Suitable for a variety of recreational and performance boating applications including speedboats, larger runabouts, cruisers, and sport boats.

Additional Information:

  • Emissions Compliance: Meets applicable marine emission standards as per regulatory requirements.
  • Service & Maintenance: Regular maintenance intervals recommended, with servicing from certified MerCruiser technicians advisable.

Important Note:

Ensure compatibility with your boat's existing systems and consult with a certified marine technician for proper installation and optimal performance. Always refer to the official MerCruiser operation and maintenance manual for detailed instructions and safety information.

[Product Type: Engine]

Product Specifications

Power 415.5 HP (309.80kw)

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