Description
Product Specification Listing: MerCruiser 7.4L MPI 355HP Marine Engine
General Information
- Product Name: MerCruiser 7.4L MPI 355HP Marine Engine
- Manufacturer: Mercury Marine
- Model Number: 7.4L MPI
- Engine Type: Inboard
- Horsepower: 355 HP
Engine Specifications
- Engine Configuration: V8
- Displacement: 454 cubic inches (7.4 liters)
- Aspiration: Naturally Aspirated
- Fuel Delivery System: Multi-Port Fuel Injection (MPI)
- Max RPM: Approximately 4,400 RPM - 4,800 RPM
Dimensions and Weight
- Overall Length: [Typically around 39 inches, specifics may vary per installation]
- Overall Width: [Typically around 30 inches, specifics may vary per installation]
- Overall Height: [Typically around 24 inches, specifics may vary per installation]
- Dry Weight: Approximately 1,080 lbs (490 kg)
Fuel and Lubrication
- Fuel Type: Unleaded Gasoline (minimum 87 octane, 90 recommended for optimal performance)
- Fuel System: EFI (Electronic Fuel Injection)
- Fuel Tank Capacity: [Depends on the boat's fuel tank specifications]
- Oil Capacity: 8.5 quarts (approximately 8 liters)
Cooling System
- Cooling Type: Closed cooling system with heat exchanger (Raw water cooling also available)
- Recommended Coolant: Ethylene glycol-based antifreeze
Exhaust System
- Exhaust Configuration: Wet exhaust with through-transom or through-hull options
Electrical System
- Ignition System: Digital Thunderbolt V Ignition (DTVI)
- Charging System: 65-amp alternator
- Battery Requirements: 12-volt marine starting battery (minimum CCA as per boat requirements)
Performance
- Torque: Approximately 470 lb-ft @ 3,200 RPM
- Idle Speed: 600 RPM - 700 RPM
Compliance and Warranty
- EPA Emissions Compliance: Certified (model year compliance specific)
- CARB Emissions Compliance: [Depending on the specific model year]
- Warranty: Limited 3-year factory warranty (conditions apply)
Features and Benefits
- Multi-Port Fuel Injection: Ensures optimal fuel efficiency and reliable starts
- Closed Cooling System: Protects the engine from corrosion and extends life
- Digital Throttle & Shift (DTS): Offers smoother and more precise control (if equipped)
- Maintenance-Free Valve Train: Reduces routine maintenance
Installation and Servicing
- Mounting Type: Standard inboard mounts
- Service Interval: Regular maintenance as per manufacturer's recommendations (specific intervals outlined in the owner's manual)
- Service Points: Accessible oil filter, coolant reservoir, and other key components
Optional Accessories
- Freshwater Flushing Kits
- Engine Alarm System
- Upgraded Propellers
- Trim Indicators
Package Contents
- Engine Assembly
- Operator’s Manual
- Warranty Registration Card
- Pre-Installation Checklist
Notes
- Shipping Weight and Dimensions Standard shipping dimensions and weights vary by distributor and shipping method.
- Installation Considerations: Ensure proper alignment with the boat's existing infrastructure.
- Consult Manufacturer's Documentation: For detailed installation, maintenance, and operational instructions.
Note: Always verify with the manufacturer's documentation for the most accurate and specific information and recommendations. Specifications are subject to change by the manufacturer without prior notice.
