Compare

MERCRUISER 7.4L MPI 355HP

Model: 7.4L MPI

Brand: MERCRUISER

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.

[Product Type: Engine]