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MERCRUISER QSB5.9-425 (RESTRICTED)

Model: 425 HP

Brand: CUMMINS

Product Specification Listing: MERCRUISER QSB5.9-425 (RESTRICTED) Marine Engine

General Information:

Manufacturer: MerCruiser
Model: QSB5.9-425 (Restricted)
Engine Type: Inboard Diesel Engine
Application: Marine

Key Specifications:

Horsepower: 425 HP (317 kW) @ 3000 RPM
Displacement: 5.9 liters (359 cubic inches)
Cylinders: Inline 6
Bore x Stroke: 102 mm x 120 mm (4.02 in x 4.72 in)
Aspiration: Turbocharged and Aftercooled
Fuel System: High-Pressure Common Rail (HPCR)
Emissions Compliance: IMO Tier II, EPA Marine Tier 3, RCD

Performance & Operational Features:

Maximum RPM: 3000
Idle RPM: 650-700
Fuel Type: Diesel
Oil Capacity: 18.9 liters (20 qt)
Cooling System: Heat exchanger or keel cooled available
Fuel Consumption: Variable by load, see detailed fuel curves
Alternator Output: 24V 100A standard

Mechanical and Electrical Features:

Turbocharger: Wastegated Turbocharger
Governor Type: Electronic
Starter Motor: 24V Electric
Instrumentation: Digital displays compatible, gauge packages optional
Noise Level: Low-noise design with advanced dampening technology

Dimensions and Weight:

Length: 1105 mm (43.5 in)
Width: 866 mm (34.1 in)
Height: 1100 mm (43.3 in)
Dry Weight: 590 kg (1300 lbs)

Maintenance Intervals and Serviceability:

Oil Change Interval: 250 hours or annually, whichever comes first
Coolant Change Interval: 2 years or 1000 hours, whichever comes first
Fuel Filter Replacement: Every 250 hours
Air Filter Replacement: Annually, or more frequently in dusty environments

Operational Restrictions (For Restricted Model):

Max Operational Time: Limited to specifications identified in state or regional guidelines
Usage: May require specific documentation or approval for usage in restricted zones (Please check with local regulatory bodies for compliance)

Compatible Accessories:

Propellers: Multiple options available based on vessel specifications
Drive Systems: Various compatible models depending on boat design
Digital Throttle & Shift (DTS): Optional feature for smoother control
VesselView Monitoring System: Optional for real-time engine data and diagnostics

Environmental Considerations:

Emission Control: Advanced exhaust treatment to meet stringent marine environmental regulations
Fuel Efficiency: Optimized for lower fuel consumption and reduced emissions

Warranty:

Standard Warranty: 2 years limited warranty, extendable options available
Service Network: Extensive global service network for support and spare parts

Disclaimer:

Certification Requirements: Ensure compliance with local and international marine certification requirements.
Regulatory Compliance: Subject to regional regulations and restrictions.

This specification sheet provides a comprehensive overview of the MERCRUISER QSB5.9-425 (RESTRICTED) marine engine tailored for restricted operational use. For detailed installation guidelines, maintenance manuals, and additional support, kindly contact authorized MerCruiser dealers or visit the official website.

[Product Type: Engine]