MERCRUISER QSD4.2 - 320 HP
Model: 320 HPBrand: CUMMINS
Sure, here is a detailed product specification listing for the MerCruiser QSD4.2 - 320 HP marine engine:
MerCruiser QSD4.2 - 320 HP Marine Engine
Product Overview: The MerCruiser QSD4.2 is a high-performance marine engine designed for marine applications requiring reliability, power, and efficiency. Below are the detailed specifications of this robust engine.
General Specifications:
- Model: QSD4.2
- Horsepower: 320 HP (238 kW)
- Engine Type: Inboard
- Configuration: 4-stroke, 24-valve, V6
- Displacement: 4.2 liters (4200 cc)
- Aspiration: Turbocharged and Aftercooled
- Fuel Type: Diesel
- Emission Compliance: EPA Tier 3, EU RCD
Performance:
- Max RPM (Revolutions Per Minute): 3800 RPM
- Idle RPM: 800-900 RPM
- Fuel Consumption:
- Cruise: Approx 21-25 gallons per hour (GPH) at 3000 RPM
- WOT (Wide Open Throttle): Approx 30-35 GPH at 3800 RPM
Dimensions and Weight:
- Length: 38 inches (965 mm)
- Width: 34 inches (864 mm)
- Height: 32 inches (813 mm)
- Weight (Dry): 1,200 lbs (544 kg)
Cooling System:
- Type: Closed cooling with heat exchanger
- Water Pump: Sea water pump with impeller
- Thermostat: Dual thermostat system for optimized temperature control
Electrical and Control System:
- Alternator: 12V, 150 Amp
- Starter Motor: 12V electric
- Battery Requirements:
- Qty: 2
- Type: Marine deep cycle
- Voltage: 12V
- CCA (Cold Cranking Amps): 1000
Fuel System:
- Injection System: High-pressure common rail (HPCR)
- Filtration System: Dual-stage fuel filtration with water separator
- Fuel Supply: Electric lift pump
Exhaust System:
- Exhaust Manifold: Cast iron, water-cooled
- Exhaust Outlet: Wet exhaust with mixer elbow
Drive Options:
- Compatible Drives: Bravo I, Bravo II, Bravo III X
- Gear Ratios: Varies by drive, typically 1.50:1 to 2.20:1
Additional Features:
- Diagnostics: MerCathode system for corrosion protection, SmartCraft compatible
- Warranty: Standard 2 years limited warranty, with optional extended protection plans available
- Compliance: Meets ISO, EPA, and CE certifications
Accessories (Optional):
- Digital throttle and shift controls
- Engine monitoring system
- Dual station controls
- Joystick piloting
Recommended Applications:
- Leisure boats
- Small commercial vessels
- Sportfishing boats
- Cruisers
- Sailboats
Notes:
- Regular maintenance and servicing recommended at intervals specified in the owner's manual.
- Installation and alignment should be performed by a certified MerCruiser technician for optimal performance.
Contact Information for Purchase:
- Authorized Dealers: Available worldwide – consult the MerCruiser website or contact local marine supply stores.
- Customer Support: For technical support, parts, and servicing, refer to the official MerCruiser website or authorized service centers.
This specification aims to provide a comprehensive overview of the MerCruiser QSD4.2 - 320 HP marine engine's features and capabilities. Always refer to the official user manual and MerCruiser documentation for the most accurate and detailed information.
Product Specifications
Strokein
3.94 in
Stroke
100 mm
(3.94in)
Rated Speed
3800 r/min
Powerkw
235 kW
Power
320 HP
(238.59kw)
Displacementin3
254 in3
Displacement
4.2 cm3
(0.00L, 0.26in3)
Cylinders Arrangement/Number
6
Borein
3.70 in
Bore
94 mm
(3.70in)