Mazda Mazda CX-9 2007-2015 3.7L V6 Engine Specifications
Explore the detailed technical specifications of the 3.7L V6 engine in the 2007-2015 Mazda CX-9. Learn about horsepower, torque, fuel system, and more for maintenance, repair, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the 3.7L V6 engine used in the 2007-2015 Mazda CX-9. It is designed to assist users in understanding the engine's features, performance, and maintenance requirements. The content is organized into sections for easy navigation, with a quick reference guide for key specifications. Use the search and navigation instructions to find specific details efficiently.
How to Use
Use the search functionality to locate specific terms or topics within the document. Enter keywords related to the engine's specifications, performance, or maintenance for quick results.
Navigate through the document using the section titles and subsections. Each section is organized by topic, with detailed points listed under relevant subsections for easy access to information.
Key Specifications
Displacement
3.7 liters
Horsepower
273 hp
Torque
270 lb-ft
Fuel Economy
18 mpg combined
Compression Ratio
10.3:1
Available Specifications
Engine Specifications
This section covers the core specifications of the 3.7L V6 engine, including its displacement, configuration, and key technical details. It provides a comprehensive overview of the engine's design and capabilities.
Engine Specifications
This section covers the core specifications of the 3.7L V6 engine, including its displacement, configuration, and key technical details. It provides a comprehensive overview of the engine's design and capabilities.
General Specifications
- Displacement: 3.7 liters
- Configuration: V6
- Cylinder arrangement: 60-degree V-angle
- Valvetrain: DOHC with 24 valves
- Bore x Stroke: 95.5 mm x 86.0 mm
- Compression ratio: 10.3:1
Performance Specifications
- Horsepower: 273 hp @ 6250 rpm
- Torque: 270 lb-ft @ 4250 rpm
- Fuel system: Sequential multi-port fuel injection
- Fuel type: Regular unleaded
- Redline: 6500 rpm
Performance and Efficiency
This section focuses on the engine's performance characteristics, including power output, torque, and fuel efficiency. It also highlights the engine's responsiveness and driving dynamics.
Performance and Efficiency
This section focuses on the engine's performance characteristics, including power output, torque, and fuel efficiency. It also highlights the engine's responsiveness and driving dynamics.
Power and Torque
- Peak horsepower achieved at 6250 rpm
- Maximum torque available at 4250 rpm
- Smooth power delivery across the rev range
- Optimized for mid-range performance
Fuel Efficiency
- EPA-estimated city mileage: 16 mpg
- EPA-estimated highway mileage: 22 mpg
- Combined fuel economy: 18 mpg
- Eco-friendly design with reduced emissions
Maintenance and Durability
This section provides information on the engine's maintenance requirements and durability features. It includes details on service intervals, common maintenance tasks, and the engine's long-term reliability.
Maintenance and Durability
This section provides information on the engine's maintenance requirements and durability features. It includes details on service intervals, common maintenance tasks, and the engine's long-term reliability.
Maintenance Schedule
- Oil change interval: Every 7,500 miles or 6 months
- Spark plug replacement: Every 60,000 miles
- Timing chain design for reduced maintenance
- Coolant flush recommended every 100,000 miles
Durability Features
- Aluminum block and heads for reduced weight
- Forged steel crankshaft for strength
- Hydraulic lash adjusters for quiet operation
- Durable piston rings for extended engine life
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Engine Specifications
Overview
- Type
- Naturally aspirated V6
- Configuration
- 60-degree V6
- Platform
- MZI series
- Material
- Aluminum block and heads
- Location
- Front-engine, transverse
Dimensions
- Length
- 24.8 inches (630 mm)
- Width
- 28.3 inches (720 mm)
- Height
- 26.4 inches (670 mm)
- Displacement
- 226.1 cubic inches (3700 cc)
- Bore
- 3.7 inches (95.5 mm)
- Stroke
- 3.39 inches (86 mm)
- Weight
- 375 lbs (170 kg)
Materials
- Block
- Aluminum alloy
- Cylinder Heads
- Aluminum alloy
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Fuel System
-
- Sequential multi-port fuel injection
- Electronic throttle control
- Variable intake manifold
- Ignition System
-
- Coil-on-plug ignition
- Direct spark ignition
- Knock control system
- Cooling System
-
- High-capacity radiator
- Electric cooling fan
- Thermostatically controlled
- Lubrication System
-
- Full-pressure lubrication
- Oil cooler
- High-capacity oil pump
- Emissions Control
-
- Catalytic converters
- EGR system
- OBD-II compliance
Safety Features
- Engine Protection
-
- Low oil pressure warning
- Overheat warning
- Fail-safe cooling
- Electronic Controls
-
- Traction control system
- Stability control system
- Anti-lock braking system
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Hydraulic engine mounts
- Tuned intake system
- Vibration Control
-
- Balanced crankshaft
- Dual-mass flywheel
- Hydraulic lash adjusters
Accessories
- Belts And Pulleys
-
- Serpentine belt
- Tensioner pulley
- Idler pulley
- Filters
-
- Oil filter
- Air filter
- Fuel filter
- Sensors
-
- Crankshaft position sensor
- Camshaft position sensor
- Knock sensor
Maintenance
- Service interval
- Every 7,500 miles or 6 months
- Service Items
-
- Oil and filter change
- Spark plug replacement
- Air filter inspection
- Coolant level check
- Belt tension check
- Maintenance Notes
- Use synthetic 5W-20 oil for optimal performance
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain Warranty
- Miles: 60,000Years: 5Coverage: Engine and transmission
- Corrosion Warranty
- Miles: UnlimitedYears: 5Coverage: Perforation only
- Emissions Warranty
- Miles: 80,000Years: 8Coverage: Federal emissions components
Production Details
- Manufacturer
- Mazda Motor Corporation
- Manufacturing Process
-
- Casting of aluminum block and heads
- CNC machining of critical components
- Precision assembly
- Quality Control
- inspection: 100% component inspectionTesting: Dyno testing of every engineStandards: ISO 9001 certified
- Sustainability Practices
-
- Recycling of aluminum scrap
- Use of low-VOC paints
- Energy-efficient manufacturing
- Production Metrics
- Units Per Year: Approximately 50,000Production Sites: Hiroshima, Japan
Service Information for 3.7l v6 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect air filter
- Check coolant level
- Inspect belts and hoses
- Check battery condition
Use only Mazda-approved synthetic oil
- Replace spark plugs
- Inspect fuel system
- Check ignition system
- Inspect exhaust system
- Test emissions system
Replace spark plugs with OEM parts
- Replace timing belt
- Inspect water pump
- Replace coolant
- Inspect engine mounts
- Check valve clearance
Timing belt replacement is critical to prevent engine damage
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.7L V6 engine compatible with other Mazda models?
Is the 3.7L V6 engine compatible with other Mazda models?
The 3.7L V6 engine was specifically designed for the 2007-2015 Mazda CX-9 and is not directly compatible with other Mazda models due to differences in mounting points, electronics, and transmission configurations. However, some components, such as sensors or accessories, may be interchangeable with other Mazda vehicles. Always verify compatibility using Mazda's official parts catalog or consult a certified technician before attempting any cross-model installations.
Q2 What are the maintenance requirements for the 3.7L V6 engine?
What are the maintenance requirements for the 3.7L V6 engine?
The 3.7L V6 engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 5,000-7,500 miles, air filter replacement every 15,000-30,000 miles, and spark plug replacement every 60,000-100,000 miles. Additionally, inspect the timing belt, coolant, and transmission fluid at recommended intervals. Adhering to the maintenance schedule outlined in the owner's manual is crucial for longevity and reliability.
Q3 How do I replace the 3.7L V6 engine in a Mazda CX-9?
How do I replace the 3.7L V6 engine in a Mazda CX-9?
Replacing the 3.7L V6 engine involves several steps: disconnect the battery, drain fluids, remove the intake manifold, exhaust system, and accessories, and detach the transmission. Use an engine hoist to lift the engine out of the vehicle. Installation is the reverse process, ensuring all components are properly torqued and aligned. Refer to the Mazda CX-9 service manual for detailed instructions and torque specifications. Professional assistance is recommended for this complex procedure.
Q4 What should I do if my 3.7L V6 engine is misfiring?
What should I do if my 3.7L V6 engine is misfiring?
Misfiring in the 3.7L V6 engine can result from faulty spark plugs, ignition coils, or fuel injectors. Begin by scanning the engine control module (ECM) for error codes. Inspect and replace spark plugs or ignition coils if necessary. Check fuel injectors for clogs or malfunctions. If the issue persists, examine the engine's compression and vacuum systems. Regular maintenance and timely replacement of worn components can prevent misfires.
Q5 How can I optimize the performance of my 3.7L V6 engine?
How can I optimize the performance of my 3.7L V6 engine?
To optimize the 3.7L V6 engine's performance, use high-quality synthetic oil and premium fuel. Regularly clean or replace the air filter and ensure the throttle body is free of carbon buildup. Consider upgrading the exhaust system for better airflow. Maintain proper tire pressure and alignment to reduce engine strain. For advanced tuning, consult a professional to adjust the ECM settings for improved power and efficiency.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Mazda CX-9 2007-2015 Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and troubleshooting for the Mazda CX-9 with the 3.7L V6 engine.
Technical Service Bulletin: Engine Performance Updates
Coming SoonDetails updates and fixes for common engine performance issues in the 3.7L V6 engine.
Mazda CX-9 Parts and Accessories Catalog
Coming SoonOfficial catalog listing genuine parts and accessories for the 2007-2015 Mazda CX-9, including engine components.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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