Dodge Durango 2004-2009 3.7L Engine Engine Specifications
Dodge Durango 2004-2009

Dodge Durango 2004-2009 3.7L Engine Specifications

Explore detailed technical specifications for the 3.7L engine in the 2004-2009 Dodge Durango. Learn about horsepower, torque, fuel systems, and more for maintenance, repair, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 3.7L engine used in the 2004-2009 Dodge Durango. It is designed to assist users in understanding the engine's features, performance, and maintenance requirements. Use the search functionality to locate specific details or navigate through the sections for a comprehensive overview of the engine's capabilities and design.

How to Use

Use the search bar to enter keywords related to the 3.7L engine, such as 'horsepower' or 'torque'. The results will highlight relevant sections and subsections for quick access.

Scroll through the document to explore major sections like 'Engine Performance' or 'Technical Specifications'. Each section contains subsections with detailed points for easy reference.

Key Specifications

Displacement

3.7L (225 cu in)

Horsepower

210 HP @ 5,200 RPM

Torque

235 lb-ft @ 4,000 RPM

Fuel Economy

15 city / 20 highway MPG

Engine Type

V6 OHV

Available Specifications

Engine Performance

This section covers the performance metrics of the 3.7L engine, including horsepower, torque, and fuel efficiency. It also highlights the engine's capabilities under various driving conditions.

Horsepower and Torque
  • 210 horsepower at 5,200 RPM
  • 235 lb-ft of torque at 4,000 RPM
  • Optimized for mid-range power delivery
  • Suitable for towing and off-road performance
Fuel Efficiency
  • 15 MPG in city driving conditions
  • 20 MPG on highways
  • Designed for balanced fuel economy
  • Uses sequential multi-port fuel injection

Technical Specifications

This section provides detailed technical information about the 3.7L engine, including its configuration, displacement, and material composition.

Engine Configuration
  • V6 engine with 60-degree bank angle
  • 3.7-liter displacement (225 cubic inches)
  • Overhead valve (OHV) design
  • Cast iron engine block with aluminum heads
Material Composition
  • Aluminum cylinder heads for weight reduction
  • Cast iron block for durability
  • Forged steel crankshaft
  • High-strength connecting rods

Maintenance and Durability

This section outlines the maintenance requirements and durability features of the 3.7L engine, including recommended service intervals and common issues.

Service Intervals
  • Oil change every 5,000 miles
  • Spark plug replacement every 30,000 miles
  • Timing belt inspection every 60,000 miles
  • Coolant flush every 100,000 miles
Common Issues
  • Potential for oil leaks from valve cover gaskets
  • Occasional misfires due to worn spark plugs
  • Cooling system maintenance is critical
  • Regular inspection of the timing belt is recommended

Engine Specifications

Overview

Type
V6
Configuration
60-degree V
Platform
Chrysler PowerTech
Material
Aluminum block and heads
Location
Front, longitudinal

Dimensions

Length
26.5 in (673 mm)
Width
28.3 in (719 mm)
Height
27.6 in (701 mm)
Displacement
226.1 cu in (3.7 L)
Bore
3.66 in (93 mm)
Stroke
3.58 in (91 mm)
Weight
385 lbs (175 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
  • Returnless fuel system
Ignition System
  • Coil-on-plug ignition
  • Distributorless ignition system
  • Waste spark technology
Cooling System
  • Cross-flow aluminum radiator
  • Electric cooling fan
  • Thermostatically controlled
Emissions
  • EGR system
  • Catalytic converters
  • OBD-II compliant
Performance
  • 210 hp @ 5200 rpm
  • 235 lb-ft @ 4000 rpm
  • 10.3:1 compression ratio

Safety Features

Engine Protection
  • Low oil pressure shutdown
  • Overheat protection
Emissions Control
  • Closed-loop fuel control
  • Evaporative emissions system
Electrical Safety
  • Fused ignition system
  • Short circuit protection

Comfort Features

Noise Reduction
  • Acoustic engine cover
  • Hydraulic engine mounts
Vibration Control
  • Balanced crankshaft
  • Dual-mass flywheel
Climate Control
  • Heated intake manifold
  • Cold-start enrichment

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 flush
  • Timing belt inspection
Maintenance Notes
Use synthetic 5W-20 oil for optimal performance

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Bumper-to-bumper
Powertrain
Miles: 60,000
Years: 5
Coverage: Engine and transmission
Corrosion
Miles: 100,000
Years: 5
Coverage: Perforation only
Emissions
Miles: 80,000
Years: 8
Coverage: Federal emissions components

Production Details

Manufacturer
Chrysler Group LLC
Manufacturing Process
  • Casting of aluminum block
  • CNC machining
  • Assembly line production
Quality Control
inspection: 100% engine testing
Tolerances: Within 0.001 in (0.025 mm)
Sustainability Practices
  • Recycled aluminum usage
  • Low-VOC paints
  • Waste reduction programs
Production Metrics
Units Per Day: 500
Defect Rate: 0.5%
Energy Usage: 15 kWh per engine

Service Information for 3.7l engine Service

Maintenance and service requirements specific to this component

7,500
6
  • Oil and filter change
  • Tire rotation
  • Fluid level checks
  • Brake inspection
  • Air filter inspection

Use only manufacturer-recommended fluids

30,000
24
  • Replace spark plugs
  • Inspect timing belt
  • Check ignition system
  • Fuel system cleaning
  • Coolant system flush

Timing belt replacement recommended at 60,000 miles

60,000
48
  • Replace timing belt
  • Replace water pump
  • Transmission service
  • Replace accessory belts
  • Comprehensive engine diagnostics

Major service interval - requires specialized tools

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 3.7L engine compatible with other Dodge models from 2004-2009?

The 3.7L V6 engine used in the 2004-2009 Dodge Durango is specifically designed for this model and may not be directly compatible with other Dodge vehicles without modifications. It is recommended to consult the vehicle's service manual or a certified mechanic to confirm compatibility with other models, as mounting points, wiring harnesses, and transmission interfaces may differ.

Q2

What are the maintenance requirements for the 3.7L engine?

The 3.7L engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 3,000-5,000 miles, air filter replacement every 15,000 miles, and spark plug replacement every 30,000 miles. Additionally, inspect the timing belt, coolant levels, and serpentine belt periodically. Adhering to the manufacturer’s maintenance schedule is crucial for longevity and reliability.

Q3

How do I replace the 3.7L engine in a 2004-2009 Dodge Durango?

Replacing the 3.7L engine involves several steps: disconnect the battery, drain fluids, remove the engine mounts, and detach electrical connections and hoses. Use a hoist to lift the engine out of the vehicle. Install the new engine by reversing the process, ensuring all connections are secure. Torque bolts to manufacturer specifications and refill fluids. Professional assistance is recommended for this complex procedure.

Q4

What should I do if my 3.7L engine is overheating?

If your 3.7L engine overheats, first check the coolant level and inspect for leaks. Ensure the radiator fan is functioning and the thermostat is not stuck. Flush the cooling system if necessary. If the issue persists, inspect the water pump and head gasket for damage. Addressing overheating promptly is essential to prevent severe engine damage.

Q5

How can I optimize the performance of my 3.7L engine?

To optimize the 3.7L engine’s performance, use high-quality synthetic oil and ensure regular maintenance. Upgrade the air intake and exhaust systems for better airflow. Consider tuning the engine control unit (ECU) for improved fuel efficiency and power. Regularly inspect and replace worn components like spark plugs and filters to maintain peak performance.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2004-2009 Dodge Durango Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and troubleshooting for the 3.7L engine and other components.

Technical Service Bulletin for 3.7L Engine

Coming Soon

Details common issues, updates, and fixes for the 3.7L engine in 2004-2009 Dodge Durango models.

Dodge Durango Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket parts compatible with the 2004-2009 Dodge Durango 3.7L engine.

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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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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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