Dodge Ram 3500 2003-2009 6.7L Engine Specifications
Explore detailed 6.7L Cummins Turbo Diesel engine specifications for the 2003-2009 Dodge RAM 3500. Learn about horsepower, torque, fuel systems, and maintenance tips to optimize performance and reliability.
Overview Specifications
This document provides detailed specifications and technical information about the 6.7L engine used in the 2003-2009 Dodge RAM 3500. It is designed to assist users in understanding the engine's features, performance, and maintenance requirements. The document is organized into sections for easy navigation, with subsections breaking down specific aspects of the engine. Use the search functionality to quickly locate specific details or navigate through the sections for a comprehensive overview.
How to Use
Use the search bar to enter keywords related to the information you need. The search results will highlight relevant sections and subsections for quick access.
Scroll through the document or use the table of contents to jump to specific sections. Each section is divided into subsections for detailed information on the 6.7L engine.
Key Specifications
Displacement
6.7L
Horsepower
350 hp
Torque
650 lb-ft
Fuel Type
Diesel
Compression Ratio
17.3:1
Available Specifications
Engine Specifications
This section covers the core specifications of the 6.7L engine, including displacement, configuration, and key performance metrics. It provides a detailed breakdown of the engine's design and capabilities.
Engine Specifications
This section covers the core specifications of the 6.7L engine, including displacement, configuration, and key performance metrics. It provides a detailed breakdown of the engine's design and capabilities.
General Specifications
- Displacement: 6.7 liters (408 cubic inches)
- Configuration: Inline 6-cylinder
- Aspiration: Turbocharged with intercooler
- Fuel System: High-pressure common rail direct injection
- Bore x Stroke: 4.21 in x 4.88 in
- Compression Ratio: 17.3:1
Performance Metrics
- Horsepower: 350 hp @ 3,000 rpm
- Torque: 650 lb-ft @ 1,500 rpm
- Maximum Engine Speed: 3,200 rpm
- Fuel Type: Diesel
- Emission Standards: Meets EPA 2007 standards
Engine Design
This section delves into the design features of the 6.7L engine, including its construction materials, cooling system, and lubrication system. It highlights the engineering behind the engine's durability and efficiency.
Engine Design
This section delves into the design features of the 6.7L engine, including its construction materials, cooling system, and lubrication system. It highlights the engineering behind the engine's durability and efficiency.
Construction Materials
- Block Material: Cast iron with compacted graphite iron (CGI)
- Cylinder Head Material: Aluminum alloy
- Pistons: Forged aluminum
- Crankshaft: Forged steel
- Connecting Rods: Forged steel
Cooling and Lubrication
- Cooling System: Liquid-cooled with dual thermostats
- Oil Capacity: 12 quarts (with filter)
- Oil Type: 15W-40 synthetic diesel oil
- Oil Change Interval: 7,500 miles or 6 months
- Coolant Capacity: 28 quarts
Maintenance and Service
This section provides guidelines for maintaining and servicing the 6.7L engine. It includes recommended service intervals, common maintenance tasks, and tips for ensuring optimal engine performance.
Maintenance and Service
This section provides guidelines for maintaining and servicing the 6.7L engine. It includes recommended service intervals, common maintenance tasks, and tips for ensuring optimal engine performance.
Service Intervals
- Oil Change: Every 7,500 miles or 6 months
- Fuel Filter Replacement: Every 15,000 miles
- Air Filter Replacement: Every 30,000 miles
- Coolant Flush: Every 60,000 miles or 5 years
- Timing Belt Inspection: Every 100,000 miles
Common Maintenance Tasks
- Check and replace engine belts as needed
- Inspect and clean the turbocharger
- Monitor and top off coolant levels
- Inspect and replace glow plugs if necessary
- Check for and address any oil or coolant leaks
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Engine Specifications
Overview
- Type
- Turbocharged Diesel Inline-6
- Configuration
- 6 cylinders, inline
- Platform
- Cummins ISB 6.7L
- Material
- Cast iron block, aluminum cylinder head
- Location
- Front, longitudinal
Dimensions
- Length
- 37.5 inches (952.5 mm)
- Width
- 30.2 inches (767 mm)
- Height
- 38.1 inches (968 mm)
- Weight
- 1100 lbs (499 kg)
- Bore
- 4.21 inches (107 mm)
- Stroke
- 4.88 inches (124 mm)
- Displacement
- 408 cubic inches (6.7 liters)
Materials
- Block
- Cast iron
- Cylinder Head
- Aluminum
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Fuel System
-
- High-pressure common rail fuel injection
- Electronically controlled
- Variable geometry turbocharger
- Cooling System
-
- Liquid-cooled
- Dual thermostats
- High-capacity radiator
- Emissions
-
- Exhaust gas recirculation (EGR)
- Diesel particulate filter (DPF)
- Selective catalytic reduction (SCR)
- Performance
-
- 325-350 horsepower
- 610-650 lb-ft torque
- Turbo lag reduction
- Electronics
-
- Engine control module (ECM)
- Onboard diagnostics (OBD-II)
- Integrated sensors
Safety Features
- Engine Protection
-
- Overboost protection
- Overheat shutdown
- Low oil pressure shutdown
- Emissions Control
-
- DPF regeneration
- SCR system monitoring
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Precision-balanced components
- Vibration Control
-
- Hydraulic engine mounts
- Balanced crankshaft
Accessories
- Cooling
-
- High-capacity fan
- Oil cooler
- Transmission cooler
- Electrical
-
- High-output alternator
- Dual batteries
- Glow plug system
- Exhaust
-
- Turbocharger
- DPF
- SCR system
Maintenance
- Service interval
- 15,000 miles or 12 months
- Service Items
-
- Oil and filter change
- Fuel filter replacement
- Air filter inspection
- Coolant level check
- EGR system inspection
- Maintenance Notes
- Use only recommended fluids and filters for optimal performance.
Warranty
- Basic
- Miles: 100,000Years: 5Coverage: Engine components
- Powertrain
- Miles: 100,000Years: 5Coverage: Engine, transmission, drivetrain
- Emissions
- Miles: 50,000Years: 5Coverage: DPF, SCR, EGR systems
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Perforation from corrosion
Production Details
- Manufacturer
- Cummins Inc.
- Manufacturing Process
-
- Precision casting
- CNC machining
- Automated assembly
- Quality Control
- Testing: Dyno testing, Leak testing, Cold start testingStandards: ISO 9001, ISO 14001
- Sustainability Practices
-
- Recycled materials
- Energy-efficient manufacturing
- Low-emission production
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: Less than 0.1%
Service Information for 6.7l engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Fuel filter replacement
- Air filter inspection
- Coolant level check
- EGR system inspection
Use only recommended fluids and filters for optimal performance.
- Transmission fluid check
- Turbocharger inspection
- DPF system check
- SCR system inspection
Ensure all emissions systems are functioning properly.
- Timing belt replacement
- Water pump replacement
- Complete engine diagnostics
- Full emissions system check
Major service interval; consider professional inspection.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 6.7L engine compatible with other Dodge RAM models?
Is the 6.7L engine compatible with other Dodge RAM models?
The 6.7L Cummins turbo diesel engine is specifically designed for the 2003-2009 Dodge RAM 3500. While it shares some components with other Cummins engines, compatibility with other RAM models or years is limited. Always verify engine codes and vehicle specifications before attempting cross-model installations to avoid mechanical or electrical issues.
Q2 What are the maintenance requirements for the 6.7L engine?
What are the maintenance requirements for the 6.7L engine?
The 6.7L engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 7,500 miles, fuel filter replacement every 15,000 miles, and air filter checks every 12,000 miles. Additionally, inspect the cooling system, belts, and hoses annually. Adhering to the manufacturer’s maintenance schedule is crucial for longevity and reliability.
Q3 How do I replace the 6.7L engine in a Dodge RAM 3500?
How do I replace the 6.7L engine in a Dodge RAM 3500?
Replacing the 6.7L engine involves several steps: disconnect the battery, drain fluids, and remove the radiator, exhaust system, and transmission connections. Use an engine hoist to lift the engine out. 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 task.
Q4 What should I do if my 6.7L engine is overheating?
What should I do if my 6.7L engine is overheating?
Overheating can result from coolant leaks, a faulty thermostat, or a clogged radiator. First, check coolant levels and inspect for leaks. Test the thermostat and replace it if necessary. Flush the radiator if clogged. If the issue persists, inspect the water pump and fan operation. Addressing overheating promptly prevents engine damage.
Q5 How can I optimize the performance of my 6.7L engine?
How can I optimize the performance of my 6.7L engine?
To optimize performance, use high-quality diesel fuel and additives to clean the fuel system. Upgrade the air intake and exhaust systems for better airflow. Regularly service the turbocharger and ensure the engine control module (ECM) is updated. Consider performance tuning modules for enhanced power and efficiency, but ensure they comply with emissions regulations.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2003-2009 Dodge RAM 3500 Service Manual
Coming SoonComprehensive guide covering engine maintenance, repair procedures, and technical specifications for the 6.7L Cummins engine.
Technical Service Bulletin: 6.7L Engine Updates
Coming SoonDetails critical updates and fixes for the 6.7L engine, including software patches and hardware modifications.
Dodge RAM 3500 Parts Catalog
Coming SoonComplete catalog of OEM and aftermarket parts for the 2003-2009 Dodge RAM 3500, including engine components.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
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.
Intellectual Property
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.