Dodge Ram 2500 2003-2009 6.7L Engine Specifications
Explore the detailed 6.7L Cummins Turbo Diesel engine specifications for the 2003-2009 Dodge RAM 2500. Learn about horsepower, torque, fuel systems, emissions, and more for maintenance, repair, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the 6.7L engine used in the 2003-2009 Dodge RAM 2500. 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.
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Key Specifications
Displacement
6.7 liters
Horsepower
350 HP
Torque
650 lb-ft
Fuel Type
Diesel
Compression Ratio
17.3:1
Available Specifications
Engine Performance
This section covers the performance characteristics of the 6.7L engine, including horsepower, torque, and fuel efficiency. It also provides insights into the engine's design and how it contributes to the overall performance of the Dodge RAM 2500.
Engine Performance
This section covers the performance characteristics of the 6.7L engine, including horsepower, torque, and fuel efficiency. It also provides insights into the engine's design and how it contributes to the overall performance of the Dodge RAM 2500.
Horsepower and Torque
- 350 horsepower at 3,000 RPM
- 650 lb-ft of torque at 1,500 RPM
- Turbocharged design for enhanced power output
- Optimized for heavy-duty towing and hauling
Fuel Efficiency
- Average fuel economy of 14 MPG city
- Average fuel economy of 18 MPG highway
- Common Rail Direct Injection (CRDI) system
- Designed for improved fuel efficiency under load
Engine Design
This section delves into the engineering and design features of the 6.7L engine, including its construction, materials, and cooling systems. Learn about the innovations that make this engine durable and reliable.
Engine Design
This section delves into the engineering and design features of the 6.7L engine, including its construction, materials, and cooling systems. Learn about the innovations that make this engine durable and reliable.
Construction and Materials
- Cast iron engine block for durability
- Aluminum cylinder heads for weight reduction
- Forged steel crankshaft for strength
- High-strength connecting rods
Cooling System
- Dual thermostats for precise temperature control
- High-capacity radiator for efficient cooling
- Oil cooler for extended engine life
- Coolant bypass system for improved performance
Maintenance and Service
This section provides essential information on maintaining and servicing the 6.7L engine. It includes recommended service intervals, common maintenance tasks, and tips for ensuring long-term reliability.
Maintenance and Service
This section provides essential information on maintaining and servicing the 6.7L engine. It includes recommended service intervals, common maintenance tasks, and tips for ensuring long-term reliability.
Service Intervals
- Oil change every 7,500 miles or 6 months
- Fuel filter replacement every 15,000 miles
- Air filter inspection every 30,000 miles
- Coolant flush every 100,000 miles
Common Maintenance Tasks
- Regular inspection of turbocharger components
- Check and replace serpentine belts as needed
- Monitor and clean EGR system
- Inspect and replace glow plugs if necessary
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Engine Specifications
Overview
- Type
- Turbocharged Diesel Inline-6
- Configuration
- Longitudinal
- Platform
- Cummins ISB 6.7L
- Material
- Cast Iron Block, Aluminum Cylinder Head
- Location
- Front Engine, Rear-Wheel Drive/All-Wheel Drive
Dimensions
- Length
- 37.5 inches (952.5 mm)
- Width
- 30.2 inches (767 mm)
- Height
- 34.8 inches (884 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 Injection
- Electronic Control Module (ECM)
- Variable Geometry Turbocharger (VGT)
- Cooling System
-
- Dual Thermostats
- High-Capacity Radiator
- Electric Cooling Fan
- Emissions Control
-
- Exhaust Gas Recirculation (EGR)
- Diesel Particulate Filter (DPF)
- Selective Catalytic Reduction (SCR)
- Performance
-
- 325-350 HP (depending on model year)
- 610-650 lb-ft of torque
- Turbo Lag Reduction Technology
- Durability
-
- Heavy-Duty Forged Components
- Extended Oil Change Intervals
- Robust Cooling System
Safety Features
- Engine Protection
-
- Overboost Protection
- Overheat Shutdown
- Low Oil Pressure Shutdown
- Emissions Safety
-
- DPF Regeneration Monitoring
- Exhaust Temperature Sensors
- SCR System Diagnostics
Comfort Features
- Noise Reduction
-
- Acoustic Engine Cover
- Dual-Mass Flywheel
- Hydraulic Engine Mounts
- Vibration Control
-
- Balanced Crankshaft
- Precision Engine Mounts
- Damped Accessory Drive
Accessories
- Cooling System
-
- High-Flow Water Pump
- Dual Thermostats
- Electric Cooling Fan
- Fuel System
-
- High-Pressure Fuel Pump
- Fuel Filter with Water Separator
- Fuel Heater
- Air intake
-
- High-Efficiency Air Filter
- Turbocharger with VGT
- Charge Air Cooler
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 approved synthetic oil and OEM filters for optimal performance.
Warranty
- Basic
- Miles: 100,000Years: 5Coverage: Bumper-to-Bumper
- Powertrain
- Miles: 100,000Years: 5Coverage: Engine, Transmission, Drivetrain
- Emissions
- Miles: 50,000Years: 5Coverage: Catalytic Converter, DPF, SCR System
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Perforation from Corrosion
Production Details
- Manufacturer
- Cummins Inc.
- Manufacturing Process
-
- Precision Casting for Block and Head
- CNC Machining for Critical Components
- Robotic Assembly
- Quality Control
- Testing: Dyno Testing, Leak Testing, Cold Start TestingStandards: ISO 9001 Certification, EPA Emissions Compliance, Durability Testing
- Sustainability Practices
-
- Recycled Materials in Casting
- Low-Emission Manufacturing
- Energy-Efficient Assembly
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: Less than 0.1%Lead Time: 4-6 weeks
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 approved synthetic oil and OEM filters.
- Replace Air Filter
- Inspect Turbocharger
- Check Exhaust System
- Test Emissions System
- Inspect Drive Belts
Ensure proper torque on all fasteners during reassembly.
- Replace Timing Belt
- Inspect and Clean EGR Valve
- Replace Coolant
- Check Injector Performance
- Perform Compression Test
Major service requires specialized tools and diagnostic equipment.
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 2500 and 3500 models. While it shares similarities with other Cummins engines, compatibility with other RAM models or years may require significant modifications. Always verify with a certified mechanic or Dodge dealership before attempting cross-model installations.
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, including oil changes every 7,500 miles, fuel filter replacements every 15,000 miles, and air filter inspections every 30,000 miles. Additionally, coolant and transmission fluid should be checked annually. Adhering to the manufacturer’s maintenance schedule ensures optimal performance and longevity.
Q3 How do I replace the 6.7L engine in a 2003-2009 Dodge RAM 2500?
How do I replace the 6.7L engine in a 2003-2009 Dodge RAM 2500?
Replacing the 6.7L engine involves disconnecting the battery, draining fluids, and removing components like the radiator, exhaust system, and transmission. Use a hoist to lift the old engine out and carefully install the new one, ensuring all connections are secure. Refer to the service manual for detailed instructions and torque specifications.
Q4 What should I do if my 6.7L engine is losing power?
What should I do if my 6.7L engine is losing power?
If your 6.7L engine is losing power, check for clogged fuel filters, dirty air filters, or a malfunctioning turbocharger. Inspect the exhaust system for blockages and ensure the fuel injectors are functioning properly. If issues persist, use an OBD-II scanner to diagnose error codes and consult a professional mechanic.
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, consider upgrading the air intake system, installing a performance exhaust, and using high-quality synthetic oil. Regularly clean the EGR valve and ensure the turbocharger is in good condition. Tuning the engine with a performance chip can also enhance horsepower and torque, but ensure modifications comply with local 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 2500 Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the 6.7L engine and related systems.
Cummins 6.7L Engine Technical Bulletin
Coming SoonLatest updates and technical service bulletins for the 6.7L Cummins engine, including common issues and fixes.
Dodge RAM 2500 Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket parts for the 2003-2009 Dodge RAM 2500, 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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