For owners of 12-valve and 24-valve 5.9L Cummins engines who want to upgrade to the larger, higher-flowing 6.7L Cummins intake horn, the G&R Diesel Intake Conversion Plate delivers a reliable, precision-engineered solution. This billet component allows you to modernize your intake manifold setup, unlocking improved airflow potential for enhanced performance in modified, high-horsepower, or efficiency-focused builds.
Premium Construction & Materials
CNC-machined from high-quality billet aluminum, this conversion plate is built for strength, durability, and a perfect fit. It replaces the factory intake plate, providing a robust mounting surface specifically designed to accept 6.7L Cummins intake horns while maintaining structural integrity under boost and vibration.
Key Features & Design Advantages
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6.7L Intake Horn Compatibility: Enables direct bolting of a 6.7 Cummins intake horn onto your 5.9L engine, significantly increasing intake volume and flow characteristics compared to the stock manifold.
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Application-Specific Design: Engineered for 1989–2002 Dodge Cummins 5.9L 12V and 24V engines.
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Precision Machined Fit: Ensures accurate alignment and sealing for reliable operation with upgraded intake systems.
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Performance-Focused Upgrade: Ideal for custom turbo setups, compound turbo systems, or any build aiming to optimize the intake tract for better throttle response, higher airflow, and increased power potential.
Important Installation Considerations
- This plate is designed specifically to adapt and secure a 6.7L intake horn. It is not a complete intake manifold conversion.
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Fuel Line Clearance: Depending on your specific intake horn choice, turbo configuration, and other modifications, fuel lines may require rerouting or additional adjustments to avoid interference.
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Fitment Note: Due to the wide variety of aftermarket intake horns, turbochargers, and related components available in the Cummins performance market, we recommend verifying compatibility with your specific setup. G&R Diesel cannot guarantee fitment across every possible combination.
Why Choose the G&R Diesel Intake Conversion Plate?
This conversion plate is a smart, cost-effective way to bridge the gap between generations of Cummins engines, giving your 5.9L the benefits of a larger intake horn without a full manifold swap. It reflects G&R Diesel’s commitment to practical, high-quality parts that help enthusiasts achieve their performance goals while maintaining reliability.
Applications: 1989–2002 Dodge Ram 5.9L Cummins (12V & 24V)
Recommended Pairing: Combine with the G&R Diesel 2" Intake Horn Spacer (GRD59CM1003) for additional clearance and optimized geometry in many builds.
