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The K&N 57-1557 Performance Air Intake System delivers more airflow to the 6.7L Cummins diesel engine in 2007-2009 Dodge Ram 2500 and 3500 pickups. This kit replaces the factory air filter and intake tube with a roto-molded HDPE tube and oversized oiled cotton filter for dyno-proven gains of 17.39 HP at 2900 RPM and 25.79 ft-lbs torque at 2200 RPM. A custom heat shield keeps intake air cool while the washable filter lasts up to 100000 miles between services.
Key Features
- High-Flow Air Filter: Washable reusable oiled cotton media in oversized conical design needs cleaning only every 100000 miles under highway conditions.
- Custom Heat Shield: Blocks engine bay heat to provide cooler denser intake air.
- Filter includes K&N oil for proper installation service with provided cleaner kit.
- Proven leader in air intake systems with millions sold worldwide.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2007-2009 | Dodge | Ram 2500 | Laramie, SLT, ST, SXT |
| 2007-2009 | Dodge | Ram 3500 | Laramie, SLT, Sport, ST |
Specifications
| Brand | K&N Engineering |
|---|---|
| Manufacturer Part Number | 57-1557 |
| Product Type | Cold Air Intakes |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new K&N cold air intakes identified by manufacturer part number 57-1557. Hardware, adapters, clamps, hoses, filters, and service supplies are included only when stated for this exact product.
About K&N Engineering
K&N develops reusable air filtration, intake, oil filtration, fuel filtration, and related performance products for vehicle-specific and dimensional applications.
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Frequently Asked Questions
How do I confirm K&N 57-1557 fits my vehicle?
Match the year, make, and model in the fitment table, then confirm the engine, factory housing, sensor layout, emissions notes, and any application restrictions stated for this exact part.
Does K&N 57-1557 require tuning or emissions verification?
Requirements vary by vehicle and intake configuration. Check the current K&N application and emissions notes, and complete any required calibration before full-load operation.
What should be checked after installing K&N 57-1557?
Verify seals, clamps, fasteners, hoses, sensors, wiring, and surrounding clearance as applicable. Check for leaks or contact, then follow the manufacturer service and reinspection schedule.
Installation Instructions
- Disconnect battery and remove factory intake components before starting
- Uses existing mounting points compatible with stock hardware no modifications needed
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