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The K&N 57-2529-1 Performance Air Intake System delivers more airflow to 2001-2004 Ford Explorer 4.0L V6 SOHC engines plus compatible Ranger Sport Trac and Mazda B4000 models. This kit replaces the factory air filter and intake tube with a high-density polyethylene roto-molded tube and oversized High-Flow oiled cotton filter for guaranteed horsepower and torque gains. A custom heat shield blocks engine bay heat while the washable filter lasts up to 100000 miles under highway conditions.
Key Features
- High-Flow Oiled Cotton Air Filter: Oversized conical design provides exceptional filtration and requires cleaning only every 100000 miles on highways.
- Weight: 7.2 lbs product 9.6 lbs shipped.
- Roto-molded HDPE Intake Tube: Increases airflow volume to the engine for power gains with durable rotationally molded construction.
- Custom Heat Shield: Shields intake air from hot engine bay temperatures to maintain cooler denser air for better performance.
- Ships in protective box 24in x 14in x 9in weighs 9.6lbs total.
- Direct bolt-on fit with included hardware no cutting or drilling required.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2001 | Ford | Explorer | Eddie Bauer, Limited, Postal, XL Fleet, XLS, XLT |
| 2001-2003 | Ford | Explorer Sport | XLS |
| 2001-2004 | Ford | Explorer Sport Trac | XL, XLS, XLT |
| 2001-2003 | Ford | Ranger | Edge, XL, XLT |
| 2001-2003 | Mazda | B4000 | DS, SE |
Specifications
| Brand | K&N Engineering |
|---|---|
| Manufacturer Part Number | 57-2529-1 |
| 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 57-2529-1. 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.
Related K&N Engineering Products
- Shop all K&N Engineering products
- K&N 01-04 Ford Ranger V6-4.0L High Flow Performance Kit
- K&N 04 Ford Ranger / Mazda B4000 V6-4.0L Performance Intake Kit
- K&N 02-04 Ford Ranger / Mazda B3000 V6-3.0L Performance Intake Kit
Frequently Asked Questions
How do I confirm K&N 57-2529-1 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 57-2529-1 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 57-2529-1?
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
- Completes in 60 minutes or less using basic hand tools.
- Direct bolt-on fit with included hardware no cutting or drilling required.
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