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SKU: 57-2551 | UPC: 024844109347
K&N 03-04 Lincoln Navigator V8-5.4L DOHC Performance Intake Kit
The K&N 57-2551 Performance Air Intake System delivers more power to 2003-2004 Lincoln Navigator 5.4L V8 DOHC and Ford Expedition 5.4L V8 engines by replacing stock components with a roto-molded HDPE intake tube and oversized high-flow oiled cotton air filter. This setup increases airflow volume while a custom heat shield blocks engine bay heat for cooler denser air and better combustion efficiency. Expect guaranteed gains in horsepower and torque with easy maintenance and straightforward installation.
Key Features
- Roto-molded HDPE intake tube: Expands airflow to the engine for improved throttle response and power delivery
- Oversized oiled cotton high-flow air filter: Washable and reusable design cleans every 100000 miles under normal highway driving conditions
- Custom heat shield: Shields incoming air from hot engine bay temperatures to maintain optimal intake air density
- Guaranteed power increase: Provides measurable horsepower and torque gains across the RPM range
- No-Hassle Lifetime Limited Warranty: Covers the entire system for lasting protection and peace of mind
Product Notes
- Replaces factory air filter and intake tube with no vehicle modifications needed
- Filter service interval reaches 100000 miles with regular highway use and simple cleaning process
- Packages securely to prevent damage during transit with protective foam inserts
Installation Notes
- Professional installation recommended.
- Completes in 60 minutes or less using basic hand tools like screwdriver and pliers
- Includes all necessary hardware and fits directly without cutting or drilling
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003 | Ford | Expedition | 5.4L V8 |
| 2004 | Ford | Expedition | 5.4L V8 |
| 2003 | Lincoln | Navigator | 5.4L V8 |
| 2004 | Lincoln | Navigator | 5.4L V8 |
Why Choose K&N?
- Over 60 years of engineering air intake systems for street and racing applications
- High-flow filtration traps dirt while allowing maximum airflow through oiled media
- Precision fitment tested on actual vehicles for bolt-on reliability
Frequently Asked Questions
-
Q: Does this fit my 2004 Lincoln Navigator 5.4L V8?
A: Yes, the 57-2551 installs on all 2003-2004 Lincoln Navigator 5.4L V8 models including Base, Premium, and Ultimate trims with no modifications -
Q: What materials are used in the intake tube and filter?
A: Features a high-density polyethylene HDPE roto-molded tube for durability and an oiled cotton gauze filter media for superior flow and capture -
Q: What is the warranty and service interval?
A: Backed by K&N No-Hassle Lifetime Limited Warranty with filter cleaning required only every 100000 miles under normal highway conditions
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure box 23.75 x 12.25 x 12.5 inches
- Weight: 10.1 lbs shipped
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