• Trusted by Racers

    Professional-grade parts used trackside.

  • Real Support, Real People

    Expert help during business hours.

  • Secure Shopping

    Encrypted checkout & trusted payments.

  • Fast U.S. Shipping

    Orders ship quickly from regional warehouses.

K&N Engineering 63-9023 AirCharger Performance Cold Air Intake for Toyota 4Runner V6 4.0L

knn63-9023
In stock
Cold Air Intake
$346.99
Upgrade your Toyota 4Runner with the K&N Engineering 63-9023 AirCharger Performance Cold Air Intake, designed to...
$346.99

K&N Engineering 63-9023 AirCharger Performance Cold Air Intake for Toyota 4Runner V6 4.0L

Upgrade your Toyota 4Runner with the K&N Engineering 63-9023 AirCharger Performance Cold Air Intake, designed to boost engine airflow and improve overall vehicle performance. This high-density polyethylene (HDPE) rotationally-molded tube enhances airflow to your engine, resulting in a guaranteed increase in horsepower and torque. The system is engineered with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media, allowing up to 100,000 miles between filter cleanings under normal highway driving conditions. The oversized, conical filter design maximizes airflow while maintaining excellent filtration, contributing to improved acceleration and throttle response. A custom heat shield is included to prevent intake air from being heated by the engine bay, ensuring cooler, denser air reaches your engine for optimal combustion. The entire installation process typically takes less than 90 minutes, making it accessible for DIY enthusiasts and professional installers alike. This intake system is tailored to fit specific Toyota 4Runner models from 2003 to 2007, providing a direct and secure fit that enhances engine performance without compromising reliability. Please note that some states have restrictions on the legality of this product for street use, so verify CARB compliance for your vehicle if applicable. Backed by K&N's No-Hassle Lifetime Limited Warranty, this system offers long-term performance and peace of mind. Enhance your vehicle*s power and efficiency with this high-quality, durable cold air intake from K&N Engineering, designed to deliver consistent performance mile after mile.

Features:

  • High-density polyethylene (HDPE) rotationally-molded tube increases airflow to your engine
  • Washable, reusable High-Flow Air Filter with oiled cotton media for long service intervals
  • Oversized, conical filter design allows up to 100,000 miles between filter cleanings
  • Custom heat shield protects intake air from engine bay heat, ensuring cooler air intake
  • Quick installation typically completed in less than 90 minutes
  • Engineered specifically for Toyota 4Runner models from 2003 to 2007
  • Guaranteed increase in horsepower and torque for improved vehicle performance
  • Protected by K&N*s No-Hassle Lifetime Limited Warranty
  • Designed for easy maintenance and long-lasting durability
  • Not CARB approved; verify local regulations for street use compliance

Fitment:
2003 Toyota 4Runner Limited
2003 Toyota 4Runner Sport
2003 Toyota 4Runner SR5
2004 Toyota 4Runner Limited
2004 Toyota 4Runner Sport
2004 Toyota 4Runner SR5
2005 Toyota 4Runner Limited
2005 Toyota 4Runner Sport
2005 Toyota 4Runner SR5
2006 Toyota 4Runner Limited
2006 Toyota 4Runner Sport
2006 Toyota 4Runner SR5
2007 Toyota 4Runner Limited
2007 Toyota 4Runner Sport
2007 Toyota 4Runner SR5
2008 Toyota 4Runner Limited
2008 Toyota 4Runner Sport
2008 Toyota 4Runner SR5

Read More
Read Less

Shipping

Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

Your cart

×