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The K&N 57-9034 OEM Air Box Intake System is designed to enhance the performance of your Toyota 4Runner with a straightforward and cost-effective upgrade. This system features a washable, reusable high-flow air filter paired with a CAD-designed high airflow intake tube, providing a significant boost in horsepower and torque. The oiled cotton filter is a direct replacement for the factory filter, easily dropping into the stock air box without modifications. Under normal highway driving conditions, this filter can last up to 50,000 miles before needing cleaning, offering industry-leading engine protection and durability. Installation typically takes less than 90 minutes using only standard hand tools, making it accessible for DIY enthusiasts and professional installers alike. The system is engineered specifically for various 2010-2015 Toyota 4Runner models, ensuring a precise fit and optimized airflow. Backed by the K&N 10-Year/Million Mile Limited Warranty, this intake system is legal in all 50 states and complies with EPA standards, making it a reliable and legal upgrade for your vehicle.
Features:
Fitment:
2010 Toyota 4Runner Limited
2010 Toyota 4Runner SR5
2010 Toyota 4Runner Trail
2010 Toyota FJ Cruiser Base
2011 Toyota 4Runner Limited
2011 Toyota 4Runner SR5
2011 Toyota 4Runner Trail
2011 Toyota FJ Cruiser Base
2012 Toyota 4Runner Limited
2012 Toyota 4Runner SR5
2012 Toyota 4Runner Trail
2012 Toyota FJ Cruiser Base
2013 Toyota 4Runner Limited
2013 Toyota 4Runner SR5
2013 Toyota 4Runner Trail
2013 Toyota FJ Cruiser Base
2014 Toyota 4Runner Limited
2014 Toyota 4Runner SR5
2014 Toyota 4Runner Trail
2014 Toyota FJ Cruiser Base
2015 Toyota 4Runner Limited
2015 Toyota 4Runner SR5
2015 Toyota 4Runner Trail
2015 Toyota 4Runner TRD Pro
2016 Toyota 4Runner Limited
2016 Toyota 4Runner SR5
2016 Toyota 4Runner Trail
2016 Toyota 4Runner TRD Pro
2017 Toyota 4Runner Limited
2017 Toyota 4Runner SR5
2017 Toyota 4Runner TRD Off-Road
2017 Toyota 4Runner TRD Pro
2018 Toyota 4Runner Limited
2018 Toyota 4Runner SR5
2018 Toyota 4Runner SR5 Premium
2018 Toyota 4Runner TRD Off-Road
2018 Toyota 4Runner TRD Off-Road Premium
2018 Toyota 4Runner TRD Pro
2019 Toyota 4Runner Limited
2019 Toyota 4Runner SR5
2019 Toyota 4Runner SR5 Premium
2019 Toyota 4Runner TRD Off-Road
2019 Toyota 4Runner TRD Off-Road Premium
2019 Toyota 4Runner TRD Pro
2020 Toyota 4Runner Limited
2020 Toyota 4Runner Nightshade
2020 Toyota 4Runner SR5
2020 Toyota 4Runner SR5 Premium
2020 Toyota 4Runner TRD Off-Road
2020 Toyota 4Runner TRD Off-Road Premium
2020 Toyota 4Runner TRD Pro
2020 Toyota 4Runner Venture
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.
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).
