✅ Vehicle Fitment (Select 2010–2019 Models)
Compatible with select trims and engines of:
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Toyota 4Runner
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Toyota FJ Cruiser
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Toyota Land Cruiser
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Lexus GX460
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Toyota Land Cruiser Prado
⚠ Fitment varies by engine (4.0L V6, 4.6L V8, 5.7L V8 depending on region). Always confirm before ordering.
Why Choose K&N KNA-2438?
🌬 Increased Airflow
Designed to reduce intake restriction compared to standard disposable filters.
⏳ 18,000-Mile Service Interval
Long-life design means fewer replacements.
🛡 High-Efficiency Filtration
Captures contaminants while maintaining airflow balance.
🔧 Drop-In Panel Fit
Installs in factory airbox — no modifications required.
K&N Performance Air Filter
K&N has been the #1 Brand in Performance Air Filtration since 1969, bringing you the best in performance and protection for whatever you drive. Offering a long-life solution for every driver, K&N’s performance technology is now available in a premium 18,000 Mile filter to provide you extended life compared to traditional 12,000 Mile disposable filters. With a premium synthetic or cellulose blend filter media, based on application, these filters provide up to 99% engine protection for your vehicle. They are designed to meet or exceed OEM specifications and will install easily into your factory air box in minutes.
Features:
- Premium 18,000 Mile filter life
- Up to 99% engine protection
- Designed to meet or exceed OEM specifications
- Easy installation in minutes
Compatible Vehicles:
- 2010-2023 LEXUS GX460
- 2010-2024 TOYOTA 4Runner
- 2010-2014 TOYOTA FJ Cruiser
Benefits for Toyota V6/V8 SUVs
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Improved throttle response
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Consistent airflow under load
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Maintains proper air-to-fuel ratio
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Ideal for towing and off-road use
For heavier SUVs like the GX or Land Cruiser, airflow consistency matters.
Recommended Maintenance
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Inspect every 12,000 miles
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Replace or service at up to 18,000 miles depending on driving conditions
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Clean more frequently in dusty off-road environments
If you actually use your 4Runner off-road, check it sooner.
K&N KNA-2438 Air Filter Toyota 4Runner Installation Notes
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Open airbox housing.
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Remove old filter.
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Insert KNA-2438 in correct orientation.
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Secure housing clips.
Five-minute install. No special tools required.
cosmowalker –
Works great
Salt Lake City, UT. –
These are great and I swear by em!!! Have for years… the secret? Keep it clean!!! And youll bever have issues… oh!!! LIGHT OIL!!! LIGHT!!!
Simon Kuzmin –
This is product is great. I got + horses + fuel economy. I used to have Oil filter but changed do mechanics told me that oil may damage engine or sensors. I’m glad we got dry air filter. I will recommend to but and I will buy for all my fiends and family .
Amazon Customer –
Perfect fit for my 18 4runner.
Dennison Oduber. –
Didnt fit prado with 2trfe engine
kristy –
Fit 2017 Toyota good price
FzeroX –
worked as intended
G Money –
You cannot go wrong with these. Improved air flow and improvement in mpg ~1-2
Matthew Howitt –
Fast easy drop in replacement
Good fit, good price seems to be decent quality
Trevor Grover –
Fits Well, seems to perform capably.
The product showed up as presented. I have used it for over a month now and have had no issues. It seats in the air box similarly to the OEM filter. I have had good performance this far, and may update when I test my motor oil in a few thousand K’s.Update: A recent oil sample showed a 60% decrease in engine oil silicon levels. This may or may not have anything to do with this air filter, but it does coincide with my first use of the K&N.