SPEARHEAD Max Thrust Engine Air Filter MT-835 — OEM Fit, High Dust Capacity for GX460/4Runner/FJ Cruiser

The SPEARHEAD Max Thrust MT-835 is a direct-fit replacement engine air filter engineered to trap more dirt while maintaining strong airflow for Toyota GX460, 4Runner and FJ Cruiser models.

This replacement air filter is designed for drivers who want an easy, OEM-style swap that improves engine breathing without altering factory intake components. The Max Thrust MT-835 uses a multi-layer pleat design to increase contaminant capacity compared with many standard filters. It fits specified model years for the Lexus GX460, Toyota 4Runner (including the 4.0L V6 2010 application), and FJ Cruiser, allowing you to refresh filtration and help preserve engine performance between services.

How does this filter improve airflow and engine responsiveness?

The MT-835 balances filtration efficiency with unrestricted airflow by using a progressive, honeycomb-inspired pleat structure. That arrangement holds more dirt deeper in the media so the outer surface remains open longer, helping the engine draw air with less resistance.

• Hex-D pleat geometry to maximize surface area without compressing flow.
• Multi-layer filter media traps progressively finer particles.
• OEM-style frame and sealing flange maintain a factory fit and airtight seal.

How long will the SPEARHEAD Max Thrust last and when should I replace it?

Service life depends on driving conditions, but the MT-835 is designed to perform reliably through extended intervals compared with basic paper filters. Under normal highway and city driving it can be effective up to typical 12,000–15,000 mile service cycles; dusty or off-road use will require earlier inspection and replacement.

• Estimated effective service up to 15,000 miles under moderate conditions.
• Inspect at each oil change and replace sooner in dusty or off-road environments.
• OEM fit makes replacement a quick, tool-light maintenance task.

Is this an easy do-it-yourself replacement and will it fit my vehicle?

The MT-835 is manufactured to the original equipment shape and seal so it installs the same way as the factory filter. Most owners can swap the filter in minutes with basic hand tools and no intake modifications are required.

• Direct replacement for: GX460 (2010–2023), 4Runner 4.0L (2010), 4Runner (2011–2023), FJ Cruiser (2011–2014).
• OEM-style gasket ensures a proper seal without trimming or adapters.
• Simple access through the airbox — saves routine shop labor costs.

What practical benefits can I expect after installing the MT-835?

Installing this filter restores more consistent intake airflow and increases the filter's dirt-holding capacity versus many economy replacements. That can translate into steadier throttle response, fewer power dips under load, and cleaner air reaching engine components between services.

• Expanded dirt capacity keeps filter performance stable over time.
• Consistent airflow helps maintain engine efficiency during acceleration.
• Factory-fit design reduces the chance of bypass or installation issues.

Who is this for: The SPEARHEAD Max Thrust MT-835 suits owners of the listed Lexus and Toyota models who want an affordable, higher-capacity air filter that installs like OEM. It's a good choice for drivers who perform basic maintenance themselves, those who tow or carry loads where steady airflow matters, and anyone seeking a straightforward replacement that balances filtration with airflow for extended service intervals.