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Spearhead Max Thrust Engine Air Filter Replacement | Fits 2012-2023 Mazda 6, Mazda 3 Skyactiv & Naturally Aspirated, CX-5 2.0L L4/2.5L Non-Turbo L4 | OEM Fit & High Dust Holding Capacity (MT-259)

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Availability: In Stock.
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Arrives Monday, Jun 22
Order within 18 hours and 18 minutes
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Size: MT-259 1-Pack


Features

  • Experience an Obvious Difference: Whether you are noticing a delay in acceleration, less than average gas mileage or own a higher mileage vehicle, our Max Thrust engine air filters will provide a clear and cost effective upgrade over stock performance
  • Trap 2X Dirt vs. Standard Air Filters: Our unique Hex-D pleat design creates maximum holding capacity for trapping unwanted dirt and debris without compromising airflow like standard air filters thanks to multiple layers of progressively finer filter media that allows air to flow freely even when the filter is dirty
  • Increased Power and Mileage up to 15K Miles: Deficient airflow can cause your engine to work twice as hard to suck in the minimum amount of air it needs to perform regularly, resulting in poorer gas mileage and lower power efficiency; Max Thrust air filters are designed to give your engine a break by delivering as much clean air as it needs to perform optimally up to 15K miles
  • Do It Yourself: Replacement for M a z d a 3 (2014-18), M a z d a 3 Skyactiv Only 2.0L L4 w/Engine VIN: 7,8,P (2013), M a z d a 3 2.0L L4 Engine Only w/Engine VIN: 7,8,G (2012), M a z d a 6 2.5L Naturally Aspirated L4 Only (2018-21, does not fit Turbocharged 2.5L L4), M a z d a 6 (2014-17), M a z d a CX-5 (2013-18), M a z d a CX-5 Naturally Aspirated 2.5L L4 Gas Only (19-23, does not fit 'Signature', 'Grand Touring Reserve', 2.2L L4 Diesel, 2.5L Turbocharged L4 Trims)
  • Better Filter than Your Last One: We know its hard to choose from so many different brands carrying the same product; we make it easier for our customers to decide with a simple promise

Description

Compatible Model and Year List M a z d a 3 (2014-18)M a z d a 3 Skyactiv Only 2.0L L4 w/Engine VIN: 7,8,P (2013)M a z d a 3 2.0L L4 Engine Only w/Engine VIN: 7,8,G (2012)M a z d a 6 Naturally Aspirated 2.5L L4 Only (2018-21, does not fit Turbocharged 2.5L L4)M a z d a 6 (2014-17)M a z d a CX-5 (2013-18)M a z d a CX-5 Naturally Aspirated 2.5L L4 Gas Only (19-23, does not fit 'Signature', 'Grand Touring Reserve', 2.2L L4 Diesel, 2.5L Turbocharged L4 Trims) About Spearhead We are a family-owned operation leveraging 30 years of automotive parts sourcing for some of the largest automotive aftermarket suppliers in the United States to build a brand customers can trust to find the best products at the best prices. Cross Reference Part No.’s Spearhead: MT-259Fram: CA11259 Did you know THIS about engine air filters? An engine air filter will pay for itself with the money you save at the gas pump…a new engine air filter can increase your vehicle’s MPG by up to 10%.There’s no better or cheaper investment you can make to extend the life of your vehicle than regularly replacing your engine air filter every 12-15K miles. When is the ‘right’ time to replace my engine air filter? Warning/Engine Light Turns On: A light will appear on vehicles equipped with airflow sensors.Noticeably Slower Acceleration: If your vehicle is slow to accelerate or responds poorly to pedal control this can mean your engine isn't receiving enough air to perform normally.Reduced Fuel Economy: The less oxygen an engine consumes, the more fuel it will burn – causing fuel economy to go down.Up to 15K Miles or 1 Year: If you don’t remember the last time you replaced your engine air filter it’s time to change it out!

Product Grade: Replacement Part


Brand: SPEARHEAD


Fit Type: Vehicle Specific Fit


OEM Part Number: CA11259


Shape: Rectangular


Brand Name: SPEARHEAD


Model Number: MT-259


OEM Equivalent Part Number: CA11259


Manufacturer Part Number: MT-259


Manufacturer: Spearhead


Unit Count: 1.0 Count


Shape: Rectangular


Product Grade: Replacement Part


Fit Type: Vehicle Specific Fit


Automotive Fit Type: Vehicle Specific Fit


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • ⭐️⭐️⭐️⭐️⭐️ Excellent Air Filter – Restored MPG & Acceleration!
Size: MT-450 1-Pack
This Spearhead MPG Defense Max Thrust Engine Air Filter (MT-450) is a fantastic upgrade over stock filters! Installation was super easy, and the OEM fit was perfect for my 2015 Nissan Altima 2.5L—it dropped right in with no issues. Since replacing my old filter, I’ve noticed improved throttle response and smoother engine operation. My gas mileage even went up by 2 MPG, which is a great bonus! The Hex-D pleat design truly traps more dirt while maintaining strong airflow. For just $13.99, the quality and performance exceed expectations—better than higher-priced options. If you want a simple, cost-effective way to enhance fuel efficiency and acceleration, this is a must-buy! Highly recommend! 🚗🔧✅ ... show more
Reviewed in the United States on May 29, 2025 by El Boomer

  • OEM quality
Size: MT-943 1-Pack
I have a 2021 Kia Sedona and this fits perfectly. I think some people complain because they don’t understand how the locking bars work
Reviewed in the United States on February 19, 2026 by SouthernBell

  • Great filter at a great price.
Size: MT-261 1-Pack
Good quality, seems to improve milage (+2mpg hwy) and throttle response.
Reviewed in the United States on February 26, 2026 by Dean

  • Good fit, sturdy build, easy install; time will tell on performance.
Size: MT-683 1-Pack
I ordered this filter for my 2010 Toyota Tacoma Double Cab V6 to replace an old worn K&N Filter. The value for the money is good, and if you do a side by side value and comparison between the K&N filter and cost of cleaning vs just purchasing a new filter over time, the savings are negligible. I prefer to purchase new filters when needed. On to this filter. The Spearhead filter looks a bit more robust and sturdy than the typical aftermarket filter you can purchase from Pep Boys or Auto Zone and the cost is a few dollars cheaper than buying at a brick and mortar store. The filter itself looks good and claims to remove 99.9% of particulates, but only time will tell. The build quality of the filter is sturdy and I have no qualms about the quality, etc of the filter. The filter fit perfectly in my Tacoma's engine air compartment; there were no problems with fit or closing the seal. The performance of the vehicle is great, no issues or any engine problems. As far as claims of increased power and improvement in acceleration, I have seen little to no difference with this filter. K&N's and any other aftermarket product's claims including Spearhead's are subjective until I see some way to measure this vs a traditional OEM filter. To be honest, all these claims seem to me to be marketing hype, but I am not qualified to comment. Overall, I am satisfied with this purchase and will re-evaluate it in a year (my truck is low mileage) or when the mileage hits and is due for a change. I am satisfied with this purchase, but only time will tell. I will buy again if I have no issues. ... show more
Reviewed in the United States on December 26, 2019 by DJB

  • Satisfied Customer
Size: MT-413 1-Pack
The media could not be loaded. Fit my Acura RDX 2014 perfectly. Took just 2-3 mins to replace it. Don't be afraid of a simple DIY project. It may be just placebo, but it feels like the car runs a bit more smoothly now. I had been using the old filter for almost 2 years.
Reviewed in the United States on May 10, 2026 by Rhino

  • Another Satisfied Customer!
Size: MT-943 1-Pack
I am extremely satisfied with my purchase and the price!
Reviewed in the United States on April 8, 2026 by HDH

  • Good Product
Size: MT-295 1-Pack
Perfect fit for my Subaru Outback XT. Good quality.
Reviewed in the United States on May 11, 2026 by The Truth

  • easy to install
Size: MT-050 1-Pack
fit was right on , flters appear to be good quality would purchase again
Reviewed in the United States on April 22, 2026 by Jim P.

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