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White rectangular pleated paper air filter with black rubber seal and PurolatorONE branding

Purolator

Purolator A31440 PurolatorONE Advanced Air Filter

SKU CH-DXZK-WQ7ZG

Traps up to 99% of dirt and debris to protect engines and can improve acceleration by up to 11%, model A31440

  • Traps up to 99% of dirt and debris protecting the engine
  • Improves acceleration by up to 11% based on a U.S. DOE study
  • Helps prevent engine wear and supports fuel efficiency
  • Replace every 12 months or 12,000 miles for peak performance
  • Fits most passenger cars and light trucks on the road

Vehicle Air Filter for Engine Protection

The Purolator A31440 PurolatorONE Advanced Air Filter is an engine intake component designed for passenger cars and light trucks. It traps up to 99% of dirt, dust, soot and other debris to prevent engine wear and maintain peak performance. Drivers seeking improved fuel efficiency and acceleration response will benefit from this replacement part.

Fitment and Replacement Interval Verification

Confirm the exact filter dimensions and housing design match your specific vehicle application before ordering. The manufacturer recommends replacing the air filter every 12 months or 12,000 miles to sustain engine efficiency. Verify compatibility using your vehicle identification details to ensure proper sealing and airflow.

Sustained Contaminant Capture Over Service Life

Under continuous driving conditions the filter media maintains high capture efficiency across the full service interval rather than degrading after initial exposure. Consistent airflow restriction control supports steady fuel economy and throttle response over thousands of miles. Regular replacement at the specified interval restores the protective barrier against abrasive particles.

How it compares

Measured against everything we stock in Signs, Labels & Address Numbers, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 70% of the 456 comparable items (median $21.99).

Specifications

Product
Brand namePUROLATOR

Questions about this item

Does the Purolator A31440 air filter package include any installation hardware, or must I buy clips or gaskets separately?

The filter is a direct-fit replacement; no separate clips, gaskets or hardware are required for installation.

How do I confirm that the A31440 is the correct version for my vehicle?

Match the A31440 part number to your owner's manual or an online fitment guide for your specific make, model and year.

What does the 99% filtration claim mean for everyday driving?

It traps up to 99% of dirt, dust and soot, helping protect the engine from wear and maintain fuel efficiency.

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