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2020 Nissan Altima Engine Air Filters

Check the engine, size and position shown for each product before ordering.

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PG PA99503 engine air filter

2.5L gasoline · CA12551 / Nissan 16546-6CA0A. Nissan 16546-6CA0A · CA12551.

Fitment & product details

Nissan 16546-6CA0A · CA12551. Compatible only with the saved vehicle and engine applications.

Confirm the exact engine, filter reference, dimensions, air-box shape, and current Amazon vehicle checker before ordering.

Full product details

Nissan 16546-6CB0A engine air filter

2.5L gasoline · Nissan 16546-6CA0A / 6CB0A. Nissan 16546-6CA0A / 6CB0A family.

Fitment & product details

Nissan 16546-6CA0A / 6CB0A family. Compatible only with the saved vehicle and engine applications.

Confirm the exact engine, filter reference, dimensions, air-box shape, and current Amazon vehicle checker before ordering.

Full product details
Vehicle fitment, specifications & installation

What to verify

  • Exact engine and air-box configuration
  • Filter reference, dimensions, and seal shape
  • Gasoline, turbo, hybrid, or performance-engine exclusions

Installation guidance

Open the air-box without pulling on sensors or intake wiring, clean loose debris from the housing, seat the gasket evenly, and fully resecure every clip or fastener.

Other parts for this vehicle

Continue shopping researched categories for the same year, make, and model.

Other model years & common questions

Nearby model years

Use the exact year page even when the same product family spans several years.

Frequently asked questions

Does engine choice change the 2020 Nissan Altima engine air filter?

It can. The saved applications are: 2.5L gasoline · CA12551 / Nissan 16546-6CA0A. Nissan 16546-6CA0A · CA12551. 2.5L gasoline · Nissan 16546-6CA0A / 6CB0A. Nissan 16546-6CA0A / 6CB0A family. Confirm the exact engine and air-box reference rather than relying only on the model name.

Can two engines in the same model use different filters?

Yes. Engine displacement, turbocharging, hybrid packaging, and air-box revisions can require different filters.

What should I compare before installing?

Compare the old filter’s outer dimensions, corner shape, gasket, and pleat orientation with the replacement.