CarCareTruth Score
Decent, but it's tough on the environment.
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Prices may varyThis product ranks #9 of 21 in Engine Air Filter.Three above it ↓
Last reviewed May 27, 2026
TL;DR A disposable three-layer pleated replacement filter for Subaru EJ-series and EZ36D H6 platforms (2005·2015 Legacy, Outback, Forester, Impreza, and the 2015 WRX and STI only). OEM cross-reference is verified across four independent parts databases; Denso has not published ISO 5011 or SAE J726 test data for this SKU, so efficiency claims remain unverified. Fitment is confirmed by community across multiple Subaru applications; one early 2012 Forester report raises a dimension question that the majority of owners have not corroborated.
The Denso 143-3199 is a disposable pleated paper/synthetic multi-layer engine air filter for the Subaru EJ-series boxer four-cylinder and EZ36D H6 platforms spanning the 2005·2015 model years. Denso supplies OEM filtration components to multiple automakers, and the 143-3199 cross-references directly to four Subaru OEM part numbers (16546AA090, 16546AA10A, 16546AA120, 16546AA12A) confirmed across RockAuto, newparts.com, and airfilter-crossreference.com. The manufacturer claims three-layer filtration media with higher efficiency, but no ISO 5011 or SAE J726 test standard has been published for this SKU · the efficiency claim is unverified. Community reviews confirm standard OEM-interval replacement at 12,000·15,000 miles with no documented premature clogging. The product is well-reviewed by owners for the Subaru application, reflecting consistent fitment satisfaction in the majority of community reports.
Right pick for 2005·2015 Subaru Legacy, Outback, Forester, Impreza, XV Crosstrek, or Tribeca owners wanting an OEM-supplier disposable filter at competitive pricing versus the dealership. Skip if your Subaru is a 2016 or newer model · the FB-series engines in the 2016+ generation use a different air box, and the 143-3199 does not fit. WRX and WRX STI owners: confirmed fitment is limited to the 2015 model year only; pre-2015 and post-2015 WRX use different air box housings requiring a different part number. Buyers of a 2012 Forester who need exact OEM-dimension parity may prefer the Subaru dealer part given the one unresolved dimension report.
Passive replacement component · no chemical exposure pathway during installation or removal; no SDS applies. Environment score of 4.6 reflects the disposable lifecycle: a single filter is replaced every 12,000·15,000 miles, generating physical solid waste at each interval; composite paper/cardboard/foam construction has limited municipal recyclability with no manufacturer take-back program. The OEM-interval service life meets the rubric score-6 anchor with no documented premature failure.
An engine air filter only does its job if it actually fits your car, and the same vehicle often takes a different part year to year. Before you buy, find the engine air filter for your vehicle in the CarCareTruth air-filter finder · pick your year, make, and model and we'll show the filters that fit it, ranked by our independent score and cross-checked against multiple catalog fitment sources.
Yes, but only the 2015 model year. The 2015 WRX and WRX STI use the EJ257 engine with the same air box as the EJ-series Subaru lineup. Pre-2015 WRX and STI (GR/GV chassis) use a different air box and require a different part number. 2016+ WRX and STI (VA chassis, FA20DIT engine) also require a different filter. Always verify with your specific year before purchasing.
No. The 143-3199 is designed for EJ-series and EZ36D engine platforms used through 2015. The 2016+ Subaru lineup shifted to FB-series engines (FB20, FB25) and the FA20 boxer four-cylinder, which use a different air box design. The 143-3199 does not fit 2016+ Legacy, Outback, Forester, or Impreza.
One 2012 Forester report noted the 143-3199 dimensions are smaller than the OEM Denso filter with a thinner gasket. This finding has not been corroborated by other owners, including multiple positive 2013 and 2015 Outback reports. The discrepancy may reflect a difference between the Denso First Time Fit aftermarket SKU and the Denso-supplied Subaru dealer part. Buyers with 2012 Foresters who need exact OEM-dimension parity may prefer the dealer part.
Subaru's OEM service schedule specifies 12,000·15,000 miles for the EJ-series platforms this filter covers. No community reports of premature clogging were found among owners. Dusty or severe-duty driving conditions warrant the shorter end of the interval.
Marketing copy from Denso, via Amazon. Not editorial.
Per manufacturer cross-reference. Verify on Amazon before purchase.
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