Bosch Cabin Air Filter P/N:C3870WS
Bosch P3745WS cabin air filter for the 2007-2016 Hyundai Elantra and other vehicles traps dust from the air entering the cabin. It is a particulate filter designed and tested as a direct OE replacement.
A clogged cabin filter can show up as weak airflow from the vents, a dusty or musty smell, or more dust inside the car. Weak airflow alone doesn't prove the filter is the problem, since a failing blower motor can cause it too. The cabin takes a single filter.
This particulate cabin air filter fits the 2007-2016 Hyundai Elantra, the 2015-2017 Hyundai Tucson and the 2014-2018 Kia Forte. If your car isn't named here, look it up in the “Vehicles it fits” section.
Fit and size
Build and materials
Product information is for general reference and may contain errors. See our Disclaimer.
Is this the right cabin filter for the 2007-2016 Hyundai Elantra?
Yes. Bosch P3745WS is a cabin air filter for the 2007-2016 Hyundai Elantra, and each car takes one filter.
Will the P3745WS work as a Kia Forte cabin air filter for 2014-2018 models?
Yes. Bosch P3745WS fits the 2014-2018 Kia Forte, one filter per car.
Is this a Bosch HEPA cabin air filter?
No. The P3745WS is a particulate cabin air filter, not a HEPA filter, and it has no activated carbon pre-filter for odor removal.
How much dust does the P3745WS filter trap?
The multi-layer construction of this filter traps over 97.5% of dust particles 3 microns or larger, without excessive pressure drop.
How often is the Bosch P3745WS due for replacement?
The recommended replacement interval for the Bosch P3745WS is 12,000 miles.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.