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2009 Mercedes Benz S550 4Matic Sedan 221.186 V8 5.5L

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Your Vehicle 2009 Mercedes Benz S550 4Matic Sedan 221.186 V8 5.5L
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2009 Mercedes Benz S550 4Matic Sedan 221.186 V8 5.5L Oxygen Sensors & Replacement Parts

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Oxygen sensor

Brand:
FAE - Corporate Logo
ES#:
3625498
Mfg#:
45420818
Ships on Sep 16, 2026
$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

Used in different positions on several Mercedes-Benz models 2X Entries For Our 25th Anniversary Sweepstakes!
Upstream Right

Brand:
Bosch - Corporate Logo
ES#:
5504966
Mfg#:
45426918
Special Order: No Guaranteed ETA
$292.99 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Oxygen Sensors & Replacement Parts

A common source of check engine lights is a failed or failing oxygen sensor. When the O2 sensor can't register oxygen content before and after your catalytic converter, it doesn't know what to do with the fuel mixture and will default to run rich. Replace old failing oxygen sensors with OEM O2 sensors or quality aftermarket O2 sensors if you're looking to save a few bucks.

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Manufacturer names and/or part numbers are used only for identification purposes.

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