ACDelco A3185C Engine Air Filter

The A3185C is a disposable pleated-cellulose engine air filter classified by ACDelco as "GM Original Equipment" — the same part Cadillac installs at the factory and supplies through dealerships as GM 22844634. Construction is standard OEM: resin-treated paper media with a molded urethane sealing rim engineered to the CTS V-Sport intake box geometry. ACDelco does not publish a per-SKU ISO 5011 efficiency curve for this filter; the filtration claim rests on GM's internal validation as the OEM specification for the 3.6L Twin-Turbo LF3 engine — strong evidence of OEM-equivalence, but not independent third-party test data. The OEM cross-reference to GM 22844634 is confirmed across GMPartsDirect, Walmart, Zoro, partshawk.com, sdparts.com, and RockAuto. Service interval follows the Cadillac CTS V-Sport owner's manual: 45,000 miles under normal driving conditions, 22,500 miles under severe-service conditions.

Right pick for a 2014–2019 Cadillac CTS V-Sport (or V-Sport Premium Luxury) owner who wants the genuine GM OEM filter for the 3.6L Twin-Turbo intake and is comfortable paying an OE premium over generic aftermarket alternatives that fit the same box. Skip if your CTS is the standard 2.0L Turbo variant or the 6.2L supercharged CTS-V — both use different filters; verify your engine code is LF3 before ordering. Also skip if you own a 2020+ Cadillac CT5-V or any Chevy / GMC truck or SUV (Silverado, Tahoe, Suburban, Sierra, Yukon) — the A3185C does not fit those platforms; ACDelco publishes a different part number for each of those applications.

Passive replacement component — no chemical exposure pathway during installation or removal; no SDS applies. Environment score of 4, reflecting a standard disposable filter lifecycle: a single-use paper-and-urethane unit replaced on the GM-specified 45,000-mile service interval, with composite construction that goes to landfill at replacement with limited municipal recyclability.