Luber-finer CAF1742 Cabin Air Filter

The CAF1742 is Luber-finer's single-layer paper cabin air filter for a narrow group of older GM vehicles across six platforms. The filter media is described as "Paper-like material" in the product specifications -- a standard cellulose/paper construction with no multi-layer or activated carbon design. It captures pollen, dust, and airborne particles but does not address cabin odors or VOCs. The manufacturer rates the interval at 18,000 miles or one year, which is above the 12,000-15,000-mile category norm, though no owner review in the available sample explicitly describes the filter's condition at that swap point. Fitment is confirmed for the Buick Lucerne by owners and appears workable on the Buick LeSabre with effort, but some owners report the filter does not fit the LeSabre 2000-05.

The right pick for owners of confirmed-fit vehicles in this older GM group who need a basic pollen and particle filter on a budget. Oldsmobile Aurora and Pontiac Bonneville owners should verify fitment independently before ordering -- community confirmation is not available for those platforms in the current review data. Skip if your priority is odor control or allergen filtration beyond basic particle capture: there is no activated carbon layer and no published efficiency certification. Skip if your vehicle is a Buick LeSabre -- fitment is contested by community reports for the 2000-05 model years, and installation has been described as tricky even when the filter does fit.

Passive replacement component -- single-layer paper filter with no chemical exposure pathway during installation. The filter media is inert; no volatile compound is emitted into the cabin during service. The probable cardboard frame is recyclable if separated at end of service; the paper media is landfill-bound as mixed waste. At a rated 18,000-mile or one-year replacement interval, the per-year disposal footprint is one spent filter, consistent with standard replacement frequency for this vehicle class.

Not sure this filter fits your car? Find the cabin air filter for your vehicle in the CarCareTruth cabin-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.