kurimup Premium Cabin Air Filter with Activated Carbon,Replacement for CF11809,Fit for Chevrolet Silverado 1500LD/2500HD/3500HD/Suburban,GMC Sierra 1500/2500HD/3500HD/Yukon.

A cabin air filter is one of those quiet, unglamorous parts that determines how pleasant your daily drive feels. I swapped the stock filter in my 2016 Silverado 2500HD for the Kurimup cabin filter (CF11809) to see how a carbon option would handle dust, pollen, and occasional diesel fumes without taxing the HVAC system. After a few weeks of mixed driving—highway commutes, a couple gravel-road runs, and lots of A/C time—I came away impressed for the price.

Installation and fit

The install took less than five minutes with no tools. On my truck, it was the typical glovebox routine: drop the glovebox, pop the access door, slide the old filter out, and insert the new one with the airflow arrow pointing down. The filter slipped into the housing without fighting me—no bent pleats or forced edges—and the access panel closed cleanly.

A few small tips that made it cleaner and more effective:
- Vacuum the filter cavity and blower intake before dropping the new one in; you’ll keep leaves and grit from fouling the fresh media.
- Note the airflow direction on the old filter before you remove it and match it on the new one.
- After installation, run the fan on medium for a minute with the windows open; it helps clear any loose carbon dust.

Build-wise, the Kurimup uses a paper-style frame with a carbon-infused media layer. The pleat spacing is consistent and feels reasonably dense for this class. It’s not rigid like some plastic-framed premium filters, but it held its shape fine during insertion and showed no tendency to collapse once seated. Dimensions matched my housing exactly, with no gaps for bypass air.

Air quality and odor control

The benefits of a carbon cabin filter usually show up in two ways: fewer particulates floating around and better control of odors. Within a day, the stale cabin smell I’d been noticing after long, humid drives subsided. With outside air on, brief whiffs of diesel from nearby trucks were muted and didn’t linger as long. It won’t erase a strong odor at its source—no filter will—but it noticeably dulls the peak intensity and clears the cabin faster once you’re past it.

On dusty stretches, I saw less fine dust collecting on the dash over the course of a week compared to my worn filter. The windshield film that tends to build up between cleanings was slower to return as well. Pollen days were also kinder to my sinuses. Kurimup claims a three-layer media that captures up to 99% of common airborne contaminants like dust, soot, and pollen; I can’t lab-verify that number, but subjectively it performed at least on par with OEM filters I’ve used, with the added odor scrubbing that basic paper filters lack.

Worth noting: the carbon media has a faint neutral charcoal scent right after installation. In my case it disappeared within a day.

HVAC performance and noise

A frequent concern with carbon filters is airflow restriction. With the Kurimup, fan output felt the same as a fresh OEM filter and clearly stronger than the clogged one I replaced. At identical fan settings, cabin cooldown was as quick as ever, and the defroster cleared condensation without the musty smell I’d been getting on damp mornings. Blower noise didn’t change—no whistling or harmonic hums you sometimes hear with ill-fitting filters.

This matches what I’d expect: a fresh filter restores HVAC efficiency if your old one is loaded, and a properly pleated carbon filter shouldn’t create significant extra resistance. If your system suddenly gets louder or airflow drops after the swap, you probably have the filter backward or the wrong size.

Durability and maintenance

After a few weeks, the media darkened as it trapped debris, but the pleats stayed intact and the frame didn’t warp. I pulled it once to check and it slid back in without shedding. This is a disposable filter; don’t wash or blow it out with compressed air—you’ll damage the media and the carbon.

Replacement interval depends on your environment:
- Typical suburban driving: inspect at 12 months or ~12,000 miles.
- Dusty or unpaved roads, wildfire smoke, high pollen: plan for 6–9 months.
- If you run recirculation frequently, you can often stretch a bit longer since you’re not pulling as much outside air.

A quick guideline: if you notice persistent odors, a film on the glass returning quickly after cleaning, or reduced airflow at the same fan speed, it’s time to replace.

Compatibility and sizing

This CF11809 variant is targeted at late-model GM trucks and SUVs. It fit my 2016 Silverado 2500HD perfectly, and Kurimup lists coverage for Silverado/Sierra 1500/2500/3500 of select years along with Suburban/Tahoe/Yukon and Yukon XL models. Always verify against your VIN or the glovebox service parts list; GM changed HVAC modules in certain trims and years, and cabin filter housings can differ. For those who like numbers, the filter measures roughly 7 x 7.4 x 1.1 inches—useful if you’re cross-checking dimensions.

What stands out

• Easy, tool-free install. If you can open your glovebox, you can do this job. Five minutes beats a trip to the dealership service lane.
• Solid odor reduction. The carbon media takes the edge off fuel and environmental smells and keeps the cabin from getting musty.
• Balanced airflow. No noticeable penalty in blower performance versus a fresh OEM paper filter.
• Clean fit. No rattles, whistles, or bypass gaps in the housing.

Where it falls short

• Not HEPA-grade. If you need maximum fine particulate filtration (e.g., severe allergies, frequent wildfire smoke), you may want a HEPA cabin filter designed for your vehicle, understanding that HEPA often increases restriction and cost.
• Single-use design. Like most cabin filters in this category, it’s not washable, so plan on periodic replacement.
• Packaging care. Carbon media can shed a bit of dust if it’s jostled; open carefully and avoid compressing the pleats.

Value

Compared with OEM filters, the Kurimup comes in at a friendlier price while adding activated carbon—something that factory filters don’t always include. Given how often cabin filters should be replaced, the cost-to-benefit ratio here is strong. You get tangible improvement in cabin freshness and solid particulate capture without sacrificing HVAC performance.

Practical tips for the swap

• Photograph the old filter’s orientation before removal to match the airflow direction.
• Clean the filter slot with a vacuum and a small brush; leaves and fuzz collect in surprising places.
• Replace ahead of allergy season or after long wildfire smoke events; it’s cheap insurance for your lungs and your blower motor.
• Keep a spare on the shelf if you drive in dusty conditions; a mid-season swap takes minutes.

The bottom line

As a straightforward upgrade over a basic paper cabin filter, the Kurimup cabin filter does exactly what I want: it fits right, installs quickly, trims down odors, and keeps air moving freely. I noticed fresher cabin air immediately and no trade-off in A/C or defrost performance. It won’t turn your truck into a cleanroom, but for everyday driving in a truck that sees a mix of city and light off-road dust, it’s a sensible, low-cost improvement.

Recommendation: I recommend the Kurimup cabin filter for GM truck and SUV owners looking for a simple, carbon-equipped replacement that maintains HVAC performance. It’s easy to install, priced well, and offers a noticeable bump in cabin freshness. If you need HEPA-level filtration for extreme smoke or medical sensitivities, look to a higher-spec filter; otherwise, this one hits the right balance of filtration, airflow, and value.