How to determine if the engine air filter needs to be replaced?

Reduced power & acceleration, strong exhaust smell, unusual increase in fuel consumption, a clogged or visibly dirty filter.

What will happen if the engine air filter is not replaced in time?

A neglected engine air filter can't remove metal shavings and sludge. This contaminated oil increases engine wear, reduces performance and fuel economy, and may cause severe damage, leading to costly repairs or total engine failure.

Does this filter actually increase horsepower?

Our industrial-grade, woven filter is engineered for high airflow with minimal resistance. This enhances engine breathing, typically resulting in a 3-5% horsepower increase and more responsive throttle action.

Is this filter easy to install?

Stop paying for easy installs! Our air filter requires zero tools and just 5 minutes of your time, maximizing your savings on labor. It's that simple.

Is it really 100% compatible?

OEM dimensions - precisely crafted from original specs. Perfect fit - each model tested to seal correctly in your original airbox.

KAX Premium Engine Air Filter, CA9687 Replacement for Ford F-150 2004-2008, Expedition 2005-2006, F-250 Super Duty 2005-2007, F-350 Super Duty 2005-2007, Lincoln Mark LT 2006-2008, Navigator 2005-2006

KAX Premium Engine Air Filter, CA9687 Replacement for Ford F-150 2004-2008, Expedition 2005-2006, F-250 Super Duty 2005-2007, F-350 Super Duty 2005-2007, Lincoln Mark LT 2006-2008, Navigator 2005-2006

Product ID: 753425984

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Details

Brand
KAX
Fit Type
Vehicle Fit
Product Dimensions
11.3"L x 8.5"W
Product Grade
Performance

💨99.9% filtration efficiency

🛠️2X longer lifespan

🛡️3X dust holding capacity

Description

💨 Upgrade your engine’s breathability — because your truck deserves premium air!

DRIVE WITH CONFIDENCE - Backed by a 1-year warranty and top-tier customer ratings, this filter is a trusted upgrade for your ride.
ENDURANCE THAT OUTLASTS - Double the lifespan of standard filters means fewer replacements and more time on the road.
TRIPLE SHIELD PROTECTION - Special embossed paper media traps more dust, maintaining power and efficiency longer.
BREATHE EASY DRIVE STRONG - 99.9% filtration efficiency keeps your engine pristine and performance peak.
PRECISION FIT FOR POWERHOUSES - Custom engineered for Ford F-Series and Lincoln models, ensuring seamless installation and optimal airflow.

The KAX Premium Engine Air Filter CA9687 is a high-performance replacement designed specifically for Ford F-150 (2004-2008), Expedition, F-250/F-350 Super Duty, Lincoln Mark LT, and Navigator models. Featuring a durable oiled cotton gauze media, it delivers 2X the lifespan of standard filters, 99.9% filtration efficiency, and 3X dust holding capacity to ensure optimal engine airflow, improved acceleration, and fuel economy. Engineered for a precise fit and backed by a 1-year warranty, this filter is a reliable upgrade for maintaining your vehicle’s peak performance.

Specifications

ASIN	B0F4QQX6FT
Best Sellers Rank	#9,707 in Automotive ( See Top 100 in Automotive ) #130 in Automotive Replacement Air Filters
Brand Name	KAX
Customer Reviews	4.9 4.9 out of 5 stars (12)
Fit Type	Vehicle Specific Fit
Included Components	1* CA9687 Engine Air Filter,1x Product Manual
Item Dimensions L x W x H	11.3"L x 8.5"W x 1.3"H
Item Type Name	CA9687 Premium Engine Air Filter
Manufacturer	KAX
Manufacturer Part Number	2802EAF881MUS
Manufacturer Warranty Description	1 YEAR
Model Number	CA9687
OEM Equivalent Part Number	4L3Z9601BA, CA9687, 46804, A35528, AF1754, 4L329601BA, 409, XA5528, AF5528, 4L3U9601BC, 36804, PAF5528, MA5528, SPA2287, TA35528, A1965, AF1219, 1AMFA00020, AF9687, LX2938, PA4167, PZA462, 1340, AF26131, P614543, CFA1219, PA462, PSA9687, PA35528, 946804, FPCA9687, MGA46804, FA1754B6, 5347WS, A5528, WAF1754, AF1219F, P6804, 61946804, GA1617, DW35528, DA1754, MG9687, GA35528, 1AMA00020A, AF17541, LA…
Product Grade	Performance Part
Shape	Rectangular
Unit Count	16.0 Ounce

Reviews

A**R

Quality filter

Nice quality air filter. Made to fit my application. Sounds great when I press down on petal. Great air flow!

3.03.2026

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