1984-1996 C4 Reusable Cowl Vent Filter - Cabin Air Inlet Foam
Trap Incoming Debris and Freshen Your Cabin Air
Protect your C4’s interior ventilation system with this 1984–1996 C4 Cowl Vent Cabin Filter. Designed to mount directly over the cowl vent air inlets at the base of the windshield, this flexible foam filter blocks leaves, dust, pollen, and airborne contaminants from entering your Corvette’s HVAC system and cockpit. It installs in minutes with no tools and can be easily rinsed and reused for years of dependable protection.
This is more than just an air-quality upgrade—it’s a smart solution to extend the life of your blower motor and resist debris accumulation inside your ducts. Made from high-grade, die-cut polyurethane foam, it holds its shape and stays in place without modification. Apply your favorite fragrance to the foam for an optional air-freshening boost.
Features
• Custom-fit for 1984–1996 Corvettes
• Installs over factory cowl air intake vents
• Reusable foam construction – rinse and reinstall
• Protects interior HVAC from dust and debris
• Optional fragrance application capability
• No permanent modifications or tools required
• Made in the USA
Dimensions and Weight
• Approximate Width: 47"
• Approximate Depth: 5.5"
• Material: Polyurethane foam
• Finish: Black open-cell
Because Details Matter
If your goal is to reduce interior dust, preserve factory HVAC efficiency, or add a subtle layer of fragrance to your cabin, this is one of the easiest upgrades you can make to your C4. It’s a clever barrier that works invisibly—keeping the air cleaner and your Corvette fresher every time you drive.
Also known under these part numbers: (For reference only)
- 314184
- 603827
- 686420324225
- X-635