Side Window Deflectors Vent Window Visor for 2015-2018 Silverado

In this review the focus is on a practical accessory for owners of Extended Cab or Double Cab Chevrolet Silverado and GMC Sierra trucks from model years 2014 through 2018. The bottom line: these side window deflectors are best for truck owners who want improved ventilation and protection from rain without drilling or complex installation. They deliver a simple outside mount solution that keeps windows usable in wet weather and helps reduce interior fogging while giving the cab a finished look.

Key Features

• Exact fit coverage: Designed for 14-18 Silverado 1500 and 15-18 Silverado 2500/3500 HD Extended Cab models, plus equivalent Sierra models, so buyers know which cab types are covered.
• 4 piece set: Includes both driver and passenger side window rain guards for both front and rear side windows on Extended/Double Cab trucks, providing full-side protection.
• Outside mount installation: Uses pre applied automotive grade adhesive tape so installation requires no drilling or special hardware and can be completed with a towel and steady alignment.
• Weather resistant material: Made from reinforced acrylic that resists deformation and cracking in hot or cold conditions to protect from heat, wind, and rain.
• Improved ventilation: Allows fresh air circulation while shielding against rain, which helps reduce window fogging and improves in-cab comfort during variable weather.

Who It's For

This product is aimed at owners of 2014-2018 Chevrolet Silverado and 2014-2018 GMC Sierra Extended Cab or Double Cab trucks who want a noninvasive upgrade to keep windows slightly open in rain and improve ventilation. It suits owners who prefer an outside mount visor and a no-drill, adhesive installation process.

Those who need a universal fit for other cab styles or model years should look elsewhere, and buyers concerned about permanent adhesion performance in extreme climates should consider professional installation or higher-end branded alternatives if long-term stickiness is essential.

Pros & Cons

Pros

• Easy, no-drill installation with pre-applied tape makes fitment quick for a DIY owner.
• Reinforced acrylic construction resists cracking in both hot and cold weather.
• Improves ventilation and reduces window fogging while keeping rain out.
• Completes the truck's exterior look by covering both driver and passenger sides.

Cons

• Some customers report inconsistent adhesion, so surface prep and temperature during installation matter.
• Fit is reported as perfect by many but does not work for all trucks, so verify cab model and year carefully.

Specifications

Fitment	14-18 Silverado 1500 Extended Cab; 15-18 Silverado 2500/3500 HD Extended Cab; 14-18 Sierra 1500 Extended Cab; 15-18 Sierra 2500/3500 HD Extended Cab
Pieces	4 piece set (driver and passenger sides)
Mounting Style	Outside mount with pre applied automotive grade adhesive tape
Material	Reinforced acrylic
Installation	Wipe clean, align, affix tape; no drilling required

Our Verdict

These side window visors are a sensible value for Extended Cab Silverado and Sierra owners who want weather protection and better ventilation without permanent modifications. They are straightforward to install and made of durable acrylic, but buyers should take care with surface prep and confirm exact cab fit to avoid adhesion or fit issues.

Frequently Asked Questions

Do these require drilling?
No, they mount on the outside with pre applied automotive grade adhesive tape and do not require drilling.

Will they reduce window fogging?
Yes, by allowing air circulation while keeping rain out they help reduce interior window fogging.

Are they durable in extreme temperatures?
The visors are made from reinforced acrylic designed not to deform or crack in hot or cold weather, though proper installation helps long term adhesion.