Deejecsun Rain Guards for Silverado/Sierra 2500HD-3500HD Crew Cab (2020–2026) — In-Channel Polycarbonate

Deejecsun Rain Guards are low-profile, in-channel window deflectors made to fit Chevy Silverado and GMC Sierra 2500HD/3500HD Crew Cabs (2020–2026) so you can crack the windows in rain or sun without letting weather or wind into the cab.

These four-piece side window deflectors are molded from shatterproof polycarbonate and designed for in-channel installation—no drilling or extra hardware required. They provide a factory-like contour that preserves the truck's styling while improving ventilation, reducing wind noise, and shielding the interior from rain, sun glare, and road debris.

How do these rain guards install and fit my truck?

Installation uses the vehicle's existing window channel so you simply slide each deflector into place. The precision-molded pieces match the contours of 2020–2026 Crew Cab Silverado and Sierra 2500HD/3500HD models for a tight, secure fit when installed correctly.

• In-channel design: slips into factory window channel—no drilling.
• Model-specific molding for Crew Cab 2500HD/3500HD trucks.
• Fast installation: typically completed in minutes per side.
• After install: avoid car washes for 24 hours to ensure seating.

What materials and durability features do these window deflectors offer?

Deejecsun rain guards are crafted from durable, shatter-resistant polycarbonate designed to withstand sun exposure and everyday road wear. The material resists cracking and discoloration, keeping the deflectors functional and visually discreet for years.

• Extra-durable polycarbonate construction for impact resistance.
• UV-resistant finish to reduce yellowing and fading.
• Low-profile look that complements truck lines without bulk.
• Engineered to block rain while allowing fresh air flow.

How do these deflectors improve comfort and cabin air quality?

By letting you keep the windows slightly open during rain or while parked, the deflectors promote continuous airflow that helps dispel heat and stale odors. They also act as a barrier against rain and wind-driven debris, enabling fresh circulation without the discomfort of direct gusts.

• Supports improved ventilation to reduce interior heat buildup.
• Helps remove lingering smells from pets, gear, or smoke.
• Prevents rain entry when windows are cracked for airflow.
• Reduces wind buffeting at typical cruising speeds with windows down slightly.

What comes in the set and what after-sales support is available?

The package includes four full-size side window deflectors sized for front and rear doors on Crew Cab models, offering a cohesive, seamless appearance. Deejecsun backs the product with a one-year warranty plus lifetime support to help with fit questions, replacements, or installation advice.

• Four-piece set: driver and passenger front and rear deflectors.
• Compatibility limited to 2020–2026 Crew Cab 2500HD/3500HD models.
• 1-year warranty and lifetime support from Deejecsun customer service.
• Note: not compatible with Regular Cab or Double Cab configurations.

Who is this for? These Deejecsun rain guards are aimed at Chevy Silverado and GMC Sierra owners with Crew Cab 2500HD/3500HD trucks (model years 2020–2026) who want a neat, durable way to improve ventilation, reduce sun glare, and keep rain and debris out when driving or parked. They suit drivers who prefer a factory-like accessory that installs quickly without drilling and that holds up to road and weather exposure. If you own a Regular Cab or Double Cab configuration, this kit will not fit—confirm your cab type before ordering.