Exterior Components› Car and Truck Covers

BAK

RX4S RAILS - 20-21 GM SILVERADO, S

$416.22

SKU: B002 RAILS-80133

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The BAK RAILS-80133 is a secure, hard roll-up tonneau cover made from aluminum with a matte black vinyl finish, offering enhanced weather protection and a low-profile design. It is designed for 2020-2026 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD trucks with a 6.8FT (approximately 82-inch) bed, excluding models with a 5th Wheel Package. Installation is a simple, no-drill, clamp-on process.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBAK
Part NumberB002 RAILS-80133

Videos

9-Month Update on My BAK Revolver X4s Tonneau Cover

9-Month Update on My BAK Revolver X4s Tonneau Cover
I Install & Review the BAK Revolver X4s Tonneau Cover on my 2024 GMC Sierra 2500 HD Pickup Truck

I Install & Review the BAK Revolver X4s Tonneau Cover on my 2024 GMC Sierra 2500 HD Pickup Truck
Bak Revolver X4S Six Month Review

Bak Revolver X4S Six Month Review

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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