Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Exterior Components› Car and Truck Covers
BAK
BAK RAIL ASSEMBLY SET MODEL 525
SKU: B002 RAILS-1126525
Moderate — 2–4 hours
Overview
Show original supplier description
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
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
| Brand | BAK |
| Part Number | B002 RAILS-1126525 |
Videos
BAKFlip MX4 TS Hard Folding Tonneau Cover w/ T-Slot Rails Fast Facts
How to Install BAKFlip MX4 Tonneau Cover on a 2024 GMC Sierra 1500
BAK FLIP MX4 2 year review- How has it held up?
Bak Revolver X4TS Tonneau Cover & Elevate Truck Bed Rack System
How to Install RealTruck BAKFlip MX4 TS Hard Folding Tonneau Cover w/ T-Slot Rails on GMC Sierra
How to Install BAKFlip MX4 Tonneau Cover
Is It Worth It? In-Depth Review of the BAK Revolver X4S Truck Bed Cover!
How to Install RealTruck BakFlip MX4 (Gen3) Hard Folding Tonneau Cover on a 2024 GMC Sierra
BAK Revolver X4ts (latest t-slot version)
Truxedo Elevate Rack System & BAKFLIP MX4 Hard Folding Truck Bed Cover
We’re here — turning wrenches, just like you.
Call us, follow along, or come say hi.
Buy with Confidence
Returns & Fitment
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.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy