BackRack · New
BackRack 14-18 Silverado Sierra Low Profile Tonneau Hardware Kit
MPN 40120 · Store SKU bck40120
Supplier stock checked 11/7/2026, 4:35:30 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Replaces Standard Railmount Hardware. Allows Toolbox to be installed flush against BackRack(TM). Eliminates gap between Toolbox and Backrack. Allows Toolbox to be installed without drilling into truck bed. Standard 21 inches. Optional 31 inches available. Tonneau Hardware Kit; Low Profile; 07-19 Silverado/Sierra Old Body Style Tonneau Cover Hardware Kit; Low Profile;
Manufacturer fitment & guides
Check 40120 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y