Semi Truck Brake Pads: How to Identify, Compare and Source the Right Pads
October 8, 2026
On a semi truck, brake pads are used only at wheel ends with air disc brakes, usually the steer axle
On a semi truck, brake pads are used only at wheel ends with air disc brakes, usually the steer axle
Brake lining is the friction material on drum shoes and disc pads. Compare forms, materials, edge codes and FMCSA limits, plus a checklist for truck buyers.
Compare 4515, 4707 and 4709 brake shoes by brake type, rivet pattern, 20K/23K rating and fitment. Includes an RFQ checklist for fleet and parts buyers.
Here’s the short answer: a replacement brake lining can’t be “FMVSS 121 certified” on its own. FMVSS 121 covers the
A customer sends you an OE number and asks for a brake lining. At first, the decision looks simple: quote
Finding a truck brake lining supplier usually starts with a product list and an RFQ. The harder part comes when