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Brake pads are the friction components that press against the brake disc to slow a commercial vehicle. Because trucks and buses carry far greater loads, their brake pads work at much higher temperatures than passenger car pads, often above 370 degrees Celsius. This category covers replacement pads for the disc brake systems used across commercial vehicle models.
Applying the brakes forces the pads against the rotating disc, and the friction converts the vehicle momentum into heat. Pad material, surface area, and heat resistance are matched to the axle load the vehicle is rated for, which is why a pad suited to a lighter vehicle should not be substituted.
Pad life is often around 64,000 km but varies widely with load, terrain, and driving style. Common signs of wear include reduced braking response, grinding noise, vibration, or a wear indicator. Replacement thresholds differ by system: air disc brakes are generally replaced around 3.2 mm of remaining friction material, while hydraulic and drum systems should not fall below 1.6 mm. Uneven wear can point to a sticking caliper or an alignment issue and should be inspected rather than ignored.
The correct pad depends on the vehicle model, axle position, brake system type, and the disc it works with. Confirm the part against the vehicle specification before fitting.
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How do I know when truck brake pads need replacing?
Reduced braking response, unusual noise, or a wear indicator can signal worn pads. A qualified technician should inspect and measure the remaining friction material.
Are brake pads interchangeable between truck models?
Generally no. Pads are matched to a specific brake system and axle rating, so fitment should be confirmed against the vehicle specification.
What is the difference between brake pads and brake shoes?
Pads are used in disc brake systems and shoes in drum brake systems. Some vehicles use both, depending on the axle.
Should brake pads be replaced as a set?
Replacing pads per axle as a set is the common recommendation to keep braking balanced. Follow the manufacturer manual and a qualified technician judgment.