Hawk Performance HB921Y.670 LTS Rear Brake Pads 19-20 Silverado 1500 Sierra 1500

Vehicle Fitment

• 2019-2020 Chevrolet Silverado 1500 (WT, Custom, Custom Trail Boss, LT, LT Trail Boss, RST, LTZ, SSV, 2.7L I4 Turbo / 3.0L I6 Duramax Diesel / 4.3L V6 / 5.3L V8 / 6.2L V8, 2WD/4WD, Rear)
• 2019-2020 GMC Sierra 1500 (Base, SLE, Elevation, SLT, AT4, Denali, 2.7L I4 Turbo / 3.0L I6 Duramax Diesel / 4.3L V6 / 5.3L V8 / 6.2L V8, 2WD/4WD, Rear)

Fitment Notes

• Does NOT fit the Chevrolet Silverado 1500 High Country trim. The High Country uses a different rear brake configuration requiring a separate pad profile - verify your trim before ordering.
• This pad is position-specific: Rear axle only. Front axle applications require a separate Hawk part number (HB920Y.706).
• Pad thickness is 0.670 in (17.02mm). Verify your existing rear pad thickness before ordering to confirm compatibility.
• Compatible with iron/steel rotors only. Not compatible with carbon ceramic rotors.
• The 3.0L I6 Duramax Diesel engine was introduced mid-cycle during the 2019 model year production run. All 2019 Duramax-equipped Silverado 1500 and Sierra 1500 trucks are covered by this fitment.
• Fitment covers the T1-platform (first-generation) 2019-2020 Silverado 1500 and Sierra 1500 only. The updated 2021+ trucks revised brake specifications - verify year before ordering for 2021 model year vehicles.
• All cab configurations (Regular Cab, Double Cab, Crew Cab) and bed lengths are included within the confirmed trim and engine fitment above.

Features

• Hawk LTS (Light Truck and SUV) ferro-carbon compound - purpose-engineered by truck brake specialists for the unique stopping demands of full-size light-duty pickups, including loaded hauling, moderate towing, and daily commuting under the elevated mass of the T1 Silverado and Sierra 1500 platforms.
• Delivers 20-40% more stopping power than OEM replacement pads, with superior fade resistance under the sustained brake loads generated by heavy payloads and trailer weights on 1500-series trucks.
• Ferro-carbon friction material is drawn from fleet and military brake technology, providing high friction output and consistent performance across the full rear axle operating temperature range without requiring a warm-up period.
• Outlasts competing truck brake pads in pad and rotor wear - the LTS compound is engineered to protect rotors from premature wear while delivering longer service intervals than standard semi-metallic or organic replacement pads.
• Balanced initial bite and controlled dust output - the LTS compound avoids the excessive noise and heavy dust generation common to aggressive semi-metallic pads, maintaining the day-to-day usability expected in a full-size truck application.
• Ideal for light-to-moderate towing and loaded hauling - the compound's elevated heat tolerance and fade resistance make it effective in scenarios where factory OEM pads begin to experience fade or brake pull under sustained load.
• Compatible with all engine variants on the listed platforms - from the 2.7L Turbo four-cylinder through the 6.2L V8 and 3.0L Duramax diesel - ensuring consistent braking performance regardless of the truck's powertrain configuration.
• Manufactured by Hawk Performance, a recognized leader in high-performance and motorsport friction products, backed by a limited lifetime warranty.

Specifications

• Part Number: HB921Y.670
• Compound: LTS (Light Truck and SUV) - Y compound
• Pad Thickness: 0.670 in (17.02mm)
• FMSI Number: D2174-9419
• Position: Rear
• Friction Material: Ferro-Carbon
• Compatible Rotor Type: Iron/Steel only - not compatible with carbon ceramic rotors
• Compatible Platforms: 2019-2020 Chevrolet Silverado 1500 (T1), 2019-2020 GMC Sierra 1500 (T1)
• Best Use: Street / Daily Driving / Light-to-Moderate Towing and Hauling

Included Components

• 1x Set of Rear Brake Pads (both sides - driver and passenger)

Product Description

The Hawk Performance HB921Y.670 LTS rear brake pad is a purpose-built truck and SUV friction upgrade engineered for the rear axle of the 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 (T1 platform). Covering all standard trims and all available engine configurations - including the 2.7L Turbo four-cylinder, 4.3L V6, 5.3L V8, 6.2L V8, and 3.0L Duramax diesel - the LTS compound is Hawk's dedicated light truck formulation, developed using brake technology derived from fleet and military applications to address the specific braking demands that full-size half-ton pickups impose on their rear brake systems. Unlike passenger car compounds adapted for truck use, the LTS is purpose-formulated for the elevated mass, towing loads, and repeated heavy deceleration cycles that the Silverado and Sierra experience in everyday truck operation.

The LTS ferro-carbon compound delivers a meaningful improvement in stopping power over OEM pads - up to 20-40% more brake torque - while significantly improving fade resistance under sustained load conditions such as repeated downhill braking with a trailer or cargo payload. At the same time, the compound is calibrated to produce a balanced initial bite and controlled dust output, avoiding the harshness, noise, and excessive dust generation that often accompany semi-metallic truck pads. The result is a pad that makes the Silverado and Sierra stop shorter, resist fade more effectively, and protect rotors from premature wear, without compromising the quiet, predictable pedal feel that makes a full-size truck comfortable to drive daily.

Before ordering, confirm that your Silverado 1500 is not the High Country trim, as this trim uses a different rear caliper and pad configuration requiring a separate part number. This pad covers the rear axle only - the front axle application for the same 2019-2020 Silverado 1500 and Sierra 1500 is HB920Y.706. Pad thickness is 0.670 in (17.02mm); always verify this against your existing rear pads before installation. For 2021 model year trucks, brake specifications were updated - confirm fitment before ordering if your vehicle is a 2021 build.