--- title: "2019-2025 Ram 1500 Brake Pads and Rotor Sizes" description: "Brake pad references and rotor diameters for the 2019-2025 Ram 1500, front and rear. Front rotors measure 378 mm. Includes electronic parking brake service notes where they apply." url: "https://whichcarparts.com/cars/ram/1500/2019-2025/brakes" updated: "2026-08-20" --- # 2019-2025 Ram 1500 Brake Pad and Rotor Specifications Brake pad references and rotor diameters for the 2019-2025 Ram 1500, front and rear. Front rotors measure 378 mm. Includes electronic parking brake service notes where they apply. ## 2019-2025 Ram 1500 brake specifications (High confidence) | Spec | Value | | --- | --- | | Front rotor diameter | 378 mm | | Rear rotor diameter | 375 mm | Note: 14.9-in vented front / 14.8-in rear, much larger than DS. Electric parking brake: put the rear calipers in service mode (or use a scan tool) before retracting pistons for pad changes. ## Which Ram 1500 model years does this cover? These brakes specifications apply to every Ram 1500 built from 2019 through 2025, the DT (5th generation), full-size half-ton pickup (quad, crew cab). Nothing in this specification changes between those model years. - [2019 1500](https://whichcarparts.com/cars/ram/1500/2019) - [2020 1500](https://whichcarparts.com/cars/ram/1500/2020) - [2021 1500](https://whichcarparts.com/cars/ram/1500/2021) - [2022 1500](https://whichcarparts.com/cars/ram/1500/2022) - [2023 1500](https://whichcarparts.com/cars/ram/1500/2023) - [2024 1500](https://whichcarparts.com/cars/ram/1500/2024) - [2025 1500](https://whichcarparts.com/cars/ram/1500/2025) ## What changed during the 2019-2025 Ram 1500 | Years | What changed | | --- | --- | | 2019 | DT launch: eTorque 48V mild hybrid on 3.6L (std) and 5.7L (opt); wheels change to 6x139.7. DS 'Classic' (5-lug) sold alongside through 2024 | | 2020 | Gen-3 3.0L EcoDiesel (260 hp/480 lb-ft) added | | 2021 | TRX (702-hp supercharged 6.2L) added; Limited Longhorn and TRX-inspired styling packages expand | | 2023 | EcoDiesel discontinued (last trucks built January 2023) | | 2024 | Final year for TRX and for the 1500 Classic (DS) | | 2025 | Mid-cycle refresh: 5.7L HEMI dropped, 3.0L Hurricane SST I6 (SO 420 hp / HO 540 hp incl. RHO) replaces it; 3.6L eTorque continues as base; Tungsten flagship added. (HEMI returns for 2026 after customer backlash.) | ## 2019-2025 Ram 1500 brakes: common questions ### What size are the brake rotors on a 2019-2025 Ram 1500? 378 mm front and 375 mm rear. Measure before ordering if the vehicle may have a towing or performance brake package. ### Anything special about servicing the brakes on a 2019-2025 Ram 1500? 14.9-in vented front / 14.8-in rear, much larger than DS. Electric parking brake: put the rear calipers in service mode (or use a scan tool) before retracting pistons for pad changes.. ## Sources - [FCA media, 2021 Ram 1500 TRX specifications](https://s3.amazonaws.com/chryslermedia.iconicweb.com/mediasite/specs/2021_RAM_1500_TRX_Specificationsncds40e91jnt64taolkbbpi9eq.pdf) - [NHTSA recall 22V-904, tailgate striker (Part 573 report, FCA ZB8)](https://static.nhtsa.gov/odi/rcl/2022/RCLRPT-22V904-2829.PDF) - [FCA Safety Recall V17 / NHTSA 19V-142, 48-volt ground cable fastener (oemdtc)](https://chrysler.oemdtc.com/1318/safety-recall-v17-nhtsa-19v-142-48-volt-ground-cable-fastener-2019-ram-1500/) - [Diesel Hub, 3.0L EcoDiesel oil change guide (gen-3: 8.5 qt, 68507598AA)](https://www.dieselhub.com/maintenance/ecodiesel-oil-change-guide.html) - [fueleconomy.gov, 2022 Ram 1500 EPA ratings](https://www.fueleconomy.gov/feg/bymodel/2022_Ram_1500.shtml) - [fueleconomy.gov, 2025 Ram 1500 EPA ratings (Hurricane SO/HO)](https://www.fueleconomy.gov/feg/bymodel/2025_Ram_1500.shtml) - [SD Wheel, 5th-gen Ram 1500 fitment guide (6x139.7, 130 ft-lb)](https://www.sdwheel.com/blogs/1278/5th-gen-ram-fitment-guide) - [Mopar eStore, 68414387AA DT engine air filter](https://www.moparoriginalparts.com/part-ymm/2024-ram-1500-dt-engine-air-filter.html) - [Mopar eStore, 53011248AB TRX 6.2L air filter](https://store.mopar.com/oem-parts/mopar-air-filter-53011248ab) - [Mopar eStore, 68683357AA Hurricane HO oil filter (supersedes 68466307AB)](https://store.mopar.com/oem-parts/mopar-engine-oil-filter-68683357aa) - [Interstate Batteries, Ram 1500 H7/94R fitment](https://www.interstatebatteries.com/vehicle/dodge/dodge-ram-1500) - [Mopar owner info, oil life reset procedure (accelerator method)](https://vehicleinfo.mopar.com/assets/publications/en-us/Ram/2022/2500_3500/om_html/GUID-129DF5D9-F994-45FC-9B5E-504D7FE75BC6.html) - [Blauparts, Ram 1500 TRX 0W-40 (MS-12633) oil change kit](https://www.blauparts.com/ram-1500-trx-oil-change-kit-62l-v8-0w40-ravenol.html) ## Other Ram 1500 generations - [2012-2018 Ram 1500 brakes](https://whichcarparts.com/cars/ram/1500/2012-2018/brakes) Or [compare all generations](https://whichcarparts.com/cars/ram/1500/brakes). ## More for the 2019-2025 Ram 1500 - [Oil & filter](https://whichcarparts.com/cars/ram/1500/2019-2025/oil) - [Battery](https://whichcarparts.com/cars/ram/1500/2019-2025/battery) - [Tires & wheels](https://whichcarparts.com/cars/ram/1500/2019-2025/tires) - [Wiper blades](https://whichcarparts.com/cars/ram/1500/2019-2025/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/ram/1500/2019-2025/filters) - [Bulbs](https://whichcarparts.com/cars/ram/1500/2019-2025/bulbs) - [Fluids](https://whichcarparts.com/cars/ram/1500/2019-2025/fluids) - [Service schedule](https://whichcarparts.com/cars/ram/1500/2019-2025/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/ram/1500/2019-2025/common-problems) - [Oil light reset](https://whichcarparts.com/cars/ram/1500/2019-2025/oil-reset) - [Key fob battery](https://whichcarparts.com/cars/ram/1500/2019-2025/key-fob-battery) - [Specs](https://whichcarparts.com/cars/ram/1500/2019-2025/specs) Specifications vary with engine option, production date, and market.