--- title: "Ram 1500 Brake Pads and Rotor Sizes" description: "How the Ram 1500 brakes specification changed from 2012 to 2025, compared generation by generation. Brake pad references and rotor diameters for the 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/brakes" updated: "2026-08-20" --- # Ram 1500 Brake Pad and Rotor Specifications The specification is not the same across every year we cover, the table below shows exactly where it changes. ## Has the Ram 1500 brakes specification changed by year? | Model years | Front rotor | Rear rotor | Front pads | | --- | --- | --- | --- | | [2019-2025](https://whichcarparts.com/cars/ram/1500/2019-2025/brakes) | 378 mm | 375 mm | N/A | | [2012-2018](https://whichcarparts.com/cars/ram/1500/2012-2018/brakes) | 336 mm | 350 mm | N/A | ## Full specifications by generation The brakes on a Ram 1500 is set by its generation, not its model year, so each generation has one page carrying the complete figures, part numbers and fitment notes for every year it covers. - [2019-2025 Ram 1500 Brakes](https://whichcarparts.com/cars/ram/1500/2019-2025/brakes) - [2012-2018 Ram 1500 Brakes](https://whichcarparts.com/cars/ram/1500/2012-2018/brakes) ## Ram 1500 brakes: common questions ### What size are the brake rotors on a 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 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) ## Find your exact 1500 - [2025](https://whichcarparts.com/cars/ram/1500/2025) - [2024](https://whichcarparts.com/cars/ram/1500/2024) - [2023](https://whichcarparts.com/cars/ram/1500/2023) - [2022](https://whichcarparts.com/cars/ram/1500/2022) - [2021](https://whichcarparts.com/cars/ram/1500/2021) - [2020](https://whichcarparts.com/cars/ram/1500/2020) - [2019](https://whichcarparts.com/cars/ram/1500/2019) - [2018](https://whichcarparts.com/cars/ram/1500/2018) - [2017](https://whichcarparts.com/cars/ram/1500/2017) - [2016](https://whichcarparts.com/cars/ram/1500/2016) - [2015](https://whichcarparts.com/cars/ram/1500/2015) - [2014](https://whichcarparts.com/cars/ram/1500/2014) - [2013](https://whichcarparts.com/cars/ram/1500/2013) - [2012](https://whichcarparts.com/cars/ram/1500/2012) More Ram 1500 guides: - [Oil & filter](https://whichcarparts.com/cars/ram/1500/oil) - [Battery](https://whichcarparts.com/cars/ram/1500/battery) - [Tires & wheels](https://whichcarparts.com/cars/ram/1500/tires) - [Wiper blades](https://whichcarparts.com/cars/ram/1500/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/ram/1500/filters) - [Bulbs](https://whichcarparts.com/cars/ram/1500/bulbs) - [Fluids](https://whichcarparts.com/cars/ram/1500/fluids) - [Service schedule](https://whichcarparts.com/cars/ram/1500/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/ram/1500/common-problems) - [Oil light reset](https://whichcarparts.com/cars/ram/1500/oil-reset) - [Key fob battery](https://whichcarparts.com/cars/ram/1500/key-fob-battery) - [Specs](https://whichcarparts.com/cars/ram/1500/specs) Specifications vary with engine option, production date, and market.