EBC RK7739 OE Premium Solid Rear Rotors for 2014-2018 Mazda 3 2.0L Sedan

Vehicle Fitment

• 2014-2018 Mazda 3 Sedan (BM / BN generation), 2.0L SKYACTIV-G I4, FWD - all trims with 264mm rear disc brakes
• 2014-2018 Mazda 3 Hatchback (BM / BN generation), 2.0L SKYACTIV-G I4, FWD - all trims with 264mm rear disc brakes

Fitment Notes

• Fits 2.0L SKYACTIV-G engine models only - the Mazda 3 2.5L SKYACTIV-G (s Touring, s Grand Touring) uses a larger 265mm rear disc that is not compatible with this rotor
• Verify rear rotor diameter before ordering: 264mm (10.39 in.) for 2.0L models; 265mm (10.43 in.) for 2.5L models - these are different rotors with different FMSI pad designations
• The 2018 Mazda 3 (BN mid-cycle refresh) transitioned to an electronic parking brake on some trim levels mid-production - vehicles with the electronic parking brake require a special caliper piston reset procedure before rotor installation; confirm your parking brake type before ordering
• Does not fit the Mazdaspeed 3 - the Mazdaspeed platform uses a completely different front-heavy performance brake system
• Does not fit the fourth-generation Mazda 3 (BP, 2019+) - the 2019+ Mazda 3 uses a different rear brake geometry and is not compatible
• Sold as a pair (2x rotors per set); always replace both rear rotors simultaneously

Features

• Made from premium G3000 specification gray cast iron - the same OEM-grade material used in Mazda factory production for proven thermal stability, low noise, and wear resistance on the SKYACTIV-G FWD compact platform
• Every rotor is individually runout-inspected to tolerances under 0.05mm at the factory - guaranteeing zero distortion and a vibration-free pedal from the first stop
• Geomet-style corrosion-resistant coating applied immediately after machining - prevents pre-installation surface rust without requiring any cleaning, prep, or removal steps before fitting
• Solid rear disc construction precisely matches the OEM Mazda BM/BN rear disc design - direct bolt-on replacement with no caliper, bracket, or hardware modifications required on compatible models
• Higher carbon and silicone content iron formulation resists brake shudder, heat cracking, and the high-frequency vibrations that cause squealing - meeting the refined NVH standards of the Mazda 3's premium compact positioning
• Geomet coating disappears naturally from the pad contact zone within the first 10-20 stops while protecting the hat and non-swept surfaces for the full service life of the rotor
• Over 80% of EBC automotive rotors are British-manufactured, machined to the same G3000 iron spec used in original Mazda factory production
• Compatible with EBC Ultimax and Greenstuff brake pads (FMSI D2042) for a fully matched, OE-equivalent rear braking system

Specifications

• Position: Rear
• Rotor Construction: Solid 1-Piece
• Rotor Style: Plain (smooth surface)
• Rotor Diameter: 264mm (10.39 in.)
• Rotor Thickness: 9mm
• Hat Height: 39.2mm
• Bolt Holes: 5
• Center Hole Diameter: 68mm
• FMSI Pad Number: D2042
• Material: G3000 Gray Cast Iron
• Coating: Geomet-Style Anti-Rust Surface Coating
• Drivetrain Compatibility: FWD
• Engine Application: 2.0L SKYACTIV-G I4 only

Included Components

• 2x EBC RK7739 Solid Rear Brake Rotors (one per wheel)

Product Description

The EBC RK7739 is a premium OE-replacement solid rear brake rotor engineered specifically for the fourth-generation Mazda 3 (BM/BN chassis, 2014-2018) equipped with the 2.0L SKYACTIV-G engine. The BM/BN Mazda 3 uses two distinct rear rotor sizes depending on engine specification - the 264mm solid disc for 2.0L models and the 265mm disc for 2.5L models - and the RK7739 is matched exclusively to the 2.0L application. Each rotor is precision-machined from G3000 specification gray cast iron and individually runout-inspected to tolerances under 0.05mm, delivering a direct bolt-on replacement with zero distortion and no modifications to the factory rear caliper hardware.

The Mazda 3 BM/BN's rear brakes play a supporting role in the vehicle's well-regarded chassis dynamics, and consistent, noise-free rear disc engagement is important to maintaining the refined pedal feel these cars are known for. EBC's higher-carbon G3000 iron formulation resists the micro-shudder, heat cracking, and surface scoring that economy replacements commonly develop - particularly on rear solid discs that operate at lower temperatures than the front. EBC's Geomet-style corrosion-resistant coating is applied at the casting plant immediately after machining, protecting the iron against transit rust without any pre-installation prep. It fades from the pad contact zone within the first 10-20 stops while remaining on the hat and perimeter for the rotor's service life.

Before ordering, confirm your Mazda 3's engine displacement. The 2.0L and 2.5L models share a nearly identical rear rotor diameter but are dimensionally different and not interchangeable - ordering the wrong spec will result in a misfit. Owners of 2018 BN models should also confirm whether their vehicle has the mechanical or electronic parking brake, as the electronic parking brake caliper requires a specific reset procedure before rotor installation. The RK7739 does not fit the 2019+ BP-generation Mazda 3 or any Mazdaspeed 3 variant. EBC recommends pairing the RK7739 with Ultimax or Greenstuff pads (FMSI D2042) and a 500-mile progressive break-in for full pad-to-rotor seating. Rotors are sold as a pair covering both rear corners.