How to properly inspect and service brake discs on Mazda 3?

Unscrew the lug nuts of the wheels, lift the car and place it on jackstands. Take out the brake caliper without taking off the brake hose; take off the caliper bolts and suspend the caliper somewhere off with wire item. You visually examine the disc surface to find any kind of score marks or other damage; light scratches and shallow grooves are safe after use but deep scoring would make you have to remove the disc and refinish it with an automotive machine shop. Examine both sides of the disc: and when pulsating on braking, suspect disc run out. To test disc runout, screw in the lug nuts backwards and mount a dial indicator approximately half an inch away on the outer side of the disc and set the indicator to zero and then turn the disc. The reading of the indicator must not be more than the stated allowable runout limit otherwise, refinishing should be done to the disc. Despite the dial indication, discs are to be resurfaced so that they have a smooth finish and an excellent flat surface, with no brake pedal pulsation or other uncomfortable symptoms. In case it is not resurfacing, then wipe the glaze off the surface using emery cloth or sandpaper in a swirling motion. It is important that the disc should not be machined to less than the required minimum thickness, cast or stamped into the inner of the disc; check the disc thickness with a micrometer. Unscrew the bolts and the bracket which hold the caliper mounted together and unscrew lug nuts (they were reattached during runout check), and the disc. When the disc is off, wipe the back side of the center part touching the wheel hub and remove all rust or dirt on the hub face. Squeeze small dots of a high-temperature anti-seize compound all around the circumference of the hub and the raised center area. Install the disc in place, attaching the caliper mounting bracket and caliper, loosening the bolts to the desired values of torque. Fit the wheel, and pull the vehicle down to the ground and screw the lug nuts to the required torque. Press the brake pedal several times until the brake pads touch the disc; there will not be any bleeding unless the brake hose was removed off the caliper. Be sure that the brakes are working before taking out the vehicle, and when new or old discs are fitted to the rear, be sure the parking brake is working, and also that it is adjusted properly, where necessary. Lastly, do not drive without making sure that the brakes are fine.

Genuine Mazda 3 Brake Disc

Disc Rotor

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16 Brake Discs found

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Mazda 3 Rotor Part Number: B45A-33-251A
$88.65 MSRP: $118.22
You Save: $29.57 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Plate, Disc
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: B45G-26-251B
$88.65 MSRP: $118.22
You Save: $29.57 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Plate, Disc; Rotor
- Replaces: B45G-26-251A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2024 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Grand Touring, i Grand Touring, I Sport, i SV, I Touring, Preferred, Premium, s Grand Touring, s Touring, Select, Select Sport, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: BDTS-26-251
$90.19 MSRP: $120.27
You Save: $30.08 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Plate, Disc; Rotor
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: BDTS-33-251
$91.34 MSRP: $121.81
You Save: $30.47 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plate, Disc; Rotor
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: BDWK-33-251
$99.60 MSRP: $132.82
You Save: $33.22 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plate, Disc; Rotor
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: BJS7-33-251A
$88.65 MSRP: $118.22
You Save: $29.57 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plate, Disc
- Replaced by: B45A-33-251A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: BJT2-33-251A
$117.03 MSRP: $156.06
You Save: $39.03 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Plate, Disc; Rotor
- Replaced by: B45G-33-251A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2017-2018 Mazda 3 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: C24Y-26-251D
$95.51 MSRP: $127.37
You Save: $31.86 (26%)
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Product Specifications
- Other Name: Plate, Disc
- Replaces: BP4Y-26-251B, BP4Y-26-251D, BP4Y-26-251C, C24Y-26-251C, C24Y-26-251B
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2013 Mazda 3 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: C25Y-26-251C
$95.80 MSRP: $127.76
You Save: $31.96 (26%)
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Product Specifications
- Other Name: Plate, Disc
- Replaces: BP6Y-26-251D, BP6Y-26-251E, C25Y-26-251B, C25Y-26-251A, BP6Y-26-251C, BP6Y-26-251B
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2013 Mazda 3 | Mazdaspeed, S, SP23 | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: C24Y-33-25XE
$96.26 MSRP: $128.37
You Save: $32.11 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Plate, Disc; Rotor
- Replaces: C24Y-33-25XD
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2013 Mazda 3 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: BCKA-33-251
$96.41 MSRP: $128.57
You Save: $32.16 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plate, Disc; Rotor
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: BEET-33-251
$96.41 MSRP: $128.57
You Save: $32.16 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plate, Disc; Rotor
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: C26Y-33-25XD
$96.54 MSRP: $128.74
You Save: $32.20 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plate, Disc; Rotor
- Replaces: C26Y-33-25XC
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2013 Mazda 3 | Mazdaspeed, S, SP23 | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Rotor Part Number: B37F-33-25XA
$97.85 MSRP: $130.50
You Save: $32.65 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Brake Disc, Front
- Replaces: B37F-33-25X
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2013 Mazda 3 | Mazdaspeed, S | 4 Cyl 2.3 L GAS
View related parts
Mazda 3 Rotor Part Number: BJS7-26-251B
$88.65 MSRP: $118.22
You Save: $29.57 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plate, Disc
- Replaced by: B45G-26-251B
- Replaces: BJS7-26-251A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Rotor Part Number: B45G-33-251A
$117.03 MSRP: $156.06
You Save: $39.03 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plate, Disc
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS

Mazda 3 Brake Disc

Looking for Brake Disc with proven quality? Choose OEM Brake Disc. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda 3 parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine 3 part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.

Mazda 3 Brake Disc Parts and Q&A

Rotor
C24Y-26-251D
Q: How to properly inspect and service brake discs on Mazda 3?
A:
Unscrew the lug nuts of the wheels, lift the car and place it on jackstands. Take out the Brake Caliper without taking off the Brake Hose; take off the caliper bolts and suspend the caliper somewhere off with wire item. You visually examine the disc surface to find any kind of score marks or other damage; light scratches and shallow grooves are safe after use but deep scoring would make you have to remove the disc and refinish it with an automotive machine shop. Examine both sides of the disc: and when pulsating on braking, suspect disc run out. To test disc runout, screw in the lug nuts backwards and mount a dial indicator approximately half an inch away on the outer side of the disc and set the indicator to zero and then turn the disc. The reading of the indicator must not be more than the stated allowable runout limit otherwise, refinishing should be done to the disc. Despite the dial indication, discs are to be resurfaced so that they have a smooth finish and an excellent flat surface, with no brake pedal pulsation or other uncomfortable symptoms. In case it is not resurfacing, then wipe the glaze off the surface using emery cloth or sandpaper in a swirling motion. It is important that the disc should not be machined to less than the required minimum thickness, cast or stamped into the inner of the disc; check the disc thickness with a micrometer. Unscrew the bolts and the bracket which hold the caliper mounted together and unscrew lug nuts (they were reattached during runout check), and the disc. When the disc is off, wipe the back side of the center part touching the wheel hub and remove all rust or dirt on the hub face. Squeeze small dots of a high-temperature anti-seize compound all around the circumference of the hub and the raised center area. Install the disc in place, attaching the caliper mounting bracket and caliper, loosening the bolts to the desired values of torque. Fit the wheel, and pull the vehicle down to the ground and screw the lug nuts to the required torque. Press the brake pedal several times until the brake pads touch the disc; there will not be any bleeding unless the brake hose was removed off the caliper. Be sure that the brakes are working before taking out the vehicle, and when new or old discs are fitted to the rear, be sure the parking brake is working, and also that it is adjusted properly, where necessary. Lastly, do not drive without making sure that the brakes are fine.