How often should you inspect the Brake Hose connecting the steel brake lines to the brake assemblies on Mazda 3?

Check the brake system, and the flexible hoses are the most important and delicate components that should be carefully examined with a light and a mirror under every six months, when the vehicle is raised, and the hoses are safely fastened on jackstands, inspecting them for cracks, chafing, leaks, blisters and other damages. In case of any defects, a new hose should be used. First wipe off all the dirt on the ends of the hose and then unscrew using a flare-nut wrench the tube nut that attaches the hose to the frame bracket, unscrew the clip and then attach the hose. Then unbolt or unclip any hose in place on the other brackets and unscrew the hose off of the caliper. Install the new brake hose screwing it to the caliper and screwing the tube nut fitting to the recommended torque without twisting the hose. Ensure that there is no contact between suspension or steering elements and the hose, and start bleeding the brake system. When changing the brake lines be sure that you use the right parts as do not use copper tubing in any part of the brake system and buy steel brake lines at a car dealership or auto parts store. Ready-made brake lines that have flared ends of tubes and fitted components are ready and may be bent to the necessary shapes with a tubing bender. Make sure that the new line is firmly seated in the brackets with ample clearance of moving or hot parts, inspect the master cylinder fluid level, and add fluid where needed and carefully test the brakes and return the vehicle to normal operation.

Genuine Mazda 3 Brake Hose

Brake Line

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19 Brake Hoses found

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Mazda 3 Brake Hose Part Number: BADE-43-810
$12.36 MSRP: $16.48
You Save: $4.12 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose, Flexible; Brake Hose
- 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 Brake Hose Part Number: BDTS-43-820A
$19.96 MSRP: $26.62
You Save: $6.66 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose(Left), Flexible; Brake Hose
- Position: Left
- Replaced by: BDTS-43-820B
- 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 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 Flex Hose Part Number: BJS7-43-980A
$21.75 MSRP: $29.00
You Save: $7.25 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Flexible; Flex Hose
- Position: Right
- 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 Brake Hose Part Number: BCKA-45-280
$22.30 MSRP: $29.74
You Save: $7.44 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pipe(Right), Brake-Front; Brake Hose
- Position: Right
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019 Mazda 3 | Base | 4 Cyl 2.5 L GAS
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Mazda 3 Flex Hose Part Number: BDTS-43-980B
$25.59 MSRP: $34.12
You Save: $8.53 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Right), Flexible-Front; Brake Hose, Flex Hose
- Position: Right
- Replaced by: BDTS-43-980C
- 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 Flex Hose Part Number: BJS7-43-990A
$27.69 MSRP: $36.92
You Save: $9.23 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Left), Flexible-Front; Flex Hose
- Position: Left
- 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 Flex Hose Part Number: BDTS-43-990B
$26.63 MSRP: $35.51
You Save: $8.88 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Left), Flexible-Front; Brake Hose, Flex Hose
- Position: Left
- Replaced by: BDTS-43-990C
- 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
View related parts
Mazda 3 Brake Hose Part Number: BDTS-43-810A
$28.85 MSRP: $38.47
You Save: $9.62 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Right), Flexible; Brake Hose
- Position: Right
- Replaced by: BDTS-43-810B
- 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 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 Flex Hose Part Number: B45A-43-980A
$32.43 MSRP: $43.25
You Save: $10.82 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Flexible; Flex Hose
- Position: Right
- 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 Flex Hose Part Number: B45A-43-990A
$32.43 MSRP: $43.25
You Save: $10.82 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Left), Flexible-Front; Flex Hose
- Position: Left
- 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 Flex Hose Part Number: BCKA-43-820
$36.09 MSRP: $48.13
You Save: $12.04 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Left), Flexible; Brake Hose, Flex Hose
- Position: Left
- 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 Flex Hose Part Number: BP4L-43-980E
$38.90 MSRP: $51.88
You Save: $12.98 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Flexible; Flex Hose
- Replaces: BP4L-43-980B, BP4L-43-980D
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2013 Mazda 3 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Flex Hose Part Number: BCKA-43-980B
$42.86 MSRP: $57.16
You Save: $14.30 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Right), Flexible-Front; Brake Hose, Flex Hose
- Replaced by: BCKA-43-980C
- Replaces: BCKA-43-980A
- 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
View related parts
Mazda 3 Flex Hose Part Number: BCKA-43-810
$45.41 MSRP: $60.56
You Save: $15.15 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Right), Flexible; Brake Hose, Flex Hose
- Position: Right
- 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
View related parts
Mazda 3 Flex Hose Part Number: BCKA-43-990B
$46.56 MSRP: $62.09
You Save: $15.53 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose(Left), Flexible-Front; Brake Hose, Flex Hose
- Position: Left
- Replaces: BCKA-43-990, BCKA-43-990A
- 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
View related parts
Mazda 3 Flex Hose Part Number: GML8-43-810
$54.11 MSRP: $72.17
You Save: $18.06 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Flexible; Brake Hose, Flex Hose
- 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
View related parts
Mazda 3 Flex Hose Part Number: GHP9-43-810B
$60.01 MSRP: $80.04
You Save: $20.03 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Flexible; Flex Hose
- Replaces: GHP9-43-810, GHP9-43-810A
- 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 Flex Hose Part Number: BP4K-43-980F
$77.93 MSRP: $103.92
You Save: $25.99 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Flex; Flex Hose
- Replaces: BPYK-43-980, BP4K-43-980D, BP4K-43-980B
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2013 Mazda 3 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Flex Hose Part Number: BJS7-43-810
$12.56 MSRP: $16.75
You Save: $4.19 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Flexible; Flex Hose
- 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

Mazda 3 Brake Hose

Mazda 3 Brake Hose is the stretchable piece that pushes pressurized brake fluid to all the calipers in order to allow the pads to squeeze the discs and decelerate the car. Each Brake Hose forms a closed hydraulic circuit between the hard chassis pipes and the moving suspension, designed to withstand heat as well as continuous motion at the wheel hub. The typical design has four hoses, one at each wheel, and, in a car with an inboard ABS module, one of the front lines can be lengthened slightly so it can reach the unit located at the radiator without kinking. Old fashioned factory hoses are based on reinforced rubber, a substance that works but tends to balloon out when the driver brakes hard, robbing the pressure that is supposed to go into the caliper and making the pedal feel soft. To restrict that growth, subsequent or improved designs replace it with stainless steel braided Teflon construction, with the inner tube wrapped in a tight metal weave that is less prone to swelling. Pedal response is improved and has more of that feel of confidence. This is the material selection that corresponds with Mazda performance objectives. Besides such a change in materials, the hoses are similar in terms of routing and terminal fittings, making the replacement performance-oriented instead of compatibility-oriented. Frequent checks are applied to make sure that all Brake Hoses are not cracked or bulged, as any leak in such a small component can lead to failure of the whole braking system in a Mazda 3. The Brake Hose provides drivers with the safety and brake feel that they need when driving a Mazda 3 by effectively transferring hydraulic force.

Looking for Brake Hose with proven quality? Choose OEM Brake Hose. 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 Hose Parts and Q&A

Flex Hose
BP4K-43-980F
Q: How often should you inspect the Brake Hose connecting the steel brake lines to the brake assemblies on Mazda 3?
A:
Check the brake system, and the flexible hoses are the most important and delicate components that should be carefully examined with a light and a mirror under every six months, when the vehicle is raised, and the hoses are safely fastened on jackstands, inspecting them for cracks, chafing, leaks, blisters and other damages. In case of any defects, a new hose should be used. First wipe off all the dirt on the ends of the hose and then unscrew using a flare-nut wrench the tube nut that attaches the hose to the frame bracket, unscrew the clip and then attach the hose. Then unbolt or unclip any hose in place on the other brackets and unscrew the hose off of the caliper. Install the new brake hose screwing it to the caliper and screwing the tube nut fitting to the recommended torque without twisting the hose. Ensure that there is no contact between suspension or steering elements and the hose, and start bleeding the brake system. When changing the brake lines be sure that you use the right parts as do not use copper tubing in any part of the brake system and buy steel brake lines at a car dealership or auto parts store. Ready-made brake lines that have flared ends of tubes and fitted components are ready and may be bent to the necessary shapes with a tubing bender. Make sure that the new line is firmly seated in the brackets with ample clearance of moving or hot parts, inspect the master cylinder fluid level, and add fluid where needed and carefully test the brakes and return the vehicle to normal operation.