
Over time, internal rubber hoses and caliper seals degrade due to exposure to environmental elements, causing pressure loss, uneven brake response, and potential fluid leaks that compromise vehicle safety. Replacing worn components with high-quality OE replacement calipers restores hydraulic integrity, ensuring immediate and reliable braking performance under severe duty conditions. These calipers are engineered to withstand the demanding environments faced by commercial fleets, providing structural durability and consistent operation.
The DBA Street Series OE replacement brake caliper for Mazda 3 models from 2014 to 2018 offers a direct-fit solution that eliminates the need for rebuilds or core exchanges. Designed with precision casting and robust materials, these calipers deliver optimal clamping force and heat resistance, making them suitable for heavy-duty applications where reliability is critical. The caliper’s construction ensures compatibility with standard brake pads, simplifying installation and maintenance.
- Overall Length: 14.2-inch size
- Fitting / Outlet Size: 10mm INV thread
- Application: Commercial-Grade / Heavy-Duty Fleet / Passenger Automotive Cross-Over
Part Numbers
- DBAC1397
Expert Installation & Field Note
Our shop experience specializing in heavy-duty brakes since 1985 emphasizes the importance of correct hose routing. When installing these calipers, ensure hoses are routed to avoid chassis chaffing and allow full steering lock without twisting the hose excessively. Verify that line mounting brackets on heavy commercial frames are secure and free of damage to prevent line movement that could lead to failure or leaks. Proper routing and bracket inspection are essential for long-term reliability in fleet operations.
Before ordering, physically inspect your existing brake line length, flare fittings, and banjo threads. Mid-year production changes and varying wheelbase configurations can alter line routing on fleet and utility vehicles. Confirm measurements and fittings to ensure proper fitment and avoid installation delays.
Features:
- Direct OE replacement caliper for Mazda 3 models 2014-2018
- Constructed from high-strength cast iron for durability
- Designed for seamless installation without rebuilding or core exchange
- Robust 10mm inlet thread for reliable hydraulic connection
- Heavy-duty construction suitable for commercial fleet use



