Front Brake Disc for Mazda 3

This front brake disc with OE number BP4Y3325XB is a perfect match for Mazda 3 (2003-2014), Mazda 5 and Changan Mazda equivalent models, a reliable choice for aftermarket replacement.
We use high-density G3000 cast iron for excellent heat dissipation and anti-deformation performance. CNC precision machining ensures exact fitment, while 100% dynamic balance testing eliminates brake shake and squeal.
With our upgraded anti-corrosion coating, it stands up to salt spray and humid conditions. Every disc passes strict factory inspections, delivering consistent braking performance and long service life, ideal for global auto parts wholesalers.

The front brake disc for BP4Y3325XB is compatible with a wide range of cars, as follows:

There are different corresponding codes for the Front brake disc for Mazda 3 BP4Y3325XB

We don't just coat brake discs-we build long-lasting rust protection from the ground up. Every disc starts with deep blast cleaning and precision edge rounding to create a perfectly clean, smooth base.

We then apply electrophoretic deposition or zinc-flake coating, forming a seamless protective skin that locks out moisture and salt. We use real-time thickness monitoring to ensure even coverage and rock-solid adhesion. This tough finish easily survives long ocean voyages, humid warehouses and harsh road conditions, keeping your discs looking and performing like new for years.Most low-cost replacement brake discs available on the market are only coated with a thin layer of black paint. When exposed to the plum rain season in southern China or high salt-fog coastal roads in Australia, rust lumps form on the flange mounting surfaces after just half a month of vehicle parking. The Mazda 3 features a low ground clearance, making the brake discs prone to splashes of muddy water and de-icing salt that accelerate corrosion. Our BP4Y3325XB model adopts a three-layer anti-corrosion coating exclusively on the flange mounting positions, outer disc rims and outer walls of ventilation slots, while leaving the friction braking surfaces completely uncoated. This fundamental design eliminates common defects including coating peeling that sticks to brake pads and spongy brake pedal feel shortly after new disc installation.

The full anti-corrosion coating process follows standardized assembly line procedures strictly: automatic high-pressure sandblasting to remove contaminants and oxide scale → epoxy sealer primer base coat for enhanced adhesion → ceramic topcoat cured at a high temperature of 555℃. All finished batches undergo random sampling for the national standard 725-hour neutral NSS salt spray test, far exceeding the mainstream industry acceptance threshold of 300 hours. For vehicles operated on rainy island regions across Southeast Asia and coastal areas of Australia, the disc substrate remains free of extensive deep rust pits under regular three-year service.

Most vehicle owners are unaware that conventional black paint cannot withstand temperatures above 300℃; intense heat generated during braking carbonizes the paint, causing peeling and flaking. The topcoat of this product has passed cyclic thermal aging tests ranging from -33℃ to 485℃. Heat accumulated on disc surfaces during daily urban commutes or repeated braking on suburban mountain roads will not damage the protective coating, effectively cutting down maintenance issues such as seized wheel bearings caused by rust and unexplained abnormal noises.

Our purpose-built machining workshop houses state-of-the-art 5-axis CNC centers and fully automated grinding cells. We don't rush things-every brake disc goes through rough turning, precision boring and ultra-fine surface finishing. We enforce strict in-process dimensional checks at every station, with 100% dynamic balancing for every single unit. No shortcuts, no compromises. Our lean production system delivers consistent quality batch after batch, so you can always count on perfect fitment and on-time delivery for all your bulk orders.

Regular spot inventory of Front brake disc for Mazda 3 BP4Y3325XB is stored at the factory warehouse in Laizhou, Shandong. Small-batch scattered orders can be allocated from the Guangdong warehouse for fast dispatch. Standard production lead time ranges from 32 to 42 working days upon order confirmation. For full-container bulk orders shipped to Southeast Asia, shipping via COSCO Shipping with loading at Qingdao Port is recommended, featuring the most cost-effective freight rates for routes to Malaysia and Indonesia. Customers with urgent restocking demands may apply for expedited air freight, with all air shipping fees borne by the buyer.

All orders allow customers to appoint their preferred freight forwarders independently. Customers shall submit complete contact details of the designated forwarder within 72 hours after order finalization, and our team will coordinate with the warehouse to arrange space booking.

An industry common practice: most Southeast Asian auto parts distributors place full-container orders starting at 1,000 pieces for item 43512B4010. For bulk orders, we can arrange priority production scheduling at the factory to cut the production cycle by 7 working days.

Q1: Is the brake disc with OE number 43512B4010 exclusively fitted for Daihatsu Terios J1? Can it be interchangeably installed on compact SUVs of other brands?
A: This is a front brake disc tailor-made for the first-generation Terios J1 (1.3L naturally aspirated engine). Its chassis flange and bolt pitch are manufactured strictly in line with original Daihatsu engineering drawings, so it cannot be used on Toyota or Suzuki K-cars with identical exterior dimensions. Forcible installation will result in misplaced wheel hub holes and unfixed brake calipers; cross-model refitting and mixed usage are not recommended. The matching OEM-recommended brake pad OE code is 04495-B4010. It is advised to replace two brake discs on the same axle as a pair and install matching new brake pads simultaneously.

Q2: What is the tightening torque for wheel nuts when fitting 43512B4010 on a brand-new Terios? How should the running-in mileage of new brake discs be controlled?
A: Per the official Daihatsu service manual, the standard tightening torque for wheel studs is 98Nm. Tighten the nuts diagonally in three separate steps to prevent flange deformation which causes disc wobble and judder during braking. A 500-kilometer running-in period is required after installation. Avoid emergency braking and sustained downhill braking under full load within the first 300km. Minor faint scraping noises at low speeds during break-in are normal from brake pad bedding and will disappear once running-in is complete. DOT3-spec OEM brake fluid is recommended for service.

Q3: For vehicles permanently operated along coastal areas in Malaysia, how frequently should thickness and run-out inspections be carried out on the 43512B4010 brake disc? Is immediate replacement mandatory once rust pits form on the disc surface?
A: For regular urban commuting, inspections are conducted alongside routine maintenance every 20,000km. For coastal high-salt-air environments combined with frequent heavy-load braking during rural cargo haulage, inspection intervals are shortened to every 11,000km. Light surface rust does not require replacement and can be worn away after three consecutive medium-to-heavy brake applications. Immediate disc replacement is compulsory only when rust pits exceed 1mm in depth, measured disc thickness drops below the legal minimum limit of 17.5mm, or lateral run-out surpasses 0.05mm. For maintenance planning, prepare replacement stock in advance once measured disc thickness reduces to 18.2mm.

Q4: When the fully loaded Terios suffers spongy brake feel during short off-road mountain trips, is thermal deformation of the 43512B4010 brake disc the most probable cause?
A: Most instances of brake fade and spongy brake pedals stem from issues unrelated to the brake disc. The upgraded GG25 cast iron material of this disc delivers sufficient heat dissipation to meet original OEM full-load operating requirements for the Terios. Prioritize troubleshooting stuck caliper guide pins, water-contaminated or degraded DOT3 brake fluid, and excessively worn brake pads. Replacement is only necessary if irregular deep grooves deeper than 0.5mm develop across the disc surface, indicating permanent disc damage.

We're excited to announce our latest production expansion! We've added two new CNC machining lines dedicated to electric vehicle brake discs.
These new lines feature upgraded precision control systems and integrated dynamic balance testing stations. We've also expanded our OE model database to cover over 350 new vehicle models released in 2025-2026.

This means we can now handle even larger bulk orders with faster lead times. All new production lines follow our strict quality standards, ensuring consistent performance and perfect fitment for every brake disc we ship.

In the past two years, Southeast Asian countries have gradually tightened their motor vehicle inspection regulations. Malaysia and Indonesia impose stringent annual inspection controls on the rust level and remaining thickness of brake discs. New regulatory rules aligned with Euro 7 standards have indirectly driven upgraded anti-rust requirements for replacement brake parts of Japanese K-cars. Low-cost ordinary brake discs without anti-rust coatings are being phased out by downstream markets, while long-lasting high-temperature painted brake discs have become the standard procurement option for auto repair shops.

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