Product Overview
This high-precision Front Right ABS Wheel Speed Sensor is a professional-grade replacement specifically engineered for the Mazda 323 and Mazda Protege (1999–2003). It is a direct-fit unit for original equipment (OE) part number B25D-43-70XG, ensuring that the vehicle's anti-lock braking and electronic stability systems receive accurate, real-time data.
OE Part Numbers: Direct replacement for B25D-43-70XG, B25D4370XG, and ALS1131.
Vehicle Application: Precision-matched for the Mazda 323 and Mazda Protege (including Protege5) for model years 1999, 2000, 2001, 2002, and 2003.
Core Technology: Optimized for fast response and high signal accuracy, which are essential for maintaining traction and safety under diverse driving conditions.
Technical Specifications
Harness & Connector: Features a 35-inch (889 mm) heavy-duty harness with a single rectangular female connector.
Terminals: Utilizes 2 male blade-type terminals for a secure, moisture-resistant electrical connection.
Mounting: Designed for wheel mounting via a stable 2-bolt hole configuration to ensure precise sensor alignment.
Durability: Built with a high-strength housing designed for a low failure rate and stable performance in harsh under-vehicle environments.
OE Numbers
Wholesale & Manufacturing Advantages
Certified Excellence: Manufactured in facilities holding IATF 16949, ISO 9001, ISO 14001, and CE certifications, meeting global automotive standards.
Massive Production Scale: An annual capacity of 5 million units guarantees a stable and scalable supply chain for global distributors.
Full Customization: Supports comprehensive OEM/ODM services, including specific material upgrades and customized branding or packaging (Brand, Neutral, or Private Label).
Service Commitment: Backed by an industry-leading 36-month warranty with flexible lead times of 7–60 days and a Minimum Order Quantity (MOQ) of 100 units.
The ABS Wheel Speed Sensor for Mazda Protege is the ideal choice for wholesalers looking for a reliable, long-lasting safety component for the Mazda 323/Protege platform.
Would you like me to pull together a volume-based shipping quote (CBM) for a 100
Mazda ABS Sensor solutions: Customization, global sourcing, and OEM quality
Complete ABS Sensor Solutions for Global Markets
Backed by a vast network of vetted manufacturers in China, Elecdura helps global buyers source ABS sensors with brand-level quality at unbeatable factory pricing.
From design optimization to packaging customization, from bulk stock supply to certification support — we are the sourcing partner B2B buyers trust.
At Elecdura, we offer an extensive range of ABS sensors to fit a wide variety of vehicles, including passenger cars, commercial trucks, and specialty applications.
With dozens of connector types, cable lengths, sensor heads, and mounting structures, we ensure high compatibility with both OEM and aftermarket platforms. For large-volume or long-term customers, we provide fully customizable solutions based on your specifications or reference samples:
- Cable length & plug type customization
- Sensor housing & material adjustments
- Custom branding (logo, part number, label)
- Tailored packaging for retail or bulk
Whether you require a one-to-one replacement or a private-label solution, our engineering and production teams are ready to support you from development to delivery.
Mazda ABS Sensor: Engineered with globally trusted component partners
Behind every stable signal and durable sensor lies a foundation of trusted materials. At Elecdura, we only work with globally recognized suppliers to ensure every ABS sensor delivers the performance, longevity, and safety our customers demand.
Our key component partners include:
Infineon – High-reliability semiconductor chips
Melexis – Advanced automotive sensing ICs
Allegro Microsystems – Magnetic field sensing solutions
FPK / Semiment – Core electronics and magnetic circuit components
LEONI – Premium automotive-grade cables
ELEKTRISOLA – Precision copper wire & winding materials
These partnerships help us deliver consistent product quality across batches, reduce field failure rates, and meet OE-level reliability standards.
Elecdura ABS Sensor | IATF Certified, Global Compliance Support
At Elecdura, quality is engineered and certified. Our production facilities operate under the IATF 16949 quality management system and comply with ISO 14001 for environmental and occupational health standards.Whether you need to meet EMC, REACH, RoHS, or other regional regulations, our engineering and compliance teams are experienced in supporting custom certification requirements across Europe, North America, South America, and Asia-Pacific.We have supported OEM projects and aftermarket clients in obtaining certifications and test reports for various target markets, ensuring smooth market entry and compliance.Let us know your local requirements — we'll make sure your ABS sensors are ready.
Mazda ABS Sensor In-House Production: Molded, Assembled, Packed, and Shipped
Precision-molded housings form the structural backbone of every ABS sensor. Our in-house injection lines ensure dimensional accuracy, high waterproof ratings, and consistent material strength across batches.
Our semi-automated assembly lines integrate signal cores, connectors, and cables with tight tolerance control. Standardized procedures ensure consistent signal output and plug compatibility for every sensor.
Final inspections are followed by flexible packing lines that support both bulk industrial cartons and customized retail boxes. With digital inventory management and global shipping support, we ensure fast order fulfillment and clean outbound handling.
Mazda ABS Sensor Advanced Equipment Showcase
To ensure every ABS Sensor meets performance expectations, Elecdura continuously invests in advanced production and testing equipment.
Strict Inspection for Mazda ABS Sensor
Every ABS Sensor from Elecdura undergoes a rigorous multi-step quality inspection process before shipment.Our factory implements strict control standards throughout production — from material inspection to final signal testing — to ensure signal accuracy, durability, and safety in real-world use.
Mazda ABS Sensor Supplier Strong Export Capability and Stable Supply
Elecdura ensures large-scale, stable supply of alternators to global markets. Each pallet and carton is meticulously packaged to export standards for secure transport. Leveraging years of export expertise and consistent demand from long-term clients, we provide reliable delivery assurance and supply chain continuity for bulk orders.
ABS Sensor Supplier Partnership Drives Market Success for Top Distributors
Elecdura collaborates with leading distributors and brands worldwide — helping our partners dominate their local aftermarket. Through professional sourcing, customized product development, and close market research, we've supported clients in becoming the Top 1 aftermarket suppliers in South America (in some categories). Our integrated marketing and supply capabilities make us more than a factory — we're your strategic growth partner.
 Successful client collaboration showcased at trade fair booth | |  Distributor partnership meeting for aftermarket product planning | |  Elecdura with international buyer in Brazil Exhibition |
 Elecdura assisting South American client in aftermarket development | |  Elecdura team and partners at international auto parts exhibition | |  Warehouse of Elecdura global partner displaying stocked |
FAQ-ABS Sensor - B25D4370XG
Q1: Which vehicle models is part number "B25D4370XG" compatible with?
A: This part is specifically designed for the Mazda Protégé series, with detailed compatibility as follows:
Mazda Protégé: 1999-2003 model years
Mazda Protégé5: 2002-2003 model years
Its compatibility range is largely the same as the previously analyzed "B25D4371YB", making it another part variant for Protégé models of the same era.
Q2: What are its key physical specifications?
A: Its core installation specifications are: 1 rectangular female connector, 2 blade-type male terminals, a harness length of 889 mm (approx. 35 inches), and mounting at the Wheel location via 2 bolt holes. The combination of a female connector with male terminals is its most distinctive feature, as it is electrically opposite to most previously analyzed Protégé sensors (which mostly have male connectors with female terminals).
Q3: What is its relationship to "B25D4371YB", which also has 2 bolt holes? Are they interchangeable?
A: Both are for the Protégé and have 2 bolt holes, but they are two completely different parts and are NOT directly interchangeable. The core difference is that their electrical interface genders are completely opposite:
B25D4370XG: Rectangular female connector with male terminals.
B25D4371YB: Rectangular male connector with female terminals.
This means their wiring harness plugs cannot mate. They likely correspond to different sides of the vehicle (e.g., front left vs. front right) or a design change within the model years.
Q4: This part's connector gender is opposite to the common design. What should I pay attention to when purchasing?
A: This requires buyers to pay extreme attention to the physical gender of the connector and terminals during verification. The standard "check the old part" procedure must include careful visual inspection of the old sensor's connector (whether it has male slots or female pins) and internal terminals (whether they are male blades or female sleeves). Judging solely by the number of bolt holes (both 2 holes) or general appearance (both rectangular) will lead to a purchase error.
Q5: Facing parts with opposite interfaces but identical mounting holes, how can I ensure 100% correct selection?
A: To ensure 100% correctness, perform the indispensable "trinity" verification method:
1. Dimension 1: Part Number. Remove the old part and confirm its part number is "B25D4370XG".
2. Dimension 2: Bolt Holes. Confirm the old part's mounting flange has 2 bolt holes.
3. Dimension 3: Connector Gender (Critical). You must physically check and confirm the old part's connector is female (with pin sockets) and its internal terminals are male (metal blades).
If any one dimension does not match, it is not the correct part. For a part with such a special interface, obtaining high-resolution photos from the supplier for comparison is a highly recommended additional step.
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