BVSN437AZB Genuine Mazda ABS Hydraulic Control Unit
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Unit Auto Parts LLC provides a complimentary 2-Year Warranty on all automotive parts. Shop with confidence knowing your purchase is protected. Learn More
The BVSN437AZB is a genuine Mazda ABS hydraulic control unit for select 2004–2009 Mazda 3 vehicles equipped with 2.0L or 2.3L gasoline engines. As part of the factory anti-lock braking system, it uses an integrated pump, motor, accumulator, and proportioning valve to vary brake fluid pressure and help preserve steering control during hard braking.
| Year | Vehicle | Engine | Trims |
|---|---|---|---|
| 2004 | Mazda 3 | 2.3L L4 Gas | S |
| 2004 | Mazda 3 | 2.0L L4 Gas | i |
| 2005 | Mazda 3 | 2.3L L4 Gas | S |
| 2005 | Mazda 3 | 2.3L L4 Gas | SP23 |
| 2005 | Mazda 3 | 2.0L L4 Gas | i |
| 2006 | Mazda 3 | 2.3L L4 Gas | S |
| 2006 | Mazda 3 | 2.0L L4 Gas | i |
| 2007 | Mazda 3 | 2.3L L4 Gas | Mazdaspeed |
| 2007 | Mazda 3 | 2.3L L4 Gas | S |
| 2007 | Mazda 3 | 2.0L L4 Gas | i |
| 2008 | Mazda 3 | 2.3L L4 Gas | Mazdaspeed |
| 2008 | Mazda 3 | 2.3L L4 Gas | S |
| 2008 | Mazda 3 | 2.0L L4 Gas | i |
| 2009 | Mazda 3 | 2.3L L4 Gas | Mazdaspeed |
| 2009 | Mazda 3 | 2.3L L4 Gas | S |
| 2009 | Mazda 3 | 2.0L L4 Gas | i |
| Condition | New |
| Part Number | BVSN437AZB |
| Brand | Mazda |
| Part Type | ABS Hydraulic Control Unit |
| Years | 2004–2009 |
| Vehicle | Mazda 3 |
| Engine | 2.0L L4 Gas, 2.3L L4 Gas |
| System | Anti-Lock Braking System (ABS) |
| Included Components | Hydraulic Pump, Motor, Accumulator, Proportioning Valve |
| Stability Control | Without Stability Control |
| Fitment Type | Direct Replacement |
| Weight | 6.25 lb |
The BVSN437AZB Mazda ABS hydraulic control unit is designed to coordinate hydraulic braking functions in compatible Mazda 3 applications:
The BVSN437AZB is intended for select 2004–2009 Mazda 3 i, S, SP23, and Mazdaspeed applications with compatible 2.0L or 2.3L gasoline engines and ABS without stability control. Before installation, compare the existing assembly's hydraulic ports, electrical connector, mounting arrangement, and applicable Mazda brake bleeding instructions.
Always confirm the vehicle VIN, original ABS hydraulic assembly number, stability control equipment, brake pipe configuration, and required system bleeding procedure before installation.