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BVSN437AZB Genuine Mazda ABS Hydraulic Control Unit

P/N: BVSN437AZB Manufactured by: Mazda
Original price $1,299.00 - Original price $1,299.00
Original price
$1,299.00
$1,299.00 - $1,299.00
Current price $1,299.00
1 in Stock
Condition: New
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Description

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.

Vehicle Compatibility

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


General Specifications

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


Product Features

The BVSN437AZB Mazda ABS hydraulic control unit is designed to coordinate hydraulic braking functions in compatible Mazda 3 applications:

  • Manages brake fluid pressure fluctuations during ABS activation
  • Combines the hydraulic pump and electric drive motor in one housing
  • Uses an internal accumulator within the brake pressure control circuit
  • Includes a proportioning valve for the specified brake hydraulic layout
  • Matches designated Mazda 3 systems without electronic stability control
  • Helps prevent sustained wheel lockup under heavy braking conditions
  • Provides factory-style connections for hydraulic lines and ABS electronics

Application Notes

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.

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