Bilstein B12 2007 Mazda 3 Mazdaspeed Front and Rear Suspension Kit

This Bilstein shock or strut is engineered for the verified 2007-2009 Mazda 3 Mazdaspeed application listed below. It is selected by exact manufacturer part number 46-190321, so confirm every fitment note, suspension configuration, ride-height requirement, and included component before ordering.

Key Features

• Monotube Design: High-pressure gas technology for consistent damping performance.
• Lowering Range: Even drop of 25-40mm depending on vehicle setup.
• Direct Fit: Bolt-on installation for 2007-2009 Mazda 3 Mazdaspeed models.
• Brand Heritage: OE supplier to multiple performance vehicle manufacturers.
• Designed for fixed-height lowering applications.
• Proven monotube damper construction used by major automakers.

Fitment

Specifications

What’s Included

One new Bilstein product identified by manufacturer part number 46-190321. Mounts, isolators, fasteners, alignment parts, bump stops, tools, and companion components are included only when expressly stated for this exact part number.

About Bilstein

Bilstein develops lowering, lifting, shock, strut, coilover, spring, sway-bar, spindle, and related suspension products for trucks, SUVs, and performance vehicles. Product selection remains exact-application and exact-part-number specific.

Related Bilstein Products

• Bilstein B12 (Pro-Kit) 05-11 Porsche 911 Carrera H6 3.6L/S H6 3.8 Front and Rear Suspension Kit
• Bilstein B12 2007 BMW 335i Base Sedan Front and Rear Suspension Kit
• Bilstein B12 (Pro-Kit) 06-10 Dodge Charger V6/V8 2.7L/3.5L/5.7L Front & Rear Suspension Kit

Browse the Bilstein collection for related suspension components.

Frequently Asked Questions

Will this Bilstein part fit my 2007-2009 Mazda 3 Mazdaspeed?
That application is listed, but confirm the drivetrain, cab or body style, bed length, factory suspension, production split, current ride height, and every Bilstein application note before ordering.

Will I need an alignment after installation?
An alignment is recommended whenever ride height or suspension geometry changes. Verify tire clearance, steering travel, brake-line routing, headlight aim, and all fastener torque after the work.

Does this include every part needed for installation?
Only parts expressly stated for this exact manufacturer part number are included. Reuse or replacement of mounts, isolators, hardware, alignment parts, bump stops, and related components depends on the application.

Installation Instructions

Follow the current Bilstein instructions and vehicle service information for this exact part number. Support the vehicle safely, use the specified tools and torque values, inspect all mounts and hardware, verify brake-line and tire clearance, settle the suspension, and complete an alignment when geometry or ride height changes. Professional installation is recommended.