KYB 341254 Suspension Strut - Rear

KYB Excel-G Rear Strut for Mazda Miata

The KYB Excel-G 341254 is a rear suspension strut built to restore original ride control on the 1999-2005 Mazda Miata, excluding Sport Package applications. It uses a nitrogen gas-charged, twin-tube design and OE-quality components to return the vehicle’s designed handling, stability, and steering response.

KYB’s Excel-G line is an Original Equipment for the Aftermarket solution made on the same assembly lines used for OE production. For Mazda Miata owners looking for a direct replacement rear strut, 341254 is engineered to match factory damping characteristics rather than change them.

Key Features

• Fits 1999-2005 Mazda Miata, rear, recommended OEM replacement; excludes Sport Package
• Restores designed control, lane-change response, and body movement management
• Nitrogen gas-charged, twin-tube suspension strut design
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact and steering response
• Strong strut body and bracket construction helps minimize flex and maintain alignment
• Lower mount type: E2(12.2x45); upper mount type: S1
• Compressed length: 12.87 in.; extended length: 17.87 in.; stroke length: 5 in.

Excel-G Product Line Details

The KYB Excel-G line is focused on restoring OE ride characteristics for daily-driven vehicles. For the Mazda Miata, that means a rear strut calibrated to support factory-style handling balance, braking stability, and suspension response. Part number 341254 is part of KYB’s OE-oriented replacement range for drivers who want original performance behavior from the suspension system.

What This Strut Helps Address

• Excessive rear bounce or oscillation
• Reduced stability during braking and lane changes
• Loose or inconsistent rear suspension response
• Uneven tire contact caused by worn damping control
• Noisy or imprecise ride behavior from aging rear struts

Installation Notes and Tips

Compatible With 1999-2005 Mazda Miata rear suspension applications listed above. KYB recommends replacing the strut mount with part number SM5139 to reduce noise and vibration, and using strut boot SB108 to help protect the new strut from dirt, debris, and salt. This part cross-references Monroe Shocks & Struts 71343 for the same application.

Quality Assurance

KYB is a major OE supplier, and the Excel-G line is built on the same production lines used for original equipment components. The 341254 is calibrated to restore factory-designed suspension performance for the Mazda Miata, with OE-quality construction and application-specific damping control.