KYB Suspension Shock Absorber P/N:551105

Bring firm, controlled damping back to the rear of your Mazda with the KYB Gas-a-just shock absorber (MPN 551105) — a high-pressure monotube gas shock that installs as a rear direct-fit replacement for the 2004-2009 Mazda 3 and the 2006-2010 and 2012-2015 Mazda 5. Its components and valving are designed specifically for Mazdas.

• Monotube gas design: Two separate working chambers — an air-free hydraulic piston and valve area for responsiveness and control, plus a high-pressure nitrogen gas area with a floating piston — keep the gas and oil separated for fade-free operation and instant response.
• Quicker steering response: The higher gas pressure of the Gas-a-just responds quickly to improve steering response, and adds up to 25% more damping performance over original equipment shocks.
• Built for real-world loads: Includes additional damping over the OE design for vehicles that work, tow, and run larger, heavier tires and wheels.
• Durable piston rod: An ultra-smooth triple chrome plated piston rod reduces seal wear, since fluid leaking can be a cause of shock failure.

Because electronic safety systems depend on the suspension, brakes, and tires operating as the vehicle manufacturer intended, the Gas-a-just helps keep those systems performing as designed. Sold individually — replace both rear shocks together as a matched pair for balanced ride control. To reduce the chance of noise and vibration, KYB recommends installing new strut mounts, part number SM5723.

Interchange: 70003 · BP4K28910D · BR5S28910B · BR5S28910C · BR5S28910D · BR5S28910E · BR5V28910B · BR5V28910C · BR5V28910D · CC4328910 · CC4328910A · CD8528910 · CD8528910A · CG3628910 · 5607