KYB 551105 Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber 551105

The KYB Gas-a-just shock absorber 551105 is designed specifically for Mazda 3 and Mazda 5 models. This suspension shock absorber offers precise damping control to maintain vehicle stability and ride comfort under various driving conditions.

• Compressed length: 18.89 inches
• Extended length: 28.34 inches
• Stroke length: 9.45 inches
• Lower mount type: E2(12x51)
• Upper mount type: S1(8mm)
• Rear stop (R-stop) included
• No dust cover or internal rebound spring

Details on KYB Gas-a-just Shock Absorber Features

The KYB Gas-a-just line is engineered to provide consistent gas pressure for improved shock response and vehicle control. This particular shock absorber, part number 551105, features a compressed length of 18.89 inches and an extended length of 28.34 inches, with a stroke length of 9.45 inches. The lower mount uses an E2 (12x51) configuration, while the upper mount is an S1 (8mm) type, ensuring proper fitment on compatible Mazda 3 and Mazda 5 models. The design includes a rear stop (R-stop) to prevent overextension, but it does not include a dust cover or internal rebound spring, which is typical for this product line.

Compatible Vehicles and Applications

This KYB Gas-a-just shock absorber 551105 is compatible with the following vehicles:

• Mazda 3
• Mazda 5

It is intended for use in suspension systems requiring precise damping control to improve handling and ride quality.

Common Issues Addressed by KYB Gas-a-just Shock Absorber 551105

• Reduced vehicle stability due to worn shocks
• Excessive body roll during cornering
• Increased braking distance from poor suspension response
• Uneven tire wear caused by inconsistent damping
• Harsh or uncomfortable ride quality

Installation Notes and Tips

When installing the KYB Gas-a-just shock absorber 551105, ensure the correct orientation of the upper and lower mounts according to the vehicle’s suspension design. Verify that the E2 (12x51) lower mount and S1 (8mm) upper mount align properly with the Mazda 3 or Mazda 5 mounting points. Since this shock absorber does not include a dust cover, inspect the surrounding suspension components for wear or damage during installation. Proper torque specifications should be followed to maintain safety and performance.

Quality Assurance and Warranty

KYB manufactures the Gas-a-just shock absorbers to meet or exceed OEM standards for durability and performance. Part number 551105 undergoes rigorous quality control to ensure consistent gas pressure and reliable damping characteristics. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.