Moog 81003 Coil Spring Set - Rear

Moog Coil Spring Set for Ford and Mazda Vehicles

The Moog 81003 coil spring set is engineered to restore suspension performance for select Ford and Mazda models. Designed with precise dimensions and durable materials, this coil spring set helps maintain proper ride height and handling characteristics.

• Wire diameter options: 0.45 inch and 11.50 mm for strength and flexibility
• Spring color: black for corrosion resistance and durability
• Front and rear spring outside diameter: 4.270 inches
• Front and rear spring relaxed length: 14.07 inches (357.40 mm)
• Front and rear spring compressed length: 9.00 inches (228.60 mm)

Detailed Coil Spring Specifications

The Moog 81003 coil spring set features a wire diameter of 0.45 inches (11.50 mm), providing a balance between stiffness and ride comfort. Both front and rear springs share an outside diameter of 4.270 inches, ensuring consistent suspension geometry. The relaxed length of 14.07 inches (357.40 mm) and compressed length of 9.00 inches (228.60 mm) allow for proper suspension travel and load support. The black finish offers protection against corrosion, extending the lifespan of the springs under various driving conditions.

Compatible Vehicles and Applications

This coil spring set is compatible with the following vehicles:

• Ford Focus models requiring front and rear coil springs
• Mazda 3 and Mazda 3 Sport models needing suspension spring replacement

Use the Moog 81003 coil spring set to address suspension issues such as sagging springs, uneven ride height, or degraded handling performance.

Common Suspension Issues Addressed

• Restores proper ride height and vehicle stance
• Improves handling stability and cornering response
• Reduces excessive suspension sag under load
• Replaces worn or fatigued coil springs
• Maintains suspension geometry for safety and comfort

Installation Notes and Tips

When installing the Moog 81003 coil spring set, ensure the vehicle is securely lifted and supported. It is recommended to replace springs in pairs (front or rear) to maintain balanced suspension performance. Verify spring orientation and seating during installation to prevent noise or premature wear. Professional installation is advised for safety and optimal results.

Quality Assurance and Warranty

Moog coil springs are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The 81003 coil spring set undergoes rigorous quality control to provide consistent fit and function. Please refer to Moog's official warranty policy for coverage details.