ACDelco 503-366 Professional Premium Gas Charged Front Suspension Strut Cartridge

The ACDelco 503-366 Professional Premium Gas Charged Front Suspension Strut Cartridge is a high-quality replacement strut cartridge engineered to restore ride comfort, handling, and vehicle stability. Part of ACDelco's Gold (Professional) suspension line, this strut cartridge is backed by GM and built to meet rigorous performance standards for passenger cars, light trucks, and SUVs.

Key Features:

• Nitrogen gas charged twin-tube design — custom-tuned to optimize vehicle comfort and performance
• RoadResponse Valving Technology — automatically adjusts damping response to deliver comfort during normal driving and improved control under demanding road conditions
• Sintered iron pistons — provide consistent, reliable damping force throughout the strut's service life
• Leak-proof positive O-ring piston seal — prevents oil blow-by for improved resistance and long-term durability
• Super-finished chromed piston rod — reduces friction and wear on the piston seal for extended service life
• Permanently lubricated piston rod seal — ensures lasting performance without maintenance
• Rigorously tested — each unit is carefully tested to ensure proper fit and performance for its intended application

Strut cartridges gradually wear over time, often without obvious symptoms, but degraded units can negatively affect braking distances, steering response, and tire wear. The ACDelco 503-366 strut cartridge is designed as a direct-fit front suspension replacement. A professional wheel alignment is recommended following strut replacement to restore proper steering geometry and alignment angles.