Monroe 40324 Max-Air Adjustable Air Shock Absorber

The Monroe 40324 Max-Air Adjustable Air Shock Absorber is engineered for vehicles that regularly haul heavy loads or tow trailers. Designed to maintain a level ride height under load, this air shock can be inflated or deflated as needed — up to 150 PSI — to compensate for up to 1,200 lbs. of additional weight (capacity subject to vehicle suspension, tire, and transmission limits; see owner's manual).

Key Features:

• Adjustable Air Pressure: Inflate or deflate from 20 PSI to 150 PSI to dial in the right support level for your load
• Maintains Ride Height: Prevents rear sag and helps keep the vehicle level when hauling or towing
• Full-Displaced Valving: Provides a smooth, controlled ride on both compression and extension cycles
• Sintered Iron Piston: Enhances durability and extends service life
• Hardened, Precision-Ground Piston Rod: 1/2 in. rod delivers consistent, reliable performance
• Lubricated Air Sleeve: Reduces friction for smoother suspension movement
• All-Weather Fluid: Special fluid modifiers ensure smooth rod reaction in extreme temperatures
• Leak-Resistant Air Fitting: Resists air leakage and is compatible with factory automatic leveling systems (where applicable) or can be manually inflated with an air compressor

The Monroe Max-Air 40324 is a direct solution for drivers who need on-demand load support without sacrificing everyday ride comfort. Compatible with Monroe air shock accessory and shock air hose AK kits (varies by application).