LOGIQ 89-12140 RAM 2500 Rear Air Spring Kit Manual Inflation

Replacing rear coil springs with axle-mounted air springs gives a RAM 2500 a way to adjust rear ride height between unloaded driving and towing. The 89-12140 kit uses two assembled air-spring units with a manual air-line and Schrader-valve arrangement.

This listing is for the manual-inflation configuration, not an optional AirIQ compressor package. LOGIQ specifies 20 to 150 psi operation and a separate spacer kit for lifts beyond 3 inches.

Verified specifications

• Manufacturer MPN: 89-12140
• Location: Rear axle, inboard frame rails
• Quantity: Two air spring assemblies
• Inflation: Manual airline / Schrader valves; no compressor
• Pressure: 20-150 psi
• Air spring lifting force: 8,200 lb at 150 psi; not vehicle payload
• Advertised load support: 5,000 lb at 150 psi; never exceed OEM GVWR

Package contents

Driver-side and passenger-side factory-assembled springs, mounting hardware, manual airline and valves, and exhaust heat-wrap kit.

Applications and fitment

2014 and newer RAM 2500 at factory ride height or lifted up to 3 inches; 3-6-inch lifts require separate spacer 89-12140-3.

Installation and exclusions

Factory rear air management requires an additional 6-mm to 1/4-inch push-to-connect adaptor if retained. The kit cannot increase OEM payload/GVWR.

Manufacturer warranty

Manufacturer limited lifetime warranty under product terms.