MILLISEC Air Helper Spring Bags for Ram 1500 (2009–2024) — Rear Air Spring Kit, Up to 2100 lb Load-Leveling, Adjustable 5–50 PSI

MILLISEC Air Helper Spring Bags suspension kit is a bolt-on rear air-assist solution for 2009–2024 Ram 1500 and 1500 Classic pickups that adds up to 2100 lb of load-leveling capacity.

If you tow trailers, carry heavy payloads or want a firmer, more controlled rear end, this MILLISEC 60818HD-compatible rear air spring kit offers adjustable air support that integrates with your truck’s existing rear suspension. It is designed as a direct replacement for the OEM 60818HD and fits Ram 1500 models listed, excluding trucks with factory air suspension. The kit includes two air helper springs, all necessary brackets, mounting hardware, inflation valves, elbow fittings, tubing and an installation manual to simplify fitment and setup.

How does this air helper spring kit improve towing and hauling?

The air helper springs reduce rear sag and restore a level ride when you carry heavy loads or tow. By adding air pressure you can fine-tune the rear ride height to keep headlights leveled and improve braking and stability under load. This helps maintain predictable handling and reduces wear on tires and suspension components.

• Adjustable air pressure range: 5–50 psi for precise support
• Up to 2100 lb load-leveling capacity at optimal pressure
• Reduces rear-end sag, improving braking and steering response
• Protects cargo and tires by maintaining an even chassis attitude

What vehicles and configurations are compatible with the MILLISEC 60818HD kit?

This kit is engineered to fit 2009–2010 Dodge Ram 1500, 2011–2018 Ram 1500, and 2019–2024 Ram 1500 Classic pickup trucks that do not have factory-installed air suspension. It is a direct aftermarket replacement for part number 60818HD and uses the same mounting locations for a straightforward swap.

• Compatible with specified Ram 1500/1500 Classic model years only
• Not compatible with factory air-suspension-equipped trucks
• Direct OEM-style replacement to part number 60818HD
• Includes brackets to mount using stock frame points

How easy is installation and what hardware is included?

The MILLISEC kit ships complete with two air helper springs, mounting brackets, the bolts and nuts required, inflation valves, elbow fittings, tubing and an installation manual. A basic set of hand tools and moderate mechanical skill are typically sufficient to complete the install in a garage or driveway.

• Comes with complete hardware and detailed installation manual
• Includes inflation valves and tubing for air setup
• Mounts to existing frame points—no welding required
• Recommended: jack stands and basic tools for safe installation

How should I set and maintain the air pressure for best performance?

Start with low pressure (around 5–10 psi) when unloaded, then increase air to remove sag and achieve a level stance when hauling. Periodically check pressure and fittings for leaks, and inspect the bags and brackets during routine maintenance to ensure long service life.

• Adjust from 5–50 psi depending on load and comfort preference
• Check inflation valves and tubing for secure connections
• Inspect bags and brackets for wear or rubbing every few months
• Keep within recommended psi to avoid overstressing components

Who is this for: The MILLISEC Air Helper Spring Bags 60818HD kit is aimed at Ram 1500 and 1500 Classic owners who frequently haul heavy loads or tow and want an economical, adjustable way to restore ride height, improve stability and protect cargo and suspension. It’s a good choice for weekend haulers, light commercial drivers and anyone who needs added rear support without factory air suspension complexity. Note: do not purchase if your vehicle already has factory air suspension.