Firestone Coil-Rite Rear Air Helper Spring Kit for Select Jeep 1997-2010 (4157)

Fits select 1997-2010 Jeep Wrangler, Grand Cherokee, and Commander models.

Firestone Coil-Rite air helper springs are engineered to enhance your vehicle's load-carrying capacity and ride quality by working directly within the existing rear coil springs. By creating a variable spring rate, these polyurethane inserts level the vehicle under load, which improves steering control, braking effectiveness, and overall stability while preventing the suspension from bottoming out.

Constructed from durable, elastic polyurethane, these air springs allow for precise pressure adjustments to match your specific cargo or towing requirements. Performance can be altered as easily as inflating a tire, ensuring your headlights stay properly aimed and tire wear is minimized regardless of road conditions.

• Supports 500–1,000 lbs. of load-carrying capacity per set (do not exceed vehicle GVWR)
• Manufactured from high-strength, durable polyurethane for long-term stability
• Operating temperature range: -40°F (-40°C) to 180°F (82°C)
• Improves handling and balance during heavy hauling or towing
• Adjustable air pressure for varying loads and road conditions
• Manufacturer Part Number: 4157