4138 Firestone Industrial Helper Spring Kit Air Spring
4138 Firestone Industrial Helper Spring Kit Air Spring
Available in stock (50)
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4138 Firestone Industrial Helper Spring Kit Air Spring
Transform your vehicle's performance with the 4138 Firestone Industrial Helper Spring Kit. Designed to enhance ride quality, handling, and braking, these air helper springs are essential for any car, minivan, van, light truck, RV, or SUV owner seeking a smoother, more stable driving experience.
Key Features:
- Adjustable Air Support: Easily control air pressure to accommodate varying loads and road conditions, allowing for a customizable ride.
- Durable Construction: Made from high-quality polyurethane, these springs withstand the demands of coil-sprung suspensions, ensuring long-lasting performance.
- Enhanced Stability: Absorbs road shocks to deliver a smooth ride for passengers and cargo alike.
- Improved Handling: Keeps your vehicle level, resulting in better steering control, effective braking, and reduced tire wear.
- Reduces Bottoming Out: The protective air cushion softens contact between the axle and frame, preventing damage to your vehicle.
Installation Made Easy:
No drilling is required for installation! The kit includes:
- Brackets
- Air springs
- All necessary hardware
- Air line
- Separate valves for manual inflation
Specifications:
- Load Capacity: 500 to 1000 pounds per set
- Pressure Range: 5 to 35 PSI
- Mounting Type: Inside coil spring
- Warranty: Limited lifetime warranty
Experience the difference with Coil-Rite Air Helper Springs and enjoy a more comfortable ride, enhanced safety, and improved vehicle performance under heavy loads and challenging conditions.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

