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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Firestone
Firestone Coil-Rite Rear Air Helper Spring Kit for 2009-2019 Dodge/Ram 1500 (MPN: 4185)
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits 2009-2019 Dodge Ram 1500, Ram 1500, and Ram 1500 Classic 2WD/4WD models.
The Firestone Coil-Rite Air Helper Spring Kit is engineered to enhance the load-carrying capacity and ride quality of vehicles equipped with rear coil spring suspensions. These air springs install directly inside your existing factory coil springs to create a variable spring rate, effectively leveling your truck under heavy loads and preventing bottoming out. By maintaining a level stance, the kit improves steering geometry, braking effectiveness, and headlight aiming for safer towing and hauling.
- Support Capacity: 500-1,000 lbs. per set (not to exceed vehicle GVWR)
- Material: Durable, high-strength elastic polyurethane
- Adjustability: Air pressure can be tuned to match specific load requirements
- Operating Temperature: -40°F (-40°C) to 180°F (82°C)
- Installation: Fits inside existing coil springs; reduces tire wear and improves stability
- Manufacturer Part Number: 4185
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2010 | Dodge | Ram 1500 | Laramie |
| 2009-2010 | Dodge | Ram 1500 | SLT |
| 2009-2010 | Dodge | Ram 1500 | Sport |
| 2009-2010 | Dodge | Ram 1500 | ST |
| 2009-2010 | Dodge | Ram 1500 | TRX |
| 2009-2010 | Dodge | Ram 1500 | TRX4 |
| 2011-2018 | Ram | 1500 | Big Horn |
| 2012-2018 | Ram | 1500 | Express |
| 2013-2018 | Ram | 1500 | HFE |
| 2011-2018 | Ram | 1500 | Laramie |
| 2014-2015 | Ram | 1500 | Laramie Limited |
| 2011-2018 | Ram | 1500 | Laramie Longhorn |
| 2015-2018 | Ram | 1500 | Limited |
| 2014-2018 | Ram | 1500 | Lone Star |
| 2011-2016 | Ram | 1500 | Outdoorsman |
| 2013 | Ram | 1500 | R/T |
| 2015-2018 | Ram | 1500 | Rebel |
| 2011-2018 | Ram | 1500 | SLT |
| 2014-2018 | Ram | 1500 | Special Service |
| 2011-2018 | Ram | 1500 | Sport |
| 2011-2012 | Ram | 1500 | ST |
| 2011-2018 | Ram | 1500 | Tradesman |
| 2012 | Ram | 1500 | Tradesman HD |
| 2019 | Ram | 1500 Classic | Big Horn |
| 2019 | Ram | 1500 Classic | Express |
| 2019 | Ram | 1500 Classic | Lone Star |
| 2019 | Ram | 1500 Classic | Special Service |
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
Firestone Coil-Rite Rear Air Helper Spring Kit for 2009-2019 Dodge/Ram 1500 (MPN: 4185)
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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Fits 2009-2019 Dodge Ram 1500, Ram 1500, and Ram 1500 Classic 2WD/4WD models.
The Firestone Coil-Rite Air Helper Spring Kit is engineered to enhance the load-carrying capacity and ride quality of vehicles equipped with rear coil spring suspensions. These air springs install directly inside your existing factory coil springs to create a variable spring rate, effectively leveling your truck under heavy loads and preventing bottoming out. By maintaining a level stance, the kit improves steering geometry, braking effectiveness, and headlight aiming for safer towing and hauling.
- Support Capacity: 500-1,000 lbs. per set (not to exceed vehicle GVWR)
- Material: Durable, high-strength elastic polyurethane
- Adjustability: Air pressure can be tuned to match specific load requirements
- Operating Temperature: -40°F (-40°C) to 180°F (82°C)
- Installation: Fits inside existing coil springs; reduces tire wear and improves stability
- Manufacturer Part Number: 4185
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2010 | Dodge | Ram 1500 | Laramie |
| 2009-2010 | Dodge | Ram 1500 | SLT |
| 2009-2010 | Dodge | Ram 1500 | Sport |
| 2009-2010 | Dodge | Ram 1500 | ST |
| 2009-2010 | Dodge | Ram 1500 | TRX |
| 2009-2010 | Dodge | Ram 1500 | TRX4 |
| 2011-2018 | Ram | 1500 | Big Horn |
| 2012-2018 | Ram | 1500 | Express |
| 2013-2018 | Ram | 1500 | HFE |
| 2011-2018 | Ram | 1500 | Laramie |
| 2014-2015 | Ram | 1500 | Laramie Limited |
| 2011-2018 | Ram | 1500 | Laramie Longhorn |
| 2015-2018 | Ram | 1500 | Limited |
| 2014-2018 | Ram | 1500 | Lone Star |
| 2011-2016 | Ram | 1500 | Outdoorsman |
| 2013 | Ram | 1500 | R/T |
| 2015-2018 | Ram | 1500 | Rebel |
| 2011-2018 | Ram | 1500 | SLT |
| 2014-2018 | Ram | 1500 | Special Service |
| 2011-2018 | Ram | 1500 | Sport |
| 2011-2012 | Ram | 1500 | ST |
| 2011-2018 | Ram | 1500 | Tradesman |
| 2012 | Ram | 1500 | Tradesman HD |
| 2019 | Ram | 1500 Classic | Big Horn |
| 2019 | Ram | 1500 Classic | Express |
| 2019 | Ram | 1500 Classic | Lone Star |
| 2019 | Ram | 1500 Classic | Special Service |
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