Firestone - FIR4148 - Coil-Rite Air Spring Kit Rear
Firestone - FIR4148 - Coil-Rite Air Spring Kit Rear
Firestone -
Couldn't load pickup availability
- No Drill Installation - This kit uses existing holes in the frame to mount the upper and lower brackets. Modification of the frame or factory suspension is required. Installing this kit does not void the factory warranty
- Eliminates bottoming out, improves ride quality in loaded conditions by returning your vehichle back to factory ride height
- 5 psi minimum air pressure recommend for unloaded conditions
- Rated up to 1,000 lbs. of carry capacity
- Manual Fill - Compressor Not Included
- 60 psi maximum for loaded conditions
- Keep Headlights Aimed On The Road
- Improve Braking Effectiveness
- Improve Steering And Balance
- Increase Vehicle Stability
- Maintain A Level Vehicle
- Installs in 1-2 hours
- Prevent Bottoming Out
- Assembled in the USA
- Reduce Tire Wear
The Firestone Coil-Rite air helper spring kit is designed for the rear of 2019–2025 Jeep Gladiator models with 2WD or 4WD. Adjustable air pressure provides load support for changing conditions while helping maintain vehicle height, stability, steering balance, ride quality and braking effectiveness. Do not exceed the vehicle's GVWR.
This kit uses existing frame holes for a no-drill installation between the frame and suspension. It is designed to help reduce bottoming out and maintain a level vehicle when carrying loads. Individual inflation valves allow separate adjustment from side to side, helping compensate for off-center loads. Installation typically takes 1–2 hours. A minimum of 5 psi is recommended when unloaded, and the maximum pressure is 60 psi for loaded conditions. The kit is rated for up to 1,000 lb. of carry capacity, and a compressor is not included.
Key Features & Performance Benefits
- No-drill installation using existing frame holes
- Helps maintain factory ride height and reduce bottoming out under loaded conditions
- Adjustable air pressure supports changing loads and helps maintain vehicle stability
- Individual inflation valves allow side-to-side adjustment for off-center loads
Key Product Specifications & Technical Data
- Brand: Firestone
- Part number: FIR4148
- Product type: Coil-Rite air helper spring kit
- Position: Rear
- Fitment: 2019–2025 Jeep Gladiator
- Drivetrain fitment: 2WD and 4WD
- Carry capacity rating: Up to 1,000 lb.
- Air pressure range: 5 psi minimum unloaded; 60 psi maximum loaded
What's Included in the Box
The kit includes the components required for installation. Manual fill system; compressor not included. Assembled in the USA. The kit comes with a two-year limited warranty.
Fitment
Fits 2020 Jeep Gladiator applications listed by the supplier, including 2WD and 4WD configurations where applicable.
Fitments:
2020 Jeep Gladiator Altitude
2020 Jeep Gladiator Launch Edition
2020 Jeep Gladiator Mojave
2020 Jeep Gladiator Overland
2020 Jeep Gladiator Rubicon
2020 Jeep Gladiator Sport
2020 Jeep Gladiator Sport S
2021 Jeep Gladiator 80th Anniversary
2021 Jeep Gladiator High Altitude
2021 Jeep Gladiator Mojave
2021 Jeep Gladiator Overland
2021 Jeep Gladiator Rubicon
2021 Jeep Gladiator Sport
2021 Jeep Gladiator Sport S
2021 Jeep Gladiator Texas Trail
2021 Jeep Gladiator Willys
2021 Jeep Gladiator Willys Sport
2022 Jeep Gladiator Altitude
2022 Jeep Gladiator High Altitude
2022 Jeep Gladiator Mojave
2022 Jeep Gladiator Overland
2022 Jeep Gladiator Rubicon
2022 Jeep Gladiator Sport
2022 Jeep Gladiator Sport S
2022 Jeep Gladiator Texas Trail
2022 Jeep Gladiator Willys
2022 Jeep Gladiator Willys Sport
2023 Jeep Gladiator Freedom
2023 Jeep Gladiator High Altitude
2023 Jeep Gladiator Mojave
2023 Jeep Gladiator Overland
2023 Jeep Gladiator Rubicon
2023 Jeep Gladiator Sport
2023 Jeep Gladiator Sport S
2023 Jeep Gladiator Texas Trail
2023 Jeep Gladiator Willys
2023 Jeep Gladiator Willys Sport
2024 Jeep Gladiator Mojave
2024 Jeep Gladiator Mojave X
2024 Jeep Gladiator Rubicon
2024 Jeep Gladiator Rubicon X
2024 Jeep Gladiator Sport
2024 Jeep Gladiator Sport S
2024 Jeep Gladiator Willys
2025 Jeep Gladiator High Tide
2025 Jeep Gladiator Mojave
2025 Jeep Gladiator Mojave X
2025 Jeep Gladiator NightHawk
2025 Jeep Gladiator Rubicon
2025 Jeep Gladiator Rubicon X
2025 Jeep Gladiator Sport
2025 Jeep Gladiator Sport S
2025 Jeep Gladiator Texas Trail
2025 Jeep Gladiator Willys
| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Ltl Freight Required: false |
| Prop 65: Y |
| Part Type: automotive |
| Epa: N/A |
| Carb Acknowledgement Required: false |
| Regular Stock: t |
| Units Per Sku: 1 |
Fitments
Fitments
Materials
Materials
Shipping & Returns
Shipping & Returns
Dimensions
Dimensions
Care Instructions
Care Instructions
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