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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 Select 2004-2022 Infiniti and Nissan (4150)
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 2004-2022 Nissan Armada and Pathfinder, and 2005-2009 Infiniti QX56. This Firestone Coil-Rite air helper spring kit is engineered to provide a smoother, more level ride for vehicles equipped with factory coil spring suspensions. By installing these durable polyurethane air springs inside your existing rear coils, you create a variable spring rate that adapts to heavy loads and varying road conditions.
The Coil-Rite system allows for manual air pressure adjustment, letting you stiffen the suspension when towing or hauling and soften it for unladen commuting. This adjustable support helps maintain proper headlight aim, improves braking effectiveness, and reduces tire wear by preventing the rear end from sagging or bottoming out under pressure.
- Support Capacity: 500–1,000 lbs per set (do not exceed vehicle GVWR)
- Material: High-strength, elastic polyurethane
- Temperature Rating: Effective from -40°F (-40°C) to 180°F (82°C)
- Installation: Fits inside original equipment (OE) rear coil springs
- Part Number: 4150
Kit includes two air helper springs, air line tubing, inflation valves, and all necessary hardware for a complete installation.
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2009 | INFINITI | QX56 | Base |
| 2005-2009 | Nissan | Armada | LE |
| 2021-2022 | Nissan | Armada | Midnight Edition |
| 2010-2015,2017-2022 | Nissan | Armada | Platinum |
| 2018-2020 | Nissan | Armada | Platinum Reserve |
| 2021-2022 | Nissan | Armada | S |
| 2005-2010 | Nissan | Armada | SE |
| 2005-2006 | Nissan | Armada | SE Off-Road |
| 2011-2015,2017-2022 | Nissan | Armada | SL |
| 2011-2015,2017-2022 | Nissan | Armada | SV |
| 2010 | Nissan | Armada | Titanium |
| 2004-2005 | Nissan | Pathfinder | LE |
| 2004-2005 | Nissan | Pathfinder | SE |
| 2005 | Nissan | Pathfinder | SE Off-Road |
| 2005 | Nissan | Pathfinder | XE |
| 2004 | Nissan | Pathfinder Armada | LE |
| 2004 | Nissan | Pathfinder Armada | SE |
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Atlus
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Sat: 9:00 am – 2:00 pm
Sun: Closed
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Firestone Coil-Rite Rear Air Helper Spring Kit for Select 2004-2022 Infiniti and Nissan (4150)
This product will be available soon, but you can pre-order now to get on the list before others!
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Fits select 2004-2022 Nissan Armada and Pathfinder, and 2005-2009 Infiniti QX56. This Firestone Coil-Rite air helper spring kit is engineered to provide a smoother, more level ride for vehicles equipped with factory coil spring suspensions. By installing these durable polyurethane air springs inside your existing rear coils, you create a variable spring rate that adapts to heavy loads and varying road conditions.
The Coil-Rite system allows for manual air pressure adjustment, letting you stiffen the suspension when towing or hauling and soften it for unladen commuting. This adjustable support helps maintain proper headlight aim, improves braking effectiveness, and reduces tire wear by preventing the rear end from sagging or bottoming out under pressure.
- Support Capacity: 500–1,000 lbs per set (do not exceed vehicle GVWR)
- Material: High-strength, elastic polyurethane
- Temperature Rating: Effective from -40°F (-40°C) to 180°F (82°C)
- Installation: Fits inside original equipment (OE) rear coil springs
- Part Number: 4150
Kit includes two air helper springs, air line tubing, inflation valves, and all necessary hardware for a complete installation.
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2009 | INFINITI | QX56 | Base |
| 2005-2009 | Nissan | Armada | LE |
| 2021-2022 | Nissan | Armada | Midnight Edition |
| 2010-2015,2017-2022 | Nissan | Armada | Platinum |
| 2018-2020 | Nissan | Armada | Platinum Reserve |
| 2021-2022 | Nissan | Armada | S |
| 2005-2010 | Nissan | Armada | SE |
| 2005-2006 | Nissan | Armada | SE Off-Road |
| 2011-2015,2017-2022 | Nissan | Armada | SL |
| 2011-2015,2017-2022 | Nissan | Armada | SV |
| 2010 | Nissan | Armada | Titanium |
| 2004-2005 | Nissan | Pathfinder | LE |
| 2004-2005 | Nissan | Pathfinder | SE |
| 2005 | Nissan | Pathfinder | SE Off-Road |
| 2005 | Nissan | Pathfinder | XE |
| 2004 | Nissan | Pathfinder Armada | LE |
| 2004 | Nissan | Pathfinder Armada | SE |
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