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Arnott BAG-F1500508 Air Suspension Helper Spring Kit - Rear
| Brand | Arnott BAG-F1500508 |
|---|---|
| Position | Rear |
| Mounting Hardware Included | Yes |
| Bellows Material | Rubber |
| Grade Type | Regular |
| Mounting Stud Quantity | 6 |
| Bellows Color | Black |
| Bushings Included | No |
| Front Shocks Included | No |
| Front Sway Bar Included | No |
| Rear Coil Springs Included | No |
| Rear Shocks Included | No |
| Rear Sway Bar Included | No |
| Reservoir Included | No |
| Springs Included | No |
| Fits | Ford and Lincoln · 8 vehicles |
Adjustable load support. Air pressure can be tuned for different load capacities.
Ride-enhancing design. Reduces inner-leaf friction for a smoother ride.
Mounting hardware included. Ready for a straightforward installation.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Rear Air Helper Spring Kit for F-150 and Mark LT
The Arnott BAG-F1500508 rear air suspension helper spring kit adds adjustable load support for 2004-2008 Ford F-150 and 2006-2008 Lincoln Mark LT applications. It uses rubber bellows and air pressure tuning to improve rear suspension stability, ride quality, and braking control when the vehicle is carrying weight or towing.
- Rear air helper spring kit for Ford F-150 and Lincoln Mark LT
- Adjustable air pressure for different load demands
- Rubber bellows with black finish
- Mounting hardware included
- Six mounting studs for secure installation
- Helps reduce axle-to-frame bottoming out under load
- Supports steering control and braking effectiveness during weight shift events
How It Works
Arnott BAG-F1500508 is a rear helper air spring kit that adds load-bearing support to the suspension without replacing the factory springs. By increasing air pressure as needed, it reduces inner-leaf friction, softens harsh axle contact, and helps maintain a more controlled rear ride in Ford F-150 and Lincoln Mark LT trucks used for hauling or towing.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Problems It Can Address
- Rear-end sag when carrying cargo or towing
- Bottoming out over bumps or dips under load
- Reduced steering response caused by rear weight transfer
- Braking instability during heavy hauling
- Excessive suspension harshness from leaf-spring friction
Installation Notes
Compatible with rear-position applications only. Verify vehicle year, make, and model before installation on 2004-2008 Ford F-150 or 2006-2008 Lincoln Mark LT. Mounting hardware is included; bushings, front shocks, front sway bar, rear coil springs, rear shocks, rear sway bar, reservoir, and springs are not included. Follow the vehicle-specific service procedure and set air pressure according to load requirements after installation.
Quality Assurance
Arnott manufactures suspension components for load support and ride control applications, and this helper spring kit uses regular-grade rubber bellows for rear suspension service.
| Year | Make | Model | Submodel | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Ford | F-150 | STX | RWD | Rear | — |
| 2008 | Lincoln | Mark LT | — | — | Rear | — |
| 2007 | Ford | F-150 | Lariat | RWD | Rear | — |
| 2007 | Lincoln | Mark LT | — | — | Rear | — |
| 2006 | Ford | F-150 | — | — | Rear | — |
| 2006 | Lincoln | Mark LT | — | — | Rear | — |
| 2005 | Ford | F-150 | — | — | Rear | — |
| 2004 | Ford | F-150 | — | — | Rear | — |
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