How do I adjust the spring rate?

The spring rate is adjusted by changing the air pressure in the air helper springs. This allows you to customize the spring rate based on your load and road conditions. It's as easy as inflating a tire.

What is the load capacity of these air helper springs?

The Firestone Coil-Rite air helper springs support 500-1000 lbs per set. However, you should never exceed your vehicle's Gross Vehicle Weight Rating (GVWR).

What temperature range can these springs withstand?

These Coil-Rite Air Helper Springs are designed to work in a wide range of temperatures. They are rated to function between 180 degrees Fahrenheit (82 degrees Celsius) and -40 degrees Fahrenheit (-40 degrees Celsius).

Firestone Coil-Rite Air Helper Spring Kit Rear 07-17 Chevy/GMC Police Tahoe (W237604147)

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Specifications

Brand: Firestone
Part #: 4147
UPC: 767555105689

Firestone Coil-Rite Air Helper Spring Kit Rear 07-17 Chevy/GMC Police Tahoe (W237604147)

Name: Firestone Coil-Rite Air Helper Spring Kit Rear 07-17 Chevy/GMC Police Tahoe (W237604147)
Brand: Firestone
SKU: firestone-firestone-coil-rite-air-helper-spring-kit-rear-07-17-chevy-gmc-police--t14-167597
Price: 187.33 USD
Availability: BackOrder

$187.33

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Helper springs improve ride quality when towing or hauling. Fits 2007-2017 Chevy/GMC Police Tahoe.

Key Features

Variable Spring Rate — Adjust spring rate by changing air pressure.
Levels Vehicle — Keeps your vehicle level, even under heavy loads.
Improves Handling — More effective braking and handling.
Durable Polyurethane — Made from durable, elastic polyurethane.
500-1000 lbs Capacity — Supports 500-1000 lbs per set.
Wide Temperature Range — Designed to work in temperatures between 180°F and -40°F.