Catalogue reference. Availability, exact specification and OEM or aftermarket supply are confirmed in your quotation.
Air spring
springPart number: 4173
Firestone 4173 Coil-Rite is a rear air helper spring kit designed to fit inside existing coil springs. Its adjustable polyurethane air springs provide supplemental load support. The kit includes air springs, supports, hardware, air line and separate manual inflation valves. Verify suitability for the vehicle and suspension before ordering.
Looking for Firestone 4173? This catalogue reference is listed under spring. Send the part number and your equipment details so we can confirm the specification, availability and a quotation including shipping.
Availability on request
Technical specifications
| Manufacturer | Firestone |
|---|---|
| Part number | 4173 |
| Category | Brakes & chassis |
| Availability | On request |
| Reference basis | Manufacturer part-number reference; supply origin requires quotation confirmation |
| Installation position | Rear axle |
| Air spring material | Polyurethane |
| Air springs per kit | 2 |
| Maximum load support | 1,000 lb; vehicle weight ratings must not be exceeded |
| Inflation | Manual, with separate inflation valves |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
What is included in the Firestone 4173 air spring kit?
The 4173 is a rear Coil-Rite helper spring kit with two air springs, supports, hardware, air line and separate valves for manual inflation. Confirm the contents supplied when requesting a quote.
Does the Firestone 4173 increase the vehicle’s load rating?
The kit is rated for up to 1,000 lb of load support, but it does not increase the vehicle’s gross vehicle weight rating. Do not exceed the vehicle manufacturer’s limits.
Can Firestone 4173 be used with lifted or modified suspension?
Do not assume it will fit a lifted suspension. Suitability depends on the vehicle and its springs. Provide the VIN or serial number, lift details, and rear coil spring height and inside diameter for verification before ordering.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.