550-18 Firestone Classic Double-Whitewall Tire
Exceptional car restorations demand authenticity and attention to detail. Many of the most incredible automobiles ever built featured the unique option of double whitewall tires, with a whitewall sidewall on both the inside and outside of the tire. Firestone double whitewall tires are made in original molds to maintain authenticity and feature genuine whitewall construction throughout the tire carcass. Firestone offers the world's best selling line of vintage bias ply tires. Authentic Firestone lettering embossed in the whitewalls where applicable, and these tires are DOT and ECE (European Community) approved where applicable and backed by our life of the tread warranty. Coker Tire Company of the world's leading supplier of classic car tires and wheels and trusted by automobile restorers everywhere. Exact tread pattern may vary slightly on some sizes. These tires are grouped together because they have double whitewall sidewall design (inside and outside sidewall are genuine whitewall construction). Please consult the product images and part numbers in the specifications for more detailed descriptions of speak to a Tire Expert for assistance with your fitment.
Genuine Wide Whitewall Tire
Typically wide whitewalls run all the way to the bead. Narrow whitewalls will stop somewhere before the bead, resulting in a narrower band of exposed white rubber. Bright white rubber is added directly to the tire sidewall during initial construction of the carcass, resulting in a truly integrated, high-quality product after vulcanization. This style was popular into the early sixties, eventually being replaced by narrow whitewalls altogether.
Bias Ply Construction
Bias ply tire construction is a method that was used from the 1900's through the 1970's on passenger cars and light trucks. Bias ply tires feature ply cords that run at a 45 degree angle to the bead, and overlap in a crisscross pattern, depending on how many ply layers are used. This creates a strong tire, but bias ply tires have a tendency to follow breaks or ruts in the pavement. Bias ply tires are the most authentic choice for classic car restorations and traditional hot rod builds. Coker Tire offers a huge variety of bias ply tires for many applications.
Firestone Classic Bias Ply Tires
Firestone Classic bias ply tires feature dozens of sizes and styles, making it one of the most popular authentic tire options for antique and classic cars, as well as hot rods and customs. You’ll find the Deluxe Champion and other models in this iconic product line.
Firestone Tires for Collector Vehicles
The vintage line of Firestone tires fits a wide range of cars, trucks and motorcycles built from the 1900's through the 1970's. Firestone Non Skid tires, Firestone Deluxe Champion tires, Firestone Wide Oval tires and many more famous styles and sizes are available to fit military vehicles, motorcycles and classic commercial trucks. With whitewalls, redlines, raised white letters and other classic sidewall styles, this product line is one of the most extensive and popular brands for classic cars.
Please Note
- Tire mounted on wheel for demonstration purposes only. Wheel and other accessories are not included. Please note that dimensions listed (tread width, section width and overall diameter) are non-scientific and based on an inflated tire, mounted to a wheel. Dimensions may vary due to rim width and inflation pressure. Please note Chemical Guys Tire and Rubber Cleaner and Adams Polish Tire shine has been linked to Whitewall browning and should not be used. We recommend using our line of tire care products.
| SKU | 713920 |
|---|---|
| Weight | 23.000000 |
| GTIN | 00842199103755 |
| Availability Date | 2026-11-30T00:00:00Z |
| Sidewall Style | Double-Whitewall |
| Whitewall Width (in) | 3.250 |
| Tire Construction | Bias Ply |
| Construction Ply | 4 PLY POLY |
| Tire Series | Firestone Classic Bias Ply |
| Rim Diameter | 18 inch |
| Tube Type or Tubeless | Tube Type |
| Product Size | 550-18 |
| Width Bias Ply | 5.50 |
| Brand | Firestone |
| Max Load Capacity (LBS) | 1125@32 psi |
| Section Width (IN) | 5.94 |
| Rim Width (in) | 3.25 |
| Overall Diameter (IN) | 29.13 |
This Firestone 3.25 Inch Double Whitewall comes in the 550-18 size, suitable for the classic and collector vehicles listed below.
About the 550-18 Tire Size
The 550-18 tire size is associated with a range of late-1920s to early-1930s vehicle applications, spanning model years 1929 through 1933. This Firestone 3.25 Inch Double Whitewall | 550-18 pairs that size with a bias ply construction and double whitewall styling, making it relevant for period vehicle applications tied to 550-18. For more detailed information on this tire size, explore the 550-18 tire on Coker Tire Fitment Guide.
Vehicle Fitment for the Firestone 3.25 Inch Double Whitewall | 550-18
The Firestone 3.25 Inch Double Whitewall | 550-18 is available in a tire size associated with a range of classic and collector vehicles. The vehicle applications below are organized by year, make, and model to help identify vehicles associated with the 550-18 size. Explore the linked Make & Model and Year Make & Model pages for more detailed fitment information.
Fitment information should be verified for the specific vehicle before purchase. Confirm tire size, wheel fit, load requirements, overall diameter, and available clearance.
1929–193315 makes · 35 fitments
The 1929–1933 period includes a broad range of 550-18 applications across Auburn, Buick, Chrysler, Dodge, Gardner, Graham, Hudson, Hupmobile, Jordan, Nash, Oakland, Reo, Rockne, Studebaker, Willys, and Willys-Knight. These applications show the spread of vehicles associated with the 550-18 size during the early 1930s.
Auburn
Auburn applications in this period include the 80 Series and 85 Series associated with the 550-18 size.
Buick
Buick fitment in this period is represented by the 50 Series.
Chrysler
Chrysler applications in this period include the 65 Series, 66 Series, 70 Series, and CI associated with the 550-18 size.
Dodge
Dodge applications in this period include the DC, 8 Cyl., and DL associated with the 550-18 size.
Gardner
Gardner applications in this period include the 136 & 140, 136, and 148 associated with the 550-18 size.
Graham
Graham applications in this period include the Special and Standard associated with the 550-18 size.
Hudson
Hudson fitment in this period is represented by the 8 Cyl. associated with the 550-18 size.
Hupmobile
Hupmobile fitment in this period is represented by the 216 Series.
Jordan
Jordan applications in this period include the E, T, and 80 associated with the 550-18 size.
Nash
Nash applications in this period include the 1070 and 1170 associated with the 550-18 size.
Oakland
Oakland applications in this period include the 8 Cyl. and V8 associated with the 550-18 size.
Reo
Reo fitment in this period is represented by the 15 Series.
Rockne
Rockne fitment in this period is represented by the 75 Series.
Studebaker
Studebaker applications in this period include the 55 Series and 62 Series associated with the 550-18 size.
Willys
Willys fitment in this period is represented by the 88 Series.
Willys-Knight
Willys-Knight fitment in this period is represented by the 95 Series.









