Loading        
text.skipToContent text.skipToNavigation
 
 
Firestone logo

Firestone Air Spring - Double Convoluted, 3.8 in Compressed Length, Model 21-2

#FIRW01-358-6801

Product Overview


Although air springs are produced in single, double, triple convoluted, and reversible sleeve styles, only those manufactured by Firestone Industrial Products Company bear the trademark “Airide™.” Airide springs were pioneered and perfected by Firestone, and only Firestone offers a complete line of Airide springs, with replacement springs available for virtually every vehicular air suspension system. Today, Airide springs are used by practically all manufacturers who offer air suspension on their vehicles. While it may appear simple, an air spring is actually a highly sophisticated and complex product. Even slight changes in design, methods of construction, or materials used can make vast and significant differences in performance. It makes good sense to specify Airide springs by Firestone. That trade name on an air spring guarantees you the benefit of the very latest technical developments and improvements. It is your assurance of a product not only engineered and perfected to perform, but which also has a long history of superior performance in actual use.Air Spring, Double Convoluted Air Spring, 3.8 in Compressed Length, 14.5 in Width

See More
See Less

Features & Benefits


  • Manufactured to Meet or Exceed O.E.M. Specifications in Function, Form & Fit.
  • Today, Airide Springs are Used by Practically All Manufacturers Who Offer Air Ride Suspensions on Their Vehicles.
  • Airide Springs Were Pioneered & Perfected by Firestone, and Only Firestone Offers a Complete Line of Airide Springs.

Specifications


Air Inlet 1/4 in NPT
Air Spring Type Double Convoluted
Application Watson & Chalin AS-0021
Bead Plate (Top) & Deflated Bellows O.D. 11.31 in @ 14.5 in
Bellows 2/21
Bottom Plate Diameter 11-5/16 in
Bottom Plate Hole/Stud Qty 4
Bottom Stud Configuration 3/8 in-16 UNC
Compressed Length 3.8 in
Diameter 14-1/2 in
Firestone Bellows Number 21-2
Loading Capacity at 20 psig 1858 lb-ft
Loading Capacity at 60 psig 5574 lb-ft
Material Natural Rubber
Piston (Bottom) Mounting Bolt Dimensions Center to Center 6-1/4 in
Temperature 57°C @ -54°C (134.6°F @ -65.2°F)
Top Bead Plate Hardware Key 4 x Threaded Hole 3/8-16 in Blind Nut on Bead Plates 1/2-13 in Pistons
Top Plate Diameter 11-5/16 in
Weight 21.1 lb (9.57 kg)
Width 14.5 in
Capacity 8361 lb-ft at 90 psig
Fits Models Model 21-2
Product Category Air Spring

Interchanges & Equivalent parts:


2B14-365
2B14365
354-6801
6801
AS-4451
FIR6801
AS0021
AS6801
B2734
FI W01 358 6801
FS6801
FSIW013586801
G2296801500
W013586801
3040-W013586801
8030160
AS-0021
FD 530-30 451
TR6801
TWDW013586801
S2734
1685183C1
57006801
B-2734
FD 530 30 451
SC2079
W01-358-6801
1003586801C
See more