D6.6 1/4 FIRESTONE AIR SPRING.
 
Airbag can support 690Kg at 100psi, height range 2.8" to 8.5", check new applications with Airbag Man prior to ordering
 
Top Threads 3/8" UNC, bottom thread 3/8" UNC, do not overtighten fasteners as the airbag may be damaged
Top air connection 1/4" NPT, 6.6" maximum OD.