AB1DK25A-8709, Air Spring Rolling Lobe, Alternative to (8709, 1R13-159, 64645, S21800)

The AB1DK25A-8709 Rolling Lobe Air Spring is a premium heavy-duty air suspension spring engineered to restore proper ride height, improve load support, and reduce vibration for commercial trucks and trailers. Built to meet or exceed OEM specifications, it features a durable rolling lobe design for long-lasting performance and is a direct replacement for Firestone 8709, Goodyear 1R13-159, ContiTech 64645, and Hendrickson S21800 air spring applications.