- -20%Door Shock Gas Strut Spring 7142371 for Bobcat A770 S450 S510 S530 S550 S570 S590 S595 S630 S650 S740 S750 S770 S850 T450 T550 T590 T595 T630 T650 T740 T750 T770 T870 LoaderSpecial Price $27.90 Original Price $34.90 Save:$7.00 (20% OFF)Save $7.00(-20%)