S28120 HD Air Cross Arm Base for Freightliner(0)No Reviews yet $126.07 Quantity discounts available QuantityPrice SKU: S28120 On Back Order Quantity -+ Add to Cart SPECIAL ORDER Details SMI heavy duty air crossing arm base for Freightliner.Double air diaphragm design.Uses stiffer spring than standard base.Loo... Details Back DetailsSMI heavy duty air crossing arm base for Freightliner.Double air diaphragm design.Uses stiffer spring than standard base.Looks identical to S28110.Does not include blade. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review