Bilstein OE Replacement Air Suspension Spring - 40-273778 Fits select: 2015-2019 PORSCHE MACAN S

B3 Series Rear Passenger Side OE Replacement Air Spring (40-273778) by Bilstein. Quantity: 1 per Pack. The Bilstein B3 air spring provides a perfect driving experience under high load, due to the constant counter-pressure in the bellows of the air spring. This is an optimum OE replacement for vehicles in which the air spring and shock absorber are installed as separate units. The delicate axial bellows of the air spring provide very sensitive spring behaviour with a comparably low rolling radius. This ensures optimum functionality even in confined working chambers. Due to the permanent load (contraction, extension, different pressures and temperatures), the material is worn out and may eventually leak. If the air bellows cannot be inflated any more, the vehicle is no longer fit to drive. Technical further developments from the original application to today’s part are usually easily recognizable. Due to higher efficiency and Bilstein’s obligation to increasingly employ environmentally f