Vixen Air 1/2" NPT Single Air Port Suspension Air Spring/Air Bag with Internal Bump Stop/Jounce Bumper Dual Pack VXD2500SDP

These air bags can hold up to 600 PSI and they are extremely durable and resistant to damage from wear and tear, inflation shock, or just outright abuse. Their outstanding construction provides extreme durability and reliability. Featuring a large ½" air port for fast response, a stroke of 7.7" for the best performance and internal bump stop which offers many benefits such as, eliminating harsh jarring on rough roads and providing additional stability while towing or hauling heavy loads. Definitely an air bag designed to outperform! Dual Value Pack It's always recommended that you match your front two or rear two air springs in a 2 or 4-way set up. Buying two at the same time not only saves you money, but ensures you get pairs of identical air springs. ½" NPT Air Port These air springs feature an extra large ½" NPT port for installation. Be sure to use ½" air line for maximum performance. Internal Bump Stop 2500-Style Bolt Pattern When used in a 4 spring setup on a truck or SUV, 2500-style bags are normally used for the front two springs. They feature top bolt points that are 1-¾" apart and a single centered bolt point at the bottom. Suspension Air Spring (Dual Pack) ½" NPT Single Air Port 3/8-16" UNC Mounting Threads 600 PSI Maximum Restrained Pressure 294-2096 lbs Load Range 7.7" Usable Stroke Internal Bump Stop (Jounce Bumper) More Responsive than Comparable Sized Air Springs Dimensions: Height: 4" (Min) - 9.5" (Max) Diameter: 6" (0 PSI) - 7" (100 PSI) Never exceed more than truck manufacturers maximum load recommendations.