Front Coil Spring

The Mopar 52121804AA is a genuine front coil spring, specifically engineered as a direct replacement for compatible Dodge and Ram truck models. The official product specifications list the item dimensions as 20.6 x 7.8 x 7.9 inches and an item weight of 16.80 pounds. Installation involves placing an insulator on the coil spring, seating it in the spring pocket, and connecting it to the lower control arm. After reconnecting the lower control arm to the steering knuckle, the spring compressor can be removed. The process is the reverse of removal, and it is recommended to tighten all fasteners to the proper torque specifications, including wheel lug nuts. A final front-end alignment check and adjustment may be necessary. This coil spring is compatible with 2004-2009 Dodge Ram 2500 models equipped with 5.9L Diesel, 6.7L Diesel, or 5.7L engines, across various 4WD configurations (e.g., Mega Cab, Quad Cab, Regular Cab, SLT, ST). It also fits 2004-2010 Dodge Ram 3500 models with the same engine options, including 2WD and 4WD chassis configurations. For 2011-2013 Ram 3500 models, compatibility extends to those with 6.7L Diesel or 5.7L engines in Crew Cab Chassis 4WD and Regular Cab Chassis 4WD configurations.