6-Inch Spacer Air Spring Kit with Compressor for Sierra 1500

About this kit

6-Inch Spacer Air Spring Kit with Compressor, fitment-checked

Three parts ship together under 100056WC — the rear air spring kit, a 6-inch 6-degree spacer set, and a wireless air bag controller kit with compressor. Applications include 2007–2018 Sierra 1500 and Silverado 1500 in 4WD or RWD, the 2010–2018 Sierra, and the 2019 Silverado 1500 LD. Minor drilling is part of the install.

With the compressor kit on board, rear pressure is set from a wireless remote rather than a hand pump or shop line, which matters if the load changes through the day. The hardware is the familiar stack: double-convoluted bags with internal bump stops, powder-coated steel brackets, push-to-connect fittings, and DOT-approved air line. Covered trims span Silverado 1500 WT through LTZ and Sierra 1500 SL through Denali. Drilling is required. The system levels the truck under load and leaves the factory tow rating unchanged.