Bilstein Spring Black Powder Coat Finish - 37-171865 2007-2018 Jeep Wrangler JK Precision CNC machined and balanced

Precision CNC machined and balanced high-grade steel components

an O-ring sealed idle mixture screw

Washer Finish: Anodize

Engineered from heavy-duty aluminized steel

The housing is made from aircraft-grade aluminum

Bilstein Spring Black Powder Coat Finish - 37-171865 2007-2018 Jeep Wrangler JK Precision CNC machined and balancedFeatures & Benefits Innovative technical designs including pigtail ends, minibloc shapes and central force design High quality chrome vanadium or chrome silicon steel for superior break resistance Hot setting after forming effectively prevents height loss Bilstein B3 OE Replacement coil springs are designed to replace your vehicle's original springs. These coil springs are manufactured to meet all the OE dimensions, spring rates, and design types