The Bilstein B6 4600 rear shock is a 46mm monotube absorber specified for 2009–2013 Ford F‑150 rear applications as a direct‑fit upgrade for stock‑height trucks. Its monotube construction and velocity‑sensitive, digressive piston are tuned per application to deliver consistent, fade‑free damping. These shocks use OEM springs and mounting hardware and are positioned to improve ride quality, handling and comfort for the listed fitment.
Bilstein 4600 Series 09-13 Ford F-150 Rear 46mm Monotube Shock Absorber