Used and remanufactured engines that fit the 2018 Cadillac Cts. Each unit below is matched to this vehicle, warranty-backed, and shipped with freight quoted at checkout from Peak Powertrain.
Rule of thumb: a engine replacement is usually worth it when the installed cost stays under 40% of what the 2018 Cadillac Cts is worth — most units below beat that comfortably.
Based on 4 recent market listings, an engine for a 2018 Cadillac Cts typically runs $5,894–$7,332, with a median around $6,613.
As a general rule of thumb, an engine replacement on a 2018 Cadillac Cts (luxury segment, vehicle value roughly $13,189–$16,785) is usually worth it when the installed cost stays under about $5,995 — roughly 40% of what the vehicle is worth.
Based on vendor-verified fitment data across 13 listed engines, remanufactured and new engines for this model cover the 2004–2016 model years. Always confirm your exact VIN or engine/transmission code before ordering, since fitment can vary by submodel or engine.
