Boasting exemplary performance, stability, and innovation, the BMW E46 supersedes its competitors, primarily due to the components under the hood. BMW E46 engines are noticeably more rigid than E36 328 engines and have aluminum suspension components that reduce unsprung weight. The most powerful engine in 316 models is the N46B18, a straight-4 DOHC piston engine that produces 114 horsepower at 5,500 RPM and 129 pounds per foot of torque at 3,750 RPM. The 318 models graduate to the N46B20, which is more powerful with 154 horsepower at 6,400 RPM and 148 pounds per foot of torque at 3,600 RPM. If you want a much more powerful engine, the M54 is one of the most powerful engines in the E46 line. A straight-6 DOHC piston engine, the M54 offers premium features, including an electronic throttle control and variable valve timing. These engines are common in the E46 M3 models, with the most powerful version, the S54B32, achieving staggering output of 342 horsepower at 7,900 RPM and 269 pounds per foot of torque at 4,900 RPM. BMW E46 engines vary, and diesel versions such as the M57TUD30 are also available. The large inventory on eBay includes BMW E46 M3 engines and many other models.Shop the extensive inventory of motors, parts, accessories, and complete engines for BMW!