Buick Used Engines

Shop used Buick engines for the Regal, LaCrosse, Century, Park Avenue, LeSabre, Skylark and Lucerne, covering model years 1990 through 2019. We list 446 Buick units across 24 model lines, from the front-drive V6 sedans of the 1990s up to the later LaCrosse.

Buick is a GM division, so most of these engines were shared with Chevrolet, Pontiac and Oldsmobile of the same era, which keeps interchange well documented and cross-references easy to find. If you are looking at a GM V8, our Chevrolet LS engine family guide is the place to start.