The Chevrolet Blazer 4WD is a mid-size SUV that was produced by Chevrolet from 1983 to 2005. It was available as both a 2-door sport utility vehicle and a 4-door SUV. The Blazer 4WD was offered in either a half-ton or three-quarter-ton model, with the latter being known as the K5 Blazer. The Blazer 4WD featured four-wheel drive, and was powered by a variety of engines, including a 4.3 L V6, a 5.0 L V8, and a 5.7 L V8. The Blazer 4WD was one of the most popular SUVs of its era, and is still well-regarded today for its ruggedness, reliability, and off-road capability.