As an automotive enthusiast, i tested this product and it proved to be a highly efficient component for Blazer engines .The delivery was prompt, and the installation was hassle-free. It works well with Chevrolet, Oldsmobile, and Pontiac models, too. However potential buyers should be aware that this may not be the best fit for other car models outside these brands. Overall, this is a reliable replacement part to fix your car's engine issues..See full review