Profile: Engquist Tractor Service, Inc. specializes in providing heavy duty diesel engine machine shop services. We produce diesel overhaul kits and engine exchange componets. Our seat machine is used to accurately machine diesel engine head. Our connecting rods are steel shot peened, magna-fluxed and crank pin end. We also deal with new and reconditioned diesel engines. Our models are used in agricultural applications. We also offer block boring, honing, cleaning and rebuilding services.