Smeding Diesel TrueFlow Bundle Engine Components~Lifters 1990 GMC K2500 Sierra SLE

1990 GMC K2500 Sierra SLE

1987 Chevrolet R20 Suburban Custom Deluxe

old rubber hoses are prone to failure from years of abuse

Mishimoto DuraCore™ technology is the synthetic material that comprises the innermost layer of all Mishimoto silicone diesel boots

3L Powerstroke liquid-to-liquid oil cooler transfers heat out of the oil and into engine coolant to properly regulate fluid temperatures

Smeding Diesel TrueFlow Bundle Engine Components~Lifters 1990 GMC K2500 Sierra SLESmeding Diesel TrueFlow Bundle If you're looking for an all in one cure to the restrictive factory Cummins horn and highly dangerous factory grid heater, look no further. This kit will provide you with everything you need to ease you and your trucks mind. doubles the flow of your factory horn increases throttle response includes all hardware and gaskets needed increases boost aluminum casted for superior cooling and strength 5 1 8" ALL PURPOSE npt