Best Quality Replacement Heater Control Knobs Black Bakelite Style Knobs Correct Profile For 1959 & 1960 Correct Small Lettering Font For 1959-1960 Set Of 4 Includes: FAN, DEF, TEMP & AIR Heater control knobs are notorious for breaking off in your hand when you least expect it and that bare control lever is no fun to try and move without the knob. The El Camino Store has this set of climate control knobs to replace your broken or lost originals perfectly. So, if your 1959 or 1960 El Camino is missing a knob, The El Camino Store has the best replacement set of knobs along with other great Chevrolet parts always at the best possible price.