Fits Various vehicles Iridium Pro Spark Plugs-14x26.5x16mm-Heat Range 9 Z1003100 heat-shields Oldsmobile Cutlass (1977

Oldsmobile Cutlass (1977

SKU Number : 4740236 Brand : Crown UPC : 848399007237 Part Type : Shift Fork Kit Dimension : 4

2011 - 2017 Freightliner Cascadia

Ford LT8000F (1988)

Year Make Model Submodel Engine Size 1977 - 1978 GMC C15 Sierra Classic 454/7

Fits Various vehicles Iridium Pro Spark Plugs-14x26.5x16mm-Heat Range 9 Z1003100 heat-shields Oldsmobile Cutlass (1977APR Iridium Pro Spark Plugs are the excellent upgrade for tuned engines. Our spark plugs are made from Iridium, which is one of the strongest materials you can use in this type of application. They run cooler, resist preignition, last longer than other materials with higher melting points, and even require less voltage to produce a strong spark. The electrode is harder and stronger than other materials, can dissipate heat more easily, is better