SPARK PLUG HARLEY DAVIDSON SCREAMIN EAGLE ST PERFORM-STOC

Screamin' Eagle performance spark plugs feature a double platinum coating for greater erosion resistance and longer life. The "V"-cut ground electrode reduces flame front coating to promote flame spread, and the fine-wire center electrode improves starting and ignitability.

• For standard compression applications

• Feature Grooved Core Technology (RCT) for fouling resistance

• Designed with original equipment-style noise suppression to prevent electrical interference with CB radios and communication equipment

• Works great in racing applications where rich air/fuel conditions are required

• Designed for modified engines that include high-performance carburetors, high-flow air filters, camshafts, exhaust systems, and ignition systems along with stock compression ratios

• Exclusive styling with the Screamin' Eagle® logo

• Sold in pairs

FIT IN:

2015 and later XG

Models equipped with a 2017 and later Milwaukee-Eight engine (including Stage I, II, III, and IV upgrades).

Does not fit 2025 and later FLTRXRRSE models.