High Performance Tune Up Kit. Fits 4.3 V6 Gen+ Vortec with "Flat" distributor cap. 8mm Hi-Temp spark plugs wires. Distributor cap with brass contacts.
Screws for cap and rotor. 8 Iridium spark plugs equivalent to AC Delco 41-993. FITS ALL MERCRUISER 4.3L MPI V6 ENGINES WITH FLAT CAP DISTRIBUTOR CAP AS SHOWN IN THE PICTURE.
This tune up kit will give your engine an increase in performance, fuel economy and better idle quality. There is no better performance improvement available for such a low price!