Spark Plug Wires & Sets

OEM Quicksilver/Mercury 555 Spark Plug Wires  84-863656A 1 Spark plug set 863656A1 is for use on V-8 MerCruiser stern drive and inboard engines (5.0L, 5.7L and 6.2L MPI) with ECM 555 (serial number 0M300000 through 2A455878). 

OEM Quicksilver/Mercury Spark Plug Wires  84-816761Q17 Spark plug set 816761Q4 is for use on V-8 MerCruiser (LH) engines (305 and 350 CID) with Thunderbolt IV ignition systems (1993 through 2003). 

OEM Quicksilver/Mercury Delco Spark Plug Wires  84-816608Q68 Spark plug set 816608Q68 is for use on V-8 (350, 454 and 502 CID) General Motors marinized engines with Delco HEI ignition systems (1993 through 2010). 

OEM Quicksilver/Mercury Spark Plug Wire Kit   84-816608Q83 Spark plug set 816608Q83 is for use on V-8 MerCruiser engines (305, 350 and 377 CID) made by General Motors with Mercury ignition systems (1999 through 2001). T

OEM Quicksilver/Mercury Spark Plug Wires  84-816761Q16 Spark plug set 816761Q16 is for use on V-6 MerCruiser engines with Thunderbolt IV ignition systems (1985 through 2003). 

OEM Quicksilver/Mercury Spark Plug Wires  84-816761Q14 Spark plug set 816761Q14 is for use on 3.0L and LX versions of MerCruiser engines with Delco EST ignition systems (1990 through 2016). 

OEM Quicksilver/Mercury Spark Plug Wire Kit  84-816608Q61 Spark plug set 816608Q61 is for use on vintage, V-8 (454-502 CID) General Motors marinized engines with Thunderbolt IV and V ignition systems (1981 through 1997). 

OEM Quicksilver/Mercury Spark Plug Wires  84-847701Q17 Spark plug set 847701Q17 is for use on V-8 MerCruiser 454 Magnum MPI Horizon inboard engines (1998).

OEM Quicksilver/Mercury Spark Plug Wire Set  84-863656A 2 Spark plug set 863656A2 is for use on 4.3L MPI MerCruiser stern drive engines.

OEM Quicksilver/Mercury 350 Mag Spark Plug Wires  84-847701Q24 Spark plug set 847701Q24 is for use on V-8 MerCruiser 350 Magnum, Horizon inboard engines (1999 through 2007). 

OEM Quicksilver/Mercury Delco Spark Plug Wires  84-816608Q70 Spark plug set 816608Q70 is for use on V-8 (305 and 350 CID) General Motors marinized engines with Delco HEI ignition systems (1995 through 1998).

OEM Quicksilver/Mercury Spark Plug Wires With Points  84-816761Q 5 Spark plug set 816761Q5 is for use on 4-cylinder MerCruiser engines with conventional points ignition systems (1963 through 1995).

OEM Quicksilver/Mercury Spark Plug Wires  84-816761Q 4 Spark plug set 816761Q4 is for use on V-8 MerCruiser (LH) engines (305 and 350 CID) with Thunderbolt IV ignition systems (1981 through 1992).

OEM Quicksilver/Mercury Spark Plug Wires   84-847701Q25 Spark plug set 847701Q25 is for use on V-8 MerCruiser 500 EFI engines (1998 through 2004) and MerCruiser 575 SCi engines (2000 through 2005).

OEM Quicksilver/Mercury Spark Plug Wires  84-816608Q71 Spark plug set 816608Q71 is for use on V-8 350 CID General Motors marinized engines with Delco HEI ignition systems (1995 through 1998).

OEM Quicksilver/Mercury Spark Plug Wire Kit  84-816608Q78 Spark plug set 816608Q78 is for use on MerCruiser Black Scorpion Tow Sports engines with Delco HEI ignition systems (1997 through 1998).

OEM Quicksilver/Mercury Spark Plug Wires  84-816761Q 3 Spark plug set 816761Q3 is for use on V-8 MerCruiser (RH) engines (305 and 350 CID)withThunderbolt IV ignition systems (1981 through 1993).

OEM Quicksilver/Mercury Spark Plug Wires  84-816761Q12 Spark plug set 816761Q12 is for use on V-8 MerCruiser tow Sports inboard engines (5.7L) made by General Motors with conventional points ignition systems (1985 through 1995). 

OEM Quicksilver/Mercury V8 High-Performance Spark Plug Wires  84-847701Q 7 Spark plug set 847701Q7 is for use on V-8 MerCruiser High Performance engines (454, 502, 540 and 572 CID) with Thunderbolt IV ignition systems (1990 and newer).

OEM Quicksilver/Mercury Spark Plug Wire Kit  84-816608Q80 Spark plug set 816608Q80 is for use on MerCruiser 5.7L Inboard and Tow Sports engines with Thunderbolt IV ignition systems (1998 through 2010).