Sierra 18-8810-1 MerCruiser 84-81676Q16 V6 4.3L 4.3LX Spark Plug Wire Set 85-03 Harmonic Balancer The stock OMC and MerCruiser

The stock OMC and MerCruiser pulleys are usually a 1/4" wider

All MerCruiser Alpha One Gen II Models 1991 & Up regardless of engine

Supersedes to - 772831

I belive it was used on some trim / tilt pins ends as well

Sierra 18-8810-1 MerCruiser 84-81676Q16 V6 4.3L 4.3LX Spark Plug Wire Set 85-03 Harmonic Balancer The stock OMC and MerCruiserPart Number(s) Included Sierra 18 8810 1 Ignition Spark Plug Wire Set (Aftermarket) Equivalent to MerCruiser 84 43376A11 84 813720A11 84 816761A11 84 816761A16 84 816761Q16 & OMC 0503751 (1994 EST) General Application Compatibility MerCruiser GM V6 4. 3L & 4. 3LX 185hp 205hp Thunderbolt IV & Thunderbolt V Ignition Applications 1985 2003 Other Details Freshwater Used Parts Purchase with confidence! GM 262CID V6 4. 3L 4. 3LX 4. 3LXH 4. 3LH Gen II +