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Removed from a 140 MerCruiser 3
Make sure you are using the correct thrust washer
7 1/4" X 3 1/4"
1976-1982 Models used a different camshaft seal set
Later Model that used Square / Square Pin
MerCruiser Spark Plug Wire Set V8 84-816608Q61 454 502 Thunderbolt IV V 1981-97 Harmonic Balancer Removed from a 140 MerCruiserPart Number(s) Included Quicksilver MerCruiser 84 816608Q61 Spark Plug Wire Set Application & Compatibility GM V8 7. 4L 454 & 8. 2L 502 engines with Thunderbolt IV & Thunderbolt V ignition (1981 1997) (Red Wires) Purchase with confidence! This is a NEW (New Old Stock) part from our collection of Quicksilver Mercury Kiekhaefer Mariner Outboard parts & MerCruiser Alpha One & Bravo Sterndrive boat parts we have on hand.
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