NEW MERCRUISER DISTRUBUTOR CAP amp; ROTOR KIT For Mercruiser V8 with Thunderbolt l amp; lV Ignition Includes Distributor Cap, Rotor, Gasket, amp; Screws Brass Terminals Direct OE aftermarket replacement Exact item is Pictured Replaces Part 805759Q3 805759T3 Sierra 18-5273 Fits: All 5.0 5.7 7.4 8.2 V8 W/ Thunder Bolt Ignition 1980-2003