Check the listing for details. 87-91019A3 Ignition Sensor Kit Replacement for MerCruiser Thunderbolt Distrib.... Condition: New. Listed at 45.39 USD. 87-91019A3 Ignition Sensor Kit Replacement for MerCruiser Thunderbolt Distributor on 4.3L, 5.0L, 5.7L, 7.4L, 8.2L Engine - Replace 87-91019A2, 87-91019A6, 87-892150Q02, 87-861780Q4 - Ignition Pickups ✓ Free 60 Day Returns ✓ Free Express Shipping Description: Features: REPLACEMNET IGNITION SENSOR KIT - Ignition pickups are located inside the distributor and function as the trigger for the ignition system to produce spark. When something bad happens,such as,engine stalling,or do not start the vessel,they means you need to replace a new ignition sensor.COMPATIBLE WITH FOLLOW MODELS - The ignition Sensor is used on Mercruise Thunderbolt I IV, Gen VI, MR, MAG, ALPHA, BRAVO, for 1981 - 1997 V-6 V-8 205 260 240 260 305 320 350 425 450 454 465 500 502 525 575 600, 4.3L 5.0L 5.7L 7.4L 8.2L engines.REPLACE PART NUMBER - 87-91019A3, 87-91019A2, 87-91019A6;87-892150A02,87-861780A2,87-861780A4;87-892150Q02,87-861780Q4;Sierra 18-5116,Mallory 9-29804.PREMIUM QUALITY - While it is not a genuine Mercruiser part, it's a direct replacement and will fit and work exactly like the factory part. Designed to meet or exceed OEM standars, 100% tested before shippping.BUY WITH CONFIDENCE - This product comes complete with 12 months warranty. If it ever fails on your Mercruiser simply contact us for a replacement. Product Details: Brand: Tutor AutoStyle: ModernMounting Type: Flange MountUPCManufacturer: Skyee-bluePackage Dimensions ‏ : ‎ 10.98 x 4.17 x 3.5 inches; 4.66 ouncesDate First Available ‏ : ‎ January 10, 2021Manufacturer ‏ : ‎ Skyee-blueBest Sellers Rank: #75,017 in Automotive (See Top 100 in Automotive) #33 in Automotive Replacement Distributors#33 in Automotive Replacement DistributorsCustomer Reviews: 4.2 4.2 out of 5 stars 134 ratings