---
product_id: 159419045
title: "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"
brand: "tutor auto"
price: "₩100939"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/159419045-87-91019a3-ignition-sensor-kit-replacement-for-mercruiser-thunderbolt-distributor
store_origin: KR
region: South Korea
---

# OEM standards Direct replacement Compatible with multiple models 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

**Brand:** tutor auto
**Price:** ₩100939
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite Your Adventure with Confidence!

## Quick Answers

- **What is this?** 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 by tutor auto
- **How much does it cost?** ₩100939 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/159419045-87-91019a3-ignition-sensor-kit-replacement-for-mercruiser-thunderbolt-distributor)

## Best For

- tutor auto enthusiasts

## Why This Product

- Trusted tutor auto brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Installation:** Quickly replace your old sensor without hassle.
- • **Quality Assurance:** 100% tested to meet or exceed OEM standards for peace of mind.
- • **Warranty Included:** Enjoy a full 12-month warranty for worry-free boating.
- • **Broad Compatibility:** Designed for a wide range of MerCruiser models from 1981 to 1997.
- • **Reliable Performance:** Ensure your engine runs smoothly with this premium ignition sensor kit.

## Overview

The 87-91019A3 Ignition Sensor Kit is a high-quality replacement designed for MerCruiser Thunderbolt distributors, compatible with various V-6 and V-8 engines from 1981 to 1997. This kit meets or exceeds OEM standards and comes with a 12-month warranty, ensuring reliable performance and peace of mind for boat enthusiasts.

## Description

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

## 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 Auto
- **Material:** Plastic, Metal
- **Style:** Modern
- **Mounting Type:** Flange Mount
- **Output Type:** Digital

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/51DF3TmxxfL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/51774v05kDL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/51oC7NV6eSL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/51qVRLcIb5L.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/419qquRNf+L.jpg)

## Questions & Answers

**Q: The one this is replacing didn’t have the ground wire. Do I need to ground this to something, if so, what?**
A: The one on my boat had a ground I would just ground it to a bolt on the motor

**Q: Will this work on a 2002 mercruiser 4.3 liter v-6 with a thunderbolt v ignition system?**
A: I am not shore my boat has the thunderbolt iv on it and it is a 1988

**Q: I have a 1994 4.3l with thunderbolt iv. is this compatible with my system?**
A: I Believe so I think my boat has the thunderbolt I’ve also

## Frequently Bought Together

- 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
- Replacement Inboard Ignition Coil - Compatible with MerCruiser Thunderbolt IV and V Ignition Systems with HEI - Replaces 18-5438, 392-805570A2, 392-7803A4, 392-805570A1, 72115, 40511
- 815407Q5 Distributor Cap and Ignition Rotor Kit for Marinized 4.3L V6 Engines with Thunderbolt IV and V HEI Ignitions - Replaces 815407Q5, 815407A2, 815407Q02,18-5274

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-26*