---
product_id: 368613650
title: "805759Q3 Distributor Cap Kit - Marinized V-8 Engines by General Motors with Thunderbolt IV and V HEI Ignition Systems"
brand: "quicksilver"
price: "₨78571"
currency: LKR
in_stock: true
reviews_count: 5
category: "Quicksilver"
url: https://www.desertcart.lk/products/368613650-805759q3-distributor-cap-kit-marinized-v-8-engines-by-general
store_origin: LK
region: Sri Lanka
---

# Marine-grade RFI interference resistance PBT/PET plastic blend for max strength Solid brass inserts resist corrosion 805759Q3 Distributor Cap Kit - Marinized V-8 Engines by General Motors with Thunderbolt IV and V HEI Ignition Systems

**Brand:** quicksilver
**Price:** ₨78571
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your marine engine’s potential with Quicksilver precision!

## Quick Answers

- **What is this?** 805759Q3 Distributor Cap Kit - Marinized V-8 Engines by General Motors with Thunderbolt IV and V HEI Ignition Systems by quicksilver
- **How much does it cost?** ₨78571 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/368613650-805759q3-distributor-cap-kit-marinized-v-8-engines-by-general)

## Best For

- quicksilver enthusiasts

## Why This Product

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

## Key Features

- • **Precision OEM Fit:** Manufactured to Mercury Marine’s exacting specs for seamless compatibility with GM marinized V-8 engines and Thunderbolt IV/V HEI ignition systems.
- • **Engineered for Endurance:** Crafted from advanced PBT and PET plastics to resist warping and deliver long-lasting durability in harsh marine environments.
- • **Corrosion-Resistant Power:** Solid brass inserts ensure unbeatable resistance to corrosion and electrical pitting, keeping your ignition system flawless season after season.
- • **Complete Ignition Refresh Kit:** Includes distributor cap, rotor, and gasket—everything you need to restore peak ignition efficiency and avoid costly misfires.
- • **Marine-Grade Electronic Shielding:** Designed to block RFI interference, protecting your onboard electronics and ensuring smooth, reliable engine performance.

## Overview

The Quicksilver 805759Q3 Distributor Cap Kit is a premium OEM-grade ignition upgrade designed specifically for GM marinized V-8 MerCruiser engines with Thunderbolt IV and V HEI systems. Featuring a durable PBT/PET plastic cap, corrosion-resistant brass inserts, and RFI shielding, this kit ensures reliable spark delivery and long-lasting performance in demanding marine conditions. Complete with rotor and gasket, it’s the trusted choice for professionals seeking to maintain peak engine efficiency and avoid misfires on the water.

## Description

This distributor cap kit contains the cap, rotor and cap gasket. Fits Marinized, V-8 MerCruiser Engines made by General Motors with Thunderbolt IV and V HEI Ignition Systems. See your owner’s manual for replacement information and directions. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are d through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind.

Review: Had a power and misfire issues…change the part with this one and all is working perfect. My engine is a mercruiser 5.7L black scorpion
Review: The 805759Q3 Distributor Cap Kit (and similar OEM‑style distributor cap kits for marinized GM V8 engines) is a solid choice for refreshing your engine’s ignition system. Designed to fit marinized V8 MerCruiser engines from General Motors equipped with Thunderbolt or Delco HEI ignition systems, this kit includes the distributor cap, rotor, and gasket you need to get things running smoothly again. Built to meet original equipment specifications, the durable plastic cap resists warping from heat and vibration, and the brass inserts help fend off corrosion and electrical pitting — important for marine environments where moisture and salt air can wreak havoc on ignition parts. Pros: OEM‑grade fit and materials, corrosion‑resistant construction, restores ignition performance Cons: Requires proper fitment to your specific engine type — check your manual before ordering Bottom Line: A dependable and straightforward way to keep your boat’s V8 running strong. This distributor cap kit gives you renewed spark performance and durable construction that’s up to the challenge of marine us

## Features

- Cap is made from a blend of PBT and PET plastics for increased strength, stiffness and resistance to warpage
- Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your MerCruiser engine
- Solid brass inserts resist corrosion and electrical pitting for long service life
- High strength to weight ratio for durability and resistance to thermal ing
- Designed to resist RFI interference with onboard electronics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001HBSXKK |
| Batteries Included? | No |
| Brand | Quicksilver |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (520) |
| Date First Available | 1 January 2024 |
| Department | unisex-adult |
| Included Components | Cap with elbow piece; Gasket |
| Is Discontinued By Manufacturer | No |
| Item model number | 805759Q3 |
| Manufacturer | Quicksilver |
| Material Type | Other |
| Number of Items | 1 |
| Product Dimensions | 20.32 x 13.34 x 9.53 cm; 315.25 g |
| Size | Unspecified |
| Style | Modern |
| Weight | 0.69 Pounds |

## Product Details

- **Brand:** Quicksilver
- **Colour:** Black
- **Exterior finish:** Metal
- **Item dimensions L x W x H:** 20.3 x 13.3 x 9.5 centimeters
- **Material:** Other

## Images

![805759Q3 Distributor Cap Kit - Marinized V-8 Engines by General Motors with Thunderbolt IV and V HEI Ignition Systems - Image 1](https://m.media-amazon.com/images/I/814d7SKSsJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by Y***E on 15 September 2023*

Had a power and misfire issues…change the part with this one and all is working perfect. My engine is a mercruiser 5.7L black scorpion

### ⭐⭐⭐⭐⭐ Review
*by J***I on 13 February 2026*

The 805759Q3 Distributor Cap Kit (and similar OEM‑style distributor cap kits for marinized GM V8 engines) is a solid choice for refreshing your engine’s ignition system. Designed to fit marinized V8 MerCruiser engines from General Motors equipped with Thunderbolt or Delco HEI ignition systems, this kit includes the distributor cap, rotor, and gasket you need to get things running smoothly again. Built to meet original equipment specifications, the durable plastic cap resists warping from heat and vibration, and the brass inserts help fend off corrosion and electrical pitting — important for marine environments where moisture and salt air can wreak havoc on ignition parts. Pros: OEM‑grade fit and materials, corrosion‑resistant construction, restores ignition performance Cons: Requires proper fitment to your specific engine type — check your manual before ordering Bottom Line: A dependable and straightforward way to keep your boat’s V8 running strong. This distributor cap kit gives you renewed spark performance and durable construction that’s up to the challenge of marine us

### ⭐⭐⭐⭐⭐ Review
*by K***D on 4 March 2026*

Works well on my 5.7l Mercruiser

## Frequently Bought Together

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-14*