---
product_id: 71174626
title: "Quicksilver 805759Q3 Distributor Cap Kit for Marinized V8 Engines by General Motors w/Thunderbolt IV and V HEI Ignition Systems"
brand: "quicksilver"
price: "A$136"
currency: AUD
in_stock: true
reviews_count: 13
category: "Quicksilver"
url: https://www.desertcart.com.au/products/71174626-quicksilver-805759q3-distributor-cap-kit-for-marinized-v8-engines-by
store_origin: AU
region: Australia
---

# Corrosion-resistant brass inserts Marine-grade RFI interference protection OEM-grade fit & finish Quicksilver 805759Q3 Distributor Cap Kit for Marinized V8 Engines by General Motors w/Thunderbolt IV and V HEI Ignition Systems

**Brand:** quicksilver
**Price:** A$136
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your marine engine’s potential with OEM precision and lasting durability!

## Quick Answers

- **What is this?** Quicksilver 805759Q3 Distributor Cap Kit for Marinized V8 Engines by General Motors w/Thunderbolt IV and V HEI Ignition Systems by quicksilver
- **How much does it cost?** A$136 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/71174626-quicksilver-805759q3-distributor-cap-kit-for-marinized-v8-engines-by)

## 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:** Engineered to meet Mercury Marine specs for seamless integration with GM marinized V8s.
- • **RFI Shielded Design:** Built to minimize radio frequency interference, protecting sensitive onboard electronics.
- • **Durable Composite Build:** PBT and PET plastic blend ensures superior strength, stiffness, and warpage resistance under marine conditions.
- • **Complete Ignition Refresh Kit:** Includes distributor cap, rotor, and gasket for a hassle-free upgrade that restores peak spark performance.
- • **Corrosion-Resistant Brass Inserts:** Solid brass terminals prevent electrical pitting and corrosion, extending ignition system life.

## Overview

The Quicksilver 805759Q3 Distributor Cap Kit is a premium replacement ignition component designed specifically for marinized GM V8 MerCruiser engines with Thunderbolt IV and V HEI systems. Crafted from a high-strength PBT/PET plastic blend and featuring corrosion-resistant brass inserts, it delivers reliable spark performance while resisting warpage and marine environmental challenges. This kit includes the distributor cap, rotor, and gasket, ensuring a complete, OEM-spec upgrade that protects your engine’s ignition system from RFI interference and corrosion for long-lasting marine reliability.

## Description

This distributor cap kit contains the cap, rotor and cap gasket. Fits Marinized, V8 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 tested 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: Great product / no issues / runs great - Great OEM quality and a good price
Review: GREAT - 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
- Designed to resist RFI interference with onboard electronics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001HBSXKK |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #116,526 in Automotive ( See Top 100 in Automotive ) #17 in Automotive Replacement Distributor Cap & Rotor Kits |
| Brand | Quicksilver |
| Brand Name | Quicksilver |
| Color | Unspecified |
| Customer Reviews | 4.5 4.5 out of 5 stars (529) |
| Date First Available | October 3, 2008 |
| Exterior Finish | Brass |
| Fishing Technique | Spinning, Casting |
| Global Trade Identification Number | 00745061040526 |
| Included Components | Cap with elbow piece; Gasket |
| Item Dimensions LxWxH | 8 x 5.25 x 3.75 inches |
| Item Package Dimensions L x W x H | 7.05 x 4.8 x 3.94 inches |
| Item Weight | 0.7 Pounds |
| Item dimensions L x W x H | 8 x 5.25 x 3.75 inches |
| Manufacturer | Quicksilver |
| Material | Various Materials |
| Model Name | 805759Q3 Distributor Cap Kit - Marinized V-8 Engines by General Motors with Thunderbolt IV and V HEI Ignition Systems |
| Number of Items | 1 |
| OEM Part Number | 805759Q3 |
| Package Weight | 0.33 Kilograms |
| Part Number | 805759Q3 |
| Size | Unspecified |
| Style | Modern |
| Suggested Users | Boat Engine Parts and Accessories |
| UPC | 745061040526 |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** Quicksilver
- **Color:** Unspecified
- **Exterior Finish:** Brass
- **Item dimensions L x W x H:** 8 x 5.25 x 3.75 inches
- **Material:** Various Materials

## Images

![Quicksilver 805759Q3 Distributor Cap Kit for Marinized V8 Engines by General Motors w/Thunderbolt IV and V HEI Ignition Systems - Image 1](https://m.media-amazon.com/images/I/61CoeUvlLVL.jpg)
![Quicksilver 805759Q3 Distributor Cap Kit for Marinized V8 Engines by General Motors w/Thunderbolt IV and V HEI Ignition Systems - Image 2](https://m.media-amazon.com/images/I/712JkGzOTSL.jpg)
![Quicksilver 805759Q3 Distributor Cap Kit for Marinized V8 Engines by General Motors w/Thunderbolt IV and V HEI Ignition Systems - Image 3](https://m.media-amazon.com/images/I/71dQETpeSmL.jpg)
![Quicksilver 805759Q3 Distributor Cap Kit for Marinized V8 Engines by General Motors w/Thunderbolt IV and V HEI Ignition Systems - Image 4](https://m.media-amazon.com/images/I/71t9zgJaI8L.jpg)
![Quicksilver 805759Q3 Distributor Cap Kit for Marinized V8 Engines by General Motors w/Thunderbolt IV and V HEI Ignition Systems - Image 5](https://m.media-amazon.com/images/I/91WdXCik8WL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product / no issues / runs great
*by S***S on August 7, 2023*

Great OEM quality and a good price

### ⭐⭐⭐⭐⭐ GREAT
*by J***I on February 13, 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

### ⭐⭐⭐⭐⭐ OEM quality
*by D***A on July 19, 2023*

I always buy factory parts-can’t go wrong 95% of the time-big issue with this product-bone heads at mercury think it’s funny to put bubble wrap around the rotor-place inside the cap so it will stick & jack up the gasket…-25 years and still Doing it…

## Frequently Bought Together

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-04*