---
product_id: 12729627
title: "Autolite 46 Copper Resistor Automotive Replacement Spark Plug (1 Pack)"
brand: "autolite iridium ultra"
price: "$16"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/12729627-autolite-46-copper-resistor-automotive-replacement-spark-plug-1-pack
store_origin: NZ
region: New Zealand
---

# Built-in resistor reduces RFI & electrode erosion 100% leak-proof copper-glass seal Full copper core for max thermal conductivity Autolite 46 Copper Resistor Automotive Replacement Spark Plug (1 Pack)

**Brand:** autolite iridium ultra
**Price:** $16
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with Autolite’s copper-powered spark!

## Quick Answers

- **What is this?** Autolite 46 Copper Resistor Automotive Replacement Spark Plug (1 Pack) by autolite iridium ultra
- **How much does it cost?** $16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/12729627-autolite-46-copper-resistor-automotive-replacement-spark-plug-1-pack)

## Best For

- autolite iridium ultra enthusiasts

## Why This Product

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

## Key Features

- • **Legacy of Innovation:** Trusted Autolite technology since 1936, delivering proven value and power
- • **Leak-Proof Durability:** Heat-fused internal seal guarantees long-lasting reliability without voltage loss
- • **Fuel-Savvy Performance:** Optimized for quick starts, better fuel economy, and seamless acceleration
- • **Smooth & Efficient Ignition:** Multi-rib insulator and resistor minimize misfires and radio interference
- • **Unmatched Thermal Efficiency:** Copper core electrode ensures peak performance in all driving conditions

## Overview

The Autolite 46 Copper Resistor Spark Plug features a full copper core electrode for superior thermal conductivity, a leak-proof copper-glass seal for durability, and an integrated resistor to reduce radio frequency interference and electrode wear. Designed for universal fit and optimized for fuel efficiency, it delivers quick starts, smooth acceleration, and reliable performance backed by decades of Autolite innovation.

## Description

Autolite Copper Core Spark Plugs deliver quick starts, good fuel economy, and smooth acceleration. The copper-glass seal bonds insulator and terminal post center electrode together to ensure full required voltage at spark gap, creating a gas-tight seal that is 100 percent leak-proof. Copper Core spark plugs feature a cold-formed steel shell and precision rolled threads, and a one-piece terminal post that adds strength. The multi-rib insulator reduces the danger of "flash-over" to prevent misfires, and the resistor reduces radio frequency interference (RFI) and electrode erosion. The full copper core electrode provides better performance in all conditions. Autolite Copper Core plugs are your industry standard.

## Features

- MAXIMUM PERFORMANCE: Every Copper Spark Plug has a full copper core electrode which provides higher thermal conductivity for better performance in all conditions
- IMPROVED DURABILITY: All Autolite spark plugs are Leak proof and come with a heat fused internal seal for long lasting durability
- CONSTRUCTION: These replacement spark plugs have a copper-glass seal which bonds the insulator and the terminal post center electrode together
- FUEL EFFICIENCY: The Autolite copper automotive replacement spark plug are guaranteed to deliver quick starts, better fuel economy and smooth acceleration
- AUTOLITE ADVANTAGE: Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on our copper plugs for performance and value, backed by decades of experience and passion

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Autolite Iridium Ultra |
| Core Material | Copper |
| Thread Size | Regular Metric |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | UTV |
| Global Trade Identification Number | 00009100000460 |
| Automotive Fit Type | Universal Fit |
| UPC | 009100200136 009100000460 |
| OEM Part Number | 46 |
| Manufacturer | FRAM |
| Model | 46 |
| Item Weight | 2.39 ounces |
| Product Dimensions | 3.38 x 1 x 1 inches |
| Item model number | 46 |
| Is Discontinued By Manufacturer | Yes |
| Exterior | Chrome |
| Manufacturer Part Number | 46 |

## Product Details

- **Brand:** Autolite Iridium Ultra
- **Core Material:** Copper
- **Thread Size:** Regular Metric
- **Top Material Type:** Alloy Steel
- **Vehicle Service Type:** UTV

## Images

![Autolite 46 Copper Resistor Automotive Replacement Spark Plug (1 Pack) - Image 1](https://m.media-amazon.com/images/I/61HfGn9+YBL.jpg)
![Autolite 46 Copper Resistor Automotive Replacement Spark Plug (1 Pack) - Image 2](https://m.media-amazon.com/images/I/71ZJgztotmL.jpg)
![Autolite 46 Copper Resistor Automotive Replacement Spark Plug (1 Pack) - Image 3](https://m.media-amazon.com/images/I/71sRR+tS62L.jpg)
![Autolite 46 Copper Resistor Automotive Replacement Spark Plug (1 Pack) - Image 4](https://m.media-amazon.com/images/I/71MGX4XYJQL.jpg)
![Autolite 46 Copper Resistor Automotive Replacement Spark Plug (1 Pack) - Image 5](https://m.media-amazon.com/images/I/81C0GaELbSL.jpg)

## Available Options

This product comes in different **Number of Items** options.

## Questions & Answers

**Q: Is this a package of 4 ?**
A: Depending on the price. If the price for 1 is $6.00 and normally 4 cost $24.00 then it's probably 1. Look under specifications. You can order more packages to make up 8. A 6 cyl. would require 2 boxes. Contact the seller.

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**Shop now:** [https://www.desertcart.nz/products/12729627-autolite-46-copper-resistor-automotive-replacement-spark-plug-1-pack](https://www.desertcart.nz/products/12729627-autolite-46-copper-resistor-automotive-replacement-spark-plug-1-pack)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-12*