---
product_id: 80034395
title: "Autolite 103 Copper Resistor Automotive Replacement Spark Plug (1 Pack)"
brand: "autolite iridium ultra"
price: "₪31"
currency: ILS
in_stock: true
reviews_count: 11
category: "Autolite Iridium Ultra"
url: https://www.desertcart.co.il/products/80034395-autolite-103-copper-resistor-automotive-replacement-spark-plug-1-pack
store_origin: IL
region: Israel
---

# Boosts fuel efficiency & smooth acceleration Full copper core for max thermal conductivity Leak-proof copper-glass seal for durability Autolite 103 Copper Resistor Automotive Replacement Spark Plug (1 Pack)

**Brand:** autolite iridium ultra
**Price:** ₪31
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with Autolite’s copper core power!

## Quick Answers

- **What is this?** Autolite 103 Copper Resistor Automotive Replacement Spark Plug (1 Pack) by autolite iridium ultra
- **How much does it cost?** ₪31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/80034395-autolite-103-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

- • **Trusted Legacy:** Backed by Autolite’s 80+ years of innovation, combining reliability with cutting-edge spark plug technology.
- • **Fuel-Savvy Ignition:** Engineered to deliver quick starts and improved fuel economy, saving you money mile after mile.
- • **Unmatched Durability:** Heat-fused internal seal and copper-glass bonding create a 100% leak-proof spark plug built to last.
- • **Precision Engineering:** Cold-formed steel shell with precision rolled threads and multi-rib insulator reduces misfires and interference.
- • **Peak Thermal Performance:** Full copper core electrode ensures superior heat dissipation for consistent power under all driving conditions.

## Overview

The Autolite 103 Copper Resistor Spark Plug features a full copper core electrode for enhanced thermal conductivity, a leak-proof copper-glass seal for long-lasting durability, and a resistor to reduce radio frequency interference. Designed for quick starts, improved fuel efficiency, and smooth acceleration, this vehicle-specific spark plug combines precision engineering with over 80 years of trusted 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.

Review: Cheap good sparkplugs - Really good price for a good NJ one performance sparkplug, these were for my mom's expedition, if it was going in my vehicle I would have went with platinum plugs but I drive way more miles a year than her.
Review: More Power!! - So much better than the recommended plugs for my car!! Better performance and better gas mileage!! They may wear a bit faster but overall most babe for your buck!!

## 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 |
|---------------|-------|
| ASIN | B000C21GKO |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #332,347 in Automotive ( See Top 100 in Automotive ) #1,890 in Automotive Replacement Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Copper |
| Customer Reviews | 4.5 out of 5 stars 113 Reviews |
| Global Trade Identification Number | 00009100001030 |
| Included Components | Spark Plug |
| Manufacturer | Autolite |
| Manufacturer Part Number | 103 |
| Model Number | 103 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 103 |
| Top Material Type | Alloy Steel |
| UPC | 009100001030 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, Truck |

## Product Details

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

## Images

![Autolite 103 Copper Resistor Automotive Replacement Spark Plug (1 Pack) - Image 1](https://m.media-amazon.com/images/I/51PviK6jtbL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Cheap good sparkplugs
*by M***S on January 21, 2016*

Really good price for a good NJ one performance sparkplug, these were for my mom's expedition, if it was going in my vehicle I would have went with platinum plugs but I drive way more miles a year than her.

### ⭐⭐⭐⭐⭐ More Power!!
*by D***D on January 6, 2020*

So much better than the recommended plugs for my car!! Better performance and better gas mileage!! They may wear a bit faster but overall most babe for your buck!!

### ⭐⭐⭐⭐ Hard to find
*by H***Y on August 31, 2025*

Hard to find good old copper plugs anymore, but you can count on autolite

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**Shop now:** [https://www.desertcart.co.il/products/80034395-autolite-103-copper-resistor-automotive-replacement-spark-plug-1-pack](https://www.desertcart.co.il/products/80034395-autolite-103-copper-resistor-automotive-replacement-spark-plug-1-pack)

---

*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-08-11*