---
product_id: 37907190
title: "Autolite 456 Copper Non-Resistor Automotive Replacement Spark Plugs (4 Pack)"
brand: "autolite iridium ultra"
price: "$43.72"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/37907190-autolite-456-copper-non-resistor-automotive-replacement-spark-plugs-4
store_origin: US
region: United States of America
---

# Boosts fuel efficiency & smooth acceleration Full copper core for max thermal conductivity Leak-proof copper-glass seal for durability Autolite 456 Copper Non-Resistor Automotive Replacement Spark Plugs (4 Pack)

**Brand:** autolite iridium ultra
**Price:** $43.72
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Autolite 456 Copper Non-Resistor Automotive Replacement Spark Plugs (4 Pack) by autolite iridium ultra
- **How much does it cost?** $43.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/37907190-autolite-456-copper-non-resistor-automotive-replacement-spark-plugs-4)

## 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

- • **Built to Last:** Heat-fused internal seal and leak-proof copper-glass bonding guarantee long-lasting durability and reliability.
- • **Fuel-Smart Ignition:** Optimized spark delivery promotes quicker starts, improved fuel economy, and smoother acceleration—drive smarter, not harder.
- • **Legacy of Innovation:** Trusted since 1936, Autolite’s copper plugs combine decades of expertise with cutting-edge design for unbeatable value and performance.
- • **Precision Engineering:** Cold-formed steel shell with precision rolled threads and multi-rib insulator reduces misfires and enhances spark consistency.
- • **Unmatched Thermal Performance:** Full copper core electrode ensures superior heat transfer for consistent ignition under all conditions.

## Overview

Autolite 456 Copper Non-Resistor Spark Plugs feature a full copper core electrode for superior thermal conductivity, a leak-proof copper-glass seal for enhanced durability, and precision engineering that improves fuel efficiency and acceleration. Designed for reliable ignition and backed by decades of innovation since 1936, these spark plugs deliver consistent performance and long-lasting value for your vehicle.

## 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 |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | UTV |
| Global Trade Identification Number | 00009100004154 |
| UPC | 009100004154 |
| Manufacturer | FRAM |
| Model | 456-4PK |
| Item Weight | 2.24 ounces |
| Product Dimensions | 1 x 4 x 3.5 inches |
| Item model number | 456-4PK |
| Exterior | Chrome |
| Manufacturer Part Number | 456-4PK |

## Product Details

- **Brand:** Autolite Iridium Ultra
- **Core Material:** Copper
- **Top Material Type:** Alloy Steel
- **Vehicle Service Type:** UTV
- **Global Trade Identification Number:** 00009100004154

## Images

![Autolite 456 Copper Non-Resistor Automotive Replacement Spark Plugs (4 Pack) - Image 1](https://m.media-amazon.com/images/I/814ApC2BXKL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Plugs
*by H***C on November 24, 2022*

Good Plugs. Do not purchase from this seller. I ordered 2 boxes. They sent 1

### ⭐⭐⭐⭐⭐ Works perfect.
*by J***F on June 30, 2019*

No need to set , comes pre-set. It worked perfectly from the first pull of my lawn mower. I have a very old craftsman and was having a very hard time finding the right plug. Amazon saved the day. Thank you !!!!!!!!!!!!

### ⭐⭐⭐⭐⭐ Correct item
*by G***S on March 24, 2018*

Proper item and received it in a timely.manner

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**Shop now:** [https://www.desertcart.us/products/37907190-autolite-456-copper-non-resistor-automotive-replacement-spark-plugs-4](https://www.desertcart.us/products/37907190-autolite-456-copper-non-resistor-automotive-replacement-spark-plugs-4)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-10*