---
product_id: 14819832
title: "Autolite 405 Copper Resistor Automotive Replacement Spark Plug (1 Pack)"
brand: "autolite iridium ultra"
price: "VT3557"
currency: VUV
in_stock: false
reviews_count: 9
url: https://www.desertcart.vu/products/14819832-autolite-405-copper-resistor-automotive-replacement-spark-plug-1-pack
store_origin: VU
region: Vanuatu
---

# Boosts fuel efficiency & smooth acceleration Full copper core for max thermal conductivity Leak-proof copper-glass seal for durability Autolite 405 Copper Resistor Automotive Replacement Spark Plug (1 Pack)

**Brand:** autolite iridium ultra
**Price:** VT3557
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Ignite your drive with Autolite’s copper core spark – where power meets precision!

## Quick Answers

- **What is this?** Autolite 405 Copper Resistor Automotive Replacement Spark Plug (1 Pack) by autolite iridium ultra
- **How much does it cost?** VT3557 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/14819832-autolite-405-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

- • **Built to Last:** Heat-fused internal seal guarantees leak-proof durability under all driving conditions.
- • **Legacy of Innovation:** Trusted Autolite technology since 1936, blending experience with cutting-edge spark plug design.
- • **Precision Engineering:** Copper-glass seal bonds insulator and terminal post for consistent spark delivery.
- • **Fuel-Savvy Performance:** Optimized for quick starts, improved fuel economy, and seamless acceleration.
- • **Unmatched Thermal Power:** Full copper core electrode ensures superior heat transfer for peak engine performance.

## Overview

The Autolite 405 Copper Resistor Spark Plug features a full copper core electrode for enhanced thermal conductivity, a leak-proof copper-glass seal for durability, and a resistor to reduce interference and electrode wear. Designed for quick starts, better fuel economy, and smooth acceleration, this single-pack spark plug is a reliable choice 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.

Review: Great product! Worked like a charm - Great product! Worked like a charm.
Review: fraudulent title - NOT a 4 pack - The autolite 405 plug is fine. The product listing is very misleading. Buying 1 of these is just 1 plug, NOT A 4 PACK as the title says.

## 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 | B000C1WB9K |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,287,286 in Automotive ( See Top 100 in Automotive ) #6,416 in Automotive Replacement Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Core Material | Copper |
| Customer Reviews | 3.4 3.4 out of 5 stars (36) |
| Date First Available | October 14, 2005 |
| Exterior | Chrome |
| Global Trade Identification Number | 00009100004055 |
| Is Discontinued By Manufacturer | Yes |
| Item Weight | 1.6 ounces |
| Item model number | 405 |
| Manufacturer | FRAM |
| Manufacturer Part Number | 405 |
| Model | 405 |
| OEM Part Number | 405 |
| Position | Front |
| Product Dimensions | 1 x 1 x 3.38 inches |
| Thread Size | Regular Metric |
| Top Material Type | Alloy Steel |
| UPC | 009100004055 |
| Vehicle Service Type | Car, Truck |

## Product Details

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

## Images

![Autolite 405 Copper Resistor Automotive Replacement Spark Plug (1 Pack) - Image 1](https://m.media-amazon.com/images/I/81ROjlG55BL.jpg)
![Autolite 405 Copper Resistor Automotive Replacement Spark Plug (1 Pack) - Image 2](https://m.media-amazon.com/images/I/81eRhOmNX7L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product! Worked like a charm
*by A***F on June 21, 2016*

Great product! Worked like a charm.

### ⭐ fraudulent title - NOT a 4 pack
*by W***Y on October 20, 2022*

The autolite 405 plug is fine. The product listing is very misleading. Buying 1 of these is just 1 plug, NOT A 4 PACK as the title says.

### ⭐⭐ Product good. Delivery shorted every time.
*by J***F on September 21, 2023*

The first time I ordered 2 sets of 4 and only received 1 set of 4. I complained about the shortage of one set of 4 and received just one more piece. I sent it back because it was incomplete and then received 2 pieces. I am still short 2 spark plugs of the second set of 4.

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**Shop now:** [https://www.desertcart.vu/products/14819832-autolite-405-copper-resistor-automotive-replacement-spark-plug-1-pack](https://www.desertcart.vu/products/14819832-autolite-405-copper-resistor-automotive-replacement-spark-plug-1-pack)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-01*