---
product_id: 13411537
title: "Autolite 3924 Copper Resistor Automotive Replacement Spark Plugs (4 Pack)"
brand: "autolite iridium ultra"
price: "1957 som"
currency: KGS
in_stock: true
reviews_count: 8
url: https://www.desertcart.kg/products/13411537-autolite-3924-copper-resistor-automotive-replacement-spark-plugs-4-pack
store_origin: KG
region: Kyrgyzstan
---

# Boosts fuel efficiency & smooth acceleration Full copper core for max thermal conductivity Leak-proof copper-glass seal for durability Autolite 3924 Copper Resistor Automotive Replacement Spark Plugs (4 Pack)

**Brand:** autolite iridium ultra
**Price:** 1957 som
**Availability:** ✅ In Stock

## Summary

> ⚡ Spark your ride with Autolite – where performance meets legacy!

## Quick Answers

- **What is this?** Autolite 3924 Copper Resistor Automotive Replacement Spark Plugs (4 Pack) by autolite iridium ultra
- **How much does it cost?** 1957 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/13411537-autolite-3924-copper-resistor-automotive-replacement-spark-plugs-4-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 and copper-glass bonding guarantee leak-proof durability that keeps your engine firing flawlessly.
- • **Trusted Legacy:** Backed by Autolite’s 80+ years of innovation, these spark plugs deliver reliable performance and value you can count on.
- • **Fuel Your Drive:** Optimized for quick starts and improved fuel economy, giving you smoother acceleration and fewer stops at the pump.
- • **Ignite with Precision:** Full copper core electrode ensures superior heat transfer and consistent spark performance in all driving conditions.
- • **Engineered for Silence:** Integrated resistor reduces radio frequency interference (RFI) and electrode erosion, ensuring a quieter, cleaner spark.

## Overview

Autolite 3924 Copper Resistor Spark Plugs feature a full copper core electrode for enhanced thermal conductivity, a leak-proof copper-glass seal for durability, and a built-in resistor to reduce interference. Designed for universal automotive fit, these plugs deliver quick starts, improved fuel efficiency, and smooth acceleration, backed by decades of trusted Autolite innovation.

## Description

Autolite 3924 Copper Resistor Automotive Replacement Spark Plugs (4 Pack)

## 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 | 14mm |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00009100200730 |
| Automotive Fit Type | Universal Fit |
| UPC | 009100200730 |
| OEM Part Number | 3924 |
| Manufacturer | Autolite |
| Model | 3924-4PK |
| Item Weight | 1.6 ounces |
| Product Dimensions | 1 x 4 x 3.5 inches |
| Item model number | 3924-4PK |
| Is Discontinued By Manufacturer | No |
| Exterior | Brushed |
| Manufacturer Part Number | 3924-4PK |

## Product Details

- **Brand:** Autolite Iridium Ultra
- **Core Material:** Copper
- **Thread Size:** 14mm
- **Top Material Type:** Alloy Steel
- **Vehicle Service Type:** Car

## Images

![Autolite 3924 Copper Resistor Automotive Replacement Spark Plugs (4 Pack) - Image 1](https://m.media-amazon.com/images/I/71-GAahSRNL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent value for the money.
*by G***C on May 8, 2025*

Works great on my 2006 Scion XB. No problems.

### ⭐⭐⭐⭐⭐ Reliable plugs, good price
*by J***. on July 14, 2025*

Good replacement plug for Briggs and Stratton 2-cylinder gas mower engines.

### ⭐⭐⭐⭐⭐ Good
*by A***R on January 16, 2025*

My lawn mower was getting hard to start. I thought it might be the fuel or carb. But turned out the spark plug was bad. Put the new plug in and my mower now starts on the first or second pull and runs like new. Easy and inexpensive fix. I would buy again when needed.

## Frequently Bought Together

- Autolite 3924 Copper Resistor Automotive Replacement Spark Plugs (4 Pack)
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**Shop now:** [https://www.desertcart.kg/products/13411537-autolite-3924-copper-resistor-automotive-replacement-spark-plugs-4-pack](https://www.desertcart.kg/products/13411537-autolite-3924-copper-resistor-automotive-replacement-spark-plugs-4-pack)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-14*