---
product_id: 442156416
title: "Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack)"
brand: "autolite iridium ultra"
price: "₨526"
currency: SCR
in_stock: true
reviews_count: 5
category: "Autolite Iridium Ultra"
url: https://www.desertcart.sc/products/442156416-autolite-iridium-xp-automotive-replacement-spark-plug-xp3924-1-pack
store_origin: SC
region: Seychelles
---

# Virtually no gap erosion for longer life 0.6mm finewire iridium electrode V-trimmed platinum sidewire resists wear Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack)

**Brand:** autolite iridium ultra
**Price:** ₨526
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with precision and power!

## Quick Answers

- **What is this?** Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack) by autolite iridium ultra
- **How much does it cost?** ₨526 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/442156416-autolite-iridium-xp-automotive-replacement-spark-plug-xp3924-1-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

- • **Enduring Durability:** Patented V-trimmed platinum sidewire technology resists wear, ensuring your spark plug lasts longer under pressure.
- • **Lifetime Confidence:** Backed by an unmatched limited lifetime warranty, so you can upgrade with zero hesitation.
- • **Fuel Efficiency Booster:** Optimized ignition means smoother starts and improved fuel economy—save money and time on every drive.
- • **Precision Ignition Power:** Iridium-enhanced 0.6mm finewire electrode delivers sharper, faster sparks for peak engine performance.
- • **Engineered Fit for Every Ride:** OE equivalent design guarantees perfect compatibility with all makes and models, domestic or foreign.

## Overview

The Autolite XP3924 Iridium XP Spark Plug features a 0.6mm iridium-enhanced finewire center electrode and patented V-trimmed platinum sidewire for superior ignitability and durability. Designed as an OE equivalent for all vehicle types, it offers longer life with minimal gap erosion, smoother engine starts, and improved fuel efficiency. Made in the USA and backed by a limited lifetime warranty, it’s a top-tier ignition upgrade trusted by professionals and enthusiasts alike.

## Description

Autolite Iridium XP is designed and engineered in the USA, is one of the brand's most technologically advanced spark plugs ever. These spark plugs provide better durability and a more focused ignition for better overall ignitability and optimum performance. Autolite Iridium XP spark plugs function for all makes and models, both foreign and domestic, provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products. Consider upgrading to Autolite iridium XP spark plugs for increased performance. Autolite Iridium XP spark plugs are backed by an unmatched limited lifetime warranty.

Review: Great product - Excellent for. Performance of vehicle improved. Gap was preset and installed easily.
Review: Autolite Iridium XP in a John Deere LA120 riding lawnmower - I replaced the 2 champion spark plugs in our John Deere LA120 riding lawnmower with 2 Autolite Iridium XP3924 spark plugs and it has never started quicker. It has over 200 hours on it and even when new it did not start so quickly. I have mowed our lawn twice (over 4.5 acres) since installing these Autolite Iridium spark plugs and I have not had to refill the gas tank. In the past I could get 1 and 3/4 mowings on a full tank of gas. Being Iridium spark plugs, these will not need to be replaced anywhere near as often as copper or platinum spark plugs. These Autolite Iridium spark plugs would be well worth the price just for the longer replacement intervals but factoring the quicker, smoother starts and lowered fuel consumption make these an even greater value!

## Features

- Iridium-enhanced platinum alloy 0.6mm finewire center electrode for improved ignitibility performance
- Patented V-trimmed platinum sidewire technology resists wear
- OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
- Designed for better overall durability with virtually no gap erosion for longer plug life
- Attached motor seat gasket and terminal nut

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000ET3XCY |
| Best Sellers Rank | #451,264 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #2,984 in Ignitions |
| Brand | Autolite Iridium Ultra |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Car |
| Core Material | Platinum |
| Customer Reviews | 4.5 out of 5 stars 164 Reviews |
| Gap Size | 0.6 Millimeters |
| Global Trade Identification Number | 00009100044365 |
| Item Weight | 0.11 Pounds |
| Manufacturer | FRAM |
| Manufacturer Part Number | XP3924 |
| Model | XP3924 |
| OEM Equivalent Part Number | XP3924 |
| Thread Size | 12 mm |
| Top Material Type | Alloy Steel |
| UPC | 009100044365 |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** Autolite Iridium Ultra
- **Core Material:** Platinum
- **Thread Size:** 12 mm
- **Top Material Type:** Alloy Steel
- **Vehicle Service Type:** Car

## Images

![Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack) - Image 1](https://m.media-amazon.com/images/I/61dYhg-5lEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by K***E on 25 September 2025*

Excellent for. Performance of vehicle improved. Gap was preset and installed easily.

### ⭐⭐⭐⭐⭐ Autolite Iridium XP in a John Deere LA120 riding lawnmower
*by D***N on 8 June 2024*

I replaced the 2 champion spark plugs in our John Deere LA120 riding lawnmower with 2 Autolite Iridium XP3924 spark plugs and it has never started quicker. It has over 200 hours on it and even when new it did not start so quickly. I have mowed our lawn twice (over 4.5 acres) since installing these Autolite Iridium spark plugs and I have not had to refill the gas tank. In the past I could get 1 and 3/4 mowings on a full tank of gas. Being Iridium spark plugs, these will not need to be replaced anywhere near as often as copper or platinum spark plugs. These Autolite Iridium spark plugs would be well worth the price just for the longer replacement intervals but factoring the quicker, smoother starts and lowered fuel consumption make these an even greater value!

### ⭐⭐⭐⭐⭐ Perfect OEM Replacement
*by W***S on 17 June 2025*

No need for gapping these. They're already gapped form the factory. They fit right in my 2002 Chevrolet Prizm. Installation was a breeze and they seemed to be of good quality and function exactly how they're supposed to.

## Frequently Bought Together

- Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack)
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**Shop now:** [https://www.desertcart.sc/products/442156416-autolite-iridium-xp-automotive-replacement-spark-plug-xp3924-1-pack](https://www.desertcart.sc/products/442156416-autolite-iridium-xp-automotive-replacement-spark-plug-xp3924-1-pack)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-09-16*