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⚡ Ignite Performance, Slash Fuel Costs, and Drive Longer with Autolite Iridium XP!
The Autolite Iridium XP XP3924 spark plug is a premium automotive replacement designed for durability and efficiency. Featuring a 0.6mm finewire iridium center electrode with laser welding and a platinum-protected ground wire, it delivers superior ignitability and fuel economy. Engineered to last up to 100,000 miles, it suits a wide range of vehicles and is backed by a limited lifetime warranty, making it a trusted upgrade for professional-grade performance and reliability.
| ASIN | B000ET3XCY |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #170,686 in Automotive ( See Top 100 in Automotive ) #1,107 in Automotive Replacement Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Iridium |
| Customer Reviews | 4.4 out of 5 stars 167 Reviews |
| Gap Size | 0.6 Millimeters |
| Global Trade Identification Number | 00009100044365 |
| Included Components | Iridium Spark Plug |
| Item Type Name | Spark Plug |
| Item Weight | 0.11 Pounds |
| Manufacturer | FRAM |
| Manufacturer Part Number | XP3924 |
| Manufacturer Warranty Description | Lifetime Limited Warranty |
| Model Number | XP3924 |
| OEM Equivalent Part Number | XP3924 |
| Thread Size | 12 mm |
| Top Material Type | Nickel |
| UPC | 009100044365 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Car, Truck |
K**E
Great product
Excellent for. Performance of vehicle improved. Gap was preset and installed easily.
D**N
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!
W**S
Perfect OEM Replacement
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.
A**N
Can't go wrong
Good plugs for the price. I've heard these are "iridium enhanced" plugs and not pure iridium. Plus the platinum puck (or whatever you want to call it) on the ground electrode is either just a coating or barely there. In a nutshell, these leave a lot to be desired when you compare to OEM. But the truth is, these do fine for most vehicles as aftermarket replacements. Why? The OEM plugs ('07 Kia Sportage 2.7L) lasted 180K (most people don't change them). Drop these in at 180K and guess what-- they'll go to the graveyard with the car. I have utmost confidence these plugs will last 50-100K+ quite easily.
N**.
Good price
Good price, but I ordered 6 I got 3 first one in each package,next day I got that other 3,two in one package and 1 in another package, four of the spark plugs were outstanding of the origal package,if I knew that were sent like that I would not order it, I have tried them yet,bad shipping they supposedly came from the same place,but they arrived two different days and in 5 package it
B**B
Good quality
Good spark plugs
J**E
Unbelievable
Unbelievable how this was packaged! These are very expensive and easy to break! Very unhappy with this!
R**N
works
fits 2005 Subaru
Trustpilot
1 month ago
2 months ago