⚡ Ignite your ride with Autolite’s copper core spark plugs — where power meets precision!
Autolite 3922 Copper Resistor Spark Plugs feature a full copper core electrode for enhanced thermal conductivity, a leak-proof copper-glass seal for durability, and precision engineering that delivers quick starts, improved fuel efficiency, and smooth acceleration. Designed specifically for motorcycles, these plugs combine trusted Autolite innovation with a 2-year warranty, making them a reliable upgrade for performance-focused riders.
| ASIN | B00358E02I |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,154,048 in Automotive ( See Top 100 in Automotive ) #5,673 in Automotive Replacement Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Motorcycle |
| Core Material | Copper |
| Customer Reviews | 4.6 out of 5 stars 325 Reviews |
| Global Trade Identification Number | 00009100003935 |
| Included Components | 4 spark plugs |
| Item Type Name | Copper Resistor Spark Plug |
| Item Weight | 1.6 ounces |
| Manufacturer | Autolite |
| Manufacturer Part Number | 3922-4PK |
| Manufacturer Warranty Description | 2 Year Limited |
| Model Number | 3922-4PK |
| Number of Items | 4 |
| OEM Equivalent Part Number | 3922-4PK |
| Thread Size | 14 millimeters |
| Top Material Type | Alloy Steel |
| UPC | 009100003935 |
| Unit Count | 4 Count |
| Vehicle Service Type | Motorcycle |
D**P
They work
Worked just fine and a very good price
R**H
Smooth Like Butta
They get the job done, are a great purchase, and it was a good quality item for its purchase price.
T**S
2014 Chevy Cruze
The spark plugs worked great. The car is running smooth and it was a perfect fit.
R**R
Four Stars
E
M**N
Good quality
Good quality
K**Y
Great Buy
Great buy, fast shipping, highly recommend.
H**A
Spark plugs
Value for the money. Work well fit perfectly.
L**Y
Good plugs
this more expensive at the auto part shop
A**R
Very Good
Came gapped properly, good plugs that work well in my high compression big block Mopar. Nice cold plugs for the occasional use of nitrous as well.
W**S
2008 polaris sportsman 800 - works!
Seems to be a fine substitute for oem plugs. time will tell.
M**X
Don't buy
Dis product is not a good quality. It lasted 2 month and with it went my egnition coil. Wanted to save 150 bucks, but ended up getting new spark plugs and coil. 400 bucks out of pocket. Doesn't worth the headeck. Buy from your local store. Don't try to save money on thw plugs it can take down the entire engine.
A**N
Bad quality products!
One from for was not working properly! Now seems that a second one is doing the same thing.
A**R
Not For Chevy Trax
Caused me more problems. It might work for other cars but it doesn't work for chevy Trax. Think twice if you are buying for Trax even though amazon says it's compatible.
Trustpilot
2 days ago
2 weeks ago