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⚡ Ignite Efficiency, Drive Longer — Don’t Get Left Behind!
The Autolite Iridium XP XP3923 spark plug combines cutting-edge 0.6mm finewire iridium technology with platinum ground protection to deliver up to 100,000 miles of reliable, fuel-efficient performance. Designed for optimal ignition and backed by decades of trusted engineering, it’s the smart upgrade for professionals demanding durability and precision.
| Brand | Autolite |
| Core Material | Iridium |
| Gap Size | 0.5 Millimeters |
| Thread Size | 12 mm |
| Top Material Type | Nickel |
| Vehicle Service Type | UTV |
| Global Trade Identification Number | 00009100044341 |
| UPC | 009100044341 |
| OEM Part Number | XP3923 |
| Manufacturer | FRAM |
| Model | XP3923 |
| Item Weight | 1.76 ounces |
| Product Dimensions | 1 x 1 x 3.38 inches |
| Country of Origin | Mexico |
| Item model number | XP3923 |
| Is Discontinued By Manufacturer | No |
| Exterior | Chrome |
| Manufacturer Part Number | XP3923 |
| Special Features | Finewire design, Limited Lifetime Warranty |
J**S
Best spark plugs for my Volvo!
Iridium and platinum, excellent performance and durability, as good or better than equivalents of other brands. Great value, plus fast delivery by Amazon.
B**K
Better than Bosch
I never really cared for Autolite plugs until now. I was using OEM Bosch plugs in my BMW R1100RS motorcycle and was experiencing idle and acceleration issues. The plugs tested good, but a recent article I read recommended these plugs. Problem immediately was resolved when I swapped over.
P**.
Short Term Looks Good
Cannot comment on their longevity, as I just bought them for my Honda NC-700X motorcycle. The OEM (I think) was NGK something or other, which cost $18 to $30 EACH!! These are also iridium and cost about $5 each. Bike started right up and runs great.
D**R
Love Autolite
Great plugs ...
D**N
Good replacement
Good plugs, no problem at all
R**7
Not for VW Jetta 1.4T engine.
Wrong size for Jetta 1.4T engine. Amazon Fitment Checker said it was correct, but the thread is different. Ending up buying from local parts store. If this is correct for your vehicle, check the gap - they were gapped differently
S**R
If you have never seen the Rambler with 1,000,754 miles on a set of Autolite plugs
OK guys no yelling - I bought these 2 1/2 years ago as "have on hand replacements". They are still in my "Spares" box in the car -- fuel tilter, air filter, trans filter, frt brake pads +++. I bought them to replace the set I installed like 14 years ago in my 2002 Subaru Forester. Still running the same plugs all these years-- 185k on it. Don't do as much driving since I retired - couple thousand miles a year now. I feel guilty every now and then when I think how long they have been in that engine. Autolites don't surprise me though - the set in my 69 stang (bought June 1969) I put in in 1971 and they still get the job done when I occasionally fire it up.
R**S
Just buy them
If you're still buying iridium spark plugs at the auto parts store I don't know why? So much cheaper and just as good stop going to the auto parts store
Trustpilot
4 days ago
2 weeks ago