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⚡ Ignite your drive with Autolite’s copper core power!
The Autolite 103 Copper Resistor Spark Plug features a full copper core electrode for enhanced thermal conductivity, a leak-proof copper-glass seal for long-lasting durability, and a resistor to reduce radio frequency interference. Designed for quick starts, improved fuel efficiency, and smooth acceleration, this vehicle-specific spark plug combines precision engineering with over 80 years of trusted Autolite innovation.
| ASIN | B000C21GKO |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #332,347 in Automotive ( See Top 100 in Automotive ) #1,890 in Automotive Replacement Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Copper |
| Customer Reviews | 4.5 out of 5 stars 113 Reviews |
| Global Trade Identification Number | 00009100001030 |
| Included Components | Spark Plug |
| Manufacturer | Autolite |
| Manufacturer Part Number | 103 |
| Model Number | 103 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 103 |
| Top Material Type | Alloy Steel |
| UPC | 009100001030 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, Truck |
M**S
Cheap good sparkplugs
Really good price for a good NJ one performance sparkplug, these were for my mom's expedition, if it was going in my vehicle I would have went with platinum plugs but I drive way more miles a year than her.
D**D
More Power!!
So much better than the recommended plugs for my car!! Better performance and better gas mileage!! They may wear a bit faster but overall most babe for your buck!!
H**Y
Hard to find
Hard to find good old copper plugs anymore, but you can count on autolite
J**I
unexpensive
good brand and cheap
U**R
Doesn’t fit
Doesn’t fit. 1/2 inch shorter . Even though it says exact fit for vehicle
T**B
Great plug
I don't know if these will have problems after a few thousand miles but right now my truck is running like it should. So much better than before I put these in with new coils. So at least initially, these are great plugs!
R**.
Worked as expected
No problems as expected
B**E
Just as described
Just as described
M**N
Used in 1997 ford ranger XLT with 4.0 engine
Perfect fit and runs great
A**2
works great
super cheap spark plugs, put them in my ranger as regular maintenance can't complain at all 10$ for spark plugs for the whole truck is a great deal.
L**A
Don’t buy on a whim
Was good price decided not to go through with diy stuff, would of cost me more to return then I basically sent
Trustpilot
4 days ago
2 weeks ago