Autolite Copper Core Spark Plugs deliver quick starts, good fuel economy, and smooth acceleration. The copper-glass seal bonds insulator and terminal post center electrode together to ensure full required voltage at spark gap, creating a gas-tight seal that is 100 percent leak-proof. Copper Core spark plugs feature a cold-formed steel shell and precision rolled threads, and a one-piece terminal post that adds strength. The multi-rib insulator reduces the danger of "flash-over" to prevent misfires, and the resistor reduces radio frequency interference (RFI) and electrode erosion. The full copper core electrode provides better performance in all conditions. Autolite Copper Core plugs are your industry standard.
| Brand | Autolite |
| Item Weight | 6.7 ounces |
| Package Dimensions | 4.25 x 3.5 x 1.1 inches |
| Item model number | 3923 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 3923 |
R**Y
The price
They are working great
V**A
nice
good
D**N
They're spark plugs. They spark.
Best plug for the BMW R1100RS. I had to open the gap to spec.
A**A
Works very well, product 💯 recommended
I'm using this for my toyota cambry 03 the product works fine.
D**N
They fit like OEM
Bought for 4 cylinder 1997 Camry. They fit perfectly and work great.
I**Z
Absolutely no complaint and super fast delivery.
Good purchase
T**A
These work very well
I bought them as a replacement for my BMW R1100 R and they worked fantastic.
A**T
Great value
N/a
Trustpilot
3 days ago
3 weeks ago
