âš¡ Ignite Your Drive with Autolite!
The Autolite 3924 Copper Resistor Automotive Replacement Spark Plug features a full copper core for enhanced thermal conductivity, ensuring maximum performance and durability. With a leak-proof design and innovative copper-glass seal, this spark plug guarantees quick starts and improved fuel efficiency, making it a reliable choice for any vehicle. Backed by decades of expertise, Autolite continues to lead in spark plug technology.
| Manufacturer | Autolite |
| Brand | Autolite |
| Model | 3924 |
| Product Dimensions | 8.64 x 2.79 x 2.54 cm; 41 g |
| Item model number | 3924 |
| Exterior | Machined |
| Manufacturer part number | 3924 |
| OEM Part Number | 3924 |
| Item Weight | 41 g |
A**S
Excellent plug for 427 SBF
Replaced and engine fired right up, excellent price half the cost of automotive stores. These plugs are gritty and get the job done for all small block fords.
P**E
Nice quality
Trusted brand for many years so no complaint to make here.
B**S
Great product
Perfect fit!
T**M
Spark plugs
Everything worked out perfect thank you.
G**A
Great basic plug
The Autolite coppers aren't anything fancy. Just reliable workhorses that do well on the dyno and are easy to read.
Trustpilot
5 days ago
2 months ago