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⚡ Ignite your drive with Autolite’s copper core power!
Autolite 104-4PK Copper Resistor Spark Plugs feature a full copper core electrode for superior thermal conductivity, a leak-proof copper-glass seal for enhanced durability, and precision engineering that improves fuel efficiency and acceleration. Designed for universal fit and backed by decades of trusted innovation, these spark plugs deliver reliable, high-performance ignition for a smoother, more efficient ride.
| ASIN | B000CBO1K2 |
| Assembly Required | No |
| Automotive Fit Type | Universal Fit |
| Brand | Autolite Iridium Ultra |
| Colour | Neutral |
| Core Material | Copper |
| Country of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (87) |
| Date First Available | 18 December 2023 |
| Exterior | Chrome |
| Generic Name | Spark Plug |
| Global Trade Identification Number | 00009100520838 |
| Item Dimensions LxWxH | 25 x 25 x 86 Millimeters |
| Item Weight | 181 g |
| Item model number | 104-4PK |
| Manufacturer | FRAM |
| Manufacturer Part Number | 104-4PK |
| Model | 104-4PK |
| Net Quantity | 4.0 Count |
| Position | Center |
| Product Dimensions | 2.54 x 2.54 x 8.59 cm; 181.44 g |
| Thread Size | 14mm |
| Top Material Type | Alloy Steel |
| UPC | 009100520838 |
| Vehicle Service Type | Snowmobile, UTV, Van, Watercraft |
M**T
Don't take more then 5 minutes to install worked good and price was right noticed small performance gain as my other spark plugs were shot would recommend
D**D
they were the shortest top plug I could find to fit a gm vortec head
D**D
Gapped them and installed easily, works great. Not sure how old the original plugs were but I get about 60 extra km per tank.
D**C
Works well in a PCM GT40 351
D**D
i use those for my Ford Fusion 2007 with new coilpack and now the jerks gon and check engine gone , have more power and feels more smooth.
Trustpilot
1 month ago
2 days ago