Compatible: (4.6L/5.4L)
2004 - 2008 Ford F-150
2004 - 2008 Ford Mustang
ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are capable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
Features:
- One Piece Design - Won't break off in head during removal like two piece designs
- The Copper core is a better conductor than Iridium or Platinum plugs
- Copper dissipates heat much better than other materials
- "C" - Cut Design un-shrouds the spark kernel for a better burn
- Unlike Iridium or Platinum plugs, the ACCEL HP plugs are capable
- Machine rolled threads for precise thread engagement
- One step colder than stock
| Brand | ACCEL |
|---|---|
| Emission Code | 2 |
| GAP | n/a |
| Heat Range | 1 Step Colder |
| Hex Size | 9/16" |
| Length | Standard |
| Product Type | Spark Plug |
| Projected Tip | No |
| Qty | 1 |
| Reach | .8125" |
| Resistor | Yes |
| Seat Type | Tapered |
| Style | Copper Core |
| Thread Pitch | 1.25mm |
| Thread Size | 16mm |
| Torque Specification | 20-25 lb.ft |
Warranty:
