Xtreme Start Spark Plugs
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Autolite Xtreme Start Spark Plugs

Part No. XST255DP Warranty Details  

Fit of this part varies by vehicle & equipment specs Type of Fit

From lawn mowers to chain saws, this plug provides quicker consistent starts versus the standard plug and an anti-foul design.

Product Features:
  • 0.6mm finewire design offers exceptional fouling resistance for reliable starting in any season or weather condition
  • Up to 26% quicker engine starts than the OE plug
  • Up to 21% less HC emissions than the OE plug
  • Meets or exceeds OE specifications
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Center Electrode Material:Iridium alloy
Thread Reach:0.375
Includes Gasket or Seal:Yes
Seat Style:Gasket
Center Electrode Core Type:Copper Core
Rib Configuration:Standard
Electrode Core:Copper core
Terminal Top Fixed or Threaded:Threaded
Hex Size:3/4"
Number of Electrodes:1
Insulator Type:Standard
Ground Electrode:Nickel alloy
Heat Range:5
Tip Configuration:Ir Finewire
Center Electrode Firing Tip:Finewire
Gasket Installed or Loose:Loose
Center Electrode Tip:Finewire
Thread Size/Diameter:14mm
Side Electrode:Yes
Shell Material:Steel Alloy
Seat Type:Gasket
Thread Diameter:14mm
Electrode Tip:Finewire
Resistor Type:No
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