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Autolite Xtreme Start Iridium Lawn

Autolite Xtreme Start Iridium Lawn

Part #: AUT XST258DP
Line: Autolite
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Features & Benefits

Warranty: Standard : 3 Years

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AutoliteĀ® Xtreme StartTM spark plugs are designed with an iridium-enhanced fine-wire center electrode that provides 26% quicker*, more consistent starts compared to standard copper plugs; making it the obvious go-to choice for your outdoor equipment.


  • Engineered with an iridium-enhanced center electrode that delivers 26% faster starts*, better fuel efficiency, and optimal engine performance.
  • The Yttrium-enhanced ground electrode provides superior heat transfer providing more durability under high temps and pressure for greater life.
  • Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.

Specifications

Ground Electrode Quantity 1
Insulator Type Projected
Manufacturer Part Number XST258DP
Terminal Type Non-removable Nut
Spark Plug Reach 3/8 in.
Sub Brand Xtreme Start
VMRS Code 033003005
Spark Plug Seat Type Gasket
Spark plug Inductive No
Thread Size 14 mm
Spark Plug Heat Range Autolite 2
Brand Autolite
Spark Plug Thread Size 14 mm
Gap Size 0.025 in
Seat Type Flat
Electrode Core Material Iridium
Insulator Material Ceramic
Spark Plug Resistor No
Resistor Type No
Spark Plug Hex Size 3/4"
SDS Required No
Grade Type Performance
Hex Size 3/4 in

Safety Information

Vehicle Fitment Guide

Product Reviews