AUTOLITE
More Information for AUTOLITE AR2594
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AUTOLITE AR2594  
$1.57
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AUTOLITE AR2594 Specifications
Center Electrode Core MaterialCopper
Center Electrode DesignStandard
Center Electrode Tip MaterialNickel
Electrical Terminal TypeStud
Gap Size0.025"
Gap Size0.6mm
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignTapered
Ground Electrode Tip MaterialNickel
Hex Size21MM
Hex Size13/16"
Insulator MaterialCeramic
Reach0.75"
Reach19.5mm
Resistance1 82
Resistor TypeNo
Seat TypeFlat
Thread Diameter14mm
Tip ConfigurationShort Projection
High Performance; Racing; Non-Resistor; Pre-Set Gap: 0.025"
Autolite racing spark plugs are used by many professional car drivers. They provide cut back ground electrode, anti-corrosive nickel plating and large ground electrodes for better heat transfer.

Features & Benefits:
  • Yttrium-Enhanced Alloy enables up to 8% reduction in sidewire temperature for colder heat ranges designed to enable performance modifications and handle intense conditions.
  • Cut back ground electrode for better ignitability of the flame kernel
  • Anti-corrosive nickel plating to prevent rusting better than black oxide
This spark plug is pre-gapped, but may require minor adjustments with a Spark Plug Gap Tool / Feeler Gauge to match your engine's specifications. For proper engine performance, gaps should be within ±0.004" of OE-Recommended value.

Closeout Inventory Warranty Information:
Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).

AUTOLITE Regular Inventory Warranty Information:
2 years for Copper Spark Plugs; 4 years for Platinum Spark Plugs; 5 years for Double Platinum Spark Plugs; Limited Lifetime years for Iridium XP Spark Plugs; 5 years for Professional Series Wire Sets; 1 year for Glow Plugs
Warranty Details