AUTOLITE
More Information for AUTOLITE 2543
{Alternate Inventory Numbers: 2543BP}
Continue Shopping
 
AUTOLITE 2543  
($0.90/Each)
Price
 $0.00
Core
 + Sold in packs of 1x1
Pack
 $0.90
Total
Add to Cart
Choose
AUTOLITE 2543close
Part image
AUTOLITE 2543 Specifications
Center Electrode Core MaterialCopper
Electrical Terminal TypeStud
Center Electrode Tip MaterialCopper
Center Electrode DesignStandard / Regular
Ground Electrode Core MaterialNickel
Ground Electrode ConfigurationSingle
Ground Electrode DesignTapered
Ground Electrode Tip MaterialCopper
Insulator MaterialCeramic
Insulator TypeProjected
Reach (IN)0.708"
Gap (Factory Preset).044" (1.1mm)
Thread Size14mm X 1.25
Drive Size5/8" (16mm)
Seat StyleTapered
ResistorResistor
Resistor; Pre-Set Gap: 0.044"
Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on Autolite copper plugs for performance and value, backed by decades of experience and passion.

Features & Benefits:
  • Guaranteed to deliver quick starts, good fuel economy and smooth acceleration.
  • Copper core center electrode for higher thermal conductivity
  • Specially engineered high nickel alloy center and ground electrode for extended life
  • High alumina ceramic for high dielectric strength
  • Leak proof, heat fused internal seal for durability
  • Multi-rib insulator prevents flash-over
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.
Which AUTOLITE Spark Plug Is Right For You?

Material / Series Lifespan / Durability Performance / Ignitability Efficiency / Fuel Economy
Copper / Nickel
Copper 		★ ★
Platinum
Platinum		 ★★★ ★★ ★
Double Platinum
Double Platinum		 ★★★★ ★★ ★
Iridium XP
Iridium XP		 ★★★★★ ★★★★★ ★★
Iridium Ultra
Iridium Ultra		 ★★★★★★ ★★★★★ ★★

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