NGK TR6GP Platinum 5141 Spark Plugs - Set of 8

Fits 1997-2013 LS-Based V8 Engines 4.8L 5.3L 5.7L 6.0L 6.2L

These NGK TR6GP G-Power Platinum spark plugs are one heat range colder than the stock plugs for most LS car & truck engines. They feature a single platinum tip, 98% pure copper core and a .6mm fine-wire center electrode for more focused spark and better ignitability. This TR6GP plug is recommended for mild boost or high compression naturally aspirated setups

  • Factory Pre-gapped to .040"
  • Cold-rolled threads prevent cross-threading and damage to cylinder heads
  • Trivalent plating eliminates need for anti-seize on threads
  • High-grade alumina silicate ceramic creates a stronger insulator to reduce dielectric punch-through
  • 98% pure copper core increases heat dissipation for reliable starts and prevents spark plug overheating
  • Trapezoidal ground electrode reduces quenching
  • NGK spark plugs are tested to the highest OEM original equipment standards
  • 14mm Thread, .708" reach, 5/8" Hex
  • Stock heat range plug for LS7, LS9, LSA engines. One step colder than stock heat range for all other LS engines. 


LS1 LS2 LS3 LS6 LM7 LS7 LS9 L33 LFA LSA LH6 LQ4 LQ9 L76 L92 L99 L96 LC9 LY6 LMG LH8 LR4 LM4 L59 L77