Autolite Ar472-4Pk High Performance Racing Non-Resistor Spark Plug, 4 Pack Gauge Sets Key Features: Impenetrable barrier to

Key Features: Impenetrable barrier to arc-through and crossfire ensures reliable ignition

2004-2011 SRX

Enjoy your comfortable driving time

[Chevrolet Silverado 2500 HD: 2003

Autolite Ar472-4Pk High Performance Racing Non-Resistor Spark Plug, 4 Pack Gauge Sets Key Features: Impenetrable barrier toAutolite Racing Spark Plugs are used by many professional race car drivers. These spark plugs contain an Yttrium Enhanced Alloy, which enables up to 8 percent reduction in side wire temperature for improved durability and less pre ignition. Autolite racing plugs are available in colder heat ranges than most plug manufacturers to support modified engines and feature a cut background electrode for improved ignitibility and faster flame kernel growth.