Description

Spark plug heat management is critical for engine reliability and consistent ignition performance, especially in high-heat or forced induction applications. The GM 18 Degree Koolsox protects your spark plugs from radiant engine heat, reducing thermal stress and extending plug life. This curved fiberglass heat sock is a straightforward bolt-on upgrade that prevents fouling and misfires caused by excessive heat exposure.

Material: Fiberglass cloth
Fitment: GM 18-degree plugs
Length: 5-1/2 inches
Shape: Curved design
Color: Black
Quantity: Single sock
Installation: Bolt-on
MPN: #07518