The Chevrolet Performance 19542401 is a service-replacement spark plug for GM Small-Block V-8 engines. It supersedes Chevrolet Performance Part Number 19208523 and replaces a long list of legacy GM spark plug part numbers used across older Small-Block applications. Sold individually; check your engine specifications for the correct quantity required per vehicle.

Chevrolet Performance 19542401 Features:

• OE service-replacement spark plug for GM Small-Block V-8 engines
• Direct replacement for Chevrolet Performance Part Number 19208523
• Supersedes legacy GM spark plug numbers including 5613875, 5613357, 5614085, 5613867, 5613354, 19157984, 19157988, 19157990, 19300383, 19302739, and 19310655
• Application examples include 1985-1986 Chevrolet K10 Regular Cab with 5.0L and 5.7L V-8
• Sold individually; eight typically required for a V-8 application