Description
Spark Plug - Racing - 14 mm Thread - 0.750 in Reach - Gasket Seat - Non-Resistor - Each
Brand : AUTOLITE
ManufacturerPart : AR51
UPC : 9100017727
Length : 3.5 inches
Width : 1.05 inches
Height : 1 inches
Weight : 0.14 lbs
AirRestricted : NO
Notes : small 5/8 hex with same heat range is AR3933(washer style for alum. head, usually for alcohol engine)