AUTOLITE AR51
AUTOLITE part number AR51 is a spark plug in the Ignition system. This catalog matches it to 76 year-and-engine configurations from 1959 to 1975.
Verified fitment includes 1975 Ferrari 365 GT4 4.4L H12 ; 1975 Ferrari 365 GT4 4.4L V12 ; 1974 Ferrari 365 GT4 4.4L V12 ; 1974 Ferrari 365 GT4 BB 4.4L H12 ; 1974 Ferrari 365 GTB/4 4.4L V12 , plus 71 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is AUTOLITE AR51?
AUTOLITE part number AR51 is a spark plug with published application data for 76 vehicle configurations from 1959 to 1975. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does AUTOLITE AR51 fit?
This catalog matches AR51 to 76 year-and-engine configurations from 1959 to 1975. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is AUTOLITE AR51 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. AUTOLITE AR51 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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