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1966 Ford Mustang - Spark Plugs

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  • Thread Reach (mm) - 26mm

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Autolite Iridium Ultra Spark Plug - AI5683
Part #:
AI5683
Line:
ATO
Limited Lifetime Warranty
Metallurgy:   Iridium/Platinum
Center Electrode Tip Material:   Iridium
Ground Electrode Tip Material:   Platinum

Autolite Iridium XP Spark Plug - XP5683
Part #:
XP5683
Line:
ATO
Limited Lifetime Warranty
Metallurgy:   Iridium/Platinum
Center Electrode Tip Material:   Iridium
Ground Electrode Tip Material:   Platinum

Denso Iridium Long Life Plug Number FXE20HR11 Spark Plug - 3439
Part #:
3439
Line:
DEN
1 Year Limited Warranty
Metallurgy:   Iridium
Service Number:   FXE20HR11
Center Electrode Tip Material:   Iridium

Autolite Double Platinum Spark Plug - APP5683
Part #:
APP5683
Line:
ATO
5 Year Limited Warranty
Metallurgy:   Double Platinum
Center Electrode Tip Material:   Platinum
Ground Electrode Tip Material:   Platinum