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AUTOLITE 603 - Alternative spark plugs

Replacement spark plugs for AUTOLITE 603:

Brand Model
AC Delco R42CLTS6
Accel 0786
Beck Arnley 176-5240
Beck Arnley 176-5268
Bosch HR8DCX
Bosch stk 7571
Champion RS14YC6
Champion stk 13
Denso 3119
Denso 5303
Denso IK16
Denso K16R-U
Denso T16EPR-U15
Denso VK16
Denso Iridium IK16
Denso Iridium stk 5303
Denso stk 3119
Denso stk 5023
General Motors 25164641
General Motors 5613600
Mopar 82300320
NGK BKR5EY-A
NGK BPR6EFS-13
NGK BPR6EFS13
NGK TR55
NGK stk 2087
NGK stk 3951
Torch Q6RTC-13

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The Spark Plug Cross references are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.