iridium part number?

[Mephisto]

ok ive seen 7348 on here, but on sparkplugs.com it says 7177 whats the real number?

TIA

 

[sytyguy]

For which plug?

Stock/L35
----------------
UR6 = 7773
UR6IX = 7348
UR5 = 2771
UR5IX = 7177

Vortec
----------------
TR6 = 4177
TR55 = 3951
TR55IX = 7164
TR5 = 2238
TR5IX = 7397

Brodix
-----------------
R5671A8 = 4554
R5671A9 = 5238
R5671A10 = 5820
R5671A11 = 6596

HTHs

Hood

 

[Mephisto]

im looking to get the iridium ur6 plugs

whats the difference between ur5 and ur6? colder plug?

im running a stock setup and keep hearing good things about these so i thought id give em a try. i just want to make sure i get the right ones.

thanks Mike for all the part numbers!

 

[DynaGlide]

UR6 are a colder plug than the UR5.