I purchased 8 spark plugs 18 r15yc4 for my 1977 gmc 4x4 350cc what I had in were acdelco r44t is this the correct cross referance.
Address: 1820 NE Andresen Rd, Vancouver, WA 98661, USA
Miguel Munoz | Aug 17, 2018
That's right replace them with the same kind of took out
Michael Hobbs | Aug 17, 2018
Im not sure but i think not u should replace them with the same as u pulled out
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