End Game 4 Gauge Marine Grade Battery Cables, USCG and ABYC Approved, 1-15ft Lengths, Heavy Duty Tinned Lugs, Fully Assembled and Made in The USA (Single Black, 1ft - 5/16” Lugs)

Make sure the conductivity is still good. Sometimes, they get brittle and aren't conducting as well. I have an old BMW with several ground straps. I replaced them all with heavy guage marine grade cables. https://a.co/d/00OLUTXr