Photo 1 of SPARKWHIZ Set of 8 Square UF413 Ignition Coils Pack & Platinum Spark Plugs & Wires Set, Replacement for UF413 D510C 5C1554,Compatible with Chevy Silverado 1500 GMC Pontiac G8 Grand Prix H3 Tahoe Yukon

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Photo 1 of SPARKWHIZ Set of 8 Square UF413 Ignition Coils Pack & Platinum Spark Plugs & Wires Set, Replacement for UF413 D510C 5C1554,Compatible with Chevy Silverado 1500 GMC Pontiac G8 Grand Prix H3 Tahoe YukonPhoto 2 of SPARKWHIZ Set of 8 Square UF413 Ignition Coils Pack & Platinum Spark Plugs & Wires Set, Replacement for UF413 D510C 5C1554,Compatible with Chevy Silverado 1500 GMC Pontiac G8 Grand Prix H3 Tahoe Yukon