1984-1991 C4 Corvette Spark Plug Wire Retainers - 4-Wire 12043550 - OEM Number(s) (12043550)
Don’t let disorganized spark plug wires cramp your Corvette’s style—or its performance. The 1984–1991 C4 Corvette Spark Plug Wire Retainers (GM Part #12043550) are the unsung heroes under your hood, ensuring that your ignition wires stay securely routed, protected from heat, abrasion, and engine vibration. When things under the hood get messy, misfires and damage aren’t far behind. These 4-wire retainers help maintain order in your engine bay and ensure everything runs smoothly, just like your C4 was meant to.
Designed to OEM specifications for a perfect fit, these retainers clip into place easily and hold up to four spark plug wires with consistent separation. Whether you're doing a tune-up or restoring your C4 to factory spec, these are a must-have detail that shows you know your stuff.
Why it matters? Properly secured spark plug wires help prevent crossfiring, arcing, and wear from engine movement. Plus, they keep your engine bay looking clean and well-maintained—because details count.
Product Specs:
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Fits: 1984–1991 Corvette C4
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Holds: Up to 4 spark plug wires per retainer
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Material: Heat-resistant composite plastic
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GM Original Part Number: 12043550
A small part that makes a big difference. Keep your spark strong and your engine bay tidy with these factory-correct wire retainers made just for your C4.
Also known under these part numbers: (For reference only)