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Upgrade your 1990 Cadillac Eldorado’s ignition system with the ACDelco Standard Spark Plugs. Designed for the 4.5L engine, these spark plugs provide reliable ignition, optimal fuel combustion, and long-lasting durability. Built to meet OEM specifications, they ensure smooth engine performance, better fuel efficiency, and reliable starts, making them ideal for your classic luxury vehicle.
🔧 Durable Construction – Designed for long-lasting reliability and high performance
🔧 Improved Ignition – Optimizes fuel combustion for better engine performance
🔧 Direct OEM Fit – Simple installation with no modifications required
🔧 Reliable Performance – Reduces misfires and ensures smooth engine operation
🔧 Classic Fit – Specifically designed for the 1990 Cadillac Eldorado 4.5L
✅ Designed for 1990 Cadillac Eldorado 4.5L engines
✅ OEM replacement part for precise fitment and performance
✅ Check owner’s manual for proper fitment
Thread Size: 14 mm
Reach: 26.5 mm (1.04 inches)
Hex Size: 5/8 inch (16 mm)
Seat Type: Gasket
Resistor: Yes
Center Electrode Tip Material: Copper
Ground Electrode Tip Material: Nickel Alloy
Pre-Gap Size: 0.035 inches
Center Electrode Core Material: Copper
Manufacturer Heat Range: 5
Upgrade your 1990 Cadillac Eldorado’s ignition system with ACDelco Standard Spark Plugs for optimal performance and reliability! 🔧🚗