Description
Autolite AI5683 is an Iridium Ultra replacement spark plug with a laser-welded iridium-enhanced fine-wire center electrode and a wear-resistant platinum-tipped ground electrode. The 12 mm threaded shell and gasket-style seat must match the original engine specification.
Specifications
- Manufacturer MPN: AI5683; one spark plug
- Thread: M12 x 1.25; gasket/flat seat
- Reach: approximately 26 mm; hex: 14 mm
- Factory preset gap: approximately 1.1 mm (0.044 in)
- Iridium fine-wire center, platinum ground contact and copper heat-transfer core
- Resistor spark plug
Compatibility and installation notes
Confirm the precise year, engine, OE plug number, seat type and service gap. Other Autolite Iridium Ultra numbers may look similar but have different hexes or heat ranges. Follow the engine manufacturer's installation and torque requirements.
Manufacturer: Autolite Spark Plugs; Manufacturer part number: AI5683
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