Description
ACDelco part 41‑629
Part Number: ACDelco 41‑629
Type: Conventional (copper-core) resistor spark plug
Resistor Value: 2–20 kΩ
Center Electrode Core: Copper
Center Electrode Tip: Nickel alloy
Ground Electrode Tip: Nickel alloy (single-prong)
Thread Size / Diameter: 14 mm (0.551 in)
Thread Reach: 0.75 in (19.05 mm)
Seat Type: Gasket (crush washer)
Hex Size: ~16 mm (0.63 in)
Insulator Height: ~2.007 in (50.98 mm)
Pre‑gap: 0.035 in (0.89 mm)
Resistor Type: Yes
Ground Configuration: Standard
Weight: ~0.45 lbs per plug
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