ACDelco Spark Plugs

Spark Plug, Professional, Iridium Tip, Tapered Seat, 14mm Thread, Resistor, Each

Part Number: ADO-41-988

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/13/2025

Spark Plug, Iridium Tip, Tapered Seat, 14mm Thread, 1.000 in. Reach, Resistor, Each

Part Number: ADO-41-108

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/13/2025

Spark Plug, Conventional Resistor, Nickel Alloy Tip, Tapered Seat, 14mm Thread, Each

Part Number: ADO-41-606

Not Yet Reviewed

Estimated Ship Date: Monday 10/13/2025

Spark Plug, RAPIDFIRE Performance Platinum, Platinum Tip, Nickel Copper Alloy Core, Flat Seat, 16mm Wrench Diameter, One Ground Strap, Each

Part Number: ADO-21

Not Yet Reviewed

Estimated Ship Date: Monday 10/13/2025