MERCURY GRAND MARQUIS Spark Plugs

Spark Plugs, Ruthenium HX, Platinum, Resistor, 14mm Thread Size, 0.708 in. Reach, Tapered Seat, Each

Part Number: NGK-94567

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Tuesday 9/2/2025

Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-7401

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Tuesday 9/2/2025

Spark Plug, Ruthenium HX, Ruthenium, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: NGK-92714

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Spark Plug, XP, Copper Core, Tapered Seat, 14mm Thread, 0.708 in. Reach, Projected Tip, Non-resistor, Each

Part Number: ATL-XP104

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Spark Plug, Double Iridium, 14mm Thread, 17.5mm Reach, Tapered Seat, Each

Part Number: BCH-9660

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Spark Plug, OE Iridium, Resistor, Each

Part Number: BCH-9606

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tuesday 9/2/2025

Spark Plug, Double Platinum, 18mm Reach, 5/8 in. Hex, Tapered Seat, Resistor, Each

Part Number: NGK-7740

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025