PONTIAC 6.6L/400 Autolite Spark Plugs

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.372 in, Reach, Each

Part Number: ATL-86

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

Spark Plug, Single Platinum, Platinum, 14mm Thread, 0.374 in. Reach, Gasket Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-AP85

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Spark Plug, Single Platinum, Platinum, 14mm Thread, 0.375 in. Reach, Gasket Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-AP86

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Spark Plug, XS Xtreme Sport, Iridium, 14mm Thread, 0.372 in. Reach, Flat Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-XS85

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.431 in, Reach, Each

Part Number: ATL-666

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Spark Plug, XP Xtreme Performance, Copper Core, Tapered Seat, 14mm Thread, 0.433 in. Reach, Resistor, Each

Part Number: ATL-XP26

Not Yet Reviewed

Estimated Ship Date: Aug 21, 2025 if ordered today

• Special Order

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.431 in, Reach, Each

Part Number: ATL-26

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Gasket Seat, 0.375 in, Reach, Each

Part Number: ATL-85

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

Spark Plug, Iridium XP, Iridium, 14mm Thread, 0.433 in. Reach, Tapered Seat, 16mm Wrench Size, Each

Part Number: ATL-XP666

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

• Special Order

Spark Plug, Single Platinum, Platinum, 14mm Thread, 0.433 in. Reach, Tapered Seat, 16mm Wrench Size, Each

Part Number: ATL-AP666

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

• Special Order