Spark Plugs - Tapered Spark Plug Seat Style

NGK Iridium IX Spark Plugs for 1970-1995 MUSTANG - UR6IX

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

Part Number: NGK-7348

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Brisk Silver Racing Spark Plugs XOR12YS

Spark Plugs, Silver Racing, Silver, 12mm Thread Size, 27mm Reach, Tapered Seat, 12 Heat Range, Resistor, Each

Part Number: BIK-XOR12YS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Denso Iridium TT Spark Plugs 4715

Spark Plug, Iridium TT, ITF16TT, 14mm Thread, 11.60mm Reach, Tapered Seat, Universal, Each

Part Number: DNP-4715

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

E3 DiamondFIRE Racing Spark Plugs E3.109

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.708 in. Reach, Each

Part Number: ETP-E3-109

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

NGK Ruthenium HX Spark Plugs TR6AHX

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: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

NGK V-Power Spark Plugs YR55

Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Reach, Resistor, Each

Part Number: NGK-7240

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Champion Platinum Power Spark Plugs 3032

Spark Plug, RE10PMC5, Platinum Power, 14mm Thread, 1.00 in. Reach, Resistor, Chrysler, Dodge, 2.7L, Each

Part Number: CPN-3032

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

NGK V-Power Spark Plugs TR4

Spark Plug, V-Power, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-3754

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Brisk Silver Racing Spark Plugs GR14YS

Spark Plugs, Silver Racing, Silver, 14mm Thread Size, 18mm Reach, Tapered Seat, 14 Heat Range, Resistor, Each

Part Number: BIK-GR14YS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

ACDelco RAPIDFIRE Performance Platinum Spark Plugs 19308032

Spark Plug, AC Delco, Platinum, Tapered Seat, 14mm Thread, .625 in. Reach, Resistor, Each

Part Number: ADO-12

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

ACDelco GM Genuine Parts Iridium Spark Plugs 12681658

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 ( 2 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

NGK V-Power Spark Plugs LZTR4A-11

Spark Plug, V-Power, Tapered Seat, 14mm Thread, 25mm Reach, Projected Tip, Resistor, Each

Part Number: NGK-5306

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Autolite Single Platinum Spark Plugs P104

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

Part Number: ATL-AP104

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Denso Iridium TT Spark Plugs 4718

Spark Plugs, Iridium TT, Tapered Seat, 14mm Thread, 25mm Reach, Resistor, Each

Part Number: DNP-4718

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

ACDelco Conventional Resistor Spark Plugs 19354431

Spark Plug, Conventional Resistor, Nickel Alloy Tip, Tapered Seat, 14mm Thread, Buick, Chevy, Olds, Pontiac

Part Number: ADO-R43TS6

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

E3 Spark Plugs E3.66

Spark Plug, E3, Tapered Seat, 14mm Thread, 1.000 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-66

4.24 out of 5 stars ( 17 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

ACDelco Gold Platinum Spark Plugs 19301811

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

Part Number: ADO-41-950

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Bosch Double Iridium Spark Plugs 96307

Spark Plug, Double Iridium, Projected, 8 Heat Range, 25mm Reach, Tapered Seat, Cadillac, Chevy, GMC, Each

Part Number: BCH-96307

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Ford Performance Parts Spark Plugs for 2013-2018 FOCUS, 2015-2019 MUSTANG - M-12405-20T

Spark Plugs, Iridium Tip, Tapered Seat, M14 x 1.25 Thread, 19mm Reach, Projected Insulator, Resistor, Ford, Set of 4

Part Number: FMS-M-12405-20T

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Brisk Premium LGS Spark Plugs ROR14LGS

Spark Plugs, Premium LGS, Silver, 14mm Thread Size, 25mm Reach, Tapered Seat, 14 Heat Range, Resistor, Each

Part Number: BIK-ROR14LGS

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Champion Copper Plus Spark Plugs 121

Spark Plug, RV8C, Copper Plus, 14mm Thread, .460 in. Reach, Resistor, Chevy, Each

Part Number: CPN-121

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Champion Double Platinum Power Spark Plugs 7440

Spark Plug, RE14PLP5, Double Platinum, Tapered Seat, 14mm Thread, 1.00 in. Reach, Resistor, Chrysler, Each

Part Number: CPN-7440

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Autolite XP Xtreme Performance Spark Plugs XP605

Spark Plug, XP Xtreme Performance, Iridium, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-XP605

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

ACDelco Gold Platinum Spark Plugs 19301809

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

Part Number: ADO-41-905

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

NGK Laser Iridium Spark Plugs ILTR6S8

Spark Plug, Laser Iridium, Iridium, 14mm Thread, 0.984 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: NGK-95927

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air