Performance & Replacement Spark Plugs at Summit Racing

ACDelco Conventional Resistor Spark Plugs for 1970 CAPRICE, CORVETTE - 19355200

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

Part Number: ADO-MR43T

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

ACDelco RAPIDFIRE Performance Platinum Spark Plugs 19307141

Spark Plug, RAPIDFIRE Performance Platinum, Gasket Seat, 14mm Thread, 0.752 in. Reach, Resistor, Each

Part Number: ADO-4

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

ACDelco Conventional Resistor Spark Plugs 19354422

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

Part Number: ADO-R44XLS

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK Iridium IX Spark Plugs LTR6IX

Spark Plug, Iridium IX, 14mm Thread, 25mm. Reach, Resistor, Tapered Seat, Each

Part Number: NGK-94374

Not Yet Reviewed

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

ACCEL Performance Spark Plugs 0786-4

Spark Plugs, Performance Plug, Gasket Seat, 14mm Thread .750 in. Reach, Projected, Resistor, Set of 4

Part Number: ACC-0786-4

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK Iridium IX Spark Plugs BKR5EIX-11

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-5464

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Autolite Racing Spark Plugs R134

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.433 in. Reach, Each

Part Number: ATL-AR134

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Autolite XP Xtreme Performance Spark Plugs XP985

Spark Plug, Iridium XP Enhanced Alloy, Resistor, 14mm x 1.25, Tapered Seat, 0.750 in, Reach, Each

Part Number: ATL-XP985

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK Racing Spark Plugs R7438-9

Spark Plug, Racing Plugs, Non Projected, 14mm Thread, 26.5mm Reach, 5/8 in. Hex, Gasket Seat, Each

Part Number: NGK-4656

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

ACDelco Conventional Resistor Spark Plugs 19354420

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

Part Number: ADO-R44LTS

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Champion Iridium Spark Plugs QC8WEPI

Spark Plug, Iridium, Gasket Seat, 14mm Thread, .75 in. Reach, Each

Part Number: CPN-9810

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK Racing Spark Plugs R7448A-8

Spark Plug, Racing, Tapered Seat, 14mm Thread, 25mm Reach, Heat Range 8, With Resistor, Each

Part Number: NGK-93400

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Autolite Racing Spark Plugs R3910X

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.930 in. Reach, Each

Part Number: ATL-AR3910X

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK Standard Series Spark Plugs LZFR5C-11

Spark Plug, Standard Series, Gasket Seat, 14mm Thread Size, 26.5mm Reach, Resistor, Each

Part Number: NGK-92174

4.73 out of 5 stars ( 15 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Brisk Silver Racing Spark Plugs DR12S

Spark Plugs, Silver Racing, Silver, 14mm Thread Size, 19mm Reach, Gasket Seat, 12 Heat Range, Resistor, Each

Part Number: BIK-DR12S

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK Ruthenium HX Spark Plugs LTR6BHX

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

Part Number: NGK-90495

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Brisk Silver Racing Spark Plugs DR10S

Spark Plugs, Silver Racing, Silver, 14mm Thread Size, 19mm Reach, Gasket Seat, 10 Heat Range, Resistor, Each

Part Number: BIK-DR10S

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK Racing Spark Plugs R5724-9

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

Part Number: NGK-7891

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Champion Copper Plus Spark Plugs 405

Spark Plug, RN14YC, Copper Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-405

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Brisk Silver Racing Spark Plugs GR10S

Spark Plugs, Silver Racing, Silver, 14mm Thread Size, 18mm Reach, Tapered Seat, 10 Heat Range, Resistor, Each

Part Number: BIK-GR10S

Not Yet Reviewed

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Autolite Racing Spark Plugs R3911

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Each

Part Number: ATL-AR3911

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK Racing Spark Plugs R5674-6

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-4449

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Autolite Copper Core Spark Plugs 65

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Gasket Seat, 0.750 in, Reach, Each

Part Number: ATL-65

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

NGK G-Power Platinum Spark Plugs LTR5GP

Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, 1.043 in. Reach, Resistor, Each

Part Number: NGK-5019

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025

Brisk Silver Racing Spark Plugs RR12YS

Spark Plugs, Silver Racing, Silver, 14mm Thread Size, 26.5mm Reach, Tapered Seat, 12 Heat Range, Resistor, Each

Part Number: BIK-RR12YS

Not Yet Reviewed

Estimated Ship Date: Monday 7/21/2025

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Estimated Ship Date: Monday 7/21/2025