Spark Plugs

Find Parts That Fit Your Vehicle

Select Thread Pitch

All

14mm

10mm

1.25mm

18mm

12mm

14 mm

16mm

96 products

Sort By:

Clear All

Products

NGK 7317 R5724-8 V-Power Racing Spark Plug, Set of 8

NGK |

#9100084

NGK 7317 R5724-8 V-Power Racing Spark Plug, Set of 8

(9)

Thread Pitch:

14mm

Wrench Size:

5/8"

Sold in Quantity:

Kit

$28.99

/kit

AC Delco |

#9100136

AC Delco R45TS Conventional Spark Plugs, Set of 8

(5)

Sold in Quantity:

Set

$24.99

/kit

NGK R5671A-9 Spark Plug for Sprint 360 Racing Engines, Set of 8

NGK |

#9100079

NGK R5671A-9 Spark Plug for Sprint 360 Racing Engines, Set of 8

Seat Taper:

Gasket

Thread Pitch:

14mm

Sold in Quantity:

Kit

$58.99

/kit

Accel |

#9100171

Accel 0576S-4 Shorty Spark Plug, 5/8 Hex, .460 Reach Tapered 8/Pk

(6)

Thread Pitch:

14mm

Wrench Size:

5/8"

Sold in Quantity:

Kit

$75.99

/kit

-5%

Accel |

#1050416S4

ACCEL 0416S-4 Spark Plug, 14mm Thread, Shorty, .750 Inch, 4 Pack

(10)

Thread Pitch:

14mm

Sold in Quantity:

Set

$49.95

/set

$53.02

NGK R5671A-8 Spark Plug for Sprint 305 Racing Engines, Set of 8

NGK |

#9100078

NGK R5671A-8 Spark Plug for Sprint 305 Racing Engines, Set of 8

(1)

Seat Taper:

Gasket

Thread Pitch:

14mm

Sold in Quantity:

Kit

$58.99

/kit

AC Delco |

#35519354415

AC Delco R45TS Conventional Spark Plug

(6)

Thread Pitch:

14mm

Sold in Quantity:

Each

$3.09

/each

-7%

Accel |

#105437S

Accel 0437S U-Groove Shorty Spark Plug, 13/16 Hex, 3/8 Reach-4/pk

(7)

Thread Pitch:

14mm

Sold in Quantity:

Set

$44.54

/set

$48.18

NGK R5671A-10 Spark Plug for Sprint 410 Racing Engines, Set of 8

NGK |

#9100080

NGK R5671A-10 Spark Plug for Sprint 410 Racing Engines, Set of 8

(2)

Seat Taper:

Gasket

Thread Pitch:

14mm

Sold in Quantity:

Kit

$52.99

/kit

-10%

Brisk |

#12190950

Brisk GOR15LGS Premium LGS Spark Plug, GM Chevy 602

(12)

Thread Pitch:

14mm

Sold in Quantity:

Each

$14.35

/each

$15.95

AC Delco |

#9100140

AC Delco R44T Conventional Spark Plugs, Set of 8

(1)

Sold in Quantity:

Set

$24.99

/kit

NGK N4177 TR6 Spark Plug 602/604 Crate Engine LS1/LS Trk Set of 8

NGK |

#9100077

NGK N4177 TR6 Spark Plug 602/604 Crate Engine LS1/LS Trk Set of 8

(3)

Thread Pitch:

14mm

Wrench Size:

5/8"

Sold in Quantity:

Kit

$32.99

/kit

NGK R5671A-11 Spark Plug for Sprint 410 Racing Engines, Set of 8

NGK |

#9100083

NGK R5671A-11 Spark Plug for Sprint 410 Racing Engines, Set of 8

(1)

Seat Taper:

Gasket

Thread Pitch:

14mm

Sold in Quantity:

Kit

$54.99

/kit

NGK R5671A-8 Spark Plug for Sprint 305 Racing Engines

NGK |

#9104554

NGK R5671A-8 Spark Plug for Sprint 305 Racing Engines

(3)

Thread Pitch:

14mm

Sold in Quantity:

Each

$7.49

/each

NGK R5671A-9 Spark Plug for Sprint 360 Racing Crate Engines

NGK |

#9105238

NGK R5671A-9 Spark Plug for Sprint 360 Racing Crate Engines

(2)

Thread Pitch:

14mm

Sold in Quantity:

Each

$7.39

/each

Autolite |

#3733934

Autolite AR3934 14mm Racing Spark Plug-5/8 Hex-Gasket-3/4 Reach-Hot

Thread Pitch:

14mm

Sold in Quantity:

Each

$5.99

/each

AC Delco |

#9100129

AC Delco 41-110 Iridium Spark Plugs, Set of 8

(1)

Sold in Quantity:

Set

$90.99

/kit

NGK R5671A-10 Spark Plug for Sprint 410 Racing Crate Motors

NGK |

#9105820

NGK R5671A-10 Spark Plug for Sprint 410 Racing Crate Motors

(2)

Thread Pitch:

14mm

Sold in Quantity:

Each

$6.69

/each

NGK 6596 R5671A-11 Spark Plug for Sprint 410 Race Engines

NGK |

#9106596

NGK 6596 R5671A-11 Spark Plug for Sprint 410 Race Engines

Thread Pitch:

14mm

Sold in Quantity:

Each

$6.99

/each

Champion |

#271RC12YC

Champion 71 RC12YC Spark Plugs, Each

(1)

Thread Pitch:

14mm

Sold in Quantity:

Each

$4.39

/each

AC Delco |

#35519354432

AC Delco R44T Conventional Spark Plug

(1)

Thread Pitch:

14mm

Sold in Quantity:

Each

$3.09

/each

-7%

Accel |

#105P526S

ACCEL P526S Double Platinum Shorty Spark Plug, 14mm Thread

(1)

Thread Pitch:

14mm

Sold in Quantity:

Each

$31.79

/each

$34.39

Brisk |

#12190951

Brisk USA DR15ZC Multi-Spark 14mm Racing Spark Plug

Thread Pitch:

14 mm

Sold in Quantity:

Each

$14.35

/each

Champion |

#9100093

Champion 844 H10C SE Spark Plugs, 1939-53 Ford Flathead, Set of 8

(2)

Thread Pitch:

14mm

Wrench Size:

13/16"

Sold in Quantity:

Kit

$32.99

/kit

AC Delco |

#9100141

AC Delco 41-162 Iridium Spark Plugs, Set of 8

Sold in Quantity:

Set

$97.99

/kit

NGK N3754 Spark Plug for GM 602 Racing Crate, Set of 8

NGK |

#9108049

NGK N3754 Spark Plug for GM 602 Racing Crate, Set of 8

Thread Pitch:

14mm

Wrench Size:

5/8"

Sold in Quantity:

Kit

$30.99

/kit

-7%

Accel |

#1050414S4

ACCEL 0414S-4 Spark Plug , 14mm Thread, Shorty, .750 Inch, Copper

(2)

Thread Pitch:

14mm

Sold in Quantity:

Set

$44.54

/set

$48.18

Champion |

#9100094

Champion 71 RC12YC Spark Plugs, Edel Flathead Ford Head Set of 8

Thread Pitch:

14mm

Wrench Size:

5/8"

Sold in Quantity:

Kit

$34.99

/kit

NGK N3754 Spark Plug for GM 602 Racing Crate Motors

NGK |

#9103754

NGK N3754 Spark Plug for GM 602 Racing Crate Motors

(3)

Thread Pitch:

14mm

Sold in Quantity:

Each

$3.89

/each

AC Delco |

#35519354425

AC Delco CR43TS Conventional Spark Plug

(1)

Thread Pitch:

14mm

Sold in Quantity:

Each

$2.99

/each

NGK |

#91007938

NGK 7938 BKR5E V-Power Spark Plug

Thread Pitch:

14mm

Sold in Quantity:

Each

$3.89

/each

-7%

Accel |

#105576S

Accel 0576S-4 Shorty Spark Plug, 5/8 Hex, .460 Reach Tapered 4/Pk

(12)

Thread Pitch:

14mm

Sold in Quantity:

Set

$42.87

/set

$46.37

AC Delco |

#9100137

AC Delco R44LTS6 Conventional Spark Plugs, Set of 8

(1)

Sold in Quantity:

Set

$19.99

/kit

-48%

Accel |

#105574S

Accel 0574S-4 Shorty Spark Plug, 5/8 Hex, .460 Reach Tapered 4/Pk

(6)

Thread Pitch:

14mm

Sold in Quantity:

Set

$27.47

/set

$53.11

NGK 7173 R5672A-8 Racing Spark Plug, 5/8 Hex, Gasket Seat

NGK |

#9107173

NGK 7173 R5672A-8 Racing Spark Plug, 5/8 Hex, Gasket Seat

(1)

Thread Pitch:

14mm

Sold in Quantity:

Each

$6.39

/each

NGK N2238 TR5 Spark Plug, 602 & 604 Crate Engine, LS1, LS Truck

NGK |

#9102238

NGK N2238 TR5 Spark Plug, 602 & 604 Crate Engine, LS1, LS Truck

(2)

Thread Pitch:

14mm

Sold in Quantity:

Each

$3.69

/each

Showing 1 - 36 of 96 results

Shop Feedback:

Did you find what you are looking for?

Try Shopping by the Make of your Vehicle:

Chevy Cadillac Pontiac GMC Ford Buick Mercury Dodge Oldsmobile Hummer Lincoln Chrysler Plymouth DeTomaso Jaguar Jeep Studebaker

The easiest way to Increase horsepower, increase fuel mileage, and lower emissions is to upgrade to high performance spark plugs from Speedway Motors. With the largest assortment of spark plugs with various tips, thread sizes, seats, reaches, and heat transfers, you will find the quality spark plug you need to achieve the performance you are looking for. Speedway Motors has spark plugs from brands like Accel, Autolite, Longacre, NGK Spark Plugs, and Champion Spark Plugs in stock and ready to ship today at the lowest prices around!

Spark Plugs

Thread Pitch

Brand

Application

Department

Sanctioning Body

Race Type

Availability

Engine Family

Discounts

Make

Platform

Price

Customer Rating

Products

NGK 7317 R5724-8 V-Power Racing Spark Plug, Set of 8

AC Delco R45TS Conventional Spark Plugs, Set of 8

NGK R5671A-9 Spark Plug for Sprint 360 Racing Engines, Set of 8

Accel 0576S-4 Shorty Spark Plug, 5/8 Hex, .460 Reach Tapered 8/Pk

ACCEL 0416S-4 Spark Plug, 14mm Thread, Shorty, .750 Inch, 4 Pack

NGK R5671A-8 Spark Plug for Sprint 305 Racing Engines, Set of 8

AC Delco R45TS Conventional Spark Plug

Accel 0437S U-Groove Shorty Spark Plug, 13/16 Hex, 3/8 Reach-4/pk

NGK R5671A-10 Spark Plug for Sprint 410 Racing Engines, Set of 8

Brisk GOR15LGS Premium LGS Spark Plug, GM Chevy 602

AC Delco R44T Conventional Spark Plugs, Set of 8

NGK N4177 TR6 Spark Plug 602/604 Crate Engine LS1/LS Trk Set of 8

NGK R5671A-11 Spark Plug for Sprint 410 Racing Engines, Set of 8

NGK R5671A-8 Spark Plug for Sprint 305 Racing Engines

NGK R5671A-9 Spark Plug for Sprint 360 Racing Crate Engines

Autolite AR3934 14mm Racing Spark Plug-5/8 Hex-Gasket-3/4 Reach-Hot

AC Delco 41-110 Iridium Spark Plugs, Set of 8

NGK R5671A-10 Spark Plug for Sprint 410 Racing Crate Motors

NGK 6596 R5671A-11 Spark Plug for Sprint 410 Race Engines

Champion 71 RC12YC Spark Plugs, Each

AC Delco R44T Conventional Spark Plug

ACCEL P526S Double Platinum Shorty Spark Plug, 14mm Thread

Brisk USA DR15ZC Multi-Spark 14mm Racing Spark Plug

Champion 844 H10C SE Spark Plugs, 1939-53 Ford Flathead, Set of 8

AC Delco 41-162 Iridium Spark Plugs, Set of 8

NGK N3754 Spark Plug for GM 602 Racing Crate, Set of 8

ACCEL 0414S-4 Spark Plug , 14mm Thread, Shorty, .750 Inch, Copper

Champion 71 RC12YC Spark Plugs, Edel Flathead Ford Head Set of 8

NGK N3754 Spark Plug for GM 602 Racing Crate Motors

AC Delco CR43TS Conventional Spark Plug

NGK 7938 BKR5E V-Power Spark Plug

Accel 0576S-4 Shorty Spark Plug, 5/8 Hex, .460 Reach Tapered 4/Pk

AC Delco R44LTS6 Conventional Spark Plugs, Set of 8

Accel 0574S-4 Shorty Spark Plug, 5/8 Hex, .460 Reach Tapered 4/Pk

NGK 7173 R5672A-8 Racing Spark Plug, 5/8 Hex, Gasket Seat

NGK N2238 TR5 Spark Plug, 602 & 604 Crate Engine, LS1, LS Truck

Popular Parts

Try Shopping by the Make of your Vehicle: