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With over 10 billion spark plugs produced, you can count on Autolite to provide your vehicle with the right spark everytime. Founded in 1935, Autolite has over 75 years of experience producing the industry leader in spark plug technology. When it comes to your car, you can trust Autolite.

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Autolite 216 Flathead Spark Plugs

Autolite 216 Flathead Spark Plugs

$4.99

Gasket Spark Plug Seat Style, Gasket Seat Taper

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.437"

Thread Pitch: 14mm

Quick View

Autolite AR133 14mm Racing Spark Plug-5/8 Hex, Tapered, .46 Reach, Med

Autolite AR133 14mm Racing Spark Plug-5/8 Hex, Tapered, .46 Reach, Med

$4.99

Universal Fit, Tapered Spark Plug Seat Style

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.46"

Thread Pitch: 14mm

Insulator Type: Non-projected

Quick View

Autolite AR3910X 14mm Racing Spark Plug, 5/8 Inch hex, 3/4 Reach

Autolite AR3910X 14mm Racing Spark Plug, 5/8 Inch hex, 3/4 Reach

$5.99

$6.99

Universal Fit, Gasket Spark Plug Seat Style

On Sale

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

Autolite AR94 Spark Plug-5/8 Hex, .708 Reach, Tapered, Power Tip, Hot

Autolite AR94 Spark Plug-5/8 Hex, .708 Reach, Tapered, Power Tip, Hot

$4.99

Universal Fit, Tapered Spark Plug Seat Style

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.708"

Thread Pitch: 14mm

Insulator Type: Projected

Quick View

Autolite AR3933 14mm Racing Spark Plug 5/8 Hex Gasket 3/4 Reach, Hot

Autolite AR3933 14mm Racing Spark Plug 5/8 Hex Gasket 3/4 Reach, Hot

$4.99

Universal Fit, Gasket Spark Plug Seat Style

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

Autolite AR2594 14mm Racing Spark Plug-13/16 Hex-3/4 Reach-Gasket Seat

Autolite AR2594 14mm Racing Spark Plug-13/16 Hex-3/4 Reach-Gasket Seat

$4.99

Universal Fit, Gasket Spark Plug Seat Style

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

Autolite A3924 Spark Plugs for Edelbrock Flathead Ford Heads

Autolite A3924 Spark Plugs for Edelbrock Flathead Ford Heads

$4.99

Tapered Spark Plug Seat Style, 0.75" Spark Plug Reach

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Thread Length: 0.6"

Quick View

Autolite AR134 14mm Spark Plug-5/8 Hex Taper Seat .46-Slightly Hotter

Autolite AR134 14mm Spark Plug-5/8 Hex Taper Seat .46-Slightly Hotter

$4.99

Universal Fit, Tapered Spark Plug Seat Style

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.46"

Thread Pitch: 14mm

Insulator Type: Non-projected

Quick View

Autolite AR3932 14mm Racing Spark Plug-5/8 Hex-Gasket Seat 3/4 Reach

Autolite AR3932 14mm Racing Spark Plug-5/8 Hex-Gasket Seat 3/4 Reach

$4.99

Universal Fit, Gasket Spark Plug Seat Style

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

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

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

$4.99

Universal Fit, Gasket Spark Plug Seat Style

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

Autolite AR135 14mm Spark Plug, 5/8 Hex, Tapered, .460 Inch Reach, Hot

Autolite AR135 14mm Spark Plug, 5/8 Hex, Tapered, .460 Inch Reach, Hot

$4.99

Universal Fit, Tapered Spark Plug Seat Style

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.46"

Thread Pitch: 14mm

Insulator Type: Non-projected

Quick View

Autolite AR132 14mm Spark Plug-5/8 Hex Taper Seat .46-Slightly Colder

Autolite AR132 14mm Spark Plug-5/8 Hex Taper Seat .46-Slightly Colder

$4.99

Universal Fit, Tapered Spark Plug Seat Style

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.46"

Thread Pitch: 14mm

Insulator Type: Non-projected

Quick View

Autolite AR51 Power Tip Spark Plug 13/16 Hex 3/4 Reach Gasket Seat Med

Autolite AR51 Power Tip Spark Plug 13/16 Hex 3/4 Reach Gasket Seat Med

$4.99

Universal Fit, Gasket Spark Plug Seat Style

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

Autolite AR3910 14mm Racing Spark Plug-5/8 Hex-Gasket-3/4 Reach-Cold

Autolite AR3910 14mm Racing Spark Plug-5/8 Hex-Gasket-3/4 Reach-Cold

$4.99

Universal Fit, Gasket Spark Plug Seat Style

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

Autolite XP103 Racing Spark Plug, 5/8 Hex, Mid Projection

Part # 373XP103

Autolite XP103 Racing Spark Plug, 5/8 Hex, Mid Projection

$6.99

Tapered Spark Plug Seat Style, 0.708" Spark Plug Reach

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.708"

Thread Pitch: 14mm x 1.25

Insulator Type: Projected

Quick View

Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach

Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach

$4.99

Universal Fit, Gasket Spark Plug Seat Style

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

Autolite AR93 Power Tip Spark Plug 5/8 Hex .708 Reach Tapered Seat Med

Autolite AR93 Power Tip Spark Plug 5/8 Hex .708 Reach Tapered Seat Med

$4.99

Universal Fit, Tapered Spark Plug Seat Style

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.708"

Thread Pitch: 14mm

Insulator Type: Non-projected

Quick View

Autolite XP5243 Racing Spark Plug, 5/8 Hex, Long Projection

Part # 373XP5243

Autolite XP5243 Racing Spark Plug, 5/8 Hex, Long Projection

$6.99

Tapered Spark Plug Seat Style, 0.708" Spark Plug Reach

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.708"

Thread Pitch: 14mm x 1.25

Insulator Type: Projected

Quick View

Autolite A353 14mm Spark Plug-13/16 Hex-Gasket Seat .375 In Reach, Med

Autolite A353 14mm Spark Plug-13/16 Hex-Gasket Seat .375 In Reach, Med

$2.99

Universal Fit, Gasket Spark Plug Seat Style, Resistor

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.375"

Thread Pitch: 14mm

Quick View

Autolite AR50 Power Tip Spark Plug 13/16 Hx 3/4 Reach Gasket

Autolite AR50 Power Tip Spark Plug 13/16 Hx 3/4 Reach Gasket

$4.04

$4.99

Universal Fit, Gasket Spark Plug Seat Style

Clearance

Spark Plug Seat Style: Gasket

Seat Taper: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Quick View

Autolite XP5245 Iridium Spark Plugs - GM Vehicles

Autolite XP5245 Iridium Spark Plugs - GM Vehicles

$22.99

$31.99

Garage Sale

Clearance

Quick View

Autolite AR92 Power Tip Spark Plug 5/8 Hx .708 Reach Tapered Seat Cold

Autolite AR92 Power Tip Spark Plug 5/8 Hx .708 Reach Tapered Seat Cold

$2.99

$4.99

Universal Fit, Tapered Spark Plug Seat Style

On Sale

Garage Sale

Spark Plug Seat Style: Tapered

Spark Plug Reach: 0.708"

Thread Pitch: 14mm

Insulator Type: Projected

Quick View

Autolite AR2592 14mm Racing Spark Plug-13/16 Hex 3/4 Reach-Gasket Seat

Autolite AR2592 14mm Racing Spark Plug-13/16 Hex 3/4 Reach-Gasket Seat

$4.99

$5.99

Universal Fit, Gasket Spark Plug Seat Style

Garage Sale

Clearance

Spark Plug Seat Style: Gasket

Spark Plug Reach: 0.75"

Thread Pitch: 14mm

Insulator Type: Projected

Quick View

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