NGK Racing Spark Plugs Product images may differ from actual product appearance. For many years, NGK Spark Plugs have been firing race engines to victory around the world. NGK knows that race vehicles are pushed to the edge so NGK designs every spark plug to withstand severe mechanical and thermal shock. You can be confident on the track because of NGK's dedication off the track. Sold individually. NGK Racing Spark Plugs feature: Fine-wire center electrodes for enhanced sparking and ignitability OR fine-wire ground electrodes for even better ignitability Electrodes made with precious metals, such as platinum or gold/palladium, for lower voltage requirements & greater durability Special insulator configurations for improved throttle response

739-R5670-5

Racing Non-Resistor Spark Plug 14mm x 3/8" Reach 13/16" Hex Gasket seat V-groove center electrode View this item Fits Applications

$2.69 Ships

739-R5670-6

Racing Non-Resistor Spark Plug 14mm x 3/8" Reach 13/16" Hex Gasket seat V-groove center electrode View this item Fits Applications

$2.69 Ships

739-R5673-6

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5674-6

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Projected Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5670-7

Racing Non-Resistor Spark Plug 14mm x 3/8" Reach 13/16" Hex Gasket seat V-groove center electrode View this item

$2.69 Ships

739-R5671A-7

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Gasket seat V-groove center electrode View this item

$2.69 Ships

739-R5673-7

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5674-7

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Projected Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R7282-7

Racing Resistor Spark Plug 14mm x 3/4" reach 5/8" hex Gasket Seat Fine Wire Iridium Center Electrode Platinum Tipped Angled Ground Electrode View this item

$42.99 Ships

739-R7376-7

Racing Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat Iridium View this item

$32.99 Ships

739-B8EGV

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat Gold palladium View this item

$6.99 Ships

739-R5670-8

Racing Non-Resistor Spark Plug 14mm x 3/8" Reach 13/16" Hex Gasket seat V-groove center electrode View this item

$2.69 Ships

739-R5671A-8

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Gasket seat V-groove center electrode View this item

$2.69 Ships

739-R5672A-8

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Projected Gasket seat V-groove center electrode View this item

$2.69 Ships

739-R5673-8

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5674-8

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Projected Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5724-8

Racing Non-Resistor Spark Plug 14mm x .708" Reach 5/8" Hex Projected Tapered seat View this item

$2.69 Ships

739-R6061-8

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat View this item

$8.99 Ships 02/21/12

739-R6601-8

Racing Resistor Spark Plug 141mm x 0.750" reach 5/8" hex Gasket Seat Nickel View this item

$26.99 Ships

739-R7376-8

Racing Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat Iridium View this item

$32.99 Ships 02/18/12

739-R7433-8

Racing Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex ISO projected Gasket seat Iridium View this item

$46.99 Ships 02/21/12

739-R7437-8

Racing Resistor Spark Plug 14mm x 26.5mm Reach 5/8" Hex Projected Gasket seat Iridium View this item

$46.99 Ships 02/21/12

739-B9EG

Racing Non-Resistor Spark Plug 14mm x 3/4" reach 13/16" hex Gasket Seat Each View this item

$4.99 Ships

739-B9EGV

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat Gold palladium View this item

$4.69 Ships

739-R2349-9

Racing Resistor Spark Plug 12mm x 3/4" Reach 5/8" Hex Gasket seat Solid Terminal Nut View this item

$62.99 Ships

739-R5670-9

Racing Non-Resistor Spark Plug 14mm x 3/8" Reach 13/16" Hex Gasket seat V-groove center electrode View this item

$2.69 Ships

739-R5671A-9

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Gasket seat V-groove center electrode View this item

$2.69 Ships

739-R5672A-9

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Projected Gasket seat V-groove center electrode View this item

$2.69 Ships 02/24/12

739-R5673-9

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5674-9

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Projected Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5724-9

Racing Non-Resistor Spark Plug 14mm x .708" Reach 5/8" Hex Projected Tapered seat View this item

$2.69 Ships

739-R5883-9

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Surface discharge Gasket seat View this item

$67.99 Ships 02/21/12

739-R6061-9

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat View this item

$8.99 Ships

739-R6918C-9

Racing Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Platinum Low Angle Ground Electrode Gasket seat View this item

$31.99 Ships

739-R7376-9

Racing Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat Iridium View this item

$32.99 Ships 02/21/12

739-R7435-9

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Projected Gasket seat Iridium View this item

$37.99 Ships

739-ME-8

Racing Non-Resistor Spark Plug 0.219" Reach .31" Hex Gasket Seat Platinum Tipped Electrode More info on NGK Spark Plugs ME-8

$19.99 Ships 03/13/12

739-R0373A-10

Racing Resistor Spark Plug 10mm x 0.750" reach 5/8" hex Gasket Seat Fine Wire Iridium Center Electrode Platinum Tipped Angled Ground Electrode Does not include terminal nut View this item

$83.99 Ships

739-R2349-10

Racing Resistor Spark Plug 12mm x 3/4" Reach 5/8" Hex Gasket seat Solid Terminal Nut View this item

$62.99 Ships

739-R2525-10

Racing Resistor Spark Plug 12mm x 3/4" Reach 5/8" Hex Gasket seat Platinun View this item

$31.99 Ships

739-R5671A-10

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Gasket seat V-groove center electrode View this item

$2.69 Ships 02/24/12

739-R5672A-10

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Projected Gasket seat V-groove center electrode View this item

$2.69 Ships 02/24/12

739-R5673-10

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5674-10

Racing Non-Resistor Spark Plug 14mm x .460" Reach 5/8" Hex Projected Tapered seat V-groove center electrode View this item

$2.69 Ships

739-R5724-10

Racing Non-Resistor Spark Plug 14mm x .708" Reach 5/8" Hex Projected Tapered seat View this item

$2.69 Ships

739-R6061-10

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat View this item

$6.99 Ships

739-R6252E-105

Racing Resistor Spark Plug 14mm x 3/4" reach 13/16" hex Gasket Seat Nickel Alloy Fine Wire Center and Ground Electrodes View this item

$8.99 Ships

739-R6601-10

Racing Resistor Spark Plug 14mm x 3/4" reach 5/8" hex Gasket Seat Surface Discharge Solid Terminal Nut View this item

$31.99 Ships 02/21/12

739-R6725-105

Racing Resistor Spark Plug 14mm x 21.5mm Reach 13/16" Hex Gasket seat Platinum View this item

$35.99 Ships 02/21/12

739-R7376-10

Racing Resistor Spark Plug 14mm x 3/4" Reach 13/16" Hex Gasket seat Iridium View this item

$32.99 Ships 02/21/12

739-R7434-10

Racing Resistor Spark Plug 14mm x 3/4" reach 5/8" hex Gasket Seat Iridium Tipped Center Electrode Fine Wire Angled Ground Electrode View this item

$42.99 Ships

739-R7436-10

Racing Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Iridium JIS, Low Angle Ground Electrode Gasket seat View this item

$42.99 Ships

739-R847-11

Racing Resistor Spark Plug 8mm x 3/4" reach 1/2" hex Gasket Seat Surface gap Does not Include Terminal Nut View this item

$31.99 Ships 02/21/12

739-R5671A-11

Racing Non-Resistor Spark Plug 14mm x 3/4" Reach 5/8" Hex Gasket seat V-groove center electrode View this item

$2.69 Ships

739-R6601-11

Racing Resistor Spark Plug 14mm x 3/4" reach 5/8" hex Gasket Seat Surface Discharge Solid Terminal Nut View this item

$17.99 Ships

739-R6725-11

Racing Resistor Spark Plug 14mm x 21.5mm reach 13/16" hex Gasket seat Platinum View this item

$32.99 Ships 02/21/12

739-R6725-115

Racing Resistor Spark Plug 14mm x 21.5mm Reach 13/16" Hex Gasket seat Platinum View this item

$32.99 Ships 02/24/12

739-R7440B-11T

Racing Resistor Spark Plug 14mm x 3/4" reach 13/16" hex Gasket Seat Low Angled Ground Electrode Iridium Center Electrode Platinum Tipped Ground Electrode View this item

$104.99 Ships

739-R847-10

Racing Resistor Spark Plug 3/4" Reach 1/2" Hex Gasket Seat More info on NGK Spark Plugs R847-10

$31.99 Ships