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NGK Spark Plugs UR45

V-Power Resistor Spark Plug 14mm x .460" Reach

NGK Spark Plugs UR45

739-UR45

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NGK Spark Plugs UR45 V-Power Resistor Spark Plug 14mm x .460" Reach $3.99
V-Power Resistor Spark Plug
  • 14mm x .460" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • .059" Gap

  • Specifications:

    Manufacturer's Part Number:
    UR45

    Modern, lean-burning, fuel-efficient engines call for new lower sparking voltage requirements. NGK Spark Plugs responded by developing V-Power Spark Plugs with V-groove center electrodes. The V-groove center electrode forces the spark to the ground electrode's outer edge, placing the spark closer to the air/fuel mixture to ignite it quicker for more complete combustion (thus greater power & less harmful emissions).

    Today's performance engines are often high-compression/high-stress: supercharged, turbocharged, or fed by nitrous oxide. Ideal for high-performance street and race cars, NGK's patented V-groove design allows an ignition system to spark easily in such dense air/fuel mixtures. The flame kernel grows rapidly and enables an engine to potentially make more power because it's operating more efficiently. As a bonus, the spark's outer edge location helps limit the quenching effect, reducing misfires caused by high cylinder pressures "blowing out" the spark. V-Power Spark Plugs also use lower ignition firing voltage, which results in faster starts and easier cold starts throughout the life of the plugs. Sold individually.

    Does NGK Spark Plugs UR45 fit your vehicle?

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    1977-1978 FORD MUSTANG II

    • Liter: 5.0
    • SubModel: MACH I
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1978-1980 PONTIAC GRAND LEMANS

    • CC: 3800
    • Liter: 3.8
    • SubModel: SAFARI
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1977-1983 OLDSMOBILE DELTA 88

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1977 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: FORMULA
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1978-1979 PONTIAC PHOENIX

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1983 JEEP CJ7

    • Liter: 2.5
    • SubModel: LAREDO
    • CUI: 150
    • EngineType: L4 ( 2.5 L / 150 )

    1981 PONTIAC BONNEVILLE

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1979 FORD FAIRMONT

    • EngineType: ALL
    • SubModel: ELITE

    1984 PONTIAC PARISIENNE

    • CC: 3800
    • Liter: 3.8
    • SubModel: BROUGHAM
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1975-1977 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1983 OLDSMOBILE CUTLASS CIERA

    • EngineType: ALL
    • SubModel: ES

    1976 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FORMULA

    1980-1982 AMERICAN MOTORS SPIRIT

    • Liter: 2.5
    • SubModel: DL
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1981 OLDSMOBILE CUTLASS

    • CC: 3800
    • Liter: 3.8
    • SubModel: LS
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1986 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 5.0
    • SubModel: XLT
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1978 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: ALL

    1980 CHEVROLET MALIBU

    • Liter: 3.8
    • SubModel: CLASSIC SPORT
    • CUI: 229
    • EngineType: V6 ( 3.8 L / 229 )

    1983-1985 MERCURY GRAND MARQUIS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983-1985 BUICK CENTURY

    • EngineType: ALL
    • SubModel: T-TYPE

    1975 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: CUSTOM

    1975-1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1980 OLDSMOBILE CUTLASS SALON

    • CC: 3800
    • Liter: 3.8
    • SubModel: BROUGHAM
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1980 CHEVROLET MALIBU

    • CC: 3800
    • Liter: 3.8
    • SubModel: SPORT
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1982 FORD MUSTANG

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1978 OLDSMOBILE OMEGA

    • CC: 3800
    • Liter: 3.8
    • SubModel: SX
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1980 BUICK CENTURY

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1976 PONTIAC PARISIENNE

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980-1981 MERCURY COUGAR

    • Liter: 5.0
    • SubModel: XR-7
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1980-1981 BUICK CENTURY

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1980-1982 CADILLAC FLEETWOOD

    • Liter: 4.1
    • SubModel: BROUGHAM
    • CUI: 252
    • EngineType: V6 ( 4.1 L / 252 )

    1980-1982 CADILLAC DEVILLE

    • Liter: 4.1
    • SubModel: CABRIOLET
    • CUI: 252
    • EngineType: V6 ( 4.1 L / 252 )

    1977-1978 FORD MUSTANG II

    • Liter: 5.0
    • SubModel: GHIA
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1982 LINCOLN CONTINENTAL

    • Liter: 5.0
    • SubModel: SIGNATURE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1980-1981 CHEVROLET CAMARO

    • CC: 3800
    • Liter: 3.8
    • SubModel: BERLINETTA
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 3.8
    • SubModel: COLONNADE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1982 FORD MUSTANG

    • Liter: 4.2
    • SubModel: GL
    • CUI: 255
    • EngineType: V8 ( 4.2 L / 255 )

    1976 PONTIAC LEMANS

    • Liter: 7.5
    • SubModel: SPORT
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1978-1979 BUICK CENTURY

    • Liter: 3.2
    • SubModel: CUSTOM
    • CUI: 196
    • EngineType: V6 ( 3.2 L / 196 )

    1985 PONTIAC PARISIENNE

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1977-1981 PONTIAC CATALINA

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1974 FORD THUNDERBIRD

    • CC: 7539
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1980 CHEVROLET IMPALA

    • Liter: 3.8
    • SubModel: SPORT
    • CUI: 229
    • EngineType: V6 ( 3.8 L / 229 )

    1982 MERCURY MARQUIS

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1982-1985 OLDSMOBILE CUTLASS CIERA

    • Liter: 3.0
    • SubModel: BROUGHAM
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: FORMULA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 PONTIAC GRAND AM

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1977 PONTIAC GRAND PRIX

    • Liter: 5.7
    • SubModel: LJ
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983 JEEP CJ7

    • Liter: 2.5
    • SubModel: RENEGADE
    • CUI: 150
    • EngineType: L4 ( 2.5 L / 150 )

    1983-1985 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: COLONY PARK

    1981 OLDSMOBILE OMEGA

    • CC: 2474
    • Liter: 2.5
    • SubModel: SPORT
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1982 BUICK SKYLARK

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1981-1984 CHEVROLET MONTE CARLO

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1977-1979 LINCOLN MARK V

    • EngineType: ALL
    • SubModel: ALL

    1977-1979 PONTIAC GRAND PRIX

    • Liter: 4.9
    • SubModel: LJ
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1984 BUICK CENTURY

    • Liter: 3.0
    • SubModel: OLYMPIA LIMITED
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    1981 PONTIAC LAURENTIAN

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1982 BUICK RIVIERA

    • Liter: 4.1
    • SubModel: LIMITED EDITION
    • CUI: 252
    • EngineType: V6 ( 4.1 L / 252 )

    1979 FORD MUSTANG

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1980 JEEP CJ7

    • Liter: 2.5
    • SubModel: GOLDEN HAWK
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1979-1981 BUICK CENTURY

    • EngineType: ALL
    • SubModel: SPORT

    1980 FORD GRANADA

    • Liter: 4.2
    • SubModel: GHIA
    • CUI: 255
    • EngineType: V8 ( 4.2 L / 255 )

    1975 OLDSMOBILE 98

    • Liter: 6.6
    • SubModel: LUXURY
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980 MERCURY MONARCH

    • Liter: 4.2
    • SubModel: BASE
    • CUI: 255
    • EngineType: V8 ( 4.2 L / 255 )

    1974 MERCURY MARQUIS

    • CC: 7539
    • Liter: 7.5
    • SubModel: BROUGHAM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1976 PONTIAC CATALINA

    • EngineType: ALL
    • SubModel: CATALINA

    1980 PONTIAC PARISIENNE

    • Liter: 5.7
    • SubModel: SAFARI
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985 OLDSMOBILE 98

    • CC: 3800
    • Liter: 3.8
    • SubModel: REGENCY BROUGHAM
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1982-1983 JEEP SCRAMBLER

    • Liter: 2.5
    • SubModel: SR
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1984-1987 PONTIAC GRAND PRIX

    • CC: 3800
    • Liter: 3.8
    • SubModel: LE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1980 PONTIAC LEMANS

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1982 LINCOLN CONTINENTAL

    • Liter: 5.0
    • SubModel: GIVENCHY
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1975 PONTIAC VENTURA

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 PONTIAC LEMANS

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1978-1979 BUICK CENTURY

    • Liter: 3.2
    • SubModel: LIMITED
    • CUI: 196
    • EngineType: V6 ( 3.2 L / 196 )

    1985 OLDSMOBILE CUTLASS CIERA

    • EngineType: ALL
    • SubModel: GT

    1980 CHEVROLET MONTE CARLO

    • CC: 3800
    • Liter: 3.8
    • SubModel: SPORT
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1982-1983 OLDSMOBILE 98

    • Liter: 4.1
    • SubModel: REGENCY BROUGHAM
    • CUI: 252
    • EngineType: V6 ( 4.1 L / 252 )

    1981 PONTIAC FIREBIRD

    • CC: 3800
    • Liter: 3.8
    • SubModel: FORMULA
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1975-1977 BUICK REGAL

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 CHEVROLET MONZA

    • CC: 2294
    • Liter: 2.3
    • SubModel: 2+2
    • CUI: 140
    • EngineType: L4 ( 2.3 L / 140 )

    1982 PONTIAC GRAND PRIX

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 252
    • EngineType: V6 ( 4.1 L / 252 )

    1978-1979 BUICK REGAL

    • Liter: 3.2
    • SubModel: LIMITED
    • CUI: 196
    • EngineType: V6 ( 3.2 L / 196 )

    1977 OLDSMOBILE CUTLASS

    • Liter: 3.8
    • SubModel: COLONNADE S
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1981-1985 BUICK LESABRE

    • CC: 3800
    • Liter: 3.8
    • SubModel: LIMITED
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1978 BUICK LESABRE

    • EngineType: ALL
    • SubModel: SPORT

    1975 PONTIAC LEMANS

    • Liter: 5.7
    • SubModel: SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 CHEVROLET MALIBU

    • CC: 3800
    • Liter: 3.8
    • SubModel: CLASSIC ESTATE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1982 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GT

    1977 MERCURY MARQUIS

    • EngineType: ALL
    • SubModel: ALL

    1981 MERCURY COUGAR

    • Liter: 4.2
    • SubModel: BASE
    • CUI: 255
    • EngineType: V8 ( 4.2 L / 255 )

    1987 BUICK REGAL

    • Liter: 3.8
    • SubModel: LIMITED
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1987-1996 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1980-1981 FORD MUSTANG

    • Liter: 4.2
    • SubModel: BASE
    • CUI: 255
    • EngineType: V8 ( 4.2 L / 255 )

    1981-1984 CHEVROLET EL CAMINO

    • Liter: 3.8
    • SubModel: CONQUISTA
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1974 MERCURY COLONY PARK

    • CC: 7539
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1979 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1984-1985 FORD THUNDERBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1980-1981 PONTIAC GRAND LEMANS

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1979-1980 BUICK REGAL

    • Liter: 4.9
    • SubModel: LIMITED
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1982 PONTIAC FIREBIRD

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )
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