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NGK Spark Plugs UR55

V-Power Resistor Spark Plug 14mm x 7/16" Reach

NGK Spark Plugs UR55

739-UR55

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Estimated ship date 11/28/17 if Ordered Today
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NGK Spark Plugs UR55 V-Power Resistor Spark Plug 14mm x 7/16" Reach $1.69
V-Power Resistor Spark Plug
  • 14mm x 7/16" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • .059" Gap

  • Specifications:

    Manufacturer's Part Number:
    UR55

    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.

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    Does NGK Spark Plugs UR55 fit your vehicle?

    Narrow Results

    1984-1992 BUICK CENTURY

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

    1991 PONTIAC GRAND AM

    • EngineType: ALL
    • SubModel: VALUE LEADER

    1984-1985 CHEVROLET CITATION II

    • CC: 2474
    • Liter: 2.5
    • SubModel: X-11
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1984-1990 CHEVROLET CELEBRITY

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

    1978 CHEVROLET MONZA

    • CC: 2474
    • Liter: 2.5
    • SubModel: 2+2 SPORT
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1984 OLDSMOBILE OMEGA

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

    1985 GMC SAFARI

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

    1987 PONTIAC GRAND AM

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

    1985 PONTIAC FIREBIRD

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

    1975 CHEVROLET VEGA

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

    1985 GMC S15 JIMMY

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

    1985-1986 OLDSMOBILE CUTLASS CIERA

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

    1978 PONTIAC SUNBIRD

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

    1978 CHEVROLET MONZA

    • CC: 2474
    • Liter: 2.5
    • SubModel: 2+2
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1985-1988 GMC S15 JIMMY

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

    1988 PONTIAC FIERO

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

    1993 GMC SONOMA

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

    1978 OLDSMOBILE STARFIRE

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

    1986-1987 OLDSMOBILE CALAIS

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

    1984 OLDSMOBILE OMEGA

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

    1984 PONTIAC PHOENIX

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

    1984-1985 OLDSMOBILE CUTLASS CIERA

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

    1978 PONTIAC SUNBIRD

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

    1990-1992 CHEVROLET LUMINA

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

    1989-1990 OLDSMOBILE CUTLASS CALAIS

    • EngineType: ALL
    • SubModel: GT

    1978 CHEVROLET MONZA

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

    1992-1993 CHEVROLET S10 PICKUP

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

    1985-1989 CHEVROLET S10 PICKUP

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

    1992-1996 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: XLT HD
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1991 OLDSMOBILE CUTLASS CALAIS

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

    1985 BUICK SOMERSET REGAL

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

    1988-1989 OLDSMOBILE CUTLASS CRUISER

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

    1984 OLDSMOBILE OMEGA

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

    1978 CHEVROLET MONZA

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

    1984 PONTIAC FIERO

    • EngineType: ALL
    • SubModel: ALL

    1985 BUICK SOMERSET REGAL

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

    1984-1985 CHEVROLET CITATION II

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

    1988-1989 OLDSMOBILE CUTLASS CALAIS

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

    1986 OLDSMOBILE CALAIS

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

    1984 PONTIAC FIREBIRD

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

    1975 CHEVROLET VEGA

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

    1985 CHEVROLET ASTRO

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

    1985-1986 OLDSMOBILE CUTLASS CIERA

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

    1987-1993 CHEVROLET LLV

    • EngineType: ALL
    • SubModel: ALL

    1985 PONTIAC FIERO

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

    1975 CHEVROLET VEGA

    • EngineType: ALL
    • SubModel: ESTATE WAGON

    1989 CHEVROLET CELEBRITY

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

    1985-1990 GMC S15 PICKUP

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

    1990-1991 BUICK SKYLARK

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

    1985-1988 CHEVROLET S10 BLAZER

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

    1984 PONTIAC PHOENIX

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

    1986-1987 BUICK SOMERSET

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

    1984-1986 CHEVROLET CAMARO

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

    1991-1993 GMC SONOMA

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

    1991-1993 GMC SONOMA

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

    1978 CHEVROLET MONZA

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

    1978 PONTIAC PHOENIX

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

    1992-1996 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1985-1990 GMC S15 PICKUP

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

    1985-1988 PONTIAC GRAND AM

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

    1988 OLDSMOBILE CUTLASS CRUISER

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

    1984 BUICK CENTURY

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

    1985-1990 CHEVROLET ASTRO

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

    1985 CHEVROLET ASTRO

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

    1988-1992 OLDSMOBILE CUTLASS CIERA

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

    1986-1988 OLDSMOBILE CUTLASS CIERA

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

    1985-1993 CHEVROLET S10 PICKUP

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

    1992-1993 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: CUSTOM HD
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1985-1990 GMC S15 PICKUP

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

    1986-1987 PONTIAC FIERO

    • EngineType: ALL
    • SubModel: SPORT

    1985-1988 GMC S15 JIMMY

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

    1991 OLDSMOBILE CUTLASS CALAIS

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

    1985-1991 PONTIAC GRAND AM

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

    1985-1987 OLDSMOBILE CALAIS

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

    1987-1988 CHEVROLET S10 BLAZER

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

    1990-1991 BUICK SKYLARK

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

    1986-1987 BUICK SOMERSET

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

    1978 OLDSMOBILE STARFIRE

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

    1978 CHEVROLET MONZA

    • CC: 2474
    • Liter: 2.5
    • SubModel: 2+2 SPYDER
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1985 CHEVROLET CELEBRITY

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

    1978 PONTIAC PHOENIX

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

    1987-1988 OLDSMOBILE CUTLASS CRUISER

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

    1986-1987 PONTIAC FIERO

    • EngineType: ALL
    • SubModel: VALUE LEADER

    1985-1988 CHEVROLET S10 BLAZER

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

    1986-1987 OLDSMOBILE CUTLASS CIERA

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

    1984 PONTIAC FIREBIRD

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

    1978 PONTIAC PHOENIX

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

    1984-1988 PONTIAC 6000

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

    1978 OLDSMOBILE STARFIRE

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

    1985-1987 PONTIAC FIERO

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

    1983-1989 BUICK SKYLARK

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

    1985 PONTIAC FIERO

    • EngineType: ALL
    • SubModel: BASE

    1992-1996 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: CHATEAU HD
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1986-1990 OLDSMOBILE CUTLASS CIERA

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

    1986-1988 GMC S15 PICKUP

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

    1987 OLDSMOBILE CUTLASS CRUISER

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

    1984 BUICK CENTURY

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

    1994-1996 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: XL HD
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1989 PONTIAC 6000

    • EngineType: ALL
    • SubModel: BASE

    1985 GMC SAFARI

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