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NGK Spark Plugs YR55IX - NGK Iridium IX Spark Plugs



NGK Spark Plugs YR55IX - NGK Iridium IX Spark Plugs

JEGS Part Number: 739-YR55IX

Iridium IX Spark Plug
  • 14mm x .460" Reach
  • 5/8" Hex
  • Tapered seat
  • .059" Gap
  • Sold Individually
  • $8.99
    Ships 08/03/16
    if Ordered Today

    Specifications:

    Manufacturer's Part Number:
    YR55IX

    The Plug for Serious Enthusiasts
    Iridium has a very high melting point that's perfect for high-performance, high-tech engines. It is stronger than any other metal used in spark plugs.

  • Ultra-fine electrode (thin enough for spark consistency & accuracy, thick enough for max durability & longevity)
  • Reduces spark voltage requirement
  • Fuel efficiency & extreme ignitability
  • Improved throttle response
  • Outstanding acceleration
  • Superior antifouling, anticorrosion, and antiseizing properties
  • Quality NGK Spark Plugs
  • Sold individually

  • Does this fit your vehicle?

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    1977-1978 CHEVROLET C10 PICKUP

    • EngineType: V8
    • SubModel: CUSTOM

    1974 GMC G25/G2500 VAN

    • EngineType: V8
    • SubModel: VANDURA

    1976 CHEVROLET G30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SPORTVAN

    1975 OLDSMOBILE OMEGA

    • Liter: 4.1
    • SubModel: SALON
    • CUI: 250
    • EngineType: L6

    1975 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: LT

    1974 CHEVROLET G20 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977-1978 GMC G15/G1500 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: VANDURA

    1975 GMC C3500 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET EL CAMINO

    • EngineType: ALL
    • SubModel: CLASSIC

    1975 CHEVROLET P30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET C30 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1974 GMC G15/G1500 VAN

    • EngineType: V8
    • SubModel: RALLY

    1975 CHEVROLET G30 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET P30 VAN

    • EngineType: L6
    • SubModel: STEP-VAN

    1977 GMC G25/G2500 VAN

    • Liter: 6.6
    • EngineType: V8
    • SubModel: RALLY

    1975 CHEVROLET G10 VAN

    • EngineType: L6
    • SubModel: BASE

    1975 GMC C25 SUBURBAN

    • EngineType: L6
    • SubModel: BASE

    1975 PONTIAC VENTURA

    • EngineType: L6
    • SubModel: S

    1975 GMC SPRINT

    • EngineType: V8
    • SubModel: CUSTOM

    1975 GMC K25 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET IMPALA

    • EngineType: ALL
    • SubModel: SPORT

    1975 CHEVROLET LAGUNA

    • Liter: 5.7
    • EngineType: V8
    • SubModel: S3

    1977 CHEVROLET G30 VAN

    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET EL CAMINO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 GMC G25/G2500 VAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: RALLY

    1977-1978 CHEVROLET K10 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET BEL AIR

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1977-1978 CHEVROLET C20 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 PONTIAC FIREBIRD

    • EngineType: L6
    • SubModel: BASE

    1974 GMC G35/G3500 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: RALLY

    1977-1978 GMC G25/G2500 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: VANDURA

    1978 CHEVROLET G20 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: NOMAD

    1975 CHEVROLET CORVETTE

    • Liter: 5.7
    • SubModel: STINGRAY
    • CUI: 350
    • EngineType: V8

    1975 CHEVROLET K20 PICKUP

    • EngineType: L6
    • SubModel: BASE

    1975 CHEVROLET P30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: STEP-VAN

    1977-1978 GMC JIMMY

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 GMC G15/G1500 VAN

    • EngineType: L6
    • SubModel: RALLY

    1975 GMC C25/C2500 PICKUP

    • EngineType: L6
    • SubModel: BASE

    1975 CHEVROLET NOVA

    • Liter: 4.3
    • SubModel: CUSTOM
    • CUI: 262
    • EngineType: V8

    1975 CHEVROLET K10 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 GMC K15 SUBURBAN

    • EngineType: L6
    • SubModel: BASE

    1975 GMC SPRINT

    • EngineType: ALL
    • SubModel: SP

    1976-1978 CHEVROLET G20 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977-1978 CHEVROLET C30 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 GMC G15/G1500 VAN

    • EngineType: L6
    • SubModel: VANDURA

    1977 GMC K35 PICKUP

    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET CAPRICE

    • Liter: 6.6
    • SubModel: CLASSIC
    • CUI: 400
    • EngineType: V8

    1977-1978 GMC K25 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1978 GMC G35/G3500 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: VANDURA

    1975 PONTIAC VENTURA

    • EngineType: L6
    • SubModel: BASE

    1977-1978 CHEVROLET P30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 GMC C25 SUBURBAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET K20 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 OLDSMOBILE CUTLASS

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1977-1978 GMC C25 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977 CHEVROLET K20 SUBURBAN

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1975 GMC K15 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET IMPALA

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1975 CHEVROLET C20 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1975 GMC C3500 PICKUP

    • EngineType: L6
    • SubModel: BASE

    1975 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1975 PONTIAC VENTURA

    • EngineType: L6
    • SubModel: SJ

    1975 CHEVROLET MALIBU

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1975 GMC JIMMY

    • EngineType: L6
    • SubModel: BASE

    1976-1977 GMC SPRINT

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977-1978 CHEVROLET K20 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977 CHEVROLET K10 SUBURBAN

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1977-1978 CHEVROLET K20 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1978 GMC CABALLERO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET EL CAMINO

    • EngineType: L6
    • SubModel: BASE

    1975 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: CLASSIC ESTATE
    • CUI: 350
    • EngineType: V8

    1975 CHEVROLET IMPALA

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8

    1977 GMC G25/G2500 VAN

    • Liter: 6.6
    • EngineType: V8
    • SubModel: VANDURA

    1975 GMC G25/G2500 VAN

    • EngineType: L6
    • SubModel: RALLY

    1976-1978 CHEVROLET G20 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SPORTVAN

    1975 CHEVROLET G20 VAN

    • EngineType: L6
    • SubModel: BASE

    1975 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8

    1975 CHEVROLET C10 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1978 CHEVROLET G30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SPORTVAN

    1975 GMC K25 PICKUP

    • EngineType: L6
    • SubModel: BASE

    1977-1978 CHEVROLET P30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: STEP-VAN

    1974 CHEVROLET G30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET NOVA

    • EngineType: V8
    • SubModel: POLICE

    1975 GMC SPRINT

    • EngineType: V8
    • SubModel: BASE

    1975 GMC C15 SUBURBAN

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET C10 PICKUP

    • EngineType: L6
    • SubModel: BASE

    1975 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1975 CHEVROLET CAPRICE

    • Liter: 7.4
    • SubModel: CLASSIC
    • CUI: 454
    • EngineType: V8

    1977-1978 GMC C15 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET MONTE CARLO

    • Liter: 5.7
    • SubModel: S
    • CUI: 350
    • EngineType: V8

    1974 CHEVROLET G10 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1974 CHEVROLET G20 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SPORTVAN

    1975 CHEVROLET K20 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977 GMC G35/G3500 VAN

    • EngineType: V8
    • SubModel: RALLY

    1975 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1975 GMC C25/C2500 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET P20 VAN

    • EngineType: ALL
    • SubModel: ALL

    1976-1978 CHEVROLET G10 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977 CHEVROLET K10 PICKUP

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE