NGK
NGK Iridium IX Spark Plug (TR4IX) 7300
NGK Iridium IX Spark Plug (TR4IX) 7300
Part number: 9WJUF
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$8.33 USD
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$8.33 USD
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Iridium IX Spark Plug 7300 from NGK. The part number and specifications are listed below. Worn plugs, cracked wires and weak coils cause misfires, rough running and poor economy.
Quick facts
- Brand: NGK
- Part type: Ignition part
Listed fitment
- 1987 - 1989 Buick Century Base, Estate Wagon
- 1987 - 1993 Buick Century Custom, Limited
- 1993 Buick Century Special
- 2010 Buick Lucerne CXL Special Edition
- 2009 - 2011 Buick Lucerne Super, CX, CXL
- 1989 - 1993 Buick Regal Gran Sport
- 1988 - 1993 Buick Regal Limited, Custom
- 1987 - 1989 Buick Skyhawk Custom
- 1987 Buick Skyhawk Limited, Sport, T-Type
- 1988 - 1989 Buick Skyhawk SE
- 2006 - 2007 Buick Terraza CX, CXL
- 1987 - 1988 Cadillac Cimarron Base
- 1987 - 1993 Chevrolet Beretta Base
- 1989 - 1993 Chevrolet Beretta GT
- 1990 - 1993 Chevrolet Beretta GTZ
- 1990 Chevrolet Beretta Indianapolis 500 Pace Car
- 1987 - 1994 Chevrolet Cavalier Base, Z24, RS
- 1987 Chevrolet Cavalier CS
- 1988 - 1994 Chevrolet Cavalier VL
- 1989 Chevrolet Celebrity CL
- 1987 Chevrolet Celebrity Estate
- 1987 - 1990 Chevrolet Celebrity Eurosport, Base
- 1987 - 1989 Chevrolet Corsica Base
- 1987 - 1993 Chevrolet Corsica LT
- 1989 - 1992 Chevrolet Corsica LTZ
- 2008 Chevrolet Impala 50th Anniversary Edition
- 2006 - 2011 Chevrolet Impala LTZ, LS, LT, Police
- 2006 - 2009 Chevrolet Impala SS
- 1990 - 1994 Chevrolet Lumina Euro, Base
- 1991 - 1994 Chevrolet Lumina Z34
- 2006 - 2009 Chevrolet Malibu Base
- 2008 Chevrolet Malibu Classic LS, Classic LT
- 2008 - 2010 Chevrolet Malibu Hybrid
- 2006 - 2010 Chevrolet Malibu LTZ, LT, LS
- 2006 - 2007 Chevrolet Malibu Maxx SS, Maxx LTZ, SS, Maxx LS, Maxx LT
- 2006 - 2007 Chevrolet Monte Carlo LS, SS, LT
- 2006 Chevrolet Monte Carlo LTZ
- 2006 - 2009 Chevrolet Uplander LS, LT, Base
- 1988 - 1993 Oldsmobile Cutlass Ciera Base
- 1987 - 1988 Oldsmobile Cutlass Ciera Brougham, LS
- …and 42 more
Tip: Set the spark plug gap to your engine spec and do not over-torque plugs in aluminum heads.
About this ignition part
Ignition parts are routine maintenance and among the easiest ways to restore smooth running.
Fitment notes
- Specs, lead time and warranty come from NGK and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentParts that usually go with it
- Plug wires or boots. Old wires and boots crack.
More for your car: Spark Plugs · All Spark Plugs · Batteries & electrical
Questions about ignition part
Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
How often should spark plugs be replaced?
Your maintenance schedule lists it; long-life plugs often go 60,000 to 100,000 miles.
Where do specs and warranty details come from?
From NGK. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
Questions & answers
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