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Spark Plug NGK
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Spark Plug (NGK) for 1974-2020 Aston Martin, Audi, Buick, Cadillac, Chevrolet, DeLorean, Dodge, Eagle, Ford, GMC, Hummer, Isuzu, Jaguar, Mazda, Mercedes-Benz, Mercury, Merkur, Oldsmobile, Panoz, Peugeot, Pontiac, Renault, Saab, & Volvo

$14.32
Save up to 80% vs List Price!

ℹ️ Product Notes

⚠️ Most jobs typically require 8 of this item.
Gap 0.025"
Iridium IX Spark Plug
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
Brand: NGK
Condition: New
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100% Money-Back Guarantee
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120-Day Returns
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Insurance-Grade Quality

🛡️ Lifetime Warranty Included

This part comes with our industry-leading lifetime warranty. Shop with confidence!

SKU #
F1FDFE4
  • New Condition
  • NGK Quality
  • Easy Installation - No Modifications
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Product Specifications


Detailed specifications and attributes for this part:

Attribute Value
Center Electrode Core Material Copper
Center Electrode Design Fine Wire
Center Electrode Insulator Tip Projection 0.16, 4.0
Center Electrode Projection Mid Projection
Center Electrode Tip Material Iridium
Electrical Terminal Type Non-removable Nut
Grade Type Performance
Ground Configuration J-gap
Ground Electrode Core Material Nickel
Ground Electrode Quantity 1
Ground Electrode Tip Design Taper Cut
Ground Electrode Tip Material Nickel
Hex Size 5/8" (16mm)
Insulator Height 2.07, 52.5
Insulator Material Ceramic
Manufacturer Heat Range 5
Material Grade Iridium
Part Number Tr5ix
Pre Gap Size .040, 1.0
Reach 0.689, 17.5
Resistance 5000.0
Resistor Type Yes
Seat Type Tapered
Service Number Tr5ix
Short Style Spark Plug No
Skirt No
Skirt Length 0.0
Stock Number 7397
Thread Diameter 0.551, 14.0
Washer Included No

Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
Aston Martin DB7
Audi V8 Quattro
Buick Allure, Century, Electra, LaCrosse, LeSabre, Rainier, Riviera, Skylark, Somerset, Somerset Regal
Cadillac CTS, Escalade, Escalade ESV, Escalade EXT, SRX, STS, XLR
Chevrolet Avalanche, Avalanche 1500, Camaro, Caprice, Cavalier, Colorado, Corvette, Express 1500, Express 2500, Express 3500, Impala, Lumina, Monte Carlo, S10, Silverado 1500, Silverado 1500 Classic, Silverado 1500 HD, Silverado 1500 HD Classic, Silverado 2500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic, Silverado 3500 HD, SS, SSR, Suburban 1500, Suburban 2500, Suburban 3500 HD, Tahoe, Trailblazer, Trailblazer EXT, Vega
DeLorean DMC 12
Dodge Monaco
Eagle Medallion, Premier
Ford Aerostar, Bronco II, Courier, E-150, E-250, E-250 Econoline, E-350 Club Wagon, E-350 Econoline, E-350 Econoline Club Wagon, E-350 Super Duty, Escape, Escort, EXP, F-100, F-150, F-150 Heritage, F-250, Fairmont, Fiesta, Fusion, Granada, LTD, Mustang, Mustang II, Pinto, Probe, Ranger, Taurus, Tempo, Thunderbird, Windstar
GMC Canyon, Envoy, Envoy XL, Envoy XUV, Savana 1500, Savana 2500, Savana 3500, Sierra 1500, Sierra 1500 Classic, Sierra 1500 HD, Sierra 1500 HD Classic, Sierra 2500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Sonoma, Yukon, Yukon XL 1500, Yukon XL 2500
Hummer H2, H3, H3T
Isuzu Ascender, Hombre
Jaguar XJ12, XJS
Mazda 6, B2300, B2500, B3000, MPV, Tribute
Mercedes-Benz 190E, 260E, 300CE, 300E, 300SE, 300SEL, 300TE
Mercury Bobcat, Capri, Cougar, LN7, Lynx, Mariner, Marquis, Milan, Sable, Topaz, Zephyr
Merkur Scorpio, XR4Ti
Oldsmobile 98, Calais, Cutlass Calais, Cutlass Ciera, Cutlass Cruiser, Cutlass Supreme, Delta 88, Toronado
Panoz AIV Roadster, Esperante
Peugeot 505, 604
Pontiac Bonneville, Firebird, G8, Grand Am, Grand Prix, GTO, Sunfire
Renault Fuego, R18i
Saab 9-7x
Volvo 262, 264, 265, 760, 780

This is a universal part that fits 4,008 vehicle configurations across 24 makes.

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

More Information


NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Interchange Parts

Brand Part Number
Omnicraft QSP4

Fits Years: 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

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