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AUTOLITE IRIDIUM XP


Iridium Spark Plug

XP5243

Product Description

When you're passionate about performance, you need a technologically advanced plug. Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability* and a more focused ignition for better overall ignitability** providing optimum performance. Now with a lifetime limited warranty.

*Compared to 0.8mm finewire, multi-electrode design and standard plugs
**Compared to average of other premium brands .

Product Specs

Thread Size 14mm X 1.25
Reach .708"
Hex Size 5/8" (16mm)
Seat Type Tapered
Tip Configuration Long Projection
Resistor Resistor
Special Feature(s) Finewire
Gap .044"/1.1mm
Heat Range Chart Row 34
Metal Type Iridium
Terminal Type Solid
Package Qty 1

Where to Buy

  • Applications where used
    Make
    Model
    Year
    Notes
    Gap
    CADILLAC CTS 2006-2007 V8 6.0 .050"/1.3mm
    OE Style
    CADILLAC CTS 2009-2015 V8 6.2 .040"/1.0mm
    OE Style
    CADILLAC ESCALADE 2011-2013 V8 6.0 .040"/1.0mm
    OE Style
    CADILLAC ESCALADE 2007-2016 V8 6.2 .040"/1.0mm
    OE Style
    CADILLAC ESCALADE ESV 2007-2016 V8 6.2 .040"/1.0mm
    OE Style
    CADILLAC ESCALADE EXT 2007-2013 V8 6.2 .040"/1.0mm
    OE Style
    CHEVROLET AVALANCHE 2013 V8 5.3 .040"/1.0mm
    OE Style
    CHEVROLET CAMARO 2010-2015 V8 6.2 .040"/1.0mm
    OE Style
    CHEVROLET CAPRICE 2013-2017 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET CORVETTE 2008-2013 V8 6.2 .040"/1.0mm
    OE Style
    CHEVROLET CORVETTE 2006-2013 V8 7.0 .040"/1.0mm
    OE Style
    CHEVROLET EXPRESS 1500 2011-2014 V8 5.3 .040"/1.0mm
    OE Style
    CHEVROLET EXPRESS 2500 2013-2017 V8 4.8 .040"/1.0mm
    OE Style
    CHEVROLET EXPRESS 2500 2011-2020 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET EXPRESS 3500 2011-2017 V8 4.8 .040"/1.0mm
    OE Style
    CHEVROLET EXPRESS 3500 2011-2020 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET EXPRESS 4500 2009-2020 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET IMPALA 2006-2009 V8 5.3 .040"/1.0mm
    OE Style
    CHEVROLET LCF 3500 2016-2018 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET LUMINA 1991-1995 V6 3.4 .045"/1.1mm
    CHEVROLET MONTE CARLO 1995 V6 3.4 .045"/1.1mm
    CHEVROLET SILVERADO 1500 2011-2013 V8 4.8 .040"/1.0mm
    OE Style
    CHEVROLET SILVERADO 1500 2011-2013 V8 5.3 .040"/1.0mm
    OE Style
    CHEVROLET SILVERADO 1500 2011-2013 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET SILVERADO 1500 2011-2013 V8 6.2 .040"/1.0mm
    OE Style
    CHEVROLET SILVERADO 2500 HD 2011-2019 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET SILVERADO 3500 HD 2011-2019 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET SS 2014-2017 V8 6.2 .040"/1.0mm
    OE Style
    CHEVROLET SSR 2003-2004 V8 5.3 .040"/1.0mm
    OE Style
    CHEVROLET SSR 2005-2006 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET SUBURBAN 1500 2013-2014 V8 5.3 .040"/1.0mm
    OE Style
    CHEVROLET SUBURBAN 2500 2013 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET SUBURBAN 3500 HD 2016-2019 V8 6.0 .040"/1.0mm
    OE Style
    CHEVROLET TAHOE 2011-2014 V8 5.3 .040"/1.0mm
    OE Style
    CHEVROLET TAHOE 2010-2013 V8 6.0 .040"/1.0mm
    OE Style
    GMC SAVANA 1500 2013-2014 V8 5.3 .040"/1.0mm
    OE Style
    GMC SAVANA 2500 2013-2017 V8 4.8 .040"/1.0mm
    OE Style
    GMC SAVANA 2500 2013-2020 V8 6.0 .030"/0.8mm
    .040"/1.0mm
    CNG
    FLEX
    OE Style
    GMC SAVANA 3500 2013-2017 V8 4.8 .040"/1.0mm
    OE Style
    GMC SAVANA 3500 2013-2020 V8 6.0 .030"/0.8mm
    .040"/1.0mm
    CNG
    FLEX
    OE Style
    GMC SAVANA 4500 2013-2019 V8 6.0 .030"/0.8mm
    .040"/1.0mm
    CNG
    FLEX
    GAS
    OE Style
    GMC SIERRA 1500 2013 V8 4.8 .040"/1.0mm
    OE Style
    GMC SIERRA 1500 2013 V8 5.3 .040"/1.0mm
    OE Style
    GMC SIERRA 1500 2013 V8 6.0 .040"/1.0mm
    OE Style
    GMC SIERRA 1500 2013 V8 6.2 .040"/1.0mm
    OE Style
    GMC SIERRA 2500 HD 2013-2019 V8 6.0 .030"/0.8mm
    .040"/1.0mm
    CNG
    FLEX; GAS
    OE Style
    GMC SIERRA 3500 HD 2013-2019 V8 6.0 .040"/1.0mm
    OE Style
    GMC YUKON 2013-2014 V8 5.3 .040"/1.0mm
    OE Style
    GMC YUKON 2013 V8 6.0 .040"/1.0mm
    OE Style
    GMC YUKON 2013-2014 V8 6.2 .040"/1.0mm
    OE Style
    GMC YUKON XL 1500 2013-2014 V8 5.3 .040"/1.0mm
    OE Style
    GMC YUKON XL 1500 2013-2014 V8 6.2 .040"/1.0mm
    OE Style
    GMC YUKON XL 2500 2013 V8 6.0 .040"/1.0mm
    OE Style
    OLDSMOBILE CUTLASS SUPREME 1991-1995 V6 3.4 .045"/1.1mm
    PONTIAC G8 2009 V8 6.2 .040"/1.0mm
    OE Style
    PONTIAC GRAND PRIX 1991-1995 V6 3.4 .045"/1.1mm
  • Competitor comparison
    Competitor Name
    Competitor Part#
    AC-DELCO 41-104
    AC-DELCO 41-110
    BOSCH HR8LII33U
    CHAMPION SPARK PLUG RS12WMPB4
    DENSO IT16
    DENSO IT16TT
    DENSO ZTJ16R10
    GENERAL MOTORS 12571165
    GENERAL MOTORS 12621258
    NGK IZTR5B11
    NGK TR5IX
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