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AUTOLITE PLATINUM


Platinum Spark Plug

AP5243

Product Description

Step up to platinum. A center wire platinum firing tip provides improved performance and durability*. They fire quicker and cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy versus standard plugs. Guaranteed for 4 years.**

Product Specs

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

Where to Buy

  • Applications where used
    Make
    Model
    Year
    Notes
    Gap
    CADILLAC CTS 2006-2007 V8 6.0L .050"/1.3mm
    CADILLAC CTS 2009-2015 V8 6.2L .040"/1.0mm
    CADILLAC ESCALADE 2011-2013 V8 6.0L .040"/1.0mm
    ELECTRIC/FLEX
    CADILLAC ESCALADE 2007-2016 V8 6.2L .040"/1.0mm
    CADILLAC ESCALADE ESV 2007-2016 V8 6.2L .040"/1.0mm
    CADILLAC ESCALADE EXT 2007-2013 V8 6.2L .040"/1.0mm
    CHEVROLET AVALANCHE 2013 V8 5.3L .040"/1.0mm
    CHEVROLET CAMARO 2010-2015 V8 6.2L .040"/1.0mm
    CHEVROLET CAPRICE 2013-2017 V8 6.0L .040"/1.0mm
    CHEVROLET CORVETTE 2008-2013 V8 6.2L .040"/1.0mm
    CHEVROLET CORVETTE 2006-2013 V8 7.0L .040"/1.0mm
    CHEVROLET EXPRESS 1500 2011-2014 V8 5.3L .040"/1.0mm
    CHEVROLET EXPRESS 2500 2013-2017 V8 4.8L .040"/1.0mm
    CHEVROLET EXPRESS 2500 2011-2019 V8 6.0L .040"/1.0mm
    CHEVROLET EXPRESS 3500 2011-2017 V8 4.8L .040"/1.0mm
    CHEVROLET EXPRESS 3500 2011-2019 V8 6.0L .040"/1.0mm
    CHEVROLET EXPRESS 4500 2009-2016 V8 6.0L .040"/1.0mm
    CHEVROLET IMPALA 2006-2009 V8 5.3L .040"/1.0mm
    CHEVROLET LUMINA 1991-1995 V6 3.4L .045"/1.1mm
    CHEVROLET MONTE CARLO 1995 V6 3.4L .045"/1.1mm
    CHEVROLET SILVERADO 1500 2011-2013 V8 4.8L .040"/1.0mm
    CHEVROLET SILVERADO 1500 2011-2013 V8 5.3L .040"/1.0mm
    CHEVROLET SILVERADO 1500 2011-2013 V8 6.0L .040"/1.0mm
    CHEVROLET SILVERADO 1500 2011-2013 V8 6.2L .040"/1.0mm
    CHEVROLET SILVERADO 2500 HD 2011-2019 V8 6.0L .040"/1.0mm
    CHEVROLET SILVERADO 3500 HD 2011-2019 V8 6.0L .040"/1.0mm
    CHEVROLET SS 2014-2017 V8 6.2L .040"/1.0mm
    CHEVROLET SSR 2003-2004 V8 5.3L .040"/1.0mm
    CHEVROLET SSR 2005-2006 V8 6.0L .040"/1.0mm
    CHEVROLET SUBURBAN 1500 2013-2014 V8 5.3L .040"/1.0mm
    CHEVROLET SUBURBAN 2500 2013 V8 6.0L .040"/1.0mm
    CHEVROLET SUBURBAN 3500 HD 2016-2018 V8 6.0L .040"/1.0mm
    CHEVROLET TAHOE 2011-2014 V8 5.3L .040"/1.0mm
    CHEVROLET TAHOE 2010-2013 V8 6.0L .040"/1.0mm
    GMC SAVANA 1500 2013-2014 V8 5.3L .040"/1.0mm
    GMC SAVANA 2500 2013-2017 V8 4.8L .040"/1.0mm
    GMC SAVANA 2500 2013-2019 V8 6.0L .030"/0.8mm
    .040"/1.0mm
    CNG
    FLEX
    GMC SAVANA 3500 2013-2017 V8 4.8L .040"/1.0mm
    GMC SAVANA 3500 2013-2019 V8 6.0L .030"/0.8mm
    .040"/1.0mm
    CNG
    FLEX
    GMC SAVANA 4500 2013-2015 V8 6.0L .030"/0.8mm
    .040"/1.0mm
    CNG
    FLEX
    GMC SIERRA 1500 2013 V8 4.8L .040"/1.0mm
    GMC SIERRA 1500 2013 V8 5.3L .040"/1.0mm
    GMC SIERRA 1500 2013 V8 6.0L .040"/1.0mm
    GMC SIERRA 1500 2013 V8 6.2L .040"/1.0mm
    GMC SIERRA 2500 HD 2013-2019 V8 6.0L .030"/0.8mm
    .040"/1.0mm
    CNG
    FLEX; GAS
    GMC SIERRA 3500 HD 2013-2019 V8 6.0L .040"/1.0mm
    GMC YUKON 2013-2014 V8 5.3L .040"/1.0mm
    GMC YUKON 2013 V8 6.0L .040"/1.0mm
    GMC YUKON 2013-2014 V8 6.2L .040"/1.0mm
    GMC YUKON XL 1500 2013-2014 V8 5.3L .040"/1.0mm
    GMC YUKON XL 1500 2013-2014 V8 6.2L .040"/1.0mm
    GMC YUKON XL 2500 2013 V8 6.0L .040"/1.0mm
    OLDSMOBILE CUTLASS SUPREME 1991-1995 V6 3.4L .045"/1.1mm
    PONTIAC G8 2009 V8 6.2L .040"/1.0mm
    PONTIAC GRAND PRIX 1991-1995 V6 3.4L .045"/1.1mm
  • Competitor comparison
    Competitor Name
    Competitor Part#
    AC-DELCO R42LTSM
    BOSCH HR8LPP30U
    BOSCH HR8LPX
    BOSCH HR8LPX+ 
    MOTORCRAFT AGSF23C
    SPLITFIRE PP524C
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