NGK Spark Plugs 6509 product image 1
NGK Spark Plugs 6509 product image 2
NGK Spark Plugs 6509 product image 3
NGK Spark Plugs 6509 product image 4
NGK Spark Plugs 6509 product image 5
NGK Spark Plugs 6509 product image 6
NGK Spark Plugs 6509 product image 7
NGK Spark Plugs 6509 product image 8

Authorized Dealer

NGK Spark Plug LTR6IX-11 OE Replacement 6509

SKU: 6509

$9.21

NGK Spark Plug LTR6IX-11 OE Replacement 6509

Fine Iridium Tip Ensures High Durability And A Consistently Stable Spark
NGK Spark Plug LTR6IX-11 OE Replacement 6509

Iridium Alloy Has Extremely High Melting Point, Perfect For Todays High Tech, High Performance Engines
NGK Spark Plug LTR6IX-11 OE Replacement 6509

Outstanding Acceleration, High Fuel Efficiency And Durability
NGK Spark Plug LTR6IX-11 OE Replacement 6509

Ultimate Design, Technology And Performance
NGK Spark Plug LTR6IX-11 OE Replacement 6509

Offers Extreme Ignitability, Improved Throttle Response And Superior Anti Fouling
Out of stock

Shipping & Returns

Shipping

Most in-stock products ship within 1-3 business days. Your available shipping method and final shipping cost will be shown at checkout. Qualifying standard-shipping orders of $150 or more ship free, while larger items may require oversized or freight delivery.

For more information, view our Shipping Policy.

Returns

Changed your mind? Most products can be returned within 30 days of delivery as long as they are unused, uninstalled, and in their original condition.

Contact us to start a return, and we’ll guide you through the next steps.

For complete details, view our Returns & Refunds Policy.

Warranty

Available warranty coverage is provided by the manufacturer and varies by brand and product. Modridge assists customers with eligible warranty claims and helps coordinate the review process with the manufacturer.

Contact us before returning, repairing, modifying, or discarding a product that may be defective. Order information, photographs, installation details, and diagnostic information may be required.

For coverage details and claim instructions, review our Warranty Policy.
  • Visa
  • Mastercard
  • Diners Club
  • PayPal
  • American Express
NGK Spark Plug LTR6IX-11 OE Replacement 6509

$9.21

$9.21

0.551 Inch

Thread Size (IN)

Taper Cut

Electrode Type

Iridium

Electrode Core Material

Product Description

NGK IX Iridium Series plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high tech, high performance engines.


More Features

  • Fine Iridium Tip Ensures High Durability And A Consistently Stable Spark
  • No Supplier Warranty

Specifications

Resistor
Yes
Electrode Type
Taper Cut
Electrode Core Material
Iridium
Electrode Tip Material
Nickel
Insulator Type
Projected
Thread Size (IN)
0.551 Inch
Quantity
Single
Reach
0.984 Inch
Seat Type
Tapered
Wrench Diameter
5/8 Inch

Fitment / Application

2004-2006 Buick Rendezvous V6; 3.6L/3564; GAS; MFI
2004, 2006-2007 Cadillac CTS V6; 3.6L/3564; GAS; MFI
2004-2009 Cadillac SRX V6; 3.6L/3564; GAS; MFI
2005-2008 Buick LaCrosse V6; 3.6L/3564; GAS; MFI
2005-2007 Cadillac CTS V6; 2.8L/2792; GAS; MFI
2005-2007 Cadillac STS V6; 3.6L/3564; GAS; MFI
2006-2007 Mazda 6 L4; 2.3L/2260; GAS; MFI; DISI; Turbocharged
2006-2015 Mazda MX-5 Miata L4; 2.0L/2000; GAS; MFI
2007-2008 GMC Acadia V6; 3.6L/3564; GAS; MFI
2007-2008 Mazda 3 L4; 2.3L/2260; GAS; MFI; DISI; Turbocharged
2007-2008 Mazda CX-7 L4; 2.3L/2260; GAS; Turbocharged; MFI
2007 Mazda CX-9 V6; 3.5L/3496; GAS; MFI
2007-2009 Pontiac G6 V6; 3.6L/3564; GAS; MFI
2007 Pontiac Solstice L4; 2.0L/1998; GAS; Turbocharged; MFI
2007-2009 Saturn Aura V6; 3.6L/3564; GAS; MFI
2007-2008 Saturn Outlook V6; 3.6L/3564; GAS; MFI
2007-2009 Suzuki XL-7 V6; 3.6L/3564; GAS; MFI
2008 Buick Enclave V6; 3.6L/3564; GAS; MFI
2008-2009 Cadillac CTS V6; 3.6L/3564; GAS; MFI; SFI
2008-2009 Cadillac CTS V6; 3.6L/3564; GAS; DI; SIDI
2008-2011 Cadillac STS V6; 3.6L/3564; GAS; DI
2008-2009 Chevrolet Equinox V6; 3.6L/3564; GAS; MFI
2008-2012 Chevrolet Malibu V6; 3.6L/3564; GAS; MFI
2008-2015 Mazda CX-9 V6; 3.7L/3726; GAS; MFI; VIN V
2008-2015 Mazda CX-9 V6; 3.7L/3726; GAS; MFI; VIN A
2008-2009 Pontiac G8 V6; 3.6L/3564; GAS; MFI
2008-2009 Pontiac Torrent V6; 3.6L/3564; GAS; MFI
2008-2010 Saturn Vue V6; 3.6L/3564; GAS; MFI
2009-2021 Buick Enclave V6; 3.6L/3564; GAS; DI
2009-2021 Chevrolet Traverse V6; 3.6L/3564; GAS; DI
2009-2016 GMC Acadia V6; 3.6L/3564; GAS; DI
2009 Mazda 3 L4; 2.3L/2260; GAS; MFI; DISI; Turbocharged; VIN M
2009 Mazda 3 L4; 2.3L/2260; GAS; MFI; DISI; Turbocharged; VIN L
2009-2013 Mazda 6 V6; 3.7L/3726; GAS; MFI
2009 Mazda CX-7 L4; 2.3L/2260; GAS; MFI; Turbocharged; VIN L
2009 Mazda CX-7 L4; 2.3L/2260; GAS; MFI; Turbocharged; VIN 3
2009-2010 Saturn Outlook V6; 3.6L/3564; GAS; DI
2009-2010 Suzuki Grand Vitara V6; 3.2L/3195; GAS; MFI
2010 Buick LaCrosse V6; 3.0L/182; GAS; DI
2010-2011, 2016 Buick LaCrosse V6; 3.6L/3564; GAS; DI
2010-2012 Cadillac CTS V6; 3.6L/3564; GAS; DI
2010-2014 Cadillac CTS V6; 3.0L/182; GAS; DI
2010-2011 Cadillac SRX V6; 2.8L/2792; GAS; Turbocharged; MFI
2010-2011 Cadillac SRX V6; 3.0L/182; GAS; DI
2010-2015 Chevrolet Camaro V6; 3.6L/3564; GAS; DI
2010, 2012 Chevrolet Equinox V6; 3.0L/182; GAS; DI
2010-2014 Ford F-150 V8; 6.2L/6210; GAS; MFI
2010, 2012 GMC Terrain V6; 3.0L/182; GAS; DI
2011-2012 Chevrolet Equinox V6; 3.0L/182; FLEX/GAS; DI
2011-2014 Ford Edge V6; 3.7L/3726; GAS; MFI
2011-2012 Ford Explorer V6; 3.5L/3496; GAS; MFI
2011-2019 Ford F-250 Super Duty V8; 6.2L/6210; FLEX/GAS; MFI
2011-2019 Ford F-350 Super Duty V8; 6.2L/6210; FLEX/GAS; MFI
2011-2013 Ford Fiesta L4; 1.6L/1596; GAS; MFI
2011, 2014-2017 Ford Mustang V8; 5.0L/4951; GAS; MFI
2011-2017 Ford Mustang V6; 3.7L/3726; GAS; MFI
2011-2012 GMC Terrain V6; 3.0L/182; FLEX/GAS; DI
2011-2018 Lincoln MKX V6; 3.7L/3726; GAS; MFI
2011 Saab 9-4X V6; 3.0L/182; GAS; DI
2012-2016 Buick LaCrosse V6; 3.6L/3564; FLEX/GAS; DI
2012-2015 Cadillac SRX V6; 3.6L/3564; FLEX/GAS; DI
2012-2017 Chevrolet Caprice V6; 3.6L/3564; FLEX/GAS; DI
2012 Chevrolet Captiva Sport V6; 3.0L/182; FLEX/GAS; DI
2012-2014, 2017-2020 Chevrolet Impala V6; 3.6L/3564; GAS; DI; SIDI
2012-2018 Ford Edge V6; 3.5L/3496; GAS; MFI
2012-2014 Ford F-150 V6; 3.7L/3726; FLEX/GAS; MFI
2012 Ford F-150 V6; 3.5L/3496; GAS; Turbocharged; DI
2012-2017 Ford F-150 V8; 5.0L/4951; FLEX/GAS; MFI
2012-2013 Ford Flex V6; 3.5L/3496; GAS; MFI; Turbocharged; EcoBoost
2012 Ford Focus L4; 2.0L/1999; FLEX/GAS; DI; Duratec
2012 Ford Focus L4; 2.0L/1999; GAS; DI; PZEV
2012-2013 Ford Mustang V8; 5.0L/4951; GAS; MFI; 99F ENG.
2012-2013 Ford Mustang V8; 5.0L/4951; GAS; MFI; 99U ENG.
2012-2014 Ford Taurus V6; 3.5L/3496; GAS; DI; Turbocharged; EcoBoost
2012-2013 Land Rover Range Rover Evoque L4; 2.0L/1999; GAS; Turbocharged; MFI
2012 Lincoln MKS V6; 3.5L/3496; GAS; Turbocharged; MFI
2012 Lincoln MKT V6; 3.5L/3496; GAS; Turbocharged; MFI
2013-2015 Cadillac ATS V6; 3.6L/3564; FLEX/GAS; DI
2013 Cadillac CTS V6; 3.6L/3564; FLEX/GAS; DI
2013 Cadillac XTS V6; 3.6L/3564; GAS; DI
2013-2017 Chevrolet Equinox V6; 3.6L/3564; GAS; DI
2013-2017 Chevrolet Equinox V6; 3.6L/3564; FLEX/GAS; DI
2013 Chevrolet Impala V6; 3.6L/3564; FLEX/GAS; DI
2013 Chevrolet Impala V6; 3.6L/3564; GAS; DI; SFI
2013-2017 Ford Explorer V6; 3.5L/3496; GAS; DI; Turbocharged; EcoBoost
2013-2019 Ford Explorer V6; 3.5L/3496; GAS; MFI; Duratec
2013-2018 Ford Focus L4; 2.0L/1999; GAS; DI; SFI; Turbocharged
2013-2017 Ford Focus L4; 2.0L/1999; GAS; DI; GDI
2013-2017 Ford Focus L4; 2.0L/1999; FLEX/GAS; DI
2013-2018 Ford Fusion L4; 2.0L/1999; GAS; DI; Turbocharged
2013-2014 Ford Police Interceptor Sedan V6; 3.5L/3496; GAS; MFI; Duratec
2013-2017 Ford Police Interceptor Sedan V6; 3.7L/3726; GAS; MFI
2013-2016 Ford Police Interceptor Utility V6; 3.7L/3726; GAS; MFI
2013-2017 GMC Terrain V6; 3.6L/3564; GAS; DI
2013-2015, 2017 GMC Terrain V6; 3.6L/3564; FLEX/GAS; DI
2013-2015 Jaguar XF L4; 2.0L/1999; GAS; Turbocharged; DI
2013 Land Rover LR2 L4; 2.0L/1999; GAS; Turbocharged; MFI
2013-2019 Lincoln MKT V6; 3.7L/3726; GAS; MFI
2013-2016 Lincoln MKZ V6; 3.7L/3726; GAS; MFI
2014-2015 Cadillac CTS V6; 3.6L/3564; FLEX/GAS; DI; LFX ENG.
2014-2019 Cadillac XTS V6; 3.6L/3564; GAS; DI; LFX ENG.
2014-2020 Chevrolet Impala V6; 3.6L/3564; FLEX/GAS; DI; SFI
2014-2016 Chevrolet Impala Limited V6; 3.6L/3564; FLEX/GAS; DI
2014 Ford Edge L4; 2.0L/1999; GAS; Turbocharged; MFI
2014 Ford F-150 V6; 3.7L/3726; CNG; MFI
2014 Ford F-150 V6; 3.7L/3726; LPG; MFI
2014-2015 Ford Fiesta L4; 1.6L/1596; GAS; DI; Turbocharged; EcoBoost
2014-2015 Ford Fiesta L4; 1.6L/1596; GAS; MFI; Ti-VCT
2014-2016 Ford Flex V6; 3.5L/3496; GAS; DI; Turbocharged; EcoBoost
2014-2015 Land Rover LR2 L4; 2.0L/1999; GAS; Turbocharged; DI
2014, 2016 Land Rover Range Rover Evoque L4; 2.0L/1999; GAS; Turbocharged; DI
2014-2016 Lincoln MKS V6; 3.7L/3726; GAS; MFI
2015-2016 Chevrolet Colorado V6; 3.6L/3564; GAS; DI
2015-2017 Ford Edge L4; 2.0L/1999; GAS; Turbocharged; DI
2015-2017 Ford F-150 V6; 3.5L/3496; FLEX/GAS; MFI; Duratec
2015-2019 Ford Mustang V8; 5.2L/5163; GAS; MFI
2015-2017 Ford Police Interceptor Sedan V6; 3.5L/3496; GAS; MFI
2015-2017 Ford Police Interceptor Sedan V6; 3.5L/3496; FLEX/GAS; MFI
2015-2019 Ford Police Interceptor Sedan V6; 3.7L/3726; FLEX/GAS; MFI
2015-2019 Ford Police Interceptor Utility V6; 3.7L/3726; FLEX/GAS; MFI
2015-2017 Ford Taurus V6; 3.5L/3496; GAS; DI; Turbocharged
2015-2019 Ford Transit-150 V6; 3.7L/3726; LPG; MFI
2015-2019 Ford Transit-150 V6; 3.7L/3726; FLEX/GAS; MFI
2015-2019 Ford Transit-150 V6; 3.7L/3726; CNG; MFI
2015-2019 Ford Transit-250 V6; 3.7L/3726; FLEX/GAS; MFI
2015-2019 Ford Transit-250 V6; 3.7L/3726; CNG; MFI
2015-2019 Ford Transit-250 V6; 3.7L/3726; LPG; MFI
2015-2019 Ford Transit-350 V6; 3.7L/3726; FLEX/GAS; MFI
2015-2019 Ford Transit-350 V6; 3.7L/3726; CNG; MFI
2015-2019 Ford Transit-350 V6; 3.7L/3726; LPG; MFI
2015-2019 Ford Transit-350 HD V6; 3.7L/3726; LPG; MFI
2015-2019 Ford Transit-350 HD V6; 3.7L/3726; FLEX/GAS; MFI
2015-2019 Ford Transit-350 HD V6; 3.7L/3726; CNG; MFI
2015-2016 GMC Canyon V6; 3.6L/3564; GAS; DI
2015-2016 Land Rover Discovery Sport L4; 2.0L/1999; GAS; Turbocharged; DI
2015 Land Rover Range Rover Evoque L4; 2.0L/1999; GAS; DI; Turbocharged; VIN H
2015 Land Rover Range Rover Evoque L4; 2.0L/1999; GAS; DI; Turbocharged; VIN G
2016 Cadillac SRX V6; 3.6L/3564; GAS; DI; SIDI
2016 Cadillac SRX V6; 3.6L/3564; FLEX/GAS; DI; SFI
2016-2018 Ford Focus L4; 2.3L/2300; GAS; Turbocharged; DI
2017-2020 Chevrolet Colorado V6; 3.6L/222; GAS; DI
2017 Chevrolet Impala V6; 3.6L/3564; BI-FUEL; SFI; PFI
2017-2019 Ford E-350 Super Duty V8; 6.2L/6210; FLEX/GAS; MFI
2017-2019 Ford Flex V6; 3.5L/3496; GAS; MFI; Duratec
2017 Ford Taurus V6; 3.5L/3496; GAS; MFI
2017 Ford Taurus L4; 2.0L/1999; GAS; Turbocharged; DI
2017 Ford Taurus V6; 3.5L/3496; FLEX/GAS; MFI
2017 GMC Acadia Limited V6; 3.6L/3564; GAS; DI
2017-2020 GMC Canyon V6; 3.6L/222; GAS; DI
2017 Jaguar XE L4; 2.0L/1999; GAS; DI; GTDI; Turbocharged
2017-2020 Lincoln Continental V6; 3.7L/3726; GAS; DI
2018-2020 Ford F-150 V6; 3.3L/3343; FLEX/GAS; Direct/Port Injection
2018 Ford Focus L4; 2.0L/1999; FLEX/GAS; DI; GDI
2018-2019 Ford Transit-150 V6; 3.7L/3726; GAS; MFI
2018-2019 Ford Transit-250 V6; 3.7L/3726; GAS; MFI
2018-2019 Ford Transit-350 V6; 3.7L/3726; GAS; MFI
2018-2019 Ford Transit-350 HD V6; 3.7L/3726; GAS; MFI
2018-2019 Jaguar XE L4; 2.0L/1997; GAS; Turbocharged; DI

Recently viewed products

Clear history

Learn Before You Upgrade

  • Will It Fit Your Vehicle?

    A clear, step-by-step guide to verifying vehicle details, fitment notes, and part numbers before you buy.

    Read the Fitment Guide

  • DIY or Professional Install?

    Know the tools, time, supporting parts, and follow-up work before the installation begins.

    Plan Your Installation

  • Build It Once. Build It Right.

    Learn how to plan compatible upgrades in the right order and avoid paying twice for the same result.

    Plan Your Build
Image alt
Image alt
Image alt