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1 Spark Plug - Iridium IX NGK 6509 LTR6IX-11 - Picture 1 of 1

Spark Plug-Iridium IX NGK 6509

4.7837 product ratings
IRC Part Solution (5001)
99.5% positive feedback
Price:
$7.89
Free shipping
Estimated delivery Thu, Aug 21 - Mon, Aug 25
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Condition:
New
One new genuine NGK spark plug.

About this product

Product Identifiers

BrandNGK
Manufacturer Part Number6509
eBay Product ID (ePID)114953505

Product Key Features

California Prop 65 WarningNickel

Additional Product Features

NotesDescription--Iridium IX Spark Plug
Sub TypeSpark Plug
Part TypeSecondary Ignition

All listings for this product

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New
1 Spark Plug - Iridium IX NGK 6509 LTR6IX-11
item 1 1 Spark Plug - Iridium IX NGK 6509 LTR6IX-11
$7.89
Free shipping
NGK Spark Plug (Iridium IX) (6509) LTR6IX-11
item 2 NGK Spark Plug (Iridium IX) (6509) LTR6IX-11
$7.95
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item 3 NGK Spark Plug (Iridium IX) (6509) LTR6IX-11
$7.95
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Spark Plug-Iridium IX NGK 6509
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NGK IRIDIUM IX SPARK PLUGS 6509-LTR6IX-11 Fits Ford Cadillac Mazda Chevrolet..
item 5 NGK IRIDIUM IX SPARK PLUGS 6509-LTR6IX-11 Fits Ford Cadillac Mazda Chevrolet..
$6.00
+$5.00 shipping
Iridium Spark Plug NGK 6509
item 6 Iridium Spark Plug NGK 6509
$12.39
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item 7 Spark Plug-Iridium IX NGK 6509
$12.48
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item 8 Spark Plug-Iridium IX NGK 6509
$5.64
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$12.83
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item 10 Iridium Spark Plug NGK 6509
$13.67
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item 11 NGK Spark Plug 6509; Iridium IX LTR6IX-11 14.00mm 25.00mm Tapered EACH
$13.72
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NGK SPARK PLUGS 6509 LTR6IX-11 Spark Plugs For Colder version of LTR5IX-11
item 12 NGK SPARK PLUGS 6509 LTR6IX-11 Spark Plugs For Colder version of LTR5IX-11
$14.23
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Iridium Spark Plug NGK 6509
item 13 Iridium Spark Plug NGK 6509
$14.27
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NGK SPARK PLUGS 6509 LTR6IX-11 Spark Plugs For Colder version of LTR5IX-11
item 14 NGK SPARK PLUGS 6509 LTR6IX-11 Spark Plugs For Colder version of LTR5IX-11
$14.38
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Iridium Spark Plug NGK 6509
item 15 Iridium Spark Plug NGK 6509
$14.49
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NGK Iridium IX Spark Plug Hex Size 5/8'' Thread Size 14mm 6509 LTR6IX-11 Single
item 16 NGK Iridium IX Spark Plug Hex Size 5/8'' Thread Size 14mm 6509 LTR6IX-11 Single
$14.61
Free shipping
1 Pack NGK Iridium IX 6509 Spark Plugs LTR6IX-11
item 17 1 Pack NGK Iridium IX 6509 Spark Plugs LTR6IX-11
$14.77
Free shipping
NGK SPARK PLUGS 6509 LTR6IX-11 Spark Plugs For Colder version of LTR5IX-11
item 18 NGK SPARK PLUGS 6509 LTR6IX-11 Spark Plugs For Colder version of LTR5IX-11
$14.78
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item 19 Ngk Spark Plug P N 6509
$15.24
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Iridium Spark Plug NGK 6509
item 20 Iridium Spark Plug NGK 6509
$15.25
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Spark Plug-Iridium IX NGK 6509
item 21 Spark Plug-Iridium IX NGK 6509
$15.48
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2 pc NGK 6509 LTR6IX-11 Iridium IX Spark Plugs for XP5863 XP5363 XP5263 nv
item 22 2 pc NGK 6509 LTR6IX-11 Iridium IX Spark Plugs for XP5863 XP5363 XP5263 nv
$16.00
Free shipping
Spark Plug-Iridium IX NGK 6509
item 23 Spark Plug-Iridium IX NGK 6509
$16.04
Free shipping
Spark Plug-Iridium IX NGK 6509
item 24 Spark Plug-Iridium IX NGK 6509
$9.99
+$6.30 shipping
Spark Plug-Iridium IX NGK 6509
item 25 Spark Plug-Iridium IX NGK 6509
$9.99
+$6.30 shipping
Spark Plug-Iridium IX NGK 6509
item 26 Spark Plug-Iridium IX NGK 6509
$9.99
+$6.30 shipping
Spark Plug-Iridium IX NGK 6509
item 27 Spark Plug-Iridium IX NGK 6509
$16.62
Free shipping
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item 28 Iridium Spark Plug NGK 6509
$16.62
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One New NGK Iridium Resistor Spark Plug 6509 for Buick & more
item 29 One New NGK Iridium Resistor Spark Plug 6509 for Buick & more
$17.50
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Spark Plug-Iridium IX NGK 6509
item 30 Spark Plug-Iridium IX NGK 6509
$17.50
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Spark Plug-Iridium IX NGK 6509
item 31 Spark Plug-Iridium IX NGK 6509
$17.74
Free shipping
Iridium Spark Plug NGK 6509
item 32 Iridium Spark Plug NGK 6509
$17.97
Free shipping
Iridium Spark Plug NGK 6509
item 33 Iridium Spark Plug NGK 6509
$18.62
Free shipping
Iridium Spark Plug NGK 6509
item 34 Iridium Spark Plug NGK 6509
$19.06
Free shipping
Spark Plug-Iridium IX NGK 6509
item 35 Spark Plug-Iridium IX NGK 6509
$19.36
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Iridium Spark Plug NGK 6509
item 36 Iridium Spark Plug NGK 6509
$19.36
Free shipping
Iridium Spark Plug NGK 6509
item 37 Iridium Spark Plug NGK 6509
$19.77
Free shipping
Iridium IX Spark Plug for F-150, F-250 Super Duty, F-350 Super Duty+More 6509
item 38 Iridium IX Spark Plug for F-150, F-250 Super Duty, F-350 Super Duty+More 6509
$20.54
Free shipping
(QTY 4) NGK LTR6IX-11 6509 Iridium IX Spark Plugs 2006-14 Mazda MX-5 Miata 2.0L
item 39 (QTY 4) NGK LTR6IX-11 6509 Iridium IX Spark Plugs 2006-14 Mazda MX-5 Miata 2.0L
$20.69
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Spark Plug-Iridium IX NGK 6509
item 40 Spark Plug-Iridium IX NGK 6509
$20.80
Free shipping
Iridium Spark Plug NGK 6509
item 41 Iridium Spark Plug NGK 6509
$20.91
Free shipping
2 pc NGK 6509 LTR6IX-11 Iridium IX Spark Plugs for XP5863 XP5363 XP5263 nv
item 42 2 pc NGK 6509 LTR6IX-11 Iridium IX Spark Plugs for XP5863 XP5363 XP5263 nv
$21.46
Free shipping
Spark Plug-Iridium IX NGK 6509
item 43 Spark Plug-Iridium IX NGK 6509
$21.57
Free shipping
NGK Set of 4 Iridium IX Spark Plugs 1.1mm Gap 6509 for Ford Mazda
item 44 NGK Set of 4 Iridium IX Spark Plugs 1.1mm Gap 6509 for Ford Mazda
$21.59
Free shipping
Set Of 4 Spark Plugs 6509 NGK Iridium IX 2006-2014 Mazda MX-5 Miata 2.0L
item 45 Set Of 4 Spark Plugs 6509 NGK Iridium IX 2006-2014 Mazda MX-5 Miata 2.0L
$21.95
Free shipping
NEW 6PCS OEM Iridium IX Spark Plugs NGK #6509 LTR6IX-11 For 11-15 Ford 5.0L
item 46 NEW 6PCS OEM Iridium IX Spark Plugs NGK #6509 LTR6IX-11 For 11-15 Ford 5.0L
$21.99
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NGK 6509 - Iridium IX™ Spark Plug
item 47 NGK 6509 - Iridium IX™ Spark Plug
$22.28
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item 48 Spark Plug-Iridium IX NGK 6509
$22.70
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item 49 NGK Iridium IX Spark Plug (LTR6IX-11) 6509
$22.95
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item 50 NGK Spark Plugs 6509
$23.76
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4 X New NGK IRIDIUM IX Resistor Performance Power Spark Plugs LTR6IX11 # 6509
item 51 4 X New NGK IRIDIUM IX Resistor Performance Power Spark Plugs LTR6IX11 # 6509
$23.99
Free shipping
4 Pack Spark Plugs NGK Iridium IX 2006-2014 Mazda MX-5 Miata 2.0L L4 Kit Set
item 52 4 Pack Spark Plugs NGK Iridium IX 2006-2014 Mazda MX-5 Miata 2.0L L4 Kit Set
$23.99
Free shipping
OEM 6 Pack NGK Iridium IX Spark Plugs 6509 LTR6IX-11 Fits 11-15 Ford Mustang
item 53 OEM 6 Pack NGK Iridium IX Spark Plugs 6509 LTR6IX-11 Fits 11-15 Ford Mustang
$23.99
Free shipping
4 pcs Spark Plugs NGK Iridium IX 2006-2014 Mazda MX-5 Miata 2.0L L4 Kit Set
item 54 4 pcs Spark Plugs NGK Iridium IX 2006-2014 Mazda MX-5 Miata 2.0L L4 Kit Set
$23.99
Free shipping
OEM 6 Pack NGK Iridium IX Spark Plugs 6509 LTR6IX-11 Fits 11-15 Ford Mustang
item 55 OEM 6 Pack NGK Iridium IX Spark Plugs 6509 LTR6IX-11 Fits 11-15 Ford Mustang
$23.99
Free shipping
6PCS OEM NGK #6509 LTR6IX-11 Iridium IX Spark Plugs For Ford Cadillac Chevrolet
item 56 6PCS OEM NGK #6509 LTR6IX-11 Iridium IX Spark Plugs For Ford Cadillac Chevrolet
$23.99
Free shipping
For Ford F-150 2010-2021 NGK 6509 Iridium IX Spark Plug
item 57 For Ford F-150 2010-2021 NGK 6509 Iridium IX Spark Plug
$25.15
Free shipping
Ngk Spark Plugs 6509 Ngk Iridium Ix Spark Plug
item 58 Ngk Spark Plugs 6509 Ngk Iridium Ix Spark Plug
$25.91
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8P Genuine OEM Iridium IX Spark Plugs NGK #6509 LTR6IX-11 For 11-15 Ford 5.0L
item 59 8P Genuine OEM Iridium IX Spark Plugs NGK #6509 LTR6IX-11 For 11-15 Ford 5.0L
$25.99
Free shipping
listings for this product

Ratings and Reviews

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4.8
37 product ratings
  • 34 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 1 users rated this 2 out of 5 stars
  • 1 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 31 reviews
  • by 5dollar5star
    Aug 02, 2025Top favorable review

    Arrived on time with a gift of 4 extra p...

    Arrived on time with a gift of 4 extra pieces. I installed them and they work great. Thank you to this wonderful store.

    Verified purchase: YesCondition: New

  • by rutri-jo-eqivb2qe
    Mar 24, 2020Top critical review

    Horrible

    No. They were put on my truck Sunday and I drove 70 miles for vacation and the truck mis fired the whole way. My mechanic had to come with new spark plugs of a different brand.

    Verified purchase: YesCondition: New

  • by izombie_50
    Jul 01, 2025

    These plugs came factory sealed and new ...

    These plugs came factory sealed and new as described. Worked perfect in my V6 Camaro!

    Verified purchase: YesCondition: New

  • by townsendtre2012
    Sep 10, 2019

    Great spark plus!!!!!! Worth the money

    I installed them in my Cadillac CTS Performance 3.6l coupe. I can honestly say that there Performance and combustion is great

    Verified purchase: YesCondition: New

  • by forme11
    Apr 07, 2021

    Great product

    I get great gas mileage, and the car runs great

    Verified purchase: YesCondition: New

  • by altheman741
    Jan 04, 2022

    fix my missing

    best spark plugs for my 2016 gmc canyon i ever Purchased i would everyone to have set

    Verified purchase: YesCondition: New

  • by war_071
    Jul 08, 2025

    Great spark plugs and a great price👍

    Great spark plugs and a great price👍

    Verified purchase: YesCondition: New

  • by 496zeeee
    Nov 23, 2020

    NGK plugs

    NGK spark plugs are always a good choice.

    Verified purchase: YesCondition: New

  • by bscottjr705
    Jan 08, 2020

    NGK Part

    Original Part A+++++

    Verified purchase: YesCondition: New

  • by ezaa_43
    Jun 16, 2025

    Good quality spark plugs at a great pric...

    Good quality spark plugs at a great price!

    Verified purchase: YesCondition: New

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