Moderate — 2–4 hours
Description
Part #: LTR7IX-11
Spark Plug - NGK Iridium IX - 14 mm Thread - 0.985 in Reach - Tapered Seat - Stock Number 6510 - Resistor - Each
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | NGK |
| Part Number | N003 LTR7IX-11 |
Videos
NGK 6510 LTR7IX-11 Iridium Spark Plug For MazdaSpeed 3 / Ford Focus ST, Mustang GT & BOSS
Focus ST/RS NGK Spark Plugs Iridium IX Set 2013-2018/2016-2018 Installation
Tech || Spark Plug Frequently Asked Questions - Terminator, GT500, and Boosted Coyote
Step Colder Spark Plug Install for Focus ST! (Important)
Spark Plug & Wire Install + Gapping Guide - 2016-2024 Camaro
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How to GAP your [Mazdaspeed 3] spark plugs
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NGK Spark Plugs @ SixityAuto.com
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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