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Ignitions and Electrical› Ignition Components
NGK
NGK Spark Plug Stock # 5266
SKU: N003 IZFR6K-11S
Easy — 1–2 hours
Overview
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Vehicle Symptoms
- Engine misfire during acceleration
- Rough idle when stopped
- Poor fuel economy and hesitation
- Check engine light flashing under load
- Hard starting in cold weather
Diagnostic Codes
- P0300 – random misfire
- P0301 – cylinder 1 misfire
- P0302 – cylinder 2 misfire
- P0303 – cylinder 3 misfire
- P0304 – cylinder 4 misfire
Relevant Conversations
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | NGK |
| Part Number | N003 IZFR6K-11S |
Videos
NGK IZFR6K11: Tips to Check for Authentic Spark Plugs
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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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