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Overview
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Vehicle Symptoms
- Rough idle at stoplights
- Engine misfire under load
- Hesitation during acceleration
- Decreased fuel economy
- Hard starting in cold weather
Diagnostic Codes
- P0300 – Random/Multiple Cylinder Misfire Detected
- P0301 – Cylinder 1 Misfire Detected
- P0302 – Cylinder 2 Misfire Detected
- P0303 – Cylinder 3 Misfire Detected
- P0304 – Cylinder 4 Misfire Detected
- P0305 – Cylinder 5 Misfire Detected
- P0306 – Cylinder 6 Misfire Detected
- P0307 – Cylinder 7 Misfire Detected
- P0308 – Cylinder 8 Misfire Detected
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 | DENSO |
| Part Number | IK16TT |
| Category | Ignitions and Electrical |
Videos
Introducing the New DENSO Iridium TT Spark Plug
DENSO Iridium Spark Plugs
Denso Iridium TT Spark Plug 60K Review
DENSO Iridium TT Spark Plug installation video
DENSO Spark Plugs Genuine vs Fake
Denso Spark Plug Comparo - Iridium vs Iridium Twin Tip
NGK Laser Platinum vs Denso Iridium TT - COLD Start Test
DENSO Iridium TT Spark Plugs
Denso Spark Plug Comparo - Nickel Twin Tip vs Iridium Twin Tip
SPARK PLUG BATTLE: NGK IR LASER IRIDIUM VS DENSO IRIDIUM TT
NGK Ruthenium vs Denso T T
Counterfeit Denso spark plugs eBay and Amazon NGK
About MOTORMIA
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Returns & Fitment
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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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
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