Spark Plug Triple-Electrode Ceramic & Nickel Alloy
High Quality
Free US Shipping
Hassle Free Returns
Engine starting issues resolved with triple-electrode design
Optimized combustion for improved engine response and fuel efficiency — with a triple-electrode layout, durable ceramic and nickel alloy materials, and reduced carbon deposits.
Why is this Spark Plug Three-Electrode Design perfect for you?
✔ Improved ignition power with triple electrodes: The three-electrode design provides multiple ignition paths and a focused spark, resulting in better engine response and more reliable starts. This feature leads to instant ignition, reducing startup delays even in cold weather conditions.
✔ Enhanced fuel efficiency: The enhanced combustion process reduces fuel waste, improving miles per gallon (mpg) and lowering operational costs. This more complete combustion also contributes to cleaner engine operation.
✔ Durable materials for extended lifespan: Constructed using high-quality ceramic and nickel alloy, the spark plug withstands extreme temperatures and reduces carbon deposits, which keeps the electrodes cleaner and maintains peak performance over a longer period.
Specifications
Model: D8TC
Material: Ceramic, nickel alloy
Overall length: 2.95 in
Thread diameter and length: 0.47 in diameter, 0.75 in thread length
Frequently asked questions
Quick answers about ordering from Couje. More detail on our full FAQ page.
How much does shipping cost, and how long does it take?
Shipping is free on every order — no minimum. Orders are typically delivered within 4–12 business days (processing included), and every order includes tracking. Full details are in our Shipping Policy.
What is your return policy?
You can return items within 30 days of delivery. Once your return is received and inspected, we process your refund to the original payment method. See our Return & Refund Policy for the full process.
How do I track my order?
As soon as your order ships, we email you a tracking number. You can follow your delivery at any time on our Track Your Order page.
How can I reach customer service?
Email us at support@couje.com or use our contact form. Our team is available Monday – Friday: 09:00 AM – 05:00 PM EST and replies within 24 hours. Saturday – Sunday: closed.