Home / Denso / 4 Pack Denso 3031 U-Groove Spark Plugs W16EXR-U
Denso
4 Pack Denso 3031 U-Groove Spark Plugs W16EXR-U
Part number 3031
$23.77
4-pack · $5.94 each · Free shipping
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The Denso 3031 U-Groove Spark Plug (W16EXR-U) is designed to provide superior ignition performance, enhanced fuel efficiency, and long-lasting engine durability. Featuring a U-Groove electrode design, it ensures consistent spark, optimal combustion, and reduced wear. Ideal for modern engines, the W16EXR-U delivers reliable starts, smoother operation, and extended service intervals, making it the perfect choice for a variety of vehicles and applications.
Features & Benefits:
🔧 U-Groove electrode design ensures consistent and powerful spark
🔧 Improves combustion efficiency for better engine performance
🔧 Reduces wear and enhances fuel economy
🔧 Pre-gapped for quick and easy installation
Specifications:
Brand & Part Number: Denso 3031 (W16EXR-U)
Material: Nickel Alloy Electrode, Copper Core
Thread Size: 14mm
Reach: 0.75 in. (19mm)
Gap: Pre-gapped (~0.040 in.)
Enhance engine performance and fuel efficiency with Denso 3031 U-Groove Spark Plugs! 🔧
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At TXN Supply, we're driven by a passion for quality and reliability. Whether you're a DIY mechanic, an automotive professional, or just looking for top-notch essentials, we provide premium spark plugs, oil filters, fluids, and more from trusted brands like Champion, NGK, and ACDelco.
Our mission is simple: to deliver high-quality auto parts and everyday must-haves with fast shipping and great prices!
We offer fast, reliable shipping within the USA. Orders are processed quickly and shipped via trusted carriers. Tracking information will be provided. Expedited options may be available at an extra cost. Contact us for any shipping inquiries.
We offer a 30-day return period. Items must be in original condition. Buyer is responsible for return shipping unless the item is defective or incorrect. Refunds are processed once the item is received. Contact us for any return assistance.
Shipping Info
Free shipping on every US order. In-stock parts typically ship within 1 business day from Texas.
Returns
30-day returns on unused parts in original packaging. Wrong or defective items are replaced or refunded. See the return policy.
How do I confirm this part fits?
Match the brand and part number to your vehicle, or use the Parts Finder on the homepage. Contact us before ordering if you are unsure.
Are these parts new?
Yes. TXN Supply Co sells new parts from trusted OEM-quality brands — not remanufactured cores.
How fast will my order ship?
In-stock orders ship within 1 business day. Delivery time depends on your ZIP; most US addresses arrive in 2–5 business days.
What is your return policy?
Unused items can be returned within 30 days in original packaging. Customer-initiated returns may include a restocking fee and return shipping.
