Home / 2 Pack Denso 3381 U-Groove Spark Plugs K20HR-U11
2 Pack Denso 3381 U-Groove Spark Plugs K20HR-U11
$28.77
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The Denso 3381 U-Groove Spark Plug (K20HR-U11) is designed to provide reliable ignition, smooth engine operation, and enhanced combustion efficiency. Featuring a U-Groove electrode design, it ensures consistent spark, optimal heat dissipation, and reduced wear. Ideal for modern engines, the K20HR-U11 delivers reliable starts, smoother operation, and improved fuel economy, making it the perfect choice for a wide range 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 3381 (K20HR-U11)
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 3381 U-Groove Spark Plugs! 🔧
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.
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