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Home / 1 Pack Denso 3412 Iridium Long Life Spark Plug SK16PR-E11

1 Pack Denso 3412 Iridium Long Life Spark Plug SK16PR-E11

$27.77

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The Denso 3412 Iridium Long Life Spark Plug (SK16PR-E11) is designed to provide superior ignition, enhanced fuel efficiency, and long-lasting engine performance. Featuring an iridium center electrode, it ensures consistent spark, reduced wear, and optimal combustion. Ideal for high-performance and modern engines, the SK16PR-E11 delivers reliable starts, smoother engine operation, and extended service intervals, making it the perfect choice for a variety of vehicles and applications.

Features & Benefits:

🔧 Iridium center electrode ensures long-lasting spark and reduced wear
🔧 Improves combustion efficiency for better engine performance
🔧 Enhances fuel economy and reduces emissions
🔧 Pre-gapped for quick and easy installation

Specifications:

Brand & Part Number: Denso 3412 (SK16PR-E11)
Material: Iridium Tip, Copper Core
Thread Size: 14mm
Reach: 0.75 in. (19mm)
Gap: Pre-gapped (~0.040 in.)

Boost engine performance and fuel efficiency with Denso 3412 Iridium Long Life 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.