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Home / NGK 6596 V-Power Racing Plug Spark Plug R5671A-11 - 2 Pack

NGK 6596 V-Power Racing Plug Spark Plug R5671A-11 - 2 Pack

$26.77

Free shipping on all orders.

Qty In Stock: 20

The NGK 6596 V-Power Racing Spark Plug (R5671A-11) is engineered for extreme performance in high-compression, high-RPM engines. Featuring a fine-wire nickel alloy electrode and solid copper core, it delivers superior combustion efficiency, excellent heat dissipation, and detonation resistance—ideal for drag racing, circle track, and other motorsport applications.

Features & Benefits:

🔧 V-groove electrode promotes efficient flame propagation
🔧 Copper core ensures optimal heat transfer under extreme conditions
🔧 Cold heat range supports high-performance, high-boost engines
🔧 Non-resistor design maximizes spark energy for racing use

Specifications:

Brand & Part Number: NGK 6596 (R5671A-11)
Material: Nickel with Copper Core
Thread Size: 14mm
Reach: 19mm (0.75 in)
Hex Size: 5/8 in (16mm)
Heat Range: 11
Seat Type: Gasket
Resistor: No
Gap: 0.7mm (0.028 in)

Choose NGK R5671A-11 V-Power Racing Spark Plug for race-proven ignition performance, extreme reliability, and consistent power in your competition engine—order now!

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.