Home / 8 Pack NGK V-Power 5820 Spark Plugs R5671A-10
8 Pack NGK V-Power 5820 Spark Plugs R5671A-10
$84.77
Free shipping on all orders.
Qty In Stock: 20
The NGK 5820 V-Power Spark Plug (R5671A-10) is designed for high-performance and racing engines requiring reliable ignition under extreme conditions. Featuring a fine-wire nickel electrode, solid copper core, and cold heat range, it delivers superior combustion, detonation resistance, and durability at high RPM—ideal for competition use.
Features & Benefits:
🔧 V-groove design enhances flame kernel growth and ignition
🔧 Copper core ensures maximum heat transfer and spark energy
🔧 Cold heat range supports high-compression, high-RPM engines
🔧 Non-resistor design for full spark efficiency in race applications
Specifications:
Brand & Part Number: NGK 5820 (R5671A-10)
Material: Nickel with Copper Core
Thread Size: 14mm
Reach: 19mm (0.75 in)
Hex Size: 5/8 in (16mm)
Heat Range: 10
Seat Type: Gasket
Resistor: No
Gap: 0.7mm (0.028 in)
Choose NGK R5671A-10 V-Power for race-proven ignition performance, extreme reliability, and consistent power in your high-performance 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.
