Home / NGK 4551 Standard Spark Plug - BR9HS-10, 1 Pack
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NGK 4551 Standard Spark Plug - BR9HS-10, 1 Pack
$13.77
Free shipping on all orders.
Qty In Stock: 20
The NGK 4551 Spark Plug (BR9HS-10) is engineered for reliable ignition and performance in high-revving two-stroke engines. Featuring a solid copper core and nickel alloy electrode, it delivers excellent heat dissipation, fouling resistance, and consistent combustion—ideal for motorcycles, ATVs, snowmobiles, and other powersport applications.
Features & Benefits:
🔧 Copper core ensures strong spark and efficient thermal transfer
🔧 Nickel alloy electrode resists corrosion and wear
🔧 Pre-gapped at 1.0mm for accurate, easy installation
🔧 Designed for high-RPM two-stroke engine operation
Specifications:
Brand & Part Number: NGK 4551 (BR9HS-10)
Material: Nickel with Copper Core
Thread Size: 14mm
Reach: 12.7mm (0.5 in)
Hex Size: 13/16 in (20.8mm)
Heat Range: 9
Seat Type: Gasket
Resistor: Yes
Gap: 1.0mm (0.039 in)
Choose NGK BR9HS-10 for dependable starts, strong ignition, and long-lasting performance in your two-stroke 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.
