NGK 4551 Spark Plug (Standard Nickel)

NGK Spark Plugs

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MSRP: $4.49
$2.19
(You save $2.30 )
SKU:
NGK-BR9HS-10
UPC:
087295145517
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Product Overview

NGK Standard Nickel Plug 4551

Keep your Yamaha outboard purring like a kitten with the NGK Standard Nickel Plug 4551 (BR9HS-10). This reliable spark plug is engineered for long-lasting performance and optimal ignition, ensuring smooth starts and efficient fuel combustion. Built with durable nickel construction and corrosion-resistant plating, this plug stands up to the harsh marine environment, delivering dependable power when you need it most. Upgrade your ignition system today and experience the difference a quality spark plug makes.

Key Features

  • **Reliable Performance:** Provides consistent ignition for smooth starts and efficient fuel combustion.
  • **Durable Nickel Construction:** Built to withstand the demanding marine environment and resist wear.
  • **Corrosion-Resistant Plating:** Ensures easy installation and removal, even after prolonged exposure to saltwater.
  • **Superior Heat Dissipation:** The copper core efficiently removes heat, extending the plug's lifespan.
  • **Optimal Heat Range:** Heat range '9' provides versatile performance across various operating conditions.
  • **5k Ohm Resistor:** Suppresses radio frequency interference for clean, reliable electrical signals.
  • **Removable Nut Terminal:** Offers flexibility for various wiring connections.
  • **OEM Standard:** Engineered to meet or exceed Yamaha's original equipment specifications.

What's in the Box

  • 1 x NGK Standard Nickel Plug 4551 (BR9HS-10)

Specifications

Shell Thread Diameter14mm
Thread Pitch1.25mm
Seat TypeGasket
Reach12.7mm (1/2")
Hex Size13/16" (21mm)
Terminal TypeRemovable Nut
Overall HeightISO
Gap.039" (1.0mm)
Center Electrode MaterialNickel
TypeStandard
Size2.5mm
ProjectionNon-Projected
Ground Electrode MaterialNickel
Quantity1
ResistorYes
Resistor Value5k Ohm
Heat Range9
Torque SpecsCast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
BrandNGK/NTK
Longevity30k Miles

The Captain's Take

I've been relying on NGK spark plugs in my charter boat for years, and the 4551 is a staple. They offer the reliable performance I need to keep my engines running smoothly, even during long days out on the water. The corrosion resistance is a huge plus, considering the constant saltwater spray. For a dependable spark plug that won't let you down, choose NGK.

Warranty Information

60 Days

Reviews

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