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NGK 1097 BR4ES Standard Nickel Spark Plug 14mm Thread 3/4in Reach

(1990-1994 Yamaha G8-A Fleet Classic; 1993-1994, 1996-2000 Yamaha G11-A Yamahauler; 1989 Yamaha G2-A; 1990-1992 Yamaha G5-A Sun Classic + 1 more model)

Manufacturer

Picture for manufacturer NGK Spark Plugs

Part Number

1097
9 reviews
Sale Price

$4.09

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The NGK 1097 (BR4ES) Standard Spark Plug is an OE-quality nickel alloy spark plug. It is built for reliable ignition performance in engines that use original-equipment nickel plugs. NGK is a leading original-equipment spark plug supplier, and this plug follows that standard design.

Key Features:

  • Solid copper core for heat dissipation, conductivity and a wide heat range
  • Nickel alloy center and ground electrodes for consistent performance
  • Alumina silicate ceramic insulator for strong dielectric performance and good heat transfer
  • Triple-gasket sealing to prevent combustion gas leakage
  • Trivalent metal plating for corrosion and anti-seizing protection, so the plug installs and removes easily
  • Corrugated insulator ribs to help prevent flashover
  • Built-in 5k ohm resistor to suppress radio frequency interference

Specifications:

  • NGK part number: 1097 (service number BR4ES)
  • Thread diameter: 14 mm
  • Thread pitch: 1.25 mm
  • Reach: 19 mm (3/4 in)
  • Hex size: 13/16 in (21 mm)
  • Seat type: Gasket
  • Terminal type: Removable nut
  • Heat range: 4
  • Pre-set gap: 0.032 in
  • Resistor: Yes, approximately 5k ohm
  • Electrode: Non-projected, 1 ground electrode
  • Torque: 18-25.3 lb-ft in cast iron heads, 18-21.6 lb-ft in aluminum heads

This plug is best suited to engines that use OE nickel alloy plugs. It is not recommended for engines that came with factory precious metal plugs. Replacing worn plugs can help with hard starting, misfires and reduced fuel efficiency.

Products specifications

Fits

1990-1994 Yamaha G8-A Fleet Classic; 1993-1994, 1996-2000 Yamaha G11-A Yamahauler; 1989 Yamaha G2-A; 1990-1992 Yamaha G5-A Sun Classic; 1991-1994 Yamaha G9-A Fleet Master

Stock Number

1097

Part Number

BR4ES

Manufacturer Heat Range

4

Ground Electrode Core Material

Nickel

Hex Size

13/16

Seat Type

FLAT

Center Electrode Tip Material

Nickel

Ground Electrode Quantity

1

Electrical Terminal Type

Removable Nut

Ground Configuration

Standard

Center Electrode Core Material

Copper

Ground Electrode Tip Design

Standard

Reach

.75

Insulator Height

55.00

Pre-Gap Size

.032

Thread Diameter

14.00

Resistance

5000

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