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NGK 3961 BR8ES Solid Copper Core Spark Plug, 4-Pack

(KTM 250 SX 2023-24, 300 XC 2023-24, 250 XC 2023-24, 300 SX 2023-24; Polaris 500 1997-2006, 500 EFI 1995-97, Scrambler 400 4x4 1995-2002 + 146 more models)

Manufacturer

Picture for manufacturer NGK Spark Plugs

Part Number

3961
7 reviews
Sale Price

$4.24

In Stock (10+)

delivery box

Usually delivered within 2 days

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Product Details

The NGK 3961 BR8ES spark plug is a standard copper core spark plug designed for automotive, motorcycle and marine engines. NGK's solid copper core and electrode design help deliver fast starts, strong performance and long service life. It is sold as a pack of 4.

Key Features:

  • Triple gasket sealing process prevents gas leakage past the shell
  • 99% pure alumina silicate insulator
  • Solid copper core for dependable heat conduction
  • Corrugated insulator ribs help prevent flashover
  • Cold-rolled threads help protect the cylinder head threads from damage
  • Trivalent plating of silver chromate and zinc for corrosion resistance

NGK standard plugs are chosen by more engine manufacturers than any other brand. The BR8ES (stock no. 3961) is a dependable replacement choice for reliable ignition.

Products specifications

Fits

KTM 250 SX 2023-24, 300 XC 2023-24, 250 XC 2023-24, 300 SX 2023-24; Polaris 500 1997-2006, 500 EFI 1995-97, Scrambler 400 4x4 1995-2002, Trail Touring 1996-99, 500 Carb SKS 1996, 500 Classic 1999-2002, 2004-06, 500 RMK 1997-2001 + 142 more models

Stock Number

3961

Part Number

BR8ES SOLID

Electrical Terminal Type

Non-Removable Nut

Manufacturer Heat Range

8

Ground Electrode Core Material

Nickel

Hex Size

13/16

Seat Type

FLAT

Center Electrode Tip Material

Nickel

Ground Electrode Quantity

1

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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