Back to catalogue
Marine & Outboard Spark Plugs

NGK Nickel Spark Plug BP6HS-10 (6326)

SKU: GB-BP6HS-10

$8.80
Request a quote

The NGK BP6HS-10 (Stock No. 6326) is a non-resistor, projected-tip spark plug designed for selected small 2-stroke outboard motors. Featuring an M14 × 1.25 thread, 12.7 mm reach, heat range 6 and 1.0 mm nominal gap, it provides reliable ignition and efficient heat transfer.

Key benefits

Key Benefits

  • - Standard nickel spark plug
  • - Non-resistor construction
  • - Projected firing-end design
  • - Copper-core centre electrode
  • - NGK heat range 6
  • - 1.0 mm / 0.040" nominal gap
  • - Short 12.7 mm / 1/2" reach
  • - M14 × 1.25 thread
  • - Flat / gasket seat
  • - Designed for selected small 2-stroke outboards
  • - Verified Tohatsu and Mercury applications
  • - Direct replacement where BP6HS-10 is specified

Specifications & Dimensions

  • - Brand: NGK
  • - Part Number: BP6HS-10
  • - NGK Stock Number: 6326
  • - Spark Plug Type: Standard nickel
  • - Thread Diameter: 14.0 mm / 0.551"
  • - Thread Size: M14 × 1.25
  • - Thread Pitch: 1.25 mm / 0.049"
  • - Thread Reach: 12.7 mm / 0.500"
  • - Hex / Spanner Size: 20.8 mm / 13/16"
  • - Nominal Spark Gap: 1.0 mm / 0.040"
  • - NGK Heat Range: 6
  • - Seat Type: Flat / gasket
  • - Resistor: No
  • - Electrode Configuration: Projected
  • - Centre Electrode: Nickel alloy with copper core
  • - Ground Electrodes: 1

Compatible Outboards

  • Tohatsu
  • - M2 – 2 HP 2-Stroke
  • - M2.5 – 2.5 HP 2-Stroke
  • - M2.5A2 – 2.5 HP 2-Stroke
  • - M3.5 – 3.5 HP 2-Stroke
  • - M3.5A2 – 3.5 HP 2-Stroke
  • - M3.5B2 – 3.5 HP 2-Stroke

Mercury

  • - 2.5 HP 2-Stroke – serial 0A855097+
  • - 3.3 HP 2-Stroke – serial 0D901217+
  • - 3.5 HP 2-Stroke – USA serial 6202173+

Mariner

  • - Mariner 2.5 HP from 1990 — BP6HS with 0.6 mm gap
  • - Mariner 2.5 HP 1990–2002 — BPR6HS-10 with 1.0 mm gap
  • - Mariner 3.3 HP — BPR6HS with 0.7 mm gap

Cross-Reference / OEM Part Numbers

  • - NGK: BP6HS-10
  • - NGK Stock No.: 6326
  • - Tohatsu: 9701-1-1011
  • - Tohatsu: 97010-1011M
  • - Mercury / Mariner: 33-12127
  • - Mercury: 12127
  • - Resistor alternative: NGK BPR6HS-10
  • - Mercury resistor reference: 33-19796

Signs the Spark Plug Needs Replacing

  • - Difficult starting
  • - Rough or unstable idle
  • - Engine misfire
  • - Loss of power
  • - Poor acceleration
  • - Increased fuel consumption
  • - Carbon fouling
  • - Oil fouling
  • - Worn or rounded electrodes
  • - Excessive electrode gap
  • - Corroded plug body
  • - Cracked ceramic insulator

Shipping

Ships Australia-wide