Mercury NGK Spark Plug LKAR7C-9 - 8M0204737

Mercury NGK Spark Plug LKAR7C-9 - 8M0204737 / 8M0135348

Spark plug 8M0135348 is the NGK LKAR7C-9 standard plug.

Worn or damaged spark plugs can lead to engine misfires, poor fuel economy, rough idling, difficulty starting the engine, and decreased engine performance, ultimately affecting your overall efficiency and potentially causing further damage if left ignored. It is essential to replace the spark plugs on your outboard engines every year or 300hr. These spark plugs are sold individually.

• These NGK standard plugs are pre-gapped to .9mm to match your engine manufacturers specifications
• NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
• This NGK standard plug features a copper core to promote heat dissipation and more efficient spark plug operation

Features:

• NGK Fine Wire Platinum Tipped Center Electrode ensures higher durability, deliver slow wear rate, stable spark, superior anti-fouling, improved fuel efficiency and lower emissions
• This spark plug meets Mercury Marine original equipment manufacturer specifications to best protect your engine and ensure its optimum performance
• Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
• NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
• Longer service life with a copper core and ribbed suppressor seal for durability and performance

Fits:

• 175-225HP 3.4L V6 4-Stroke (SN 2B529482 & Above)
  • 6 Required
• 175HP Pro XS 3.4L V6 4-Stroke (SN 2B529482 & Above)
  • 6 Required
• 200-300HP Pro XS 4.6L V8 4-Stroke (SN 2B529485 & Above)
  • 8 Required
• 250-300HP CMS 4.6L V8 4-Stroke (SN 2B529482 & Above)
  • 8 Required
• 250-300HP AMS 4.6L V8 Verado 4-Stroke (SN 2B529482 & Above)
  • 8 Required
• 350-400HP 5.7L V10 4-Stroke (SN 3B266064 & Above)
  • 10 Required
• 250R 4.6L V8 4-Stroke (SN E1080500 & Above)
  • 8 Required
• 300R 4.6L V8 4-Stroke (SN E1080500 & Above)
  • 8 Required
• 400R 5.7L V10 4-Stroke (SN 3B272954 & Above)
  • 10 Required
• 450R 4.6L V8 4-Stroke (SN 1E083006 – 1E099720)
  • 8 Required
• 500R 4.6L V8 4-Stroke (SN 1E099432 & Above)
  • 8 Required