Top 10 Best spark plugs for boat engines

spark plugs for boat engines
Find the perfect Fashion from our top 10 picks for 2025. Prices from 2.33 USD to 77.79 USD. Detailed comparison and expert reviews.
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SYKRSS - SYKRSS 4838 Iridium Spark Plugs 4 Pack - Compatible with Mercury Mariner 40hp 45hp 50hp 60hp 125hp etc. Boat Engine - Replaces BP8H-N-10 Spark Plug
#1
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  • ใ€Perfect Fitใ€‘Spark plugs Compatible with Mercury Mariner 125 hp 115 hp 100 hp 80 hp 60 hp 55 hp 50 hp 45 hp 40 hp 30 hp 25 hp 20 hp 18 hp 15 hp 9.9 hp 8.0 hp 6.0 hp Marathon etc. For more information about the fit, please check the picture or detail page. Note: Please verify your vehicle's make, model, and engine size before purchasing to ensure compatibility.
  • ใ€OE Replacementใ€‘Direct replacement for OE numbers 4838, BP8H-N-10. These spark plugs meet or exceed OEM standards for form, fit, and function. Made from high-temperature resistant materials, they withstand extreme thermal stress, ensuring durability and reliability.
  • ใ€Pre-Gapped Spark Plugใ€‘Each spark plug is pre-gapped to 1.0mm (0.039''), ensuring optimal ignition performance and hassle-free installation. For additional specifications such as thread size, hex size, and reach, please refer to the product images for complete details.
D 40.0 /100
ACDelco - ACDelco Gold MR43LTS (19355201) Marine Spark Plug
#2
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  • Made by AC Delco with nickel alloy tip, copper core and ribbed suppressor seal for durability and performance
  • Check your engine ownerโ€™s manual for the correct spark plug and use only the plug as recommended by your engineโ€™s original equipment manufacturer
  • Donโ€™t just clean used spark plugs, replace them with new plugs for better performance
D 40.0 /100
Quicksilver - Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Design Spark Plug, 1-Pack
#3
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  • NGK BU8H surface gap plugs feature a semi-surface discharge design to improve ignition and burn off any carbon before it can build up to foul the plug
  • Check your engine ownerโ€™s manual for the correct spark plug and use only the plug as recommended by your engineโ€™s original equipment manufacturer
  • NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
D 40.0 /100
ACDelco - ACDelco GM Original Equipment R45TS (19354415) Conventional Spark Plug
#4
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  • Black Onyx coating helps reduce corrosion
  • Copper core provides great heat transfer and helps maximize plug durability
  • Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires
D 40.0 /100
VelvetunVillay - 8PCS QL78YC BPZ8HS10 Spark Plugs Fit for Johnson Evinrude Mercury Marine Outboard Engines
#5
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  • Compatible models: Fit for Johnson Outboard Engines for r40 HP (1995-2001), for 50 HP (1996-1998), for 60 HP (1996-2001), for 70 HP (2001), for 90 HP (1998-2006), for 115 HP (1996-2006), for 150 HP (1996-2005), for 175 HP (1997-1999), for 200 HP (1997-2001), for 225 HP (2000)
  • Compatible models: Fit for Evinrude Outboard Engines for 40 HP (1995-1998), for 50 HP (1998), for 60 HP (1998), for 90 HP (1998-2001), for 100 HP (1999), for 105 HP (1997), for 125 HP (1997), for 150 HP (1997-2001), for 175 HP (1997), for 200 HP (1997-1998)
  • Compatible models: Fit for Mercury Outboard Engines for 9.9 HP (1986-1994), for 10 HP Magnum, Marathon (1991-2004), for 20 HP 20 Jet 50 HP (1995-2004), for 25 HP (1984-2001), for 25 HP Sea Pro (1993-2002), for 30 HP 30 Jet (1995-2001), for 30 HP Marathon (1995-2002), for 40 HP 4 Cylinder (1989-1997), for 60 HP (1991-2004), for 100 HP 4 Cylinder (1988-1999), for 115 HP 4 Cylinder 2-Stroke (1989-2004), for 150 HP 175 HP 200 HP V6, Magnum EFI (2000-2001)
D 40.0 /100
Champion - Champion 828M Pack of 4 Copper Marine Spark Plugs (QL77JC4) - -8%
#6
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Prime

  • Consult owners manual for proper part number identification and proper installation
  • Genuine Champion Spark Plugs
  • Please refer to list for compatibility
D 40.0 /100
$14.94 16.33 USD
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TORCH - TORCH E9Y-13 Marine Boat Spark Plug Replace for Autolite 2852, for NGK BUHW 2622 BU8H 6431 Spark Plug, for Denso 6001,for Champion QL76V, OEM, ea
#7
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  • ๐ŸŸขLONG HISTORY - In 1961, Zhuzhou torch spark plug. Co.,ltd. was established at Lukou, Zhuzhou, CHINA. In 1993๏ผŒTORCH was listed as Shenzhen stock exchange. In 2003๏ผŒTORCH has become chinaโ€™s largest spark plug production and R&D base. Subsequently, TORCH bought the full set of equipment and technical patent from DELPHI U.S.A. Spark plug factory, ride into the forefront of the world!
  • ๐ŸŸขSPECIFICATIONS - Thread diameter: 14mm/Thread length:12.7mm/Hex size:20.8mm. Please check for correct specifications and measurements for your application!!!
  • ๐ŸŸขCOMPATIBILITY - TORCH spark plugs E9Y-13 Replace for Autolite 2852 Spark Plug, for NGK BUHW Spark Plug, for Denso 6001 Spark Plug , for Champion QL76V Spark Plug, OEM.
D 40.0 /100
Vudajuley - ILFR6G-E 4212 Iridium Spark Plugs Fit for Mercury Verado L6 200-400 HP Outboard Engines 400R Boat, 6Pcs
#8
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  • Compatible Vehicles: Iridium spark plugs fit for Mercury Verado L6 Engines 200HP, 225HP, 250HP, 275HP, 300HP, 350HP, and 400HP outboard engines
  • Replacement Part Number: ILFR6G-E 4212, please make sure the part number is correct
  • High-Quality Materials: Iridium spark plugs have high hardness, are not easy to wear, can work stably under high temperature and high pressure environments, can adapt to harsh marine environments, and have a long service life
D 40.0 /100
BDFHYK - BDFHYK 4838 Iridium Spark Plugs Compatible with Mercury Mariner 40hp 45hp 50hp 60hp 125hp etc. Boat Engine Replacement for BP8H-N-10, Set of 4
#9
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  • ใ€Compatibility Informationใ€‘๏ผšUniversal Spark Plug 4838 compatible with Mercury Mariner 125 hp 115 hp 100 hp 80 hp 60 hp 55 hp 50 hp 45 hp 40 hp 30 hp 25 hp 20 hp 18 hp 15 hp 9.9 hp 8.0 hp 6.0 hp Marathon etc.Please see images or details page for complete Compatibility information
  • ใ€Spark Plug Featuresใ€‘:BDFHYK Spark plugs with superior ignition performance, faster and more sensitive ignition jumps, significant increase in power performance, saving energy consumption in the ignition process, efficiently adapted to the needs of the car. Exquisite production process, 100% brand new high quality auto parts, OE level durability
  • ใ€Relive Performanceใ€‘:OE standard performance and durability TS16949 certified manufacturer. All center electrodes are made from extremely fine iridium electrodes for good ignition performance. Insulators are made from isostatic ceramics for high density, strength, and good insulation
D 40.0 /100
NGK - BPR6ES NGK Spark Plug for Honda Engines & Other Small Engines (One Spark Plug) - -38%
#10
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Prime -38% In Stock
$6.09 9.89 USD
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Prices range from 2.33 USD to 77.79 USD, offering options for every budget.
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SYKRSS 4838 Iridium Spark Plugs 4 Pack - Compatible with Mercury Mariner 40hp 45hp 50hp 60hp 125hp etc. Boat Engine - Replaces BP8H-N-10 Spark Plug
๐Ÿฅ‡ #1

SYKRSS 4838 Iridium Spark Plugs 4 Pack -...

15.49 USD
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