Spark plugs

Marine spark plugs for boat engines

Marine spark plugs are important components in the ignition system of boat engines. They ensure the ignition of the fuel-air mixture in the engine and enable reliable starting and stable engine performance. In this category you will find spark plugs for outboards and marine engines that are used for maintenance, service and the reliable operation of boat drives.

Mercruiser spark plugs - guide & selection aid

NGK BPR5EFIX-13 spark plug
NGK BPR5EFIX-13 spark plug
article nr.09889

BPR5EFIX spark plugs for inboard and outboard engines

24,24 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
NGK BPR5EFS spark plug
NGK BPR5EFS spark plug
article nr.09809

BPR5EFS spark plugs for inboard and outboard engines

8,11 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
NGK BR5HS spark plug
NGK BR5HS spark plug
article nr.04387

Spark plugs BR5HS for inboard and outboard engines

11,49 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
NGK BR6FIX spark plug
NGK BR6FIX spark plug
article nr.03954

Spark plugs BR6FIX for inboard and outboard engines

26,32 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Ngk spark plug 5HS
NGK
Ngk spark plug 5HS
article nr.NGKB5HS

NGK SPARK PLUG

13,34 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Ngk spark plug 6ES
NGK
Ngk spark plug 6ES
article nr.NGKBPR6ES

Suitable for the following models: DF60, DF70

13,34 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
NGK spark plug 6FS
NGK
NGK spark plug 6FS
article nr.NGKBR6FS

Suitable for the following models: STERN-DRIVE ESSENCE

14,65 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Ngk spark plug 6HS
NGK
Ngk spark plug 6HS
article nr.NGKBP6HS

Suitable for the following models: DT5

11,96 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Ngk spark plug Ilmar7E9 Yamaha Lma-R7E90-00-00
NGK
Ngk spark plug Ilmar7E9 Yamaha Lma-R7E90-00-00
article nr.NGKILMAR7E9

NGK SPARK PLUG ILMAR7E9

45,00 EUR / Piece
incl. 19% VAT
Derzeit nicht verfügbar **
24 months statutory warranty
NGK spark plugs
NGK spark plugs
article nr.03156

More spark plugs

Ring compressor 4206
Recmar
Ring compressor 4206
article nr.SSP4206

RING COMPRESSOR

102,20 EUR
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Ring compressor 4207
Recmar
Ring compressor 4207
article nr.SSP4207

RING COMPRESSOR

65,21 EUR
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Ring compressor kit 4213
Recmar
Ring compressor kit 4213
article nr.SSP4213

RING COMPRESSOR KIT

311,92 EUR / Set
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
(Max quantity: 1 Set)
Spark plug
NGK
Spark plug
article nr.NGKBUHX

SPARK PLUG

16,60 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 4HS
NGK
Spark plug 4HS
article nr.NGKDR4HS

Suitable for the following models: BF6

15,05 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 4IX
NGK
Spark plug 4IX
article nr.NGKUR4IX

SPARK PLUG

27,74 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 5
NGK
Spark plug 5
article nr.NGKTR5

SPARK PLUG

13,81 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 5HSB
NGK
Spark plug 5HSB
article nr.NGKCR5HSB

Suitable for the following models: BF28D

14,78 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 5J
NGK
Spark plug 5J
article nr.NGKIZFR5J

Suitable for the following models: MD115A2 (TLDI)

50,10 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6C-9
NGK
Spark plug 6C-9
article nr.NGKLMAR6C-9

Suitable for the following models: BFT60A

32,55 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
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  • Over 15 years’ experience in the marine spare parts trade
    Over 15 years’ experience in the marine spare parts trade
  • Official Mercury & MerCruiser dealer
    Official Mercury & MerCruiser dealer
  • A wide range of boat engine spare parts from A to Z
    A wide range of boat engine spare parts from A to Z
  • Spare parts for Volvo Penta, MerCruiser, Yamaha, Honda, Suzuki and more
    Spare parts for Volvo Penta, MerCruiser, Yamaha, Honda, Suzuki and more
  • Fast delivery for maintenance, servicing and repairs
    Fast delivery for maintenance, servicing and repairs
  • Order boat spare parts conveniently online 24/7
    Order boat spare parts conveniently online 24/7

Marine spark plugs for outboards and boat engines

Spark plugs are a central component of a boat engine's ignition system. They generate the electrical spark that ignites the fuel-air mixture in the cylinder and thus starts the combustion process in the engine. A functioning spark plug is crucial for a reliable engine start and stable engine performance.

Marine spark plugs are specially developed for use in boat engines and must be able to withstand high temperatures, vibrations and moisture.

Functions of a spark plug in a boat engine

The spark plug fulfills several important functions in engine operation:

  • Generation of an electrical ignition spark

  • Ignition of the fuel-air mixture in the cylinder

  • Supporting stable engine running

  • Ensuring an efficient combustion process

A correctly functioning spark plug ensures that the engine runs smoothly and can help to reduce fuel consumption and emissions.

Spark plugs for different boat engines

Marine spark plugs are used in many different boat engines, including

  • Outboard engines

  • Inboard engines

  • Jet ski engines

  • Generators and auxiliary engines

Different spark plug types are used depending on the engine manufacturer and engine series. Many well-known manufacturers of marine spark plugs include NGK, Champion and Denso.

Maintenance and replacement of marine spark plugs

Spark plugs are one of the typical maintenance and wear parts of a boat engine. Deposits, wear or incorrect electrode gaps can impair the function of the spark plug and lead to starting problems or loss of power.

Many manufacturers therefore recommend regular inspection and replacement of the spark plugs as part of engine maintenance.