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

Spark plug 6EB-9
NGK
Spark plug 6EB-9
article nr.NGKDPR6EB-9

Suitable for the following models: DORADO EFI 40XS-XRS, 50 /60 XS&XSR

15,14 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6EF
NGK
Spark plug 6EF
article nr.NGKBR6EF

SPARK PLUG

13,66 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6EIX
NGK
Spark plug 6EIX
article nr.NGKDCPR6EIX

SPARK PLUG

27,47 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6ES-11
NGK
Spark plug 6ES-11
article nr.NGKBKR6ES-11

SPARK PLUG

14,87 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
(Max quantity: 6 Piece)
Spark plug 6ES-11
NGK
Spark plug 6ES-11
article nr.NGKBPR6ES-11

SPARK PLUG

14,20 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
(Max quantity: 1 Piece)
Spark plug 6F-11
NGK
Spark plug 6F-11
article nr.NGKZFR6F-11

SPARK PLUG

13,34 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6H
NGK
Spark plug 6H
article nr.NGKPZFR6H

SPARK PLUG

34,77 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6HS
NGK
Spark plug 6HS
article nr.NGKCR6HS

Suitable for the following models: F8AM/BM/B/BE F9.9 AE/AM/B/BE/BMH/ELH (1985-99)

15,02 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6HSB
NGK
Spark plug 6HSB
article nr.NGKCR6HSB

Suitable for the following models: F4B-M F5A F6C-M

14,68 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6K-11E
Recmar
Spark plug 6K-11E
article nr.NGKIZFR6K-11E

Suitable for the following models: BF90D

36,08 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 6K-11S
NGK
Spark plug 6K-11S
article nr.NGKIZFR6K-11S

SPARK PLUG

38,18 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
(Max quantity: 1 Piece)
Spark plug 7EA-9
NGK
Spark plug 7EA-9
article nr.NGKDPR7EA-9

Suitable for the following models: FT F20 F25 (1998-08)

14,03 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 7EB
NGK
Spark plug 7EB
article nr.NGKDR7EB

SPARK PLUG

12,53 EUR / Piece
incl. 19% VAT
Derzeit nicht verfügbar **
24 months statutory warranty
Spark plug 7EIX
NGK
Spark plug 7EIX
article nr.NGKBPR7EIX

SPARK PLUG

25,16 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 7M
NGK
Spark plug 7M
article nr.NGKIZFR7M

SPARK PLUG

38,51 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 8HIX
NGK
Spark plug 8HIX
article nr.NGKBR8HIX

SPARK PLUG

29,98 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
(Max quantity: 6 Piece)
Spark plug 9EB
NGK
Spark plug 9EB
article nr.NGKCR9EB

Suitable for the following models: FX140/FX140 CRUISER/FX160/FX160 CRUISER/FX1100 HO/HO CRUISER

23,84 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug 9EH-9
NGK
Spark plug 9EH-9
article nr.NGKCR9EH-9

SPARK PLUG

30,56 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug BPR5HS from NGK
Spark plug BPR5HS from NGK
article nr.03770

Spark plugs for various outboard models from Suzuki and Tohatsu.

11,11 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Spark plug BPR7HS-10 from NGK
Spark plug BPR7HS-10 from NGK
article nr.04532
13,04 EUR / Piece
incl. 19% VAT
Lieferung Thu 06. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Displaying 81 to 100 (of 105 products)
  • 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.