Sidebar

Categories

Engine Parts & Service - Accessories

Marine engine accessories are designed to enhance the performance, reliability, and longevity of your vessel's engine while supporting routine maintenance, repairs, and upgrades. Engineered for demanding freshwater and saltwater environments, these marine-grade accessories are built to withstand vibration, moisture, heat, and corrosion for dependable operation season after season. From engine mounting hardware, service tools, hoses, fittings, fuel system accessories, cooling system components, replacement hardware, and maintenance supplies to specialized installation and repair accessories, these products help keep your engine operating at peak efficiency. Whether you're performing scheduled maintenance, replacing worn components, or completing a new engine installation, the right accessories simplify service and help protect your investment. Engine maintenance with quality accessories contributes to improved reliability, smoother operation, and extended engine life.

Featuring premium products from trusted marine manufacturers, our Engine Parts & Service – Accessories collection delivers the quality, durability, and performance serious boaters expect. Browse our selection today and let our knowledgeable team help you find the ideal accessories to keep your marine engine running at its best.

Filter
  • 10
  • 15
  • 20
  • 25
  • 30
  • 50
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
Sort

Sort by:

  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
  • Regitar USA Distributor Cap f/GM V-8 Engines w/Thunderbolt IV V HEI Ignitions [RMN014]Regitar USA Distributor Cap f/GM V-8 Engines w/Thunderbolt IV V HEI Ignitions [RMN014]
    Regitar U.S.A.

    Regitar USA Distributor Cap f/GM V-8 Engines w/Thunderbolt IV V HEI Ignitions [RMN014]

    £8.92
    £11.16
    £8.92
    Distributor Cap for GM V-8 Engines with Thunderbolt IV & V HEI IgnitionsDistributor Cap for GM V-8 Engines with Thunderbolt IV and V HEI Ignitions.Engine Brand: Mercury / Mercruiser OMC Fitment:GM V-8 Engines with Thunderbolt IV & V HEI Ignitions Brochure (pdf)
    £8.92
    £11.16
    £8.92
  • ARCO Marine IG026 Ignition Coil f/Yamaha Outboard Engines [IG026]
    ARCO Marine

    ARCO Marine IG026 Ignition Coil f/Yamaha Outboard Engines [IG026]

    £39.42
    £52.23
    £39.42
    IG026 Ignition Coil for Yamaha Outboard EnginesThis ARCO ignition coil is designed for specific Yamaha outboard engines.Fits:Outboard engine 115-225HP; L200, L150, L130, 115, 130, 150, 175, 200, 225Replaces: YAMAHA Ignition Coil 6E5-85570-11-00 YAMAHA Ignition Coil 6E5-85570-10-00 SIERRA Ignition Coil 18-5110 CDI ELECTRONICS Ignition Coil...
    £39.42
    £52.23
    £39.42
  • Regitar USA Condenser f/GM 4 6-Cylinder Engine w/Delco Ignition [RMB001]Regitar USA Condenser f/GM 4 6-Cylinder Engine w/Delco Ignition [RMB001]
    Regitar U.S.A.

    Regitar USA Condenser f/GM 4 6-Cylinder Engine w/Delco Ignition [RMB001]

    £3.71
    £5.21
    £3.71
    Condenser for GM 4 & 6-Cylinder Engine with Delco IgnitionCondenser for 4 and 6-cylinder Mercruiser, Volvo Penta, and OMC inboard engines with Delco Conventional Ignitions.Engine Brand: Mercury / Mercruiser OMC Volvo Penta Fitment: GM 4 and 6-cylinder Engines With Delco Conventional Ignition Specifications: Type: Parts...
    £3.71
    £5.21
    £3.71
  • Flushmaster Portable Storage Bag [SM-FMBAG1]Flushmaster Portable Storage Bag [SM-FMBAG1]
    Flushmaster

    Flushmaster Portable Storage Bag [SM-FMBAG1]

    £14.87
    £0.00
    £14.87
    Portable Storage BagKeep your Flushmaster and hose kit safe and ready for action with the Portable Storage Bag. Whether on the go or trailering your boat, this reliable bag ensures your equipment stays secure and accessible. Order yours today for easy, worry-free adventures!Portable Storage...
    £14.87
    £0.00
    £14.87
  • Regitar USA Rotor f/Mercruiser Inboard Engines: GM Style "Module in Cap" Distributors 4.3L V-6 Engines w/Delco HEI Ignition [RMN004]Regitar USA Rotor f/Mercruiser Inboard Engines: GM Style "Module in Cap" Distributors 4.3L V-6 Engines w/Delco HEI Ignition [RMN004]
    Regitar U.S.A.

    Regitar USA Rotor f/Mercruiser Inboard Engines: GM Style "Module in Cap" Distributors 4.3L V-6 Engines w/Delco HEI Ignition [RMN004]

    £5.20
    £6.69
    £5.20
    Rotor for Mercruiser Inboard Engines: GM Style "Module in Cap" Distributors 4.3L V-6 Engines with Delco HEI IgnitionRotor for Mercruiser Inboard Engines: GM Style "Module in Cap" Distributors 4.3L V-6 Engines with Delco HEI Ignition.Engine Brand: Mercury / Mercruiser OMC Fitment:New GM Style "Module...
    £5.20
    £6.69
    £5.20
  • Regitar USA Relay w/Shroud f/Mercruiser 575 Sci, 350MAG, 4.3L, 6.2L, 5.0L, 383MAG [RMZ014]Regitar USA Relay w/Shroud f/Mercruiser 575 Sci, 350MAG, 4.3L, 6.2L, 5.0L, 383MAG [RMZ014]
    Regitar U.S.A.

    Regitar USA Relay w/Shroud f/Mercruiser 575 Sci, 350MAG, 4.3L, 6.2L, 5.0L, 383MAG [RMZ014]

    £13.38
    £20.82
    £13.38
    Relay with Shroud for Mercruiser 575 Sci, 350MAG, 4.3L, 6.2L, 5.0L, 383MAGRelay with Shroud for Mercruiser 575 Sci, 350MAG, 4.3L, 6.2L, 5.0L, 383MAG.Engine Brand:MercuryFitment:Mercruiser 575 Sci, 350MAG, 4.3L, 6.2L, 5.0L, 383MAG Specifications: Type: Parts Box Dimensions: 2"H x 2"W x 3"L WT: 0.11 lbs...
    £13.38
    £20.82
    £13.38
  • Regitar USA Relay w/Tab f/Most Engines: 30AMP, 5 Terminal, Single Pole/Double Throw [RMZ013]Regitar USA Relay w/Tab f/Most Engines: 30AMP, 5 Terminal, Single Pole/Double Throw [RMZ013]
    Regitar U.S.A.

    Regitar USA Relay w/Tab f/Most Engines: 30AMP, 5 Terminal, Single Pole/Double Throw [RMZ013]

    £8.92
    £12.64
    £8.92
    Relay with Tab for Most Engines: 30AMP, 5 Terminal, Single Pole/Double ThrowRelay with tab for most Engines: 30AMP, 5 terminal, Single pole / Double throw.Engine Brand:MercuryFitment: Power Trim Relay with mounting tab Fits most 2 Stroke & 4 Stroke (non-Verado) Mercury engines Specifications: Type:...
    £8.92
    £12.64
    £8.92
  • Regitar USA Voltage Regulator f/Mercury [RMV001]Regitar USA Voltage Regulator f/Mercury [RMV001]
    Regitar U.S.A.

    Regitar USA Voltage Regulator f/Mercury [RMV001]

    £61.73
    £92.98
    £61.73
    Voltage Regulator for MercuryVoltage Regulator for Mercury: 1995-2005 (25-40HP – 2 Cyl.) / 1987-2007 (45-90HP – 3 Cyl.) / 1989-2006 (90-125HP – 4 Cyl.) / 1992-2000 (150-225HP – 6 Cyl.).Engine Brand:Mercury MarineFitment: 1995-2005 (25-40HP – 2 Cyl.)    1987-2007 (45-90HP – 3 Cyl.) 1989-2006...
    £61.73
    £92.98
    £61.73
  • Regitar USA Relay f/Most Engines: 30AMP, 5 Terminal, Single Pole/Double Throw [RMZ012]Regitar USA Relay f/Most Engines: 30AMP, 5 Terminal, Single Pole/Double Throw [RMZ012]
    Regitar U.S.A.

    Regitar USA Relay f/Most Engines: 30AMP, 5 Terminal, Single Pole/Double Throw [RMZ012]

    £8.92
    £14.13
    £8.92
    Relay for Most Engines: 30AMP, 5 Terminal, Single Pole/Double ThrowRelay for most Engines: 30AMP, 5 terminal, Single pole / Double throw.Engine Brand: OMC Volvo Penta Fitment: Conductive - 30 Amps 5 Terminal, 12 Volts Single Pole, Double Throw Specifications: Type: Parts Box Dimensions: 2"H...
    £8.92
    £14.13
    £8.92
  • Regitar USA Rotor f/Mercruiser OMC 4 6 Cyl. Engines w/Delco Conventional Ignition [RMN003]
    Regitar U.S.A.

    Regitar USA Rotor f/Mercruiser OMC 4 6 Cyl. Engines w/Delco Conventional Ignition [RMN003]

    £2.97
    £3.79
    £2.97
    Rotor for Mercruiser & OMC 4 & 6 Cylinder Engines with Delco Conventional IgnitionRotor for Mercruiser and OMC 4 & 6 Cylinder Engines with Delco Conventional Ignition.Engine Brand: Mercury / Mercruiser OMC Fitment:GM 4 & 6 Cylinder Engines with Delco Conventional Ignition Brochure (pdf)
    £2.97
    £3.79
    £2.97
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 8.30"-8.87" Range [720-8000]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 8.30"-8.87" Range [720-8000]

    £11.15
    £17.32
    £11.15
    316 SS T-Bolt Clamp - 3/4" Band - 8.30"-8.87" RangeVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage for a...
    £11.15
    £17.32
    £11.15
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 4.28"-4.59" Range [720-4000]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 4.28"-4.59" Range [720-4000]

    £10.41
    £15.54
    £10.41
    316 SS T-Bolt Clamp - 3/4" Band - 4.28"-4.59" RangeVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage for a...
    £10.41
    £15.54
    £10.41
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 3.78"-4.09" Range [720-3120]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 3.78"-4.09" Range [720-3120]

    £8.17
    £15.17
    £8.17
    316 SS T-Bolt Clamp - 3/4" Band - 3.78"-4.09" RangeVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage for a...
    £8.17
    £15.17
    £8.17
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 3.28"-3.59" Range [720-3000]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 3.28"-3.59" Range [720-3000]

    £9.66
    £14.80
    £9.66
    316 SS T-Bolt Clamp - 3/4" Band - 3.28"-3.59" RangeVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage for a...
    £9.66
    £14.80
    £9.66
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 2.78"-3.09" Range [720-2120]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 2.78"-3.09" Range [720-2120]

    £8.92
    £13.15
    £8.92
    316 SS T-Bolt Clamp - 3/4" Band - 2.78"-3.09" RangeVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage for a...
    £8.92
    £13.15
    £8.92
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 8.62"-9.19" Range - 10-Pack [720-8001L]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 8.62"-9.19" Range - 10-Pack [720-8001L]

    £81.82
    £133.87
    £81.82
    316 SS T-Bolt Clamp - 3/4" Band - 8.62"-9.19" Range - 10-PackVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage...
    £81.82
    £133.87
    £81.82
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 8.30"-8.87" Range - 10-Pack [720-8001]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 8.30"-8.87" Range - 10-Pack [720-8001]

    £78.84
    £148.25
    £78.84
    316 SS T-Bolt Clamp - 3/4" Band - 8.30"-8.87" Range - 10-PackVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage...
    £78.84
    £148.25
    £78.84
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 6.53"-7.10" Range - 10-Pack [720-6001L]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 6.53"-7.10" Range - 10-Pack [720-6001L]

    £76.61
    £144.14
    £76.61
    316 SS T-Bolt Clamp - 3/4" Band - 6.53"-7.10" Range - 10-PackVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage...
    £76.61
    £144.14
    £76.61
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 6.30"-6.74" Range - 10-Pack [720-6001]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 6.30"-6.74" Range - 10-Pack [720-6001]

    £75.86
    £142.09
    £75.86
    316 SS T-Bolt Clamp - 3/4" Band - 6.30"-6.74" Range - 10-PackVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage...
    £75.86
    £142.09
    £75.86
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 5.37"-5.94" Range - 10-Pack [720-5001L]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 5.37"-5.94" Range - 10-Pack [720-5001L]

    £74.38
    £140.04
    £74.38
    316 SS T-Bolt Clamp - 3/4" Band - 5.37"-5.94" Range - 10-PackVery strong and secure clamp for critical installations. Trident Marine T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage...
    £74.38
    £140.04
    £74.38