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Keep your vessel running at peak performance with high-quality marine engine parts and service essentials designed for dependable operation in demanding freshwater and saltwater environments. Our Engine Parts & Service collection features premium replacement parts, maintenance components, and service supplies to help extend engine life, improve reliability, and reduce unexpected downtime. From oil filters, fuel filters, impellers, belts, spark plugs, thermostats, anodes, gaskets, water pumps, lubricants, and tune-up kits to essential engine maintenance accessories, you'll find the components needed for routine servicing and repairs. Regular maintenance with quality marine engine parts helps maximize fuel efficiency, protect critical engine systems, and ensure dependable performance season after season.

Featuring products from trusted marine manufacturers for a wide range of inboard and outboard engines, our Engine Parts & Service collection delivers the quality and durability serious boaters expect. Browse our selection today and let our knowledgeable team help you find the right parts to keep your engine performing at its best.

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  • ARCO Marine Premium Replacement Ignition Coil f/Johnson/Evinrude Outboard Engines 1972-2006 [IG003]
    ARCO Marine

    ARCO Marine Premium Replacement Ignition Coil f/Johnson/Evinrude Outboard Engines 1972-2006 [IG003]

    £24.51
    £28.80
    £24.51
    Premium Replacement Ignition Coil for Johnson/Evinrude Outboard Engines 1972-2006This ignition coil fits 1972-2006, Universal Replacement Kit, Carbureted 2 Stroke Engines, 1 per Cyl.Replaces: Johnson / Evinrude Ignition Coil 584561 Johnson / Evinrude Ignition Coil 582106 Johnson / Evinrude Ignition Coil 583737 Johnson / Evinrude...
    £24.51
    £28.80
    £24.51
  • ARCO Marine Johnson/Evinrude Outboard Starter - V6 - 8 Tooth [5373]ARCO Marine Johnson/Evinrude Outboard Starter - V6 - 8 Tooth [5373]
    ARCO Marine

    ARCO Marine Johnson/Evinrude Outboard Starter - V6 - 8 Tooth [5373]

    £130.01
    £168.48
    £130.01
    Johnson/Evinrude Outboard Starter - V6 - 8 ToothThe outboard starter will fit BRP-OMC, 150-235 HP V6, and 8-tooth drive gear.ARCO advises using a fully charged battery - A weak battery can damage the starter and starter solenoid. And to also clean all connections -...
    £130.01
    £168.48
    £130.01
  • ARCO Marine Premium Replacement Alternator w/Multi-Groove Serpentine Pulley - 12V 65A [60060]ARCO Marine Premium Replacement Alternator w/Multi-Groove Serpentine Pulley - 12V 65A [60060]
    ARCO Marine

    ARCO Marine Premium Replacement Alternator w/Multi-Groove Serpentine Pulley - 12V 65A [60060]

    £181.27
    £234.36
    £181.27
    Premium Replacement Alternator with Multi-Groove Serpentine Pulley - 12V & 65AReplacement alternator that will fit late model Mercruiser, 12 Volt, 65 Amp, Internal Regulator 2-inch mounting foot, Multi-groove serpentine pulley included. Features: All alternators are engineered for performance and reliability All alternators are engineered and...
    £181.27
    £234.36
    £181.27
  • STA-BIL 360 Marine - 32oz *Case of 6* [22240CASE]
    STA-BIL

    STA-BIL 360 Marine - 32oz *Case of 6* [22240CASE]

    £84.69
    £151.51
    £84.69
    360® Marine™ - 32oz *Case of 6*CLEANS THE FUEL SYSTEM TO IMPROVE PERFORMANCESTA-BIL 360® MARINE™ use it with every fill up to help keep your engine running cleaner, leaner, smoother and stronger than ever.USAGE DIRECTIONS:1oz treats up to 10 gallons (38 liters) of fuel....
    £84.69
    £151.51
    £84.69
  • STA-BIL 360 Marine - 10oz *Case of 12* [22241CASE]
    STA-BIL

    STA-BIL 360 Marine - 10oz *Case of 12* [22241CASE]

    £72.06
    £169.30
    £72.06
    360® Marine™ - 10oz *Case of 12*CLEANS THE FUEL SYSTEM TO IMPROVE PERFORMANCESTA-BIL 360® MARINE™ use it with every fill up to help keep your engine running cleaner, leaner, smoother and stronger than ever.USAGE DIRECTIONS:1oz treats up to 10 gallons (38 liters) of fuel....
    £72.06
    £169.30
    £72.06
  • ARCO Marine IG024 Ignition Coil f/Yamaha Outboard Engines [IG024]
    ARCO Marine

    ARCO Marine IG024 Ignition Coil f/Yamaha Outboard Engines [IG024]

    £40.85
    £58.27
    £40.85
    IG024 Ignition Coil for Yamaha Outboard EnginesThis ARCO ignition coil is designed for specific Yamaha outboard engines.Fits: 115/130 (1994-09), 130 (1994-04), 175 (1994-00), 200 (1994-98), 225 (1994-97) C150/S115/S130/S150/S175/S200(1996-99) V150/L150/L200/P200 (1994-99); P115 (94-96), P175 (94-98), B115 (98-99), C115 (97-00), D150 (97-99), L130 (1994-01), V150 (2000-08)...
    £40.85
    £58.27
    £40.85
  • ARCO Marine Premium Replacement Alternator w/65mm Multi-Groove Pulley - 12V 70A [20800]ARCO Marine Premium Replacement Alternator w/65mm Multi-Groove Pulley - 12V 70A [20800]
    ARCO Marine

    ARCO Marine Premium Replacement Alternator w/65mm Multi-Groove Pulley - 12V 70A [20800]

    £153.04
    £200.54
    £153.04
    Premium Replacement Alternator with 65mm Multi-Groove Pulley - 12V 70AReplacement alternator that will fit Mercruiser 4.3L - 8.2L, 1998-Up, 12 Volt, 70 AMP, Internal Fan, 65-mm multi-groove serpentine pulley included.Features: All alternators are engineered for performance and reliability All alternators are engineered and manufactured...
    £153.04
    £200.54
    £153.04
  • ARCO Marine Standard Duty Inboard Starter w/Gear Reduction [30433]ARCO Marine Standard Duty Inboard Starter w/Gear Reduction [30433]
    ARCO Marine

    ARCO Marine Standard Duty Inboard Starter w/Gear Reduction [30433]

    £153.78
    £204.49
    £153.78
    Standard Duty Inboard Starter with Gear ReductionThe inboard starter that will fit Mercruiser, Volvo Penta, OMC, Marine Power, and others. All GM engines with 14" flywheel using a staggered bolt pattern. Recommended for late model 3.0 Liter with 14" flywheel using a tail bracket....
    £153.78
    £204.49
    £153.78
  • Whitecap Pro Dual Feed Motor Flusher w/Rectangular Cups [P-2402]
    Whitecap

    Whitecap Pro Dual Feed Motor Flusher w/Rectangular Cups [P-2402]

    £17.08
    £24.51
    £17.08
    Pro Dual Feed Motor Flusher with Rectangular CupsFeatures: Dual Feed Motor Flusher Rectangular Cups Included
    £17.08
    £24.51
    £17.08
  • Flushmaster Flush Port Quick Connect f/Mercury - White [SM-FMQCMW]Flushmaster Flush Port Quick Connect f/Mercury - White [SM-FMQCMW]
    Flushmaster

    Flushmaster Flush Port Quick Connect f/Mercury - White [SM-FMQCMW]

    £53.48
    £66.86
    £53.48
    Flush Port Quick Connect for Mercury - WhiteThe Flush Port Quick Connect for Mercury Outboards eliminates the frustration of stuck caps, stripped threads, and tedious hose connections, delivering fast, easy, and reliable flushing with enhanced visual protection for your engine.Features: No More Stuck Caps...
    £53.48
    £66.86
    £53.48
  • Trident Marine 3-1/2" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-3545-S/S]Trident Marine 3-1/2" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-3545-S/S]
    Trident Marine

    Trident Marine 3-1/2" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-3545-S/S]

    £64.63
    £99.91
    £64.63
    3-1/2" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow with 4 T-Bolt ClampsTrident EPDM marine wet exhaust connections are molded of high-temperature black EPDM rubber with a smooth bore and cover; except elbows of 6” I.D. or bigger have molded reinforcing ribs on...
    £64.63
    £99.91
    £64.63
  • Balmar Kit 621 Series 100A Single FT Alt MC Reg T Sensor [621-VUP-MC-100-SV]
    Balmar

    Balmar Kit 621 Series 100A Single FT Alt MC Reg T Sensor [621-VUP-MC-100-SV]

    £702.07
    £835.72
    £702.07
    Kit 621 Series 100A Single FT Alt MC Reg T SensorKit Includes: 621-100-SV Alternator, MC-618 Regulator, Temperature Sensors, Mounting Hardware621-100-SV Alternator: 100A, 12V, Spindle Mount (Single Foot), 1-2in, Single Deep Vee Pulley, Isolated Ground1" Motorola-Style Mounting;  Typical for Westerbeke, Lehman, Hino & Pathfinder Engines2" Delco-Style...
    £702.07
    £835.72
    £702.07
  • Trident Marine 2-1/2" ID 45 Blue Silicone Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [242V2120-S/S]
    Trident Marine

    Trident Marine 2-1/2" ID 45 Blue Silicone Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [242V2120-S/S]

    £57.94
    £90.01
    £57.94
    2-1/2" ID 45° Blue Silicone Molded Wet Exhaust Elbow with 4 T-Bolt ClampsSilicone & Rubber Elbows and Hump Hose Bellows provide the ultimate flexible connectors for Marine Wet Exhaust Systems. They offer much greater tolerance to heat, misalignment, engine movement, and vibration, with significant...
    £57.94
    £90.01
    £57.94
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 1.28"-1.59" Range [720-1000]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 1.28"-1.59" Range [720-1000]

    £7.42
    £11.49
    £7.42
    316 SS T-Bolt Clamp - 3/4" Band - 1.28"-1.59" 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...
    £7.42
    £11.49
    £7.42
  • Trident Marine 3" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-345-S/S]Trident Marine 3" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-345-S/S]
    Trident Marine

    Trident Marine 3" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-345-S/S]

    £57.94
    £89.53
    £57.94
    3" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow with 4 T-Bolt ClampsTrident EPDM marine wet exhaust connections are molded of high-temperature black EPDM rubber with a smooth bore and cover; except elbows of 6” I.D. or bigger have molded reinforcing ribs on...
    £57.94
    £89.53
    £57.94
  • Trident Marine 2" x 50' Extra-Flex Corrugated Marine Wet Exhaust Hose [252F-2006]Trident Marine 2" x 50' Extra-Flex Corrugated Marine Wet Exhaust Hose [252F-2006]
    Trident Marine

    Trident Marine 2" x 50' Extra-Flex Corrugated Marine Wet Exhaust Hose [252F-2006]

    £641.89
    £1,041.42
    £641.89
    2" x 50' Extra-Flex Corrugated Marine Wet Exhaust HoseTrident Extra-Flex corrugated marine wet exhaust hose with EXTRA flexibility for easier installations on tight bends for longer connections. Thick tube and cover with wire helix between 2-ply reinforcement. Exceptional flexibility and bend radius. Resists heat,...
    £641.89
    £1,041.42
    £641.89
  • Trident Marine 6" x 36" Blue Silicone Wet Exhaust Hose [202V6000-36]
    Trident Marine

    Trident Marine 6" x 36" Blue Silicone Wet Exhaust Hose [202V6000-36]

    £179.78
    £290.82
    £179.78
    6" x 36" Blue Silicone Wet Exhaust HoseTrident Silicone Marine Wet Exhaust Hose gives the best performance with a cool quiet elegance. Silicone naturally handles higher temperatures and will last longer than rubber exhaust hoses. The silicone will also transfer less heat into the...
    £179.78
    £290.82
    £179.78
  • Trident Marine 1-1/2" x 36" Blue Silicone Wet Exhaust Hose [202V1120-36]
    Trident Marine

    Trident Marine 1-1/2" x 36" Blue Silicone Wet Exhaust Hose [202V1120-36]

    £44.57
    £68.31
    £44.57
    1-1/2" x 36" Blue Silicone Wet Exhaust HoseTrident Silicone Marine Wet Exhaust Hose gives the best performance with a cool quiet elegance. Silicone naturally handles higher temperatures and will last longer than rubber exhaust hoses. The silicone will also transfer less heat into the...
    £44.57
    £68.31
    £44.57
  • Trident Marine Blue Silicone Wet Exhaust Hump w/4 T-Bolt Clamps - 8" ID x 8" Length [272V8000-S/S]
    Trident Marine

    Trident Marine Blue Silicone Wet Exhaust Hump w/4 T-Bolt Clamps - 8" ID x 8" Length [272V8000-S/S]

    £141.89
    £229.37
    £141.89
    Blue Silicone Wet Exhaust Hump with 4 T-Bolt Clamps - 8" ID x 8" LengthTrident Silicone Hump Hose Bellows provide the ultimate flexible connectors for marine wet exhaust systems. They offer much greater tolerance to heat, misalignment, engine movement, and vibration, with significant savings...
    £141.89
    £229.37
    £141.89
  • ARCO Marine Zeus 24V 7kW 3.15 Alternator w/Isolated Ground [4501]ARCO Marine Zeus 24V 7kW 3.15 Alternator w/Isolated Ground [4501]
    ARCO Marine

    ARCO Marine Zeus 24V 7kW 3.15 Alternator w/Isolated Ground [4501]

    £1,060.76
    £1,225.03
    £1,060.76
    Zeus 24V 7kW 3.15 Alternator with Isolated GroundThe ARCO Zeus 24v 7kW alternator generates extremely high amperage at cruising and higher RPMs. This alternator continuously generates over 3kW (109 Amps) at just under 3,000 alternator RPM and almost 6kW (218 Amps) at under 6,000...
    £1,060.76
    £1,225.03
    £1,060.76