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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 Zeus A275L 3.15 Alternator w/Isolated Ground Terminal Block [4019]ARCO Marine Zeus A275L 3.15 Alternator w/Isolated Ground Terminal Block [4019]
    ARCO Marine

    ARCO Marine Zeus A275L 3.15 Alternator w/Isolated Ground Terminal Block [4019]

    $1,532.54
    $1,746.21
    $1,532.54
    Zeus A275L 3.15 Alternator with Isolated Ground & Terminal BlockThe highest power output alternator in its size/class. Features: Engineered for high energy production. Suitable for marine, RV, military, and commercial applications. Rapidly charges large battery banks. Coolest operating temperatures for increased performance. Heat shedding coatings...
    $1,532.54
    $1,746.21
    $1,532.54
  • Attwood Universal Fuel Line Kit - 5/16" Diameter x 6 Length [951606ULP7]
    Attwood Marine

    Attwood Universal Fuel Line Kit - 5/16" Diameter x 6 Length [951606ULP7]

    $55.88
    $69.86
    $55.88
    Universal Fuel Line Kit - 5/16" Diameter x 6' LengthThis EPA-certified Attwood Universal Fuel Line Kit reliably delivers fuel to your engine and provides the ultimate in performance, safety, and value. The kit includes a 6-foot-long, 5/16-inch diameter low-permeation fuel line that is designed...
    $55.88
    $69.86
    $55.88
  • ARCO Marine Premium Replacement Universal Alternator w/Single Groove Pulley - 12V 55A [60075]ARCO Marine Premium Replacement Universal Alternator w/Single Groove Pulley - 12V 55A [60075]
    ARCO Marine

    ARCO Marine Premium Replacement Universal Alternator w/Single Groove Pulley - 12V 55A [60075]

    $321.39
    $417.48
    $321.39
    Premium Replacement Universal Alternator with Single Groove Pulley - 12V 55AReplacement alternator that will fit Yamaha, Marine Power, Crusader, Replaces Motorola, 12 Volt, 55 Amp, Internal regulator Includes: Tachometer terminal, indicator light terminal, remote battery sensing terminal, excite terminal, 1-inch mounting foot with 3-ear...
    $321.39
    $417.48
    $321.39
  • Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 5.28"-5.59" Range [720-5000]
    Trident Marine

    Trident Marine 316 SS T-Bolt Clamp - 3/4" Band - 5.28"-5.59" Range [720-5000]

    $20.95
    $30.56
    $20.95
    316 SS T-Bolt Clamp - 3/4" Band - 5.28"-5.59" 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...
    $20.95
    $30.56
    $20.95
  • GROCO 1" Engine Flush Kit Adaptor [SSC-1000]
    GROCO

    GROCO 1" Engine Flush Kit Adaptor [SSC-1000]

    $199.82
    $299.05
    $199.82
    1" Engine Flush Kit & AdaptorThe ConceptA simple quarter-turn quick-release plug can add safety and flexibility to any water system.  Add SSC to the top of any seacock to allow instant emergency bilge pumping, or to simplify winterization and cooling system flushing.In an EmergencyWhile...
    $199.82
    $299.05
    $199.82
  • Trident Marine 316 Stainless Steel T-Bolt Clamp 3/4" Band - Range 8.25" to 8.69" [720-8500]
    Trident Marine

    Trident Marine 316 Stainless Steel T-Bolt Clamp 3/4" Band - Range 8.25" to 8.69" [720-8500]

    $20.95
    $32.62
    $20.95
    316 Stainless Steel T-Bolt Clamp 3/4" Band - Range 8.25" to 8.69"Very 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...
    $20.95
    $32.62
    $20.95
  • Trident Marine 6" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-645-S/S]Trident Marine 6" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-645-S/S]
    Trident Marine

    Trident Marine 6" ID 45-Degree EPDM Black Rubber Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [TRL-645-S/S]

    $143.92
    $223.39
    $143.92
    6" 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...
    $143.92
    $223.39
    $143.92
  • Trident Marine 6" ID 90-Degree Blue Silicone Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [290V6000-S/S]Trident Marine 6" ID 90-Degree Blue Silicone Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [290V6000-S/S]
    Trident Marine

    Trident Marine 6" ID 90-Degree Blue Silicone Molded Wet Exhaust Elbow w/4 T-Bolt Clamps [290V6000-S/S]

    $272.48
    $442.18
    $272.48
    6" ID 90-Degree Blue Silicone Molded Wet Exhaust Elbow with 4 T-Bolt ClampsTrident silicone-blend rubber marine wet exhaust connections. They are molded in very high-temperature blue silicone EPDM blended rubber with a smooth bore and cover; except elbows of 6" I.D. or larger have...
    $272.48
    $442.18
    $272.48
  • ARCO Marine Zeus 24V 7kW J180 4" Alternator w/Isolated Ground [4503]ARCO Marine Zeus 24V 7kW J180 4" Alternator w/Isolated Ground [4503]
    ARCO Marine

    ARCO Marine Zeus 24V 7kW J180 4" Alternator w/Isolated Ground [4503]

    $1,995.22
    $2,304.19
    $1,995.22
    Zeus 24V 7kW J180 4" 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...
    $1,995.22
    $2,304.19
    $1,995.22
  • Attwood Johnson/Evinrude/OMC Female Hose Fitting - Tank Or Engine End - 3/8" Barb [8889LP6]
    Attwood Marine

    Attwood Johnson/Evinrude/OMC Female Hose Fitting - Tank Or Engine End - 3/8" Barb [8889LP6]

    $8.37
    $0.00
    $8.37
    Johnson/Evinrude/OMC (Outboard Marine Corporation) Female Hose Fitting - Tank Or Engine End - 3/8" BarbFor use on both ends of the fuel line to connect tank fitting and motor. The hose barb fits a 5/16" inner diameter hose.Features: Johnson, Evinrude, and OMC fitting Tank...
    $8.37
    $0.00
    $8.37
  • ARCO Marine Mercury/Mariner Outboard Starter - 8 Tooth [5380]ARCO Marine Mercury/Mariner Outboard Starter - 8 Tooth [5380]
    ARCO Marine

    ARCO Marine Mercury/Mariner Outboard Starter - 8 Tooth [5380]

    $275.28
    $356.88
    $275.28
    Mercury/Mariner Outboard Starter - 8 ToothThe outboard starter will fit Mercury /Marine, 135-200 HP V6, 105 HP Jet, 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...
    $275.28
    $356.88
    $275.28
  • ARCO Marine Original Equipment Quality Replacement Tilt Trim Motor f/Yamaha 2014-2021 [6294]
    ARCO Marine

    ARCO Marine Original Equipment Quality Replacement Tilt Trim Motor f/Yamaha 2014-2021 [6294]

    $609.26
    $795.07
    $609.26
    Original Equipment Quality Replacement Tilt Trim Motor for Yamaha 2014-2021Replacement outboard tilt trim motor that will fit Yamaha 90-130HP (fit for 4T F75 F80 F90 F100 F115 FL115 F125 F130).ARCO advises cleaning all connections: A corroded connection creates resistance, lowering the amperage required to...
    $609.26
    $795.07
    $609.26
  • ARCO Marine Outboard Solenoid w/Flat Isolated Base White Housing [SW097]ARCO Marine Outboard Solenoid w/Flat Isolated Base White Housing [SW097]
    ARCO Marine

    ARCO Marine Outboard Solenoid w/Flat Isolated Base White Housing [SW097]

    $50.29
    $66.61
    $50.29
    Outboard Solenoid with Flat Isolated Base & White HousingThe outboard solenoid will fit Mercruiser and Mercury. Isolated base, 12 Volt, White housing.Replaces:MERCURY 89-818997A1MERCURY 89-818997A2MERCURY 89-818997T1MERCURY 89-818998A1MERCURY 89-818998A2MERCURY 89-850187A1MERCURY 89-850187T1*ARCO Assurance 12-month part and labor warranty protectionThis product may not be returned to the original...
    $50.29
    $66.61
    $50.29
  • ARCO Marine Premium Replacement Ignition Coil f/Mercury Outboard Engines 1998-2006 [IG012]
    ARCO Marine

    ARCO Marine Premium Replacement Ignition Coil f/Mercury Outboard Engines 1998-2006 [IG012]

    $135.53
    $188.65
    $135.53
    Premium Replacement Ignition Coil for Mercury Outboard Engines 1998-2006This ignition coil fits 1998-2006 (135,200,225,250 & 300HP) Mercury outboard engines.Replaces: MERCURY Ignition Coil 339-850227 MERCURY Ignition Coil 339-856991A1 SIERRA Ignition Coil 18-5187 CDI Electronics Ignition Coil 184-0005 *ARCO Assurance 12-month part and labor warranty protectionThis...
    $135.53
    $188.65
    $135.53
  • Balmar Alternator 100 AMP 12V 3.15" Dual Foot Saddle Pulley w/Isolated Ground [60-100-DV]
    Balmar

    Balmar Alternator 100 AMP 12V 3.15" Dual Foot Saddle Pulley w/Isolated Ground [60-100-DV]

    $982.37
    $1,169.48
    $982.37
    Alternator 100 AMP 12V 3.15" Dual Foot Saddle Pulley with Isolated GroundAlternator, 60 Series, 100A, 12V, Saddle Mount (Dual Foot), 3.15in, Dual Deep Vee Pulley, Isolated Ground Hitachi-Style Mounting; Typical for Yanmar, Westerbeke, Lehman & Perkins-Sabre EnginesReplaces: 60-100-SR-IGThis product may not be returned to...
    $982.37
    $1,169.48
    $982.37
  • GROCO 2-1/2" Engine Flush Kit Adaptor [SSC-2500]
    GROCO

    GROCO 2-1/2" Engine Flush Kit Adaptor [SSC-2500]

    $384.27
    $600.89
    $384.27
    2-1/2" Engine Flush Kit & AdaptorThe ConceptA simple quarter-turn quick-release plug can add safety and flexibility to any water system.  Add SSC to the top of any seacock to allow instant emergency bilge pumping, or to simplify winterization and cooling system flushing.In an EmergencyWhile...
    $384.27
    $600.89
    $384.27
  • Regitar USA Voltage Regulator f/Mercury Marine Outboard 4 Stroke 30, 40, 50, and 60 Hp Engines [RMV005]Regitar USA Voltage Regulator f/Mercury Marine Outboard 4 Stroke 30, 40, 50, and 60 Hp Engines [RMV005]
    Regitar U.S.A.

    Regitar USA Voltage Regulator f/Mercury Marine Outboard 4 Stroke 30, 40, 50, and 60 Hp Engines [RMV005]

    $110.38
    $174.68
    $110.38
    Voltage Regulator for Mercury Marine Outboard 4 Stroke 30, 40, 50, and 60 Hp EnginesVoltage Regulator for Mercury Marine Outboard 4 Stroke 30, 40, 50, and 60 Hp Engines.Engine Brand:MercuryFitment:Mercury Outboards 2/3/4/6 Cyl.  (1999 – 2007) Specifications: Type: Parts Box Dimensions: 3"H x 4"W...
    $110.38
    $174.68
    $110.38
  • Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley Regulator Temp Sensor [621-VUP-MC-120-DV]
    Balmar

    Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley Regulator Temp Sensor [621-VUP-MC-120-DV]

    $1,430.94
    $1,703.99
    $1,430.94
    Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley Regulator & Temp SensorKit Includes: 621-120-DV Alternator, MC-618 Regulator, Temperature Sensors, Mounting Hardware621-120-DV Alternator: 120A, 12V, Spindle Mount (Single Foot), 1-2in, Dual Deep Vee Pulley, Isolated Ground1" Motorola-Style Mounting;  Typical for Westerbeke,...
    $1,430.94
    $1,703.99
    $1,430.94
  • Balmar Pulley Kit Yanmar f/3YM30 [48-YSP-3YM-B]
    Balmar

    Balmar Pulley Kit Yanmar f/3YM30 [48-YSP-3YM-B]

    $963.50
    $0.00
    $963.50
    Pulley Kit Yanmar for 3YM30AltMount®Serpentine Pulley Conversion Kit for Yanmar Diesel EnginesYanmar Engines Covered: 3YM30Kit Includes: Three Ten-Groove (J10) Pulleys, Two J10, 39″ Circumference Serpentine Belts (one spare) & Mounting HardwareNote: If you specify an AT-200A Alternator, a longer belt length may be required.This...
    $963.50
    $0.00
    $963.50
  • Balmar Alternator 250 AMP Kit 12V 3.15" Dual Foot Saddle J10 Pulley Regulator Temp Sensor [XT-DF-250-J10-KIT]
    Balmar

    Balmar Alternator 250 AMP Kit 12V 3.15" Dual Foot Saddle J10 Pulley Regulator Temp Sensor [XT-DF-250-J10-KIT]

    $2,070.95
    $2,464.60
    $2,070.95
    Alternator 250 AMP Kit 12V 3.15" Dual Foot Saddle J10 Pulley Regulator & Temp SensorKit Includes: XT-DF-250-J10 Alternator, MC-618 Regulator, Temperature Sensors & Mounting HardwareXT Series Alternator: 250A, 12V, Saddle Mount (Dual Foot), 3.15in, J10 AltMount Serpentine Pulley, Case GroundHitachi-Style Mounting; Typical for Yanmar,...
    $2,070.95
    $2,464.60
    $2,070.95