Keep your boat's engine running at peak performance with our comprehensive selection for Engine Parts & Service. We stock critical components for both inboard and outboard motors.

Find high-quality fuel pumps, durable fuel line kits from brands like Attwood, and specialized items like wet exhaust elbows and Balmar alternators. Essential for maintenance, we also carry the full line of Flushmaster Outboard Flushing Systems to protect your engine from salt and corrosion. Everything you need for reliable operation and professional-grade engine maintenance.

485 products

  • Trident Marine 112 Flex Marine Wet Exhaust Water Hose Black Sold by the Foot 2501126FT

    Trident Marine 1-1/2" Flex Marine Wet Exhaust Water Hose - Black - Sold by the Foot [250-1126-FT]

    Trident Marine

    Trident Marine 1-1/2" Flex Marine Wet Exhaust Water Hose - Black - Sold by the Foot [250-1126-FT]

    1-1/2" Flex Marine Wet Exhaust & Water Hose - Black - Sold by the FootTrident Flex wet exhaust hose for longer bent connections. In smaller I.D.s for engine intake, critical...
    $12.99
    $19.99 $12.99
    Sale
  • GROCO 34 Engine Flush Kit Adaptor SSC750

    GROCO 3/4" Engine Flush Kit Adaptor [SSC-750]

    GROCO

    GROCO 3/4" Engine Flush Kit Adaptor [SSC-750]

    3/4" 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...
    $120.99
    $181.00 $120.99
    Sale
  • ARCO Marine Premium Replacement Outboard Starter fYamaha 150300HP 9 Tooth 3437

    ARCO Marine Premium Replacement Outboard Starter f/Yamaha 150-300HP - 9 Tooth [3437]

    ARCO Marine

    ARCO Marine Premium Replacement Outboard Starter f/Yamaha 150-300HP - 9 Tooth [3437]

    Premium Replacement Outboard Starter for Yamaha 150-300HP - 9 ToothReplacement outboard starter that will fit Yamaha 150HP, 175HP, 200HP, 225HP, 250HP, 300HP 4-Stroke.ARCO advises using a fully charged battery -...
    $449.99
    $561.49 $449.99
    Sale
  • ARCO Marine Zeus A275L 315 Alternator wCase Ground Common Rail Terminal Block 4020

    ARCO Marine Zeus A275L 3.15 Alternator w/Case Ground (Common Rail) Terminal Block [4020]

    ARCO Marine

    ARCO Marine Zeus A275L 3.15 Alternator w/Case Ground (Common Rail) Terminal Block [4020]

    Zeus A275L 3.15 Alternator with Case Ground (Common Rail) & Terminal BlockThe highest power output alternator in its size/class. Features: Engineered for high energy production. Suitable for marine, RV, military, and...
    $986.70
    $1,124.20 $986.70
    Sale
  • ARCO Marine Zeus A275L 315 Alternator wIsolated 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]

    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....
    $1,096.70
    $1,249.60 $1,096.70
    Sale
  • STABIL 360 Marine 10oz Case of 12 22241CASE

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

    STA-BIL

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

    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...
    $103.99
    $227.88 $103.99
    Sale
  • STABIL Fogging Oil 12oz Case of 6 22001CASE

    STA-BIL Fogging Oil - 12oz *Case of 6* [22001CASE]

    STA-BIL

    STA-BIL Fogging Oil - 12oz *Case of 6* [22001CASE]

    Fogging Oil - 12oz *Case of 6*STA- BIL Fogging Oil is an aerosol propelled oil treatment to protect internal engine components during storage. This fogging oil can be sprayed to...
    $33.99
    $41.94 $33.99
    Sale
  • STABIL 360 Marine 10oz 22241

    STA-BIL 360 Marine - 10oz [22241]

    STA-BIL

    STA-BIL 360 Marine - 10oz [22241]

    360® Marine™ - 10ozCLEANS 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...
    $9.99
    $18.99 $9.99
    Sale
  • Balmar Yanmar Pulley Kit f4JH 4JHE TE HTE DTE 48YSP4JHF

    Balmar Yanmar Pulley Kit f/4JH, 4JHE, -TE, -HTE, -DTE [48-YSP-4JH-F]

    Balmar

    Balmar Yanmar Pulley Kit f/4JH, 4JHE, -TE, -HTE, -DTE [48-YSP-4JH-F]

    Yanmar Pulley Kit for 4JH, 4JHE, -TE, -HTE, -DTEAltMount® Serpentine Pulley Conversion Kit for Yanmar Diesel EnginesYanmar Engines Covered: 4JH, 4JHE, -TE, -HTE, -DTEKit Includes:  Three Ten-Groove (J10) Pulleys Two J10...
    $662.89
    $0.00 $662.89
  • Balmar Alternator Protection Module 48V APM48

    Balmar Alternator Protection Module - 48V [APM-48]

    Balmar

    Balmar Alternator Protection Module - 48V [APM-48]

    Alternator Protection Module - 48VThe Balmar APM provides best-in-class surge protection using the latest technology developed for the automotive industry. Protect Alternators From Damaging Effects: Battery switch disconnects Lithium battery BMS...
    $138.99
    $157.99 $138.99
    Sale
  • Balmar Alternator 250 AMP Kit 12V 4 Dual Foot Saddle Dual Vee Pulley Regulator Temp Sensor XTDF4250DVKIT

    Balmar Alternator 250 AMP Kit 12V 4" Dual Foot Saddle Dual Vee Pulley Regulator Temp Sensor [XT-DF4-250-DV-KIT]

    Balmar

    Balmar Alternator 250 AMP Kit 12V 4" Dual Foot Saddle Dual Vee Pulley Regulator Temp Sensor [XT-DF4-250-DV-KIT]

    Alternator 250 AMP Kit 12V 4" Dual Foot Saddle Dual Vee Pulley Regulator & Temp SensorKit Includes: XT-DF4-250-DV Alternator, MC-618 Regulator, Temperature Sensors & Mounting HardwareXT Series Alternator: 250A, 12V,...
    $1,486.99
    $1,695.79 $1,486.99
    Sale
  • Balmar Alternator 100 AMP Kit 12V 315 Dual Foot Saddle Single Vee Pulley Regulator Temp Sensor 60YPMC100SV

    Balmar Alternator 100 AMP Kit 12V 3.15" Dual Foot Saddle Single Vee Pulley Regulator Temp Sensor [60-YP-MC-100-SV]

    Balmar

    Balmar Alternator 100 AMP Kit 12V 3.15" Dual Foot Saddle Single Vee Pulley Regulator Temp Sensor [60-YP-MC-100-SV]

    Alternator 100 AMP Kit 12V 3.15" Dual Foot Saddle Single Vee Pulley Regulator & Temp SensorKit Includes: a 60-100-SV Alternator, MC-618 Regulator, Temperature Sensors, Mounting Hardware60-100-SV Alternator: 100A, 12V, Saddle...
    $947.99
    $1,081.59 $947.99
    Sale
  • Balmar Temperature Sensor Alternator 80 Length MCTSA80

    Balmar Temperature Sensor Alternator - 80" Length [MC-TS-A80]

    Balmar

    Balmar Temperature Sensor Alternator - 80" Length [MC-TS-A80]

    Temperature Sensor Alternator - 80" LengthIntended for longer runs when the standard 54" Alternator Temp Sensor (PN: MC-TS-A) is insufficient.This product may not be returned to the original point of...
    $42.99
    $48.79 $42.99
    Sale
  • Balmar Max Charge MC618 MultiStage Regulator wo Harness 12V MC618

    Balmar Max Charge MC618 Multi-Stage Regulator w/o Harness - 12V [MC-618]

    Balmar

    Balmar Max Charge MC618 Multi-Stage Regulator w/o Harness - 12V [MC-618]

    Max Charge MC618 Multi-Stage Regulator without Harness - 12VBalmar's MC-618 Regulator communicates with the SG200 Battery Monitor to provide information to the SG200 Color Display and Smartphone App.  Now you...
    $319.99
    $365.09 $319.99
    Sale
  • Balmar Offshore Repair Kit 60 Series 12V wBearings Brushes RegulatorRectifier 7060

    Balmar Offshore Repair Kit 60 Series 12V w/Bearings, Brushes, Regulator/Rectifier [7060]

    Balmar

    Balmar Offshore Repair Kit 60 Series 12V w/Bearings, Brushes, Regulator/Rectifier [7060]

    Offshore Repair Kit 60 Series 12V with Bearings, Brushes, Regulator/RectifierOffshore Repair Kit, 60 Series Alternators, 12VKit Includes: Regulator Brush Holder Assembly Rear Bearing  Regulator Washer  Rectifier Assembly  Rectifier Gasket  Front...
    $182.00
    $203.00 $182.00
    Sale
  • Balmar Pulley Kit fYanmar 4JH3TE 4JH3HTE 48YSP4JHD

    Balmar Pulley Kit f/Yanmar 4JH3-TE, 4JH3-HTE [48-YSP-4JH-D]

    Balmar

    Balmar Pulley Kit f/Yanmar 4JH3-TE, 4JH3-HTE [48-YSP-4JH-D]

    Pulley Kit for Yanmar 4JH3-TE, 4JH3-HTEAltMount®Serpentine Pulley Conversion Kit for Yanmar Diesel EnginesYanmar Engines Covered: 4JH3, -TE, -THEKit Includes: Three Ten-Groove (J10) Pulleys, Two J10, 48″ Circumference Serpentine Belts (one...
    $662.89
    $0.00 $662.89
  • Balmar Temp Sensor Alternator 54 Length MCTSA

    Balmar Temp Sensor Alternator - 54" Length [MC-TS-A]

    Balmar

    Balmar Temp Sensor Alternator - 54" Length [MC-TS-A]

    Temp Sensor Alternator - 54"Temperature Sensor, Alternator - 54" LengthThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or...
    $39.99
    $45.59 $39.99
    Sale
  • STABIL Starting Fluid 11oz Case of 6 22004CASE

    STA-BIL Starting Fluid - 11oz *Case of 6* [22004CASE]

    STA-BIL

    STA-BIL Starting Fluid - 11oz *Case of 6* [22004CASE]

    Starting Fluid - 11oz *Case of 6*STA-BIL® Starting Fluid is a special formula starting fluid with upper cylinder lube and corrosion inhibitor. STA-BIL® Starting Fluid is safe for oxygen sensors...
    $25.99
    $32.94 $25.99
    Sale
  • Camco DIY Boat Winterizer Engine Flushing System 65501

    Camco D-I-Y Boat Winterizer Engine Flushing System [65501]

    Camco

    Camco D-I-Y Boat Winterizer Engine Flushing System [65501]

    D-I-Y Boat Winterizer Engine Flushing SystemQuickly and efficiently service inboard/outboard marine engines. The Do-It-Yourself Winterizer allows flushing and preparation of boat engine for winter storage with just five gallons of...
    $43.99
    $69.99 $43.99
    Sale
  • Balmar Alternator 170 AMP Kit 12V 4 Dual Foot Saddle K6 Pulley Regulator Temp Sensor XTDF4170K6KIT

    Balmar Alternator 170 AMP Kit 12V 4" Dual Foot Saddle K6 Pulley Regulator Temp Sensor [XT-DF4-170-K6-KIT]

    Balmar

    Balmar Alternator 170 AMP Kit 12V 4" Dual Foot Saddle K6 Pulley Regulator Temp Sensor [XT-DF4-170-K6-KIT]

    170 AMP Alternator Kit - 12V 4" Dual Foot Saddle Mount with K6 Pulley, Regulator & Temp SensorBalmar offers a wide range of alternator power upgrades designed specifically for marine...
    $1,256.99
    $1,433.29 $1,256.99
    Sale
  • Balmar Alternator 170 AMP 12V 4 Dual Foot Saddle K6 Pulley XTDF4170K6

    Balmar Alternator 170 AMP 12V 4" Dual Foot Saddle K6 Pulley [XT-DF4-170-K6]

    Balmar

    Balmar Alternator 170 AMP 12V 4" Dual Foot Saddle K6 Pulley [XT-DF4-170-K6]

    Alternator 170 AMP 12V 4" Dual Foot Saddle K6 PulleyBalmar offers a wide range of alternator power upgrades designed specifically for marine industry applications. They install high-reliability bearings, robust rectifier...
    $964.99
    $1,100.00 $964.99
    Sale
  • Balmar Alternator 100 AMP 12V 12 Single Foot Spindle Mount Dual Vee Pulley wIsolated Ground 621100DV

    Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley w/Isolated Ground [621-100-DV]

    Balmar

    Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley w/Isolated Ground [621-100-DV]

    Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley with Isolated GroundAlternator, 621 Series, 100A, 12V, Spindle Mount (Single Foot), 1-2in, Dual Deep Vee Pulley, Isolated Ground...
    $704.99
    $804.69 $704.99
    Sale
  • Balmar Alternator 100 AMP Kit 12V 315 Dual Foot Saddle Dual Pulley Regulator Temp Sensor 60YPMC100DV

    Balmar Alternator 100 AMP Kit 12V 3.15" Dual Foot Saddle Dual Pulley Regulator Temp Sensor [60-YP-MC-100-DV]

    Balmar

    Balmar Alternator 100 AMP Kit 12V 3.15" Dual Foot Saddle Dual Pulley Regulator Temp Sensor [60-YP-MC-100-DV]

    Alternator 100 AMP Kit 12V 3.15" Dual Foot Saddle Dual Pulley Regulator & Temp SensorKit Includes: a 60-100-DV Alternator, MC-618 Regulator, Temperature Sensors, Mounting Hardware60-100-DV Alternator: 100A, 12V, Saddle Mount...
    $947.99
    $1,081.59 $947.99
    Sale
  • Balmar Alternator 120 AMP 12V 12 Single Foot Spindle Mount Dual Vee Pulley wIsolated Ground 621120DV

    Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley w/Isolated Ground [621-120-DV]

    Balmar

    Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley w/Isolated Ground [621-120-DV]

    Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley with Isolated GroundAlternator, 621 Series, 120A, 12V, Spindle Mount (Single Foot), 1-2in, Dual Deep Vee Pulley, Isolated Ground...
    $762.99
    $869.89 $762.99
    Sale