Engine Parts & Service
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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- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
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Vendor:Regitar U.S.A.
Regitar USA Idle Air Control f/Volvo Penta OMC Engines: OMC 4.3L V6, 160-205 Hp | GM 5.0-5.7L V8, 190-280 Hp [RMS001]
- $112.99
$199.99- $112.99
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Idle Air Control for Volvo Penta & OMC Engines: OMC 4.3L V6, 160-205 Hp | GM 5.0-5.7L V8, 190-280 HpIdle Air Control for Volvo Penta and OMC Engines: OMC 4.3L V6, 160-205 Hp | GM 5.0-5.7L V8, 190-280 Hp.Engine Brand:Volvo PentaFitment:OMC 4.3L V6, 160-205...- $112.99
$199.99- $112.99
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Vendor:ARCO Marine
ARCO Marine Replacement Alternator f/Mercury Engines - 135 150 HP [20851]
- $263.99
$332.51- $263.99
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Replacement Alternator for Mercury Engines - 135 & 150 HPReplacement alternator that will fit Mercury Outboard Engines 135 HP - 150 HP, 12 Volt, 55 AMP, 4 grooves, pulley included. Features: All alternators are engineered for performance and reliability. All alternators are engineered and manufactured with...- $263.99
$332.51- $263.99
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Vendor:ARCO Marine
ARCO Marine Premium Replacement Ignition Coil f/Mercury Outboard Engines [IG002]
- $43.99
$52.74- $43.99
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Premium Replacement Ignition Coil for Mercury Outboard EnginesThis ignition coil fits 1970-2006 (6-40HP – 2 Cyl.), 1976-1997 (45-90HP – 3 Cyl.), 1976-1997 (45-125HP – 4 Cyl.), and 1976-2000 (90-225HP – 6 Cyl.) Mercury outboard engines.Replaces: MERCURY Ignition Coil 339-832757A4 MERCURY Ignition Coil 7370A8 MERCURY...- $43.99
$52.74- $43.99
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Vendor:ARCO Marine
ARCO Marine Original Equipment Quality Replacement Suzuki OMC Outboard Starter - 2004-2017 [3452]
- $254.99
$354.73- $254.99
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Original Equipment Quality Replacement Suzuki & OMC Outboard Starter - 2004-2017Replacement outboard starter that will fit 70HP-90HP, 150HP-300HP 2004-2017.ARCO advises using a fully charged battery - A weak battery can damage the starter and starter solenoid. And to also clean all connections - A...- $254.99
$354.73- $254.99
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Vendor:Star brite
Star Brite Star-Tron Diesel Enzyme Fuel Treatment - 32 oz [93132]
- $46.99
$50.99- $46.99
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Star-Tron Diesel Enzyme Fuel Treatment - 32 ozEnsures easy starts and smooth running while breaking down water and sludge for safe combustion. Designed for all diesel engines requiring fuel system cleaning and stabilization. The enzyme technology removes gum and varnish deposits while stabilizing fuel...- $46.99
$50.99- $46.99
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Vendor:STA-BIL
STA-BIL Carb Choke Parts Cleaner - 12.5oz [22005]
- $4.99
$6.99- $4.99
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Carb Choke & Parts Cleaner - 12.5ozSTA-BIL Carburetor and Choke Cleaner is formulated to dissolve gum and varnish, dirt and carbon deposits. It has a convenient spray nozzle, which comes with a direction tube to reach hard to access areas. Once clean, the engine...- $4.99
$6.99- $4.99
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Vendor:Trident Marine
Trident Marine Blue Silicone Wet Exhaust Hump w/4 T-Bolt Clamps - 6" ID x 8" Length [272V6000-S/S]
- $166.99
$259.21- $166.99
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Blue Silicone Wet Exhaust Hump with 4 T-Bolt Clamps - 6" 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...- $166.99
$259.21- $166.99
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Vendor:Star brite
Star brite Star-Tron Fuel Tank Cleaner - Concentrated Gas/Diesel Formula - 64 oz [93664]
- $38.99
$42.99- $38.99
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Star-Tron Fuel Tank Cleaner - Concentrated Gas/Diesel Formula - 64 ozCleans sludge and fuel contaminants from gasoline and diesel tanks without expensive polishing. Designed for fuel tanks requiring rejuvenation of old, stale fuel. The enzyme-based formula disperses deposits for a cost-effective alternative to professional...- $38.99
$42.99- $38.99
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Vendor:Attwood Marine
Attwood Universal Fuel Line Kit - 3/8" Diameter x 6 Length [93806ULP7]
- $37.99
$49.99- $37.99
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Universal Fuel Line Kit - 3/8" Diameter x 6' LengthThis Attwood Fuel Line Kit is a reliable universal replacement for the original equipment on any brand of engines and tanks. This kit includes a 6-foot-long, 3/8-In. diameter fuel line and a multi-layer, low-permeation primer...- $37.99
$49.99- $37.99
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Vendor:Star brite
Star brite Star-Tron Enzyme Diesel Treatment - Small Engine Formula - 8 oz [14408]
- $11.99
$13.99- $11.99
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Star-Tron Enzyme Diesel Treatment - Small Engine Formula - 8 ozImproves diesel engine starts, smoothness, and fuel economy while reducing soot and emissions. Designed for all types and sizes of diesel engines. The formula stabilizes diesel fuel for up to two years and helps...- $11.99
$13.99- $11.99
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Vendor:Balmar
Balmar Pulley Kit f/Yanmar 4JH3-TE, 4JH3-HTE [48-YSP-4JH-D]
- $689.49
$0.00- $689.49
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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 spare) & Mounting HardwareNote: If you specify an AT-200A Alternator, a longer belt length...- $689.49
$0.00- $689.49
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Vendor:Balmar
Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley w/Isolated Ground [621-100-DV]
- $702.99
$836.89- $702.99
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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 1" Motorola-Style Mounting; Typical for Westerbeke, Lehman, Hino & Pathfinder Engines 2" Delco-Style Mounting;...- $702.99
$836.89- $702.99
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Vendor:Balmar
Balmar Alternator 100 AMP Kit 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley Regulator Temp Sensor [621-VUP-MC-100-DV]
- $944.99
$1,124.89- $944.99
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Alternator 100 AMP Kit 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley Regulator & Temp SensorKIt Includes: 621-100-DV Alternator, MC-618 Regulator, Temperature Sensors, Mounting Hardware621-100-DV Alternator: 100A, 12V, Spindle Mount (Single Foot), 1-2in, Dual Deep Vee Pulley, Isolated Ground1" Motorola-Style Mounting; Typical for...- $944.99
$1,124.89- $944.99
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Vendor:Balmar
Balmar Alternator Protection Module - 48V [APM-48]
- $144.99
$164.39- $144.99
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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 disconnects Surges from solenoids, combiners, starters, and other motors. The Balmar APM excels in...- $144.99
$164.39- $144.99
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Vendor:Balmar
Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley w/Isolated Ground [621-120-DV]
- $759.99
$904.69- $759.99
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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 1" Motorola-Style Mounting; Typical for Westerbeke, Lehman, Hino & Pathfinder Engines 2" Delco-Style Mounting;...- $759.99
$904.69- $759.99
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Vendor:Balmar
Balmar Regulator Kit f/Valeo w/MC-618 [MC-618-VL-01]
- $551.99
$657.29- $551.99
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Regulator Kit for Valeo with MC-618Balmar's MC-618 Regulator communicates with the SG200 Battery Monitor to provide information to the SG200 Color Display and Smartphone App. Now you can see how the MC-618 Regulator is directing your onboard charging activity from either the SG200 2"...- $551.99
$657.29- $551.99
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Vendor:Balmar
Balmar Alternator 3.15" Dual Foot Saddle J10 Serpentine Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-DF-170-J10-KIT]
- $1,252.99
$1,490.69- $1,252.99
- Unit price
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Alternator 3.15" Dual Foot Saddle J10 Serpentine Pulley Regulator & Temp Sensor - 170A Kit - 12VBalmar offers a wide range of alternator power upgrades designed specifically for marine industry applications. Balmar installs high reliability bearings, robust rectifier diodes and improved heat-sinking capabilities on...- $1,252.99
$1,490.69- $1,252.99
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Vendor:Balmar
Balmar Universal Adjustment Arm [UAA]
- $37.99
$43.09- $37.99
- Unit price
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Universal Adjustment ArmFeatures: This part number is for the “Arm Only”, It does not come with the Belt Buddy Adjustment Mechanism The Belt Buddy Mechanism which goes with the UAA is part number BB, grouped together the set is part number UBB The Belt...- $37.99
$43.09- $37.99
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Vendor:Balmar
Balmar Belt Buddy w/Universal Adjustment Arm [UBB]
- $77.99
$88.19- $77.99
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Belt Buddy w/Universal Adjustment ArmTo utilize only the adjustment mechanism with an existing adjustment arm, purchase part number BBU.Caution: This approach sacrifices some “travel” in the existing adjustment arm so the BBU mechanism can be anchored to the arm. Make certain your alternator mounting...- $77.99
$88.19- $77.99
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Vendor:Balmar
Balmar Belt Buddy w/o Adjustment Arm [BBU]
- $54.99
$61.79- $54.99
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Belt Buddy w/o Adjustment ArmUniversal Belt Buddy Mechanism; for use with exising adjustment armsDoes not come with the Balmar Universal Adjustment Arm (UAA).Caution: This approach sacrifices some “travel” in the existing adjustment arm so the BBU mechanism can be anchored to the arm. Make...- $54.99
$61.79- $54.99
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![Regitar USA Idle Air Control f/Volvo Penta OMC Engines: OMC 4.3L V6, 160-205 Hp | GM 5.0-5.7L V8, 190-280 Hp [RMS001]](http://www.dbmarinesupplies.com/cdn/shop/files/107647XL_533x.jpg?v=1742343657)