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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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
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Vendor:Regitar U.S.A.
Regitar USA Tune-Up Kit f/GM V-8 EST Engines [RMR003]
- $30.99
$45.99- $30.99
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Tune-Up Kit for GM V-8 EST EnginesTune-Up Kit for GM V-8 EST Engines. Brochure (pdf)- $30.99
$45.99- $30.99
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Vendor:Regitar U.S.A.
Regitar USA Fuel Pump f/Mercruiser w/High-Pressure Pump [RFP010]
- $98.99
$136.77- $98.99
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Fuel Pump for Mercruiser with High-Pressure PumpFuel Pump for Mercruiser with High-Pressure Pump.Engine Brand:MercruiserFitment:GM V-8 (305, 350, 377, 496 & 502 CID) Eng. with Gen III Cool Fuel Module - High-Pressure Brochure (pdf)- $98.99
$136.77- $98.99
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Vendor:Regitar U.S.A.
Regitar USA Voltage Regulator f/Mercury [RMV001]
- $82.99
$125.00- $82.99
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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...- $82.99
$125.00- $82.99
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Vendor:Regitar U.S.A.
Regitar USA Relay f/Most Engines: 30AMP, 5 Terminal, Single Pole/Double Throw [RMZ012]
- $11.99
$18.99- $11.99
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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...- $11.99
$18.99- $11.99
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Vendor:Regitar U.S.A.
Regitar USA Rotor f/Mercruiser OMC 4 6 Cyl. Engines w/Delco Conventional Ignition [RMN003]
- $3.99
$5.10- $3.99
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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)- $3.99
$5.10- $3.99
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Vendor:Regitar U.S.A.
Regitar USA Distributor Cap f/GM V-8 Engines w/Thunderbolt IV V HEI Ignitions [RMR001]
- $30.99
$46.99- $30.99
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Distributor Cap for GM V-8 Engines with Thunderbolt IV & V HEI IgnitionsDistributor Cap for GM V-8 Engines with Thunderbolt IV & V HEI Ignitions.Engine Brand: Mercury / Mercruiser OMC Engine Brand:GM V-8 Engines with Thunderbolt IV & V HEI Ignitions Brochure (pdf)- $30.99
$46.99- $30.99
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Vendor:Regitar U.S.A.
Regitar USA Ignition Coil f/Mercury Outboards 2004 Up 75HP - 400 HP 4-Stroke EFI Verado Engines [RMF003]
- $59.99
$99.99- $59.99
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Ignition Coil for Mercury Outboards 2004 & Up 75HP - 400 HP 4-Stroke EFI & Verado EnginesIgnition Coil for Mercury outboards: 2004-UP 75HP - 400HP 4-stroke EFI and Verado engines.Engine Brand:MercuryFitment: 75 / 80 / 90 / 100 / 115 EFI (4-stroke) SN: 1B366823...- $59.99
$99.99- $59.99
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Vendor:Regitar U.S.A.
Regitar USA Tune Up Kit f/Mercruiser GM V-8 Engines w/Delco HEI [RMR011]
- $45.99
$54.99- $45.99
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Tune Up Kit for Mercruiser GM V-8 Engines with Delco HEITune Up Kit for Mercruiser GM V-8 Engines with Delco HEI. Brochure (pdf)- $45.99
$54.99- $45.99
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Vendor:Regitar U.S.A.
Regitar USA Distributor Cap f/2001 Newer MCM/MIE 5.0L, 5.7L 6.2L MPI Engines w/ECM 555 [RMR002]
- $67.99
$84.99- $67.99
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Distributor Cap for 2001 & Newer MCM/MIE 5.0L, 5.7L & 6.2L MPI Engines with ECM 555Distributor Cap for 2001 and Newer MCM/MIE 5.0L, 5.7L, and 6.2L MPI Engines with ECM 555.Engine Brand: Mercury / Mercruiser Volvo Penta Fitment:2001 & Newer MCM/MIE 5.0L, 5.7L &...- $67.99
$84.99- $67.99
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Vendor:Regitar U.S.A.
Regitar USA Distributor Cap f/2001 Newer MCM/MIE 5.0L, 5.7L 6.2L [RME009]
- $49.99
$70.99- $49.99
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Distributor Cap for 2001 & Newer MCM/MIE 5.0L, 5.7L & 6.2LDistributor Cap for 2001 & Newer MCM/MIE 5.0L, 5.7L & 6.2L MPI Engines with ECM 555.Engine Brand: Mercury / Mercruiser Volvo Penta Fitment:2001 & Newer MCM/MIE 5.0L, 5.7L & 6.2L MPI Engines With ECM...- $49.99
$70.99- $49.99
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Vendor:Regitar U.S.A.
Regitar USA Tune-Up Kit for Ford HEI Distributors [RMR013]
- $33.99
$39.99- $33.99
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Tune-Up Kit for Ford HEI DistributorsTune-Up Kit for Ford HEI Distributors. Brochure (pdf)- $33.99
$39.99- $33.99
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Vendor:Regitar U.S.A.
Regitar USA Distributor Cap f/2001 Newer MCM/MIE 5.0L, 5.7L 6.2L MPI Engines w/ECM 555 [RMR009]
- $67.99
$92.99- $67.99
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Distributor Cap for 2001 & Newer MCM/MIE 5.0L, 5.7L & 6.2L MPI Engines With ECM 555Distributor Cap for 2001 & Newer MCM/MIE 5.0L, 5.7L & 6.2L MPI Engines with ECM 555Engine Brand: Mercury / Mercruiser Volvo Penta Fitment:2001 & Newer MCM/MIE 5.0L, 5.7L &...- $67.99
$92.99- $67.99
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Vendor:Regitar U.S.A.
Regitar USA Tune-Up Kit f/Mercury Thunderbolt HEI - V-6 [RMR005]
- $26.99
$36.99- $26.99
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Tune-Up Kit for Mercury Thunderbolt HEI - V-6Tune-Up Kit for Mercury Thunderbolt HEI - V-6. Brochure (pdf)- $26.99
$36.99- $26.99
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Vendor:ARCO Marine
ARCO Marine Zeus A8000-48V 8kW J180 4" Alternator w/Isolated Ground [4603]
- $2,143.90
$2,528.90- $2,143.90
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Zeus A8000-48V 8kW J180 4" Alternator with Isolated GroundThe ARCO Zeus A8000-48V alternator turns on at lower RPMs, runs cooler, and provides more power than other 48V alternators that are larger and heavier. This alternator continuously generates over 3kW (55 Amps)at 2,500 RPM and...- $2,143.90
$2,528.90- $2,143.90
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Vendor:Balmar
Balmar Pulley Kit f/Yanmar 6LY, 6LYA-STP, 6LY2-STP [48-YSP-6LY-A]
- $855.99
$0.00- $855.99
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Pulley Kit for Yanmar 6LY, 6LYA-STP, 6LY2-STPAltMount® Serpentine Pulley Conversion Kit for Yanmar Diesel EnginesYanmar Engines Covered: 6LY, 6LYA-STP, 6LY2-STPKit Includes: Three Ten-Groove (J10) Pulleys, Two J10, 55″ Circumference Serpentine Belts (one spare) & Mounting HardwareNote: If you specify an AT-200A Alternator, a longer...- $855.99
$0.00- $855.99
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Vendor:Balmar
Balmar 95 Series Alternator Pully, Altmount [48-AM-39]
- $112.99
$129.69- $112.99
- Unit price
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95 Series Alternator Pully, Altmount®AltMount® Serpentine PulleyTen-Groove (J10) Serpentine Pulley for 95-Series Alternators2.7″ Diameter, 0.875″ BoreThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.- $112.99
$129.69- $112.99
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Vendor:Balmar
Barlmar Pulley Kit f/Yanmar 4LH-A [48-YSP-4LH-A]
- $689.49
$0.00- $689.49
- Unit price
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Pulley Kit for Yanmar 4LH-AAltMount®Serpentine Pulley Conversion Kit for Yanmar Diesel EnginesYanmar Engines Covered: 4LH-AKit Includes: Three Ten-Groove (J10) Pulleys, Two J10, 47″ Circumference Serpentine Belts (one spare) & Mounting HardwareNote: If you specify an AT-200A Alternator, a longer belt length may be required.This...- $689.49
$0.00- $689.49
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Vendor:Balmar
Balmar Lehman Serp Pulley Kit [48-FSP-100]
- $855.99
$0.00- $855.99
- Unit price
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Lehman Serp Pulley KitAltMount®Serpentine Pulley Conversion Kit for Ford/Lehman EnginesFord/Lehman Engines Covered: FL80, FL120Kit Includes: Three Ten-Groove (J10) Pulleys, Two J10, 55" Circumference Serpentine Belts (one spare)Note: If you specify an AT-200A Alternator, a longer belt length may be required. This product may not be...- $855.99
$0.00- $855.99
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Vendor:Trident Marine
Trident Marine 1-1/2" Ocean-Flex Multipurpose Hose - Sold by the Foot [321-1126-FT]
- $26.99
$29.99- $26.99
- Unit price
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1-1/2" Ocean-Flex Multipurpose Hose - Sold by the FootThis unique marine hose can be used for a multitude of applications for both Commercial and Recreational Vessels including Fuel Fill, Feed, and Vent (Diesel & Gasoline – Type A1), Lube Oil, Wet Exhaust, Water (Vital...- $26.99
$29.99- $26.99
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Vendor:Trident Marine
Trident Marine 6" Fiberglass Exhaust Tubing Connector [260-6001]
- $68.99
$106.31- $68.99
- Unit price
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6" Fiberglass Exhaust Tubing ConnectorThe fiberglass connectors are corrosion-resistant high-temperature exhaust tubes designed specifically to minimize exhaust gas and cooling water flow restrictions on wet exhaust systems. Precise outside diameters facilitate perfect connections between sections of tubing and flexible elbows, bellows, or hoses. Meets...- $68.99
$106.31- $68.99
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![Regitar USA Voltage Regulator f/Mercury [RMV001]](http://www.dbmarinesupplies.com/cdn/shop/files/107651XL_533x.jpg?v=1742343699)
![Regitar USA Relay f/Most Engines: 30AMP, 5 Terminal, Single Pole/Double Throw [RMZ012]](http://www.dbmarinesupplies.com/cdn/shop/files/107656XL_533x.jpg?v=1742343755)
![Regitar USA Ignition Coil f/Mercury Outboards 2004 Up 75HP - 400 HP 4-Stroke EFI Verado Engines [RMF003]](http://www.dbmarinesupplies.com/cdn/shop/files/107502XL_533x.jpg?v=1742343042)
![Regitar USA Distributor Cap f/2001 Newer MCM/MIE 5.0L, 5.7L 6.2L [RME009]](http://www.dbmarinesupplies.com/cdn/shop/files/107489XL_533x.jpg?v=1742342954)
![ARCO Marine Zeus A8000-48V 8kW J180 4" Alternator w/Isolated Ground [4603]](http://www.dbmarinesupplies.com/cdn/shop/files/108031XL_533x.jpg?v=1741301988)