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
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- Date, old to new
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Vendor:STA-BIL
STA-BIL Diesel Formula Fuel Stabilizer Performance Improver - 32oz *Case of 4* [22254CASE]
- $120.00
$161.89- $120.00
- Unit price
- / per
Diesel Formula Fuel Stabilizer & Performance Improver - 32oz *Case of 4*STA-BIL Diesel Formula Fuel Stabilizer is a diesel additive that keeps fuel fresh for quick, easy starts and maximized for engine performance. Designed for use with all diesel engines, and all diesel fuels,...- $120.00
$161.89- $120.00
- Unit price
- / per
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Vendor:STA-BIL
STA-BIL Diesel Formula Fuel Stabilizer Performance Improver - 32oz [22254]
- $33.24
$44.81- $33.24
- Unit price
- / per
Diesel Formula Fuel Stabilizer & Performance Improver - 32ozSTA-BIL Diesel Formula Fuel Stabilizer is a diesel additive that keeps fuel fresh for quick, easy starts and maximized for engine performance. Designed for use with all diesel engines, and all diesel fuels, Sta-Bil Fuel Stabilizer...- $33.24
$44.81- $33.24
- Unit price
- / per
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Vendor:Attwood Marine
Attwood Mercury Fuel Line Kit - 3/8" Dia. x 6 Length w/Fuel Demand Valve [93806MUSD7]
- $112.77
$148.92- $112.77
- Unit price
- / per
Mercury Fuel Line Kit - 3/8" Dia. x 6' Length with Fuel Demand ValveThis EPA-certified Attwood Mercury Fuel Line Kit reliably delivers fuel to your Mercury engine and provides the ultimate in performance, safety, and value. The kit comes with a 6-foot-long, 3/8-inch diameter...- $112.77
$148.92- $112.77
- Unit price
- / per
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Vendor:Attwood Marine
Attwood Johnson/Evinrude/OMC Female Hose Fitting - Tank Or Engine End - 5/16" Barb [88FHE516-6]
- $10.11
$0.00- $10.11
- Unit price
- / per
Johnson/Evinrude/OMC (Outboard Marine Corporation) Female Hose Fitting - Tank Or Engine End - 5/16" 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...- $10.11
$0.00- $10.11
- Unit price
- / per
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Vendor:ARCO Marine
ARCO Marine Original Equipment Quality Replacement Tilt Trim Motor f/Early Model Yamaha - 3 Wire, 3-Bolt Mount [6267]
- $454.01
$588.11- $454.01
- Unit price
- / per
Original Equipment Quality Replacement Tilt Trim Motor for Early Model Yamaha - 3 Wire, 3-Bolt MountReplacement tilt trim motor that will fit Yamaha Early 70, 90,115,150-200 HP, 3-wire connection, 3-bolt mount, Ring Terminal Ends, 4-mm thick shaft blade with 68.3-mm mounting collar. Includes O-ring. ARCO...- $454.01
$588.11- $454.01
- Unit price
- / per
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Vendor:Balmar
Balmar Pulley Kit f/Yanmar 2GM20-F, 3GM30-F, 3GM-F [48-YSP-3GM-B]
- $996.97
$0.00- $996.97
- Unit price
- / per
Pulley Kit for Yanmar 2GM20-F, 3GM30-F, 3GM-FAltMount® Serpentine Pulley Conversion Kit for Yanmar Diesel EnginesYanmar Engines Covered: 3GM30-F, 3GM-FKit Includes: Three Ten-Groove (J10) Pulleys, Two J10, 40″ Circumference Serpentine Belts (one spare) & Mounting HardwareNote: If you specify an AT-200A Alternator, a longer belt length...- $996.97
$0.00- $996.97
- Unit price
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Vendor:Flushmaster
Flushmaster Flush Port Reroute Dual Outlet - White Acrylic Plate - Horizontal - 1/2' Barb [SM-QCR2WH12]
- $302.20
$0.00- $302.20
- Unit price
- / per
Flush Port Reroute Dual Outlet - White Acrylic Plate - Horizontal - 1/2' BarbFlush your outboards safely from inside the boat — no more leaning over the transom.Specifications: Flush Capacity: Sequentially flushes 1–4 engines in a single cycle when paired with a controller. Materials:...- $302.20
$0.00- $302.20
- Unit price
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Vendor:Flushmaster
Flushmaster Flush Port Quick Connect f/Suzuki Outboards [SM-FMQCS]
- $115.66
$0.00- $115.66
- Unit price
- / per
Flush Port Quick Connect for Suzuki OutboardsStop screwing around. Flush Port Quick Connects for Suzuki outboards provide a simple, secure solution for efficient engine flushing. Designed as a permanent replacement for the OEM flush port, they ensure leak-free performance and easy installation.Upgrade Your Suzuki...- $115.66
$0.00- $115.66
- Unit price
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Vendor:Balmar
Balmar Alternator 250 AMP 12V 3.15" Dual Foot Saddle J10 Pulley [XT-DF-250-J10]
- $1,706.21
$2,030.10- $1,706.21
- Unit price
- / per
Alternator 250 AMP 12V 3.15" Dual Foot Saddle J10 PulleyAlternator, XT Series, 250A, 12V, Saddle Mount (Dual Foot), 3.15in, J10 AltMount Serpentine Pulley, Case GroundHitachi-Style Mounting; Typical for Yanmar, Westerbeke, Lehman & Perkins-Sabre EnginesReplaces: AT-DF-200-12-IG, AT-DF-200-J10This product may not be returned to the original...- $1,706.21
$2,030.10- $1,706.21
- Unit price
- / per
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Vendor:Balmar
Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount K6 Pulley w/Isolated Ground [621-100-K6]
- $1,016.49
$1,210.10- $1,016.49
- Unit price
- / per
Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount K6 Pulley with Isolated GroundAlternator, 621 Series, 100A, 12V, Spindle Mount (Single Foot), 1-2in, K6 Serpentine Pulley, Isolated Ground 1" Motorola-Style Mounting; Typical for Westerbeke, Lehman, Hino & Pathfinder Engines 2" Delco-Style Mounting; Typical for...- $1,016.49
$1,210.10- $1,016.49
- Unit price
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Vendor:Balmar
Balmar Alternator Protection Module APM24 - 24V [APM-24]
- $140.24
$159.47- $140.24
- Unit price
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Alternator Protection Module APM24 - 24VAlternators can be subjected to voltage spikes caused by lithium battery shutdowns, intermittent connections, and other over-voltage events. Balmar has introduced a robust Alternator Protection Module which helps to protect the alternator’s diodes and internal voltage regulator against spikes...- $140.24
$159.47- $140.24
- Unit price
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Vendor:Balmar
Balmar 621 Series 120A Kit w/MC-618 Regulator, T-Sensor, K6 Pulley, Single Foot Mounting Hardware [621-VUP-MC-120-K6]
- $1,480.64
$1,763.18- $1,480.64
- Unit price
- / per
621 Series 120A Kit with MC-618 Regulator, T-Sensor, K6 Pulley, Single Foot & Mounting HardwareKit Includes: 621-120-K6 Alternator MC-618 Regulator Temperature Sensors Mounting Hardware 621-120-K6 Alternator: 120A, 12V, Spindle Mount (Single Foot), 1-2in, K6 Serpentine Pulley, Isolated Ground1" Motorola-Style Mounting; Typical for Westerbeke, Lehman,...- $1,480.64
$1,763.18- $1,480.64
- Unit price
- / per
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Vendor:Balmar
Balmar Alternator 1-2" Single Foot J10 Serpentine Pulley - 170A - 12V [XT-SF-170-J10]
- $1,390.99
$1,654.15- $1,390.99
- Unit price
- / per
Alternator 1-2" Single Foot J10 Serpentine Pulley - 170A - 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 all our alternators to ensure improved...- $1,390.99
$1,654.15- $1,390.99
- Unit price
- / per
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Vendor:Balmar
Balmar Alternator 1-2" Single Foot K6 Serpentine Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-SF-170-K6-KIT]
- $1,811.76
$2,155.46- $1,811.76
- Unit price
- / per
Alternator 1-2" Single Foot K6 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 all our...- $1,811.76
$2,155.46- $1,811.76
- Unit price
- / per
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Vendor:Balmar
Balmar Temperature Sensor Alternator - 80" Length [MC-TS-A80]
- $63.61
$73.44- $63.61
- Unit price
- / per
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 purchase. Please contact the manufacturer directly with any issues or concerns.- $63.61
$73.44- $63.61
- Unit price
- / per
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Vendor:Balmar
Balmar Temp Sensor Battery - 30 [MC-TS-B30]
- $83.85
$95.71- $83.85
- Unit price
- / per
Temp Sensor Battery - 30'Temperature Sensor, Battery - 30' LengthThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.This product may not be returned to the original point of purchase. Please contact...- $83.85
$95.71- $83.85
- Unit price
- / per
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Vendor:Balmar
Balmar Centerfielder II 12/24V w/Wires - 2 Engines, 1 Bank [CFII-12/24]
- $331.11
$393.57- $331.11
- Unit price
- / per
Centerfielder II 12/24V with Wires - 2 Engines, 1 BankCenterfielder II, 12/24V, with WiresFor Managing Twin Engine Charging to a Single Battery BankThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns....- $331.11
$393.57- $331.11
- Unit price
- / per
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Vendor:Trident Marine
Trident Marine 2" Extra-Flex Corrugated Marine Wet Exhaust Hose - Sold by the Foot [252F-2006-FT]
- $37.58
$43.36- $37.58
- Unit price
- / per
2" Extra-Flex Corrugated Marine Wet Exhaust Hose - Sold by the FootTrident 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...- $37.58
$43.36- $37.58
- Unit price
- / per
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Vendor:Balmar
Balmar Temp Sensor Battery - 20 [MC-TS-B]
- $75.17
$86.16- $75.17
- Unit price
- / per
Temp Sensor Battery - 20'Temperature Sensor, Battery - 20' LengthThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.- $75.17
$86.16- $75.17
- Unit price
- / per
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Vendor:Regitar U.S.A.
Regitar USA Idle Air Control f/Volvo Penta 4.3L 6-cyl | 7.4-8.1L V8 GM Volvo OS Gasoline Engines [RMS002]
- $154.70
$238.57- $154.70
- Unit price
- / per
Idle Air Control for Volvo Penta 4.3L 6-cyl | 7.4-8.1L V8 GM & Volvo OS Gasoline EnginesIdle Air Control for Volvo Penta 4.3L 6-cyl | 7.4-8.1L V8 GM & Volvo OS gasoline engines.Engine Brand:Volvo PentaFitment:Volvo Penta 4.3L 6-cyl | 7.4-8.1L V8 GM & Volvo...- $154.70
$238.57- $154.70
- Unit price
- / per


![ARCO Marine Original Equipment Quality Replacement Tilt Trim Motor f/Early Model Yamaha - 3 Wire, 3-Bolt Mount [6267]](http://www.dbmarinesupplies.com/cdn/shop/files/99000XL_533x.jpg?v=1682839699)
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![Trident Marine 2" Extra-Flex Corrugated Marine Wet Exhaust Hose - Sold by the Foot [252F-2006-FT]](http://www.dbmarinesupplies.com/cdn/shop/files/107182XL_533x.jpg?v=1737054041)
![Regitar USA Idle Air Control f/Volvo Penta 4.3L 6-cyl | 7.4-8.1L V8 GM Volvo OS Gasoline Engines [RMS002]](http://www.dbmarinesupplies.com/cdn/shop/files/107648XL_533x.jpg?v=1742343667)