Aftermarket Parts
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Sierra Wire Set GM 3.0L Delco Est 18-8833-1
Sierra
$58.79 $44.84Sierra Wire Set GM 3.0L Delco Est 18-8833-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine performancePremium...- Part Number:
- 47-88331
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercruiser - 3.0LX - 4 cylinder - Delco EST ignition
$58.79 $44.84 -
Sierra Wire Set MerCruiser 3.7L L4 18-8808-2
Sierra
$74.59 $59.60Sierra Wire Set MerCruiser 3.7L L4 18-8808-2Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine performancePremium...- Part Number:
- 47-88082
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercruiser - 224 - 3.7L & 3.7XL - 4 cylinder - conventional ignition
$74.59 $59.60 -
Sierra Wire Set MerCruiser Black Scorpion 18-8822-1
Sierra
$83.69 $81.40Sierra Wire Set MerCruiser Black Scorpion 18-8822-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine...- Part Number:
- 47-88221
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercruiser - Black Scorpion SKI - Gen+ - 350 - MX 6.2 Black Scorpion SKI - 8 cylinder - Delco HEI ignition
$83.69 $81.40 -
STA-BIL Marine Formula (8 oz) Ethanol Treatment 22239
STA-BIL
$15.49 $10.99STA-BIL Marine Formula 8oz 22239 Ethanol Treatment & Performance Improver Extra corrosion protection & fuel system cleaning Recommended to be used at every fill up, not just for seasonal storage Double the corrosion preventers than in...- Part Number:
- 269-22239
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 8 oz.
- Treats:
- 80 gal.
$15.49 $10.99 -
Uflex Hose Kt-Svs with 2Bd Rst 2.5' 2/B Kitobdbrsvs25
Uflex
$186.99 $151.95Uflex Hose Kt-Svs with 2Bd Rst 2.5' 2/B Kitobdbrsvs25These short hoses are ideal for multiple cylinder/multiple engine installations as well as autopilot installations where short hydraulic lines are required and pressure will not exceed 1500 psi. They...- Part Number:
- 216-KITOBDBRSVS25
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 2-1/2'
- Box:
- 2
$186.99 $151.95 -
Uflex Single Lever/Single Function Side Mt B35
Uflex
$208.89 $169.99Uflex Single Lever/Single Function Side Mt B35 Side mount control features a stainless lever and flange with adjustable brake tension release and detents. Flush side mt. installation is particularly suitable for throttle control or hydraulic shift...- Part Number:
- 216-B35
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Single lever/single function
$208.89 $169.99 -
Uflex Steering Wheel Black Poly Chrome Morosini U/Ch/B
Uflex
$257.79 $185.08Uflex Steering Wheel Black Poly Chrome Morosini U/Ch/B3 spokeFits standard 3/4" tapered shaftHub included- Part Number:
- 216-MOROSINIUCHB
- Availability:
- In Stock - Ships same or next business day.
- Grip:
- Polyurethane w/ chrome hub
- Color:
- Black
- Dia.:
- 13.8"
$257.79 $185.08 -
Attwood Marine Fuel Kitforce6'X3/8Usc 93806Fus7
Attwood Marine
$74.99 $48.46Attwood Marine Fuel Kitforce6'X3/8Usc 93806Fus7EPA COMPLIANTFuel kit with multi-layer primer bulb and universal sprayless connector. Ethanol compatible. EPA certified compliant hose. Attwood universal sprayless connector prevents fuel spray when...- Part Number:
- 23-93806FUS7
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Force
- Size:
- 3/8" x 6'
$74.99 $48.46 -
On Sale
Attwood Marine Fuel Line Splice Kit 3/8 11822-6
Attwood Marine
$13.79 $7.06Attwood Marine Fuel Line Splice Kit 3/8 11822-6Kit includes brass hose mender and 2 stainless steel hose clamps.NOT TO BE USED IN POTABLE WATER SYSTEMS.- Part Number:
- 23-118226
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3/8"
$13.79 $7.06 -
Attwood Marine Fuel Tank Fitting Merc 3/8" 14534-6
Attwood Marine
$23.59 $14.99Attwood Marine Fuel Tank Fitting Merc 3/8" 14534-6 Attwood fuel tank fittings and hose fittings are suitable for use with leaded, unleaded, ethanol blended and alcohol-blended fuels. Clamps are not included. Use thread sealant tape on all threads.LP=...- Part Number:
- 23-145346
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose Fitting Twist-Lock - Female
- Fits:
- 88926 - 145076 - 145306
- Material:
- Die cast Zinc/ Brass
- Thread:
- -
- Hose:
- 3/8" ID
- OEM #:
- -
$23.59 $14.99 -
Attwood Marine Fuel/Oil Mixing Bottle 11873-1
Attwood Marine
$12.99 $3.74Attwood Marine Fuel/Oil Mixing Bottle 11873-1Allows the addition of the exact amount of oil required for a 2 cycle engineOil level marks are in gallons and litersDetermines ratios for 100:1, 50:1, 24:1, and 10:1 mixesWide mouth, quart size bottle- Part Number:
- 23-118731
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Quart
$12.99 $3.74 -
Attwood Marine Motor Flusher 16205-2
Attwood Marine
$15.79 $8.99Attwood Marine Motor Flusher 16205-2 Quickly flushes away salt, sand, silt and alkali to prevent clogging and corrosion. The flusher attaches easily to an ordinary garden hose. Reinforced polypropylene. self-ajusting clamping yoke fits most domestic or...- Part Number:
- 23-162052
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Round with metal body
$15.79 $8.99 -
Centek Elbow - 90 Degree 1.5" 1200202
Centek
$89.39 $67.37Centek Elbow - 90 Degree 1.5" 1200202These fittings are made of the same fiberglass and fire retardant resins used to make Vernatube. Fittings, couplings and elbows are lightweight, strong, non-corroding and durable.- Part Number:
- 383-1200202
- Availability:
- In Stock - Ships same or next business day.
- OD:
- 1-1/2"
- Length:
- 5-1/8"
$89.39 $67.37 -
Centek Gen-Sep 2 x 2 X 1.5 1020200
Centek
$710.19 $580.38Centek Gen-Sep 2 x 2 X 1.5 1020200Use in conjunction with a Vernalift muffler on generator sets. The water drain from the Gen-Sep&trade, can be located below the water line to eliminate irritating water splash during overnight moorings. For diesel...- Part Number:
- 383-1020200
- Availability:
- In Stock - Ships same or next business day.
- Ports:
- 2"
- Water Drain:
- 1-1/2"
- Height:
- 15-5/8"
- Width:
- 12-3/8"
$710.19 $580.38 -
Centek Muffler-Minimax 4X4 1050400
Centek
$477.29 $349.99Centek Muffler-Minimax 4X4 1050400 For use where there is a shortage of space or V Drive applications. For Gas/Diesel fuel type. For above the waterline only.- Part Number:
- 383-1050400
- Availability:
- In Stock - Ships same or next business day.
- Ports:
- 4"
- Dia.:
- 8.38"
- Length:
- 16.75"
$477.29 $349.99 -
Centek Vernalift 2" Ti/To 6X6 1500008
Centek
$357.39 $258.47Centek Vernalift 2" Ti/To 6X6 1500008Extremely effective in reducing engine exhaust noise and preventing water from returning to the engine. High strength design provides a significant safety margin over other existing fiberglass lift mufflers. For...- Part Number:
- 383-1500008
- Availability:
- In Stock - Ships same or next business day.
- A1:
- 2
- A2:
- 2
- B:
- 2
- D:
- 6.35
- F:
- 1.5
- H:
- 6.13
$357.39 $258.47 -
CRC Silicone 12oz (Net Wt/9oz 6077
CRC
$14.69 $9.99CRC Silicone 12oz (Net Wt/9oz 6077 Clean, odorless, non-staining film. Highly water resistant. Fights corrosion. Lubricates wood, nylon, rubber, metals, canvas and leather. Eliminates squeaking and binding. Lubricates from -40°F to 400°F.- Part Number:
- 77-06077
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 9 oz.
$14.69 $9.99 -
CRC W-Fuel Stabilizer 8oz 6161
CRC
$16.29 $9.35CRC W-Fuel Stabilizer 8oz 6161 For all 2 and 4 cycle engines. Prevents fuel separation caused by ethanol. Keeps fuel fresh during storage, protects against corrosion, prevents gum and resin build-up, keeps filters and injectors clean. Non-staining.- Part Number:
- 77-06161
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 8 oz.
- Treats:
- 40 gal.
$16.29 $9.35 -
Faria Marine Boat Dress White 4" Tachometer - 7000 RPM (Gas) (All Outboards) 33104
Faria
$150.19 $109.99Faria Dress White 4" Tachometer - 7000 RPM (Gas) (All Outboards) Perimeter-lighted White dial with bold Black graphics, White aluminum bezel, contoured Black pointer and flat glass lens. Electronic...- Part Number:
- 678-33104
- Availability:
- In Stock - Ships same or next business day.
$150.19 $109.99 -
Jabsco Cooling Pump V8-375 Hp 7420-1001
Jabsco
$1,032.89 $774.99Jabsco Cooling Pump V8-375 Hp 7420-1001 Mid-size pump with vertical oriented ports. Self-priming to 10 ft vertical lift Full thickness cam, mechanical seal, short stainless steel shaft Neoprene impeller; Marine engine cooling for engine...- Part Number:
- 6-74201001
- Availability:
- In Stock - Ships same or next business day.
- GPM:
- 62 @1750rpm
$1,032.89 $774.99
Aftermarket Boat Parts & Marine Engine Supplies
Looking for dependable aftermarket boat parts? PowerBoatSupply.com carries a wide selection of aftermarket marine parts, engine supplies, oils, fuel components, steering parts, anodes, tools, and maintenance essentials for boat owners and marine professionals.
Whether you're handling routine service, replacing worn components, or stocking up for the season, our aftermarket parts selection helps keep your boat running smoothly and reliably.
Marine Engine Parts & Maintenance Essentials
Keep your motor protected and performing with key maintenance categories like engine parts, motor oil, marine oil systems and accessories, and lubricants, fluids and sealants.
- Engine Parts – Replacement components for service and repair
- Motor Oil – Marine-grade oils for routine maintenance
- Oil Systems & Accessories – Helpful products for oil changes and upkeep
- Lubricants, Fluids & Sealants – Protect, seal, and maintain marine systems
Fuel, Steering & Control Parts
Reliable fuel delivery and responsive steering are critical on the water. Browse marine fuel parts and steering and controls to help maintain safer handling, smoother operation, and dependable performance.
- Fuel Parts – Components for reliable fuel system performance
- Steering & Controls – Parts that help improve control and handling
- Engine Instruments – Monitor key systems while underway
- Engine Tools – Tools for maintenance, repair, and service work
Anodes, Instruments & Service Tools
Small parts can make a big difference in long-term protection and performance. Shop marine anodes, engine instruments, and engine tools to help protect your boat, monitor performance, and complete service work more efficiently.
- Anodes – Help protect metal components from corrosion
- Engine Instruments – Gauges and monitoring products for marine engines
- Engine Tools – Service tools for DIY boaters and marine technicians
- Maintenance Supplies – Everyday essentials for seasonal upkeep
Yamaha Oil Change Kits & Routine Service Products
Staying ahead of routine service is one of the best ways to protect your investment. PowerBoatSupply.com also carries Yamaha oil change kits and other service products that make maintenance easier and more convenient.
- Oil Change Kits – Convenient service kits for scheduled maintenance
- Marine Oils – Protect engines under real boating conditions
- Sealants & Fluids – Support repairs, installs, and regular service
- Tools & Accessories – Make maintenance faster and cleaner
Why Buy Aftermarket Marine Parts from PowerBoatSupply.com?
PowerBoatSupply.com helps boat owners find reliable parts and maintenance products without the guesswork. From routine oil service to engine repair, fuel system work, corrosion protection, and steering maintenance, our aftermarket category is built to support the jobs boaters handle every season.
- Wide selection of aftermarket boat parts and marine supplies
- Products for DIY boat owners and marine professionals
- Helpful categories for seasonal service and repairs
- Fast shipping and dependable support
Shop aftermarket boat parts today and get the engine parts, oils, fuel components, steering supplies, anodes, tools, and maintenance products you need to keep your boat ready for the water.