Aftermarket Parts
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Sierra Tune Up Kit Mc-Pc GM Sb V8 Mpi 18-5247
Sierra
$107.69 $93.99Sierra Tune Up Kit Mc-Pc GM Sb V8 Mpi 18-5247For late model V-8 (Alpha/Bravo 350 Mag; 5.0L; & MX 6.2L).- Part Number:
- 47-5247
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 898253T29
$107.69 $93.99 -
Uflex C2 Control Cable 33C
Uflex
$34.99Uflex C2 Control Cable 33C Universal 33C style control cable with brass and stainless steel 10/32 threaded end fittings. Featuring an 18 laywire conduit for enhanced efficiency, durability and longevity the C2 cables have brass end fittings. They are...- Part Number:
- NW-216C233C
- Availability:
- In Stock - Ships same or next business day.
$34.99 -
Uflex Mach-5 Mercury Control Cable
Uflex
$53.89 $41.09Uflex Mach-5 Mercury Control Cable Heavy duty 18 laywire conduit for long life & high efficiency for smooth operation and reduced bend radius. Ideal for long complex cable runs. High resistance blue outer jacket protects against abrasion, UV and...- Part Number:
- NW-216MACH5
- Availability:
- In Stock - Ships same or next business day.
$53.89 $41.09 -
Dometic SeaStar Solutions Marine Outboard Clamp Block Kit SA27055P
Seastar
$192.19 $153.99Seastar Clamp Block Kit Sa27055P Transom support mounting universal for all inboard and most outboard motor installations- Part Number:
- 1-SA27055P
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Outdoor Clamp Block - Corrosion Resistant for outboard engines
$192.19 $153.99 -
Sold Out, please call for ETA.
Martyr Anodes Anode Hull Aluminum Zhc2 Cmzhc2A
Martyr Anodes
$19.99 $15.99Martyr Anodes Anode Hull Aluminum Zhc2 Cmzhc2A Zinc: For use in salt waterAluminum: For use in brackish waterMagnesium: For use in fresh water- Part Number:
- 194-CMZHC2AA
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 5-3/4" L X 2-1/2" W x 3/4" H
- Hole:
- 2-7/8"
- Material:
- Aluminum
$19.99 $15.99 -
NGK Spark Plugs B8Hs-10 Spark Plug 5126
NGK Spark Plugs
$5.89 $4.13NGK Spark Plugs B8Hs-10 Spark Plug 5126 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life. •?Triple gasket sealing...- Part Number:
- 41-B8HS10
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 5126
- Pkg.:
- Boxed
- What's in the Box:
- 4
$5.89 $4.13 -
Seachoice ProFlo Universal Rectangular Boat Motor Flusher 18311 / 18313
Seachoice
$20.14 $15.99Seachoice 18313 ProFlo Universal Rectangular Motor FlusherRoutine flushing after every use is essential to properly maintaining your engine. Connecting to a standard garden hose, this rectangular motor flusher cleans sand, silt, salt and other...- Part Number:
- 50-18313
- Availability:
- In Stock - Ships same or next business day.
$20.14 $15.99 -
Seastar Back Mount Steering Rack No Feedback Single Package SS151
Seastar
$397.69 $298.09Seastar Back Mount Steering Rack No Feedback Single Package SS151 No FeedBack technology and incredible precision of a rack and pinion system, and engineered-in serious advances in steering comfort and control. A drop-in replacement for "The Rack"...- Part Number:
- NW-1SS151K
- Availability:
- In Stock - Ships same or next business day.
$397.69 $298.09 -
Seastar Ball Joints 30 Series Quick Re 31799001
Seastar
$25.49 $17.99Seastar Ball Joints 30 Series Quick Re 31799001- Part Number:
- 1-031799001
- Availability:
- In Stock - Ships same or next business day.
- Cable:
- 3300
- Stud:
- 7/16"
- Thread:
- 11963
$25.49 $17.99 -
Seastar Orb Fitting-Straight 2Pk Hf6009
Seastar
$40.79 $32.99Seastar Orb Fitting-Straight 2Pk Hf6009 These fittings fit updated Seastar cylinders and all helm pump to use O-Ring (ORB) type fittings. Before the update all Seastar Solutions helms used NPT fittings. These 316 stainless steel fittings will simplify...- Part Number:
- 1-HF6009
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Straight ORB fitting
- Fits:
- Helms
- Bag:
- 2
$40.79 $32.99 -
Seastar Support Rod Kit Baystr Cylindr Hp6050
Seastar
$165.09 $129.99Seastar Support Rod Kit Baystr Cylindr Hp6050- Part Number:
- 1-HP6050
- Availability:
- In Stock - Ships same or next business day.
- Type:
- Support Rod
- Description:
- Support rod for Baystar Cylinder
- Bag:
- 2
$165.09 $129.99 -
Sierra Gear Lube-Premium Qt 18-9600-2
Sierra
$15.99 $13.99Sierra Gear Lube-Premium Qt 18-9600-2- Part Number:
- 47-96002
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Quart
$15.99 $13.99 -
Sierra Marine Boat Lido 2 Fuel Gauge 65496P
Sierra
$46.99 $41.99Sierra Lido 2 Fuel Gauge 65496PFeatures include: Black graphics on a white face with chrome ring and a black pointer with fire-orange tip. Scratch resistant curved glass lens with polished stainless steel; near-flush bezel. white perimeter and red...- Part Number:
- 11-65496P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Fuel
- Dial Range:
- E-1/2-F
- Sender Code:
- 90424P
$46.99 $41.99 -
Sierra Tilt-Trim Reservoir 18-6771
Sierra
$68.39 $54.99Sierra Tilt-Trim Reservoir 18-6771- Part Number:
- 47-6771
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Mercury 18525A1
$68.39 $54.99 -
Sierra Warning Kit Oil Pressure/Temp Mp41400
Sierra
$56.79 $48.99Sierra Warning Kit Oil Pressure/Temp Mp41400Loud warning buzzer alerts operator of dangerously high engine temperatures or low engine oil pressure. Kit includes instructions; oil pressure switch; and temperature switch.- Part Number:
- 11-MP41400
- Availability:
- In Stock - Ships same or next business day.
$56.79 $48.99 -
Sierra Water Shutter-Exhaust MerCruiser #60930 18-2727
Sierra
$37.49 $28.59Sierra Water Shutter-Exhaust MerCruiser #60930 18-2727- Part Number:
- 47-2727
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 60930
$37.49 $28.59 -
Uflex Ob Hose 3' with Dbl Bend 2/Bx Kitobdbr-03'
Uflex
$174.99 $165.99Uflex Ob Hose 3' with Dbl Bend 2/Bx Kitobdbr-03' Two hoses with swaged fittings featuring bend restrictors are suitable for use with Uflex cylinders and helms. OBDBR hoses have bend restrictors on both ends. OB hoses have bend restrictors on one end...- Part Number:
- 216-KITOBDBR03
- Availability:
- In Stock - Ships same or next business day.
- Description:
- w/Bend Restrictors
- Length:
- 3'
- Box:
- 2
$174.99 $165.99 -
Centek Muffler-Vernalift 2X2 Side/Top 1500026
Centek
$405.19 $299.99Centek Muffler-Vernalift 2X2 Side/Top 1500026 Extremely 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...- Part Number:
- 383-1500026
- Availability:
- In Stock - Ships same or next business day.
- A1:
- 2
- A2:
- 2
- B:
- 2.5
- D:
- 8.36
- E:
- 4.68
- F:
- 2
$405.19 $299.99 -
Centek Vernalift Muffler 1500107
Centek
$429.09 $319.99Centek Vernalift Muffler 1500107 Extremely 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:
- 383-1500107
- Availability:
- In Stock - Ships same or next business day.
- A1:
- 2
- A2:
- 2
- B:
- 2
- D:
- 10.04
- E:
- 5.3
- F:
- 2.5
$429.09 $319.99 -
Martyr Anodes 2 Zinc Shaft Anode Cmx09
Martyr Anodes
$29.89 $24.99Martyr Anodes 2 Zinc Shaft Anode Cmx09 Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water- Part Number:
- 194-CMX09
- Availability:
- In Stock - Ships same or next business day.
- ID:
- 2"
- OD:
- 3-1/4"
- Length:
- 2-7/8"
- Material:
- Zinc
$29.89 $24.99
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.