Aftermarket Parts
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NGK Spark Plugs 4495 Spark Plug 4495
NGK Spark Plugs
$20.09 $10.81NGK Spark Plugs 4495 Spark Plug 4495 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BPZ8HN10
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 4495
- Pkg.:
- Boxed
$20.09 $10.81 -
Seastar Bleed Nipple Caps @12 Hp6044
Seastar
$39.59 $31.02Seastar Bleed Nipple Caps @12 Hp6044- Part Number:
- 1-HP6044
- Availability:
- In Stock - Ships same or next business day.
- Type:
- Bleed Nipple Soft cap
- Description:
- Bleed nipple caps for all Seastar Cylinders
- Bag:
- 12
$39.59 $31.02 -
Sierra Drain Plug No Mag Honda-MerCruiser 18-2244
Sierra
$5.49 $4.84Sierra Drain Plug No Mag Honda-MerCruiser 18-2244- Part Number:
- 47-2244
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- Mercury/Mercruiser #1/MR/R/Alpha/Alpha I Gen II upper & lower units. OEM #10-79953A2 - Q2
- Drain Screw:
- Drain Screw
$5.49 $4.84 -
Sierra Fuel Sender Gasket 64082
Sierra
$9.79 $7.34Sierra Fuel Sender Gasket 64082- Part Number:
- 11-64082
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Replacement Gasket
$9.79 $7.34 -
Sierra Mercury O/B Carburetor Kit 18-7021
Sierra
$28.09 $23.11Sierra Mercury O/B Carburetor Kit 18-7021- Part Number:
- 47-7021
- Availability:
- In Stock - Ships same or next business day.
$28.09 $23.11 -
Sierra Tune-Up Kit W/Cap Delco 4 Cylinder 18-5268
Sierra
$58.59 $43.99Sierra Tune-Up Kit W/Cap Delco 4 Cylinder 18-5268Contains: Contact set; condenser; distributor cap and rotor.- Part Number:
- 47-5268
- Availability:
- In Stock - Ships same or next business day.
- Description:
- 4 cyl. Single Point
$58.59 $43.99 -
Attwood Marine Repl Cover&Retainer F/1670 Black 911526-1
Attwood Marine
$13.94 $6.65Attwood Marine Repl Cover&Retainer F/1670 Black 911526-1- Part Number:
- 23-9115261
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Replacement Cover f/1670 - Black
$13.94 $6.65 -
Centek Elbow - 90 Degree 3" 1200171
Centek
$141.39 $104.53Centek Elbow - 90 Degree 3" 1200171 These fittings are made of the same fiberglass and fire retardant resins used to make Vernatube. Fittings, couplings and elbows are lightweight, strong,...- Part Number:
- 383-1200171
- Availability:
- In Stock - Ships same or next business day.
- OD:
- 3"
- Length:
- 7-1/2"
$141.39 $104.53 -
Martyr Anodes Rudder Anode Set 1 7/8" Dia. Cmr01S
Martyr Anodes
$7.69 $4.47Martyr Anodes Rudder Anode Set 1 7/8" Dia. Cmr01S Streamlined rudder anodes include combination fasteners.Slotted hardware. Zinc for salt water.- Part Number:
- 194-CMR01S
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 1-7/8" dia.
- Material:
- Zinc
$7.69 $4.47 -
NGK Spark Plugs Bp8Hs-10 Spark Plug 3823
NGK Spark Plugs
$6.49 $4.49NGK Spark Plugs Bp8Hs-10 Spark Plug 3823 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BP8HS10
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 3823
- Pkg.:
- Boxed
- What's in the Box:
- (1) Spark Plug
$6.49 $4.49 -
NGK Spark Plugs Br9Es Spark Plug 5722
NGK Spark Plugs
$6.62 $4.10NGK Spark Plugs Br9Es Spark Plug 5722 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-5722
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- BR9ES
$6.62 $4.10 -
Racor Air Filter-Replacement For Raccv6000 Ccv5527408
Racor
$115.99 $84.99Racor Air Filter-Replacement For Raccv6000 Ccv5527408 Filters for CCV system.- Part Number:
- 62-CCV5527408
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- CCV6000
- Element:
- High density
$115.99 $84.99 -
Seastar Ball Joint For Tiebar 1/2 SS Hp6003
Seastar
$194.99 $114.99Seastar Ball Joint For Tiebar 1/2 SS Hp6003- Part Number:
- 1-HP6003
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Ball joint for tiebar - 1/2" SST
$194.99 $114.99 -
Seastar Front Mount Hydraulic Steering Cylinder Seal Kit Without Wrench Hs5167
Seastar
$179.69 $160.99Seastar Seal Kit All F/M Cylinder without Tool Hs5167 Front Mount Hydraulic Steering Cylinder Seal Kit, Without Wrench Replacement front seal kit for SeaStar pivot / front mount cylinders Kit...- Part Number:
- 1-HS5167
- Availability:
- In Stock - Ships same or next business day.
$179.69 $160.99 -
Sierra C-Gimbal Bearng 30-879194A01 18-21006
Sierra
$166.59 $96.05Sierra C-Gimbal Bearng 30-879194A01 18-21006Refer to the Sierra catalog for complete application information.- Part Number:
- 47-21006
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- Mercruiser Stern Drives
- Replaces:
- 30-879194A01
$166.59 $96.05 -
Sierra Carb Kit MerCruiser #1395-811223 1 18-7211-1
Sierra
$14.09 $10.63Sierra Carb Kit MerCruiser #1395-811223 1 18-7211-1- Part Number:
- 47-72111
- Availability:
- In Stock - Ships same or next business day.
$14.09 $10.63 -
Sierra Tool Shift Cable MerCruiser #91-12427 18-9807
Sierra
$15.19 $13.99Sierra Tool Shift Cable MerCruiser #91-12427 18-9807Attaches over the shift cable; used for select Bravo drive unit shift cable adjustments at the shift plate.See Sierra's catalog for specific...- Part Number:
- 47-9807
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Mercury 91-12427
$15.19 $13.99 -
Uflex C2 Control Cable 33C
Uflex
$38.29 $35.04Uflex 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...- Part Number:
- NW-216C233C
- Availability:
- In Stock - Ships same or next business day.
$38.29 $35.04 -
Uflex Control Cable Merc Gen II C36
Uflex
$33.78Uflex Control Cable Merc Gen II C36 Heavy duty 18 laywire conduit for long life & high efficiency. For Mercury® and Mercruiser® engines and Mercury® Generation II&trade, series controls. Stroke: 3.3"...- Part Number:
- NW-216C36
- Availability:
- In Stock - Ships same or next business day.
$33.78 -
Attwood Marine OMC Female Tankfitting Lp 8889Lp6
Attwood Marine
$7.84 $6.18Attwood Marine OMC Female Tankfitting Lp 8889Lp6 Attwood fuel tank fittings and hose fittings are suitable for use with leaded, unleaded, ethanol blended and alcohol-blended fuels. Clamps are not...- Part Number:
- 23-8889LP6
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose Fitting - Female
- Fits:
- 88836
- Material:
- Molded acetal
- Thread:
- -
- Hose:
- 3/8" ID
- OEM #:
- OMC 176445 3/8"
$7.84 $6.18
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.