Aftermarket Parts
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Sierra Thermostat Kit-160Deg MerCruiser #807252Q 5 18-3647
Sierra
$42.99 $34.99Sierra Thermostat Kit-160Deg MerCruiser #807252Q 5 18-3647- Part Number:
- 47-3647
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 807252Q5
$42.99 $34.99 -
Jabsco Impeller Neoprene 189480001P
Jabsco
$84.29 $53.99Jabsco Impeller Neoprene 189480001P- Part Number:
- 6-189480001P
- Availability:
- In Stock - Ships same or next business day.
- Fig.:
- X
- Description:
- Impeller
- Type:
- Neoprene
- Blades:
- 12
- Size:
- 2-9/16"
- Depth:
- 1-5/8"
$84.29 $53.99 -
Martyr Anodes Anode Shaft 1.25 Aluminum Cmx05Al
Martyr Anodes
$13.69 $11.99Martyr Anodes Anode Shaft 1.25 Aluminum Cmx05Al Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water- Part Number:
- 194-CMX05AL
- Availability:
- In Stock - Ships same or next business day.
- ID:
- 1-1/4"
- OD:
- 2-1/2"
- Length:
- 2-1/2"
- Material:
- Aluminum
$13.69 $11.99 -
NGK Spark Plugs Br10Es Spark Plug 4832
NGK Spark Plugs
$5.89 $4.13NGK Spark Plugs Br10Es Spark Plug 4832 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-BR10ES
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 4832
- Pkg.:
- Boxed
- What's in the Box:
- (1) Spark Plug
$5.89 $4.13 -
Sierra Drain Plug W-Magnet Honda-MerCruiser 18-2375
Sierra
$8.79 $6.94Sierra Drain Plug W-Magnet Honda-MerCruiser 18-2375- Part Number:
- 47-2375
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- Mercruiser Alpha MR/Gen II lower units. OEM # 10-14834A1 - 22-67892A1
- Drain Screw:
- Magnetic Drain Screw
$8.79 $6.94 -
Sierra Eclipse 3 Tachometer 0-4000Rpm 68398P
Sierra
$172.19 $119.51Sierra Eclipse 3 Tachometer 0-4000Rpm 68398PSmart white and blue graphics on a black dial background; these very low profile bezels follow the curve of the lense to eliminate water trapping. Design with domed glass sheds water and resists scratching...- Part Number:
- 11-68398P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3"
- Type:
- Tachometer - Diesel Alt
- Dial Range:
- 0-4000 rpm
- Sender Code:
- Alternator
$172.19 $119.51 -
Sierra O Ring OMC303360 MerCruiser 25-35027 18-7117
Sierra
$2.99 $2.39Sierra O Ring OMC303360 MerCruiser 25-35027 18-7117- Part Number:
- 47-7117
- Availability:
- In Stock - Ships same or next business day.
$2.99 $2.39 -
Uflex QC Helm Steering Cable M66
Uflex
$195.49 $139.99Uflex QC Helm Steering Cable M66 The M66 Universal Rotary Steering Cable is the one and only cable that directly replaces Uflex, Teleflex/Seastar Solutions SSC62 QC® and Morse Command 290® steering cables with no adapters. This cable features...- Part Number:
- NW-216M66
- Availability:
- In Stock - Ships same or next business day.
$195.49 $139.99 -
Seachoice Marine Speedometer Pitot Kit 15391
Seachoice
$30.99 $18.99Seachoice Marine Speedometer Pitot Kit 15391 Kit Includes: • 20' PVC tubing • (1) Black plastic clam shell vent • (4) Black plastic tube holder • (6) Stainless steel self-tapping screws- Part Number:
- 50-15391
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Pitot Kit
$30.99 $18.99 -
Sold Out, please call for ETA.
Seastar Gen II Merc Control Cable CC189
Seastar
$58.59 $45.29Seastar Gen II Merc Control Cable CC189 Stainless steel and brass fittings. Fits Mariner/Mercury/Mercruiser and other engines using Mercury 2003-date 4000 series controls. 8" Min bend radius.- Part Number:
- NW-1CC189
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 10'
$58.59 $45.29 -
Seastar Quad Ring .210 Hyd Helm 20/Pk Hs6037
Seastar
$24.39 $20.99Seastar Quad Ring .210 Hyd Helm 20/Pk Hs6037- Part Number:
- 1-HS6037
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Quad Ring #210
- Pack:
- 20
$24.39 $20.99 -
Seastar seal kit with wrench HS5157
Seastar
$210.09 $188.99Replacement front seal kit for SeaStar pivot / front mount cylinders Kit contains: (2) Seal Glands, Pin Wrench, Seal Gland Assembly Guide Tool- Part Number:
- 1-HS5157
- Availability:
- In Stock - Ships same or next business day.
$210.09 $188.99 -
Sierra C-Trim Hose MerCruiser #32-99904Q 18-2116
Sierra
$62.69 $54.99Sierra C-Trim Hose MerCruiser #32-99904Q 18-2116- Part Number:
- 47-2116
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Mercruiser #: 32-99904
$62.69 $54.99 -
Sierra Carb Repair Kit 18-7743
Sierra
$128.19 $84.99Sierra Carb Repair Kit 18-7743- Part Number:
- 47-7743
- Availability:
- In Stock - Ships same or next business day.
$128.19 $84.99 -
Sierra Filter-Fuel Onan# 149-2106 23-7760
Sierra
$28.29 $20.83Sierra Filter-Fuel Onan# 149-2106 23-7760- Part Number:
- 47-237760
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Onan #A026K278 - 149-2106
- Fits:
- MDKAU - MDKAV - MDKBG - MDKAW (Spacesaver) - MDKAZ - MDKBD - MDKBE - MDKBF - MDKBD (w/ Isolated Ground) - MDKBE (w/ Isolated Ground) - MDKBF (w/ Isolated Ground) - MDKAD/E/F
$28.29 $20.83 -
Sierra Fuel Connector-Suzuki #65750-94404 18-80419
Sierra
$24.69 $19.99Sierra Fuel Connector-Suzuki #65750-94404 18-80419- Part Number:
- 47-80419
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose - Female
- Fits:
- Suzuki
- Application:
- Fits - DF25-DF140. Mates with 18-80425
- Replaces:
- 65750-87J10 - 65750-87J11
- Thread:
- 5/16" NPT
- Hose:
- -
$24.69 $19.99 -
Starbrite Power Trim/Tilt Fluid 32 Oz 28532
Starbrite
$17.99 $15.99Starbrite Power Trim/Tilt Fluid 32 Oz 28532 • Exceeds OEM warranty requirements• Formulated to provide consistent, no-fade performance• Anti-foam, anti-wear, anti-oxidation and advanced stabilizing additives for optimum performance in...- Part Number:
- 74-28532
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Quart
$17.99 $15.99 -
Uflex Fitting-Bulkhead Dual Hyd Hose R8B
Uflex
$93.89 $67.99Uflex Fitting-Bulkhead Dual Hyd Hose R8B For use with preassembled hoses to provide a waterproof thru-bulkhead connection.- Part Number:
- 216-R8B
- Availability:
- In Stock - Ships same or next business day.
- Color:
- Black
- Size:
- 4.2" x 3.5"
$93.89 $67.99 -
Uflex Steering Wheel Hub Splined Splined Hub SPLINEDHUB
Uflex
$55.99 $45.99Uflex Steering Wheel Hub Splined Splined Hub Splined hub converts a tapered hub steering wheel to fit most splined shafts. Fits Uflex steering wheels with a removable hub, including Nisida, Spargi, Santorini, Gorgona, Lavezzi, Ponza, Linosa, Budelli,...- Part Number:
- 216-SPLINEDHUB
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Steering Wheel Hub - Splined
$55.99 $45.99 -
Martyr Anodes Anode Hull Aluminum Zhc3 Cmzhc3A
Martyr Anodes
$26.69 $19.99Martyr Anodes Anode Hull Aluminum Zhc3 Cmzhc3A Zinc: For use in salt waterAluminum: For use in brackish waterMagnesium: For use in fresh water- Part Number:
- 194-CMZHC3AA
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 6-1/4" L x 2-3/4" W x 3/4" H
- Hole:
- 3-1/4"
- Material:
- Aluminum
$26.69 $19.99
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.