Aftermarket Parts
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Sierra Gasket Fuel Pump Ym65024431A000 18-0849
Sierra
$3.89 $3.29Sierra Gasket Fuel Pump Ym65024431A000 18-0849- Part Number:
- 47-0849
- Availability:
- In Stock - Ships same or next business day.
$3.89 $3.29 -
Sold Out, please call for ETA.
Sierra Glowplug-12V Westerbeke# 24353 23-1000
Sierra
$53.69 $1.30Sierra Glowplug-12V Westerbeke# 24353 23-1000Fits: 4.4 BCD(60Hz); 4.4 WMD(60Hz) / 3.3 WMD(50Hz); 6.0 BCD(60Hz) / 4.5 BCD(50Hz); 7.7 WMD(60Hz) / 5.8 WMD(50Hz); 8.0 BTD(60Hz) / 6.0 BTD(50Hz); 8.0 BTDA(60Hz) / 6.0 BTDA(50Hz); 8.0 WMD(60Hz) / 6.0 WMD(50Hz);...- Part Number:
- 47-231000
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Westerbeke #24353
$53.69 $1.30 -
Sold Out, please call for ETA.
Sierra Lower Seal Kt26-43035A4 55-075 18-2626
Sierra
$83.39 $64.99Sierra Lower Seal Kt26-43035A4 55-075 18-2626- Part Number:
- 47-2626
- Availability:
- In Stock - Ships same or next business day.
$83.39 $64.99 -
Sierra Manifold 283-350 Barr#Chv-1-83 18-1997-1
Sierra
$416.89 $297.11Sierra Manifold 283-350 Barr#Chv-1-83 18-1997-1Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-19971
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Barr# CHV-1-83
- Application:
- Port & Starboard - Universal center riser manifold. Fits Chris-Craft 283 - 305 - 307 and 350 CID engines.
Crusader 283 and 327 CID engines (up to '64) and 305 - 307 and 350 CID engines ('65 & Newer).
Mercury 190 - 198 - 225 - 250 - 270 - 228 -
$416.89 $297.11 -
Sold Out, please call for ETA.
Sierra Motor Flush 18-9010
Sierra
$22.49 $20.65Sierra Motor Flush 18-9010- Part Number:
- 47-9010
- Availability:
- In Stock - Ships same or next business day.
$22.49 $20.65 -
Sierra Nis/Su 1/4 Mal Ful Con 55-883 18-8078
Sierra
$17.59 $12.49Sierra Nis/Su 1/4 Mal Ful Con 55-883 18-8078- Part Number:
- 47-8078
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Tank - Male
- Fits:
- Nissan/Suzuki/Tohatsu
- Application:
- Fits all models - large inlet - mates with 18-8079
- Replaces:
- Suzuki 65740-95500 - 9905-00193 - 65750-95510 - 6570-95500
- Thread:
- 1/4" NPT
- Hose:
- -
$17.59 $12.49 -
Sierra Nut Lock-OMC Cobra & Vp Sx 18-3730
Sierra
$6.79 $5.99Sierra Nut Lock-OMC Cobra & Vp Sx 18-3730- Part Number:
- 47-3730
- Availability:
- In Stock - Ships same or next business day.
$6.79 $5.99 -
Sold Out, please call for ETA.
Sierra O Ring 18-7133
Sierra
$1.89Sierra O Ring 18-7133- Part Number:
- 47-7133
- Availability:
- In Stock - Ships same or next business day.
$1.89 -
Sold Out, please call for ETA.
Sierra O Ring 18-7143
Sierra
$1.59Sierra O Ring 18-7143- Part Number:
- 47-7143
- Availability:
- In Stock - Ships same or next business day.
$1.59 -
Sierra Oil Seal 320832/27-76868 18-2002
Sierra
$15.29 $12.13Sierra Oil Seal 320832/27-76868 18-2002- Part Number:
- 47-2002
- Availability:
- In Stock - Ships same or next business day.
$15.29 $12.13 -
Sierra Sender-Oil Pres 80Psi Dual Sta Op24891
Sierra
$54.49 $47.99Sierra Sender-Oil Pres 80Psi Dual Sta Op24891- Part Number:
- 11-OP24891
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 1/8" - 27
- Terminal:
- 10-32 Stud
- Rating:
- 80 psi/Dual Stations
$54.49 $47.99 -
Sierra Volvo OMC Exhaust Manifold GM Small Block 5.0-5.7L Vp#3857723 18-1986-1 18-1986-2
Sierra
$455.59 $345.99Sierra Manifold-GM5.0-5.7L Vp#3857723 18-1986-1 , 18-1986-2 Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-19862
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Volvo 3852374-2 - 3857723 -
3847501 - OMC 3852374 - 3857723 - Application:
- Port & Starboard - 5.0L & 5.7L GM (new style).
Uses gasket 2949 and mounting kit 8502
$455.59 $345.99 -
Sierra Wire Set-MerCruiser 3.0L/3.0L Efi Ob 18-28080
Sierra
$67.99 $52.99Sierra Wire Set-MerCruiser 3.0L/3.0L Efi Ob 18-28080- Part Number:
- 47-28080
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 84-821945A56
$67.99 $52.99 -
STA-BIL Gas Stabilizer 16oz 22207
STA-BIL
$13.99 $11.70STA-BIL Gas Stabilizer 16oz 22207 Keeps fuel fresh for quick, easy starts after storage Removes water according to OEM specs to prevent corrosion Cleans carburetors and fuel injectors Protects engine from gum, varnish, rust, and corrosion ...- Part Number:
- 269-22207
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 16 oz.
- Treats:
- 40 gal.
$13.99 $11.70 -
Starbrite Grease Gun Lever F/14 Oz Cart. 28714
Starbrite
$51.79 $38.99Starbrite Grease Gun Lever F/14 Oz Cart. 28714 • For use with all 14 and 14-1/2 oz• grease cartridges• Corrosion resistant bright metal finish• Engineered to maximize pressure with consistent flow of grease• Heavy gauge steel...- Part Number:
- 74-28714
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Grease Gun
$51.79 $38.99 -
Starbrite Synthetic 80W90 Gear Lube 32Oz 27232
Starbrite
$20.89 $17.19Starbrite Synthetic 80W90 Gear Lube 32Oz 27232 • Synthetic Blend for API GL-5, MT-1 service SAE J2360, Mack GO-J• For long term performance synthetics are the best choice• Special extreme pressure and anti-wear additives Recommended for...- Part Number:
- 74-27232
- Availability:
- In Stock - Ships same or next business day.
- Grade:
- 80W90
- Size:
- Qt.
$20.89 $17.19 -
Uflex Bleed Kit For Up Series Pumps Blackit
Uflex
$20.49 $15.99Uflex Bleed Kit For Up Series Pumps Blackit Use to fill and bleed a hydraulic helm.- Part Number:
- 216-BLKIT
- Availability:
- In Stock - Ships same or next business day.
$20.49 $15.99 -
Uflex Cap-Vented For Up Pump 40801N
Uflex
$20.89 $17.99Uflex Cap-Vented For Up Pump 40801N- Part Number:
- 216-40801N
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Vented Fill Cap
$20.89 $17.99 -
Uflex Steering Sys-Hyd Hi Perf Ob V2 Silversteer20B
Uflex
$1,726.89 $1,449.99Uflex Steering Sys-Hyd Hi Perf Ob V2 Silversteer20B Designed for high performance applications with extreme rudder torque loads, the SilverSteer is the perfect solution. Bass boats, flats boats, tournament fishing boats will steer effortlessly with the...- Part Number:
- 216-SILVERSTEER20B
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Helm: Single engine 350 hp - Dual engine 600 hp
- PSI:
- 1500
$1,726.89 $1,449.99 -
Uflex Uc128 Tilt Tube Mounting Rod 73115F
Uflex
$74.59 $59.99Uflex Uc128 Tilt Tube Mounting Rod 73115F- Part Number:
- 216-73115F
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Tilt Tube Rod
- Fits:
- UC128-OBF/UC128-SVS
$74.59 $59.99
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.