Aftermarket Parts
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Sold Out, please call for ETA.
Sierra Gasket Vc 4.3L V6 Mc27-11988 18-0311
Sierra
$26.59 $19.18Sierra Gasket Vc 4.3L V6 Mc27-11988 18-0311- Part Number:
- 47-0311
- Availability:
- In Stock - Ships same or next business day.
$26.59 $19.18 -
Sold Out, please call for ETA.
Sierra Gasket-Timing Cover GM L4-L6 18-0887
Sierra
$6.44Sierra Gasket-Timing Cover GM L4-L6 18-0887- Part Number:
- 47-0887
- Availability:
- In Stock - Ships same or next business day.
$6.44 -
Sold Out, please call for ETA.
Sierra Gasketmfld-Hd Vp 835966&856034 18-2949
Sierra
$15.09 $13.64Sierra Gasketmfld-Hd Vp 835966&856034 18-2949- Part Number:
- 47-2949
- Availability:
- In Stock - Ships same or next business day.
$15.09 $13.64 -
Sierra Gear Housing Seal Kit 18-2598
Sierra
$61.89 $44.32Sierra Gear Housing Seal Kit 18-2598Refer to Manufacturer's Application Guides for more information and complete references- Part Number:
- 47-2598
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Lower Unit Seal Kit - fOR Volvo SX Thru 2006 - 3855275
- Replaces:
- 3855275
$61.89 $44.32 -
Special Order! See availaility for details
Sierra Grommet Watertube9.9-35 30249 18-3329
Sierra
$7.39 $5.32Sierra Grommet Watertube9.9-35 30249 18-3329- Part Number:
- 47-3329
- Availability:
- In Stock - Ships same or next business day.
$7.39 $5.32 -
Sierra Hourmeter-Universal Rectangle 56967P
Sierra
$87.69 $73.42Sierra Hourmeter-Universal Rectangle 56967PBlack and White graphics.- Part Number:
- 11-56967P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2.1" x 1.2"
- Type:
- Rectangular
$87.69 $73.42 -
Sierra Impeller Kit 18-3077
Sierra
$67.69 $49.40Sierra Impeller Kit 18-3077- Part Number:
- 47-3077
- Availability:
- In Stock - Ships same or next business day.
$67.69 $49.40 -
Sold Out, please call for ETA.
Sierra Impeller Kit 18-3216
Sierra
$59.99 $42.70Sierra Impeller Kit 18-3216- Part Number:
- 47-3216
- Availability:
- In Stock - Ships same or next business day.
$59.99 $42.70 -
Sierra Impeller Kit-Kohler# 229955 23-3304
Sierra
$54.39 $24.54Sierra Impeller Kit-Kohler# 229955 23-3304- Part Number:
- 47-233304
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Kohler #229955
- Fits:
- 8E (SN 296898 and Below) - 10E (SN 296898 and Below) - 12.5E (SN 296898 and Below) - 12.5CF (SN 296898 and Below)
$54.39 $24.54 -
Sierra Impeller Kit-Volvo# 3858256-5 18-3081
Sierra
$36.29 $26.27Sierra Impeller Kit-Volvo# 3858256-5 18-3081- Part Number:
- 47-3081
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Jabsco: 12100001 - 12100003.
Volvo: 875811-2 - 3858256 - 3862281
OMC: 3858256 Johnson Pump: 09-1027B - 09-1027B-9 - Description:
- 12 Spline(12 Fin)
$36.29 $26.27 -
Sierra Impeller Kit-Westerbeke# 32620 23-3305
Sierra
$55.59 $43.16Sierra Impeller Kit-Westerbeke# 32620 23-3305- Part Number:
- 47-233305
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Westerbeke #32620
- Fits:
- 4.0 BCG(60Hz)/3.0 BCG(50Hz) - 4.5 BCG(60Hz)/3.75 BCG(50Hz) - 4.5 BCGB(60Hz)/3.75 BCGB(50Hz) - 4.5 BCGTC(60Hz)/3.75 BCGTC(50Hz) - 6.5 BCG(60Hz)/4.8 BCG(50Hz) - 7.0 BCG(60Hz)/5.0 BCG(50Hz) - 7.0 BCGA(60Hz)/5.0 BCGA(50Hz) - 7.0 BCGB(60Hz)/6.0 BCGB(50Hz)
$55.59 $43.16 -
Sierra J/E Carb Kit 398729 18-7042
Sierra
$28.69 $20.52Sierra J/E Carb Kit 398729 18-7042- Part Number:
- 47-7042
- Availability:
- In Stock - Ships same or next business day.
- OEM #:
- J/E # 392061 - 396701 - 398729
$28.69 $20.52 -
Sierra Je Gear Hsg Seal Kit 18-2679
Sierra
$51.79 $39.05Sierra Je Gear Hsg Seal Kit 18-2679- Part Number:
- 47-2679
- Availability:
- In Stock - Ships same or next business day.
$51.79 $39.05 -
Sierra Lido Fuel Gauge Fog Resistant 59655P
Sierra
$83.29 $58.23Sierra Lido Fuel Gauge Fog Resistant 59655PFog resistant gauges comply with SAE J-1810. Black graphics on a white face with chrome ring and a black pointer with fire-orange tip. Scratch resistant curved glass lense with polished stainless steel;...- Part Number:
- 11-59655P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Fuel
- Dial Range:
- E-1/2-F
- Sender Code:
- 90424P
$83.29 $58.23 -
Sold Out, please call for ETA.
Sierra Lido GPS Speedo 60Mph 781-310-060P
Sierra
$155.89 $1.30Sierra Lido GPS Speedo 60Mph 781-310-060PProvides accurate speed over ground readings and heading information all in one attractive package. This product is ideal for all speed applications and is particularly useful for slow and high speeds where...- Part Number:
- 11-781310060P
- Availability:
- In Stock - Ships same or next business day.
- Model:
- Lido Series
- Size:
- 3"
- Type:
- GPS Speedometer
- Dial Range:
- 0-60 mph
$155.89 $1.30 -
Sierra Lido Tachometer Fog Res 7000Rpm 59737P
Sierra
$174.99 $144.19Sierra Lido Tachometer Fog Res 7000Rpm 59737PFog resistant gauges comply with SAE J-1810. Black graphics on a white face with chrome ring and a black pointer with fire-orange tip. Scratch resistant curved glass lense with polished stainless steel;...- Part Number:
- 11-59737P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3"
- Type:
- Tach - Elec - O/B & 4-Stroke Gas
- Dial Range:
- 0-7000
- Sender Code:
- O/B Alt or Coil
$174.99 $144.19 -
Sold Out, please call for ETA.
Sierra Manifold Riser 18-1907
Sierra
$276.99 $191.08Sierra Manifold Riser 18-1907Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1907
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Chris-Craft - Chrysler I/B - Crusader - Pleasurecraft - Mercruiser - OMC Sterndrive/Cobra - Volvo Replaces Barr 20-0102 - Indmar 53-2009 and 53-2018
$276.99 $191.08 -
Sierra Marine Boat Pitot Tube Speedometers 30-80 mph Packaged 56973P
Sierra
$18.39 $16.02Sierra Pitot Tube Packaged 56973PThese pitots replace almost any brand without drilling new holes; have an automatic kick up feature to prevent transom damage; and can be used with any pressure driven speedometer up to 80 mph including Faria; Medallion...- Part Number:
- 11-56973P
- Availability:
- In Stock - Ships same or next business day.
- Pack:
- 1
$18.39 $16.02 -
Sierra Mounting Kit 18-8520
Sierra
$28.29 $22.88Sierra Mounting Kit 18-8520- Part Number:
- 47-8520
- Availability:
- In Stock - Ships same or next business day.
$28.29 $22.88 -
Sierra Mounting Kit 18-8535
Sierra
$21.89 $16.64Sierra Mounting Kit 18-8535- Part Number:
- 47-8535
- Availability:
- In Stock - Ships same or next business day.
$21.89 $16.64
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.