Aftermarket Parts
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Sierra Rotor Pres Ignition V8 Clip Cap 18-5407
Sierra
$17.29 $14.25Sierra Rotor Pres Ignition V8 Clip Cap 18-5407- Part Number:
- 47-5407
- Availability:
- In Stock - Ships same or next business day.
$17.29 $14.25 -
Sierra Sahara 6 Gauge Set 65485P
Sierra
$451.09 $318.49Sierra Sahara 6 Gauge Set 65485PBlack graphics on a Tan dial background light Red at night. Very low profile bezels follow the curve of the lens to eliminate water "trapping". Pointers are Black with a Fire-Orange tip. Perimeter and through-dial lighting...- Part Number:
- 11-65485P
- Availability:
- In Stock - Ships same or next business day.
- Type:
- Inboard/Sterndrive 6 Gauge Set: Tach (to 7 -000 rpm) - Speedo (to 65 mph) - Voltmeter (12V systems) - Fuel gauge - Water temp - Oil pressure 0-80psi
- Sender Code:
- C - D - F
$451.09 $318.49 -
Sold Out, please call for ETA.
Sierra Sahara Oil Pressure Gauge 80 59705P
Sierra
$49.66Sierra Sahara Oil Pressure Gauge 80 59705PBlack graphics on a tan dial background light red at night. Very low profile bezels follow the curve of the lens to eliminate water "trapping". Pointers are black with a fire-orange tip. Perimeter and...- Part Number:
- 11-59705P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Oil Pressure - Electrical
- Dial Range:
- 0-80 psi
- Sender Code:
- C
$49.66 -
Sold Out, please call for ETA.
Sierra Sahara Water Temp Gauge I/O 59706P
Sierra
$67.89 $56.66Sierra Sahara Water Temp Gauge I/O 59706PBlack graphics on a tan dial background light red at night. Very low profile bezels follow the curve of the lens to eliminate water "trapping". Pointers are black with a fire-orange tip. Perimeter and through-dial...- Part Number:
- 11-59706P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Water Temperature - Electric
- Dial Range:
- 120-240 F
- Sender Code:
- D
$67.89 $56.66 -
Sierra Seal Kit 18-2597
Sierra
$19.49 $11.99Sierra Seal Kit 18-2597- Part Number:
- 47-2597
- Availability:
- In Stock - Ships same or next business day.
$19.49 $11.99 -
Sold Out, please call for ETA.
Sierra Seal Kit-Lower Gc E/J#439141 18-2623
Sierra
$122.89 $79.92Sierra Seal Kit-Lower Gc E/J#439141 18-2623Refer to Manufacturer's Application Guides for more information and complete references- Part Number:
- 47-2623
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Lower Unit Seal Kit
- Replaces:
- 439141
$122.89 $79.92 -
Sierra Seal Kit-Velvet Drive 71 & 72 18-2590
Sierra
$160.49 $122.11Sierra Seal Kit-Velvet Drive 71 & 72 18-2590Service kit for Borg-Warner Velvet Drive 71 and 72 series transmission.- Part Number:
- 47-2590
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Borg Warner A4876HA
$160.49 $122.11 -
Sold Out, please call for ETA.
Sierra Seal-Trim Yamaha #64E-43822-00-00 18-2081
Sierra
$17.59 $11.30Sierra Seal-Trim Yamaha #64E-43822-00-00 18-2081- Part Number:
- 47-2081
- Availability:
- In Stock - Ships same or next business day.
$17.59 $11.30 -
Sierra Solenoid- Evin-John #582708 18-5833
Sierra
$82.59 $51.79Sierra Solenoid- Evin-John #582708 18-5833- Part Number:
- 47-5833
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 586774
$82.59 $51.79 -
Sierra Starter-Perm Mag Ford 5.0-5.8L 18-5920
Sierra
$186.19 $164.51Sierra Starter-Perm Mag Ford 5.0-5.8L 18-5920- Part Number:
- 47-5920
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Permanent magnet - 5.0L & 5.8L Ford engines
- Application:
- OMC 987811 - 3854190 - Pleasurecraft 987811 - RRK122014 - RA122001 - Volvo 3854190
$186.19 $164.51 -
Sold Out, please call for ETA.
Sierra Sterling Speedo Kit 80 Mph 63476P
Sierra
$96.48Sierra Sterling Speedo Kit 80 Mph 63476PBlack graphics on a brushed aluminum dial background. Pointers are black. Perimeter lighting is provided for night visibility. Domed glass convex lenses are scratch resistant.- Part Number:
- 11-63476P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3"
- Type:
- Speedometer - Head Only
- Dial Range:
- 20-80 mph
- Sender Code:
- G included
$96.48 -
Sierra Thermostat Kit 18-3671
Sierra
$43.49 $29.43Sierra Thermostat Kit 18-3671- Part Number:
- 47-3671
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Thermostat Kit (142 Deg -): For many PCM - Crusaders - Indmar/MasterCraft & Marine Power V-6 & V-8
$43.49 $29.43 -
Sierra Thermostat Kit Mer-Nis-Toh 9.9-30Hp 18-43175
Sierra
$65.49 $47.96Sierra Thermostat Kit Mer-Nis-Toh 9.9-30Hp 18-43175Mercury/Mariner: Replaces- 855676002Fits: Mercury 15 Carb(2cyl) 4-Stroke(R235949& Up); 15 SeaPro 4-Stroke(R051685 & Up); 20 Carb(2cyl)4-Stroke(R235168 & Up); 25 EFI(3cyl)4-Stroke(R106999 & Up); 25 Jet...- Part Number:
- 47-43175
- Availability:
- In Stock - Ships same or next business day.
$65.49 $47.96 -
Sold Out, please call for ETA.
Sierra Tilt/Trim Assembly OMC 437801 18-6280
Sierra
$207.29 $176.93Sierra Tilt/Trim Assembly OMC 437801 18-6280- Part Number:
- 47-6280
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Heavy Duty - OMC J Suffix 40 - 48 - 50HP (1992-Up) w/ 2 wire connection & hollow hex shaft
- Replaces:
- J/E - 437801
$207.29 $176.93 -
Sierra Tilt/Trim Motor MerCruiser #826729A10 18-6273-1
Sierra
$905.19 $641.83Sierra Tilt/Trim Motor MerCruiser #826729A10 18-6273-1- Part Number:
- 47-62731
- Availability:
- In Stock - Ships same or next business day.
$905.19 $641.83 -
Sierra Tune Up Kit 18-5281
Sierra
$64.69 $44.48Sierra Tune Up Kit 18-5281Tune up kits include cap and rotor.- Part Number:
- 47-5281
- Availability:
- In Stock - Ships same or next business day.
- Description:
- V-8
- Application:
- Crusader - Indmar - Pleasurecraft - Mercruiser
$64.69 $44.48 -
Sierra U-Joint Assembly 18-2339
Sierra
$674.19 $498.40Sierra U-Joint Assembly 18-2339- Part Number:
- 47-2339
- Availability:
- In Stock - Ships same or next business day.
$674.19 $498.40 -
Sold Out, please call for ETA.
Sierra Valve Shut-Off F-F 1/4 Fnpt 18-1653
Sierra
$16.29 $13.08Sierra Valve Shut-Off F-F 1/4 Fnpt 18-1653- Part Number:
- 47-1653
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Female/Female
- Thread:
- 1/4" FNPT
$16.29 $13.08 -
Sold Out, please call for ETA.
Sierra Valve Shut-Off M-F 1/4 Fnpt 18-1652
Sierra
$15.39 $12.88Sierra Valve Shut-Off M-F 1/4 Fnpt 18-1652- Part Number:
- 47-1652
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Male/Female
- Thread:
- 1/4" MNPT / 1/4" FNPT
$15.39 $12.88 -
Sierra Vst Filter-Yamaha #66K-13915-00-00 18-79900
Sierra
$83.99 $55.67Sierra Vst Filter-Yamaha #66K-13915-00-00 18-79900- Part Number:
- 47-79900
- Availability:
- In Stock - Ships same or next business day.
- Application:
- DX150 (1999-05) - LX150 1999-01) - PX150 (1999) - SX150 (1999-04) - VX150 (2000-04) - LX200 (1999-01) - SX200 (1999-05) - V200 (1999) - VX200 (2000-05) - L225 (1999) - LX225 (2000-03) - S225 (1999) - SX225 (2000-03) - V225 (1999) - VX225 (2000-04) -
- OEM #:
- 66K-13915-00-00
$83.99 $55.67
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.