Aftermarket Parts
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Sold Out, please call for ETA.
Sierra White Premier Tach/Hour 62565P
Sierra
$264.59 $180.34Sierra White Premier Tach/Hour 62565PWhite dial; black graduations/numerals (metrics in blue); red pointerScratch resistant curved glass lenses; with polished stainless steel; near-flush bezelsU.S. and metric scales; with ISO symbols; where...- Part Number:
- 11-62565P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3"
- Type:
- Tach/Hourmeter - O/B & 4-stroke gas
- Dial Range:
- 0-7000 rpm
- Sender Code:
- O/B Alt or Coil
$264.59 $180.34 -
Sold Out, please call for ETA.
Sierra White Premier Trim Gauge 62549P
Sierra
$71.59 $48.42Sierra White Premier Trim Gauge 62549PWhite dial; black graduations/numerals (metrics in blue); red pointerScratch resistant curved glass lenses; with polished stainless steel; near-flush bezelsU.S. and metric scales; with ISO symbols; where...- Part Number:
- 11-62549P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Trim - Yamaha 2001 and on
- Dial Range:
- Up-Down
- Sender Code:
- Engine Mfg.
$71.59 $48.42 -
Sold Out, please call for ETA.
Sierra White Premier Voltmeter 20-32Vdc 62539P
Sierra
$0.00Sierra White Premier Voltmeter 20-32Vdc 62539PWhite dial; black graduations/numerals (metrics in blue); red pointerScratch resistant curved glass lenses; with polished stainless steel; near-flush bezelsU.S. and metric scales; with ISO symbols; where...- Part Number:
- 11-62539P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Voltmeter 24Volt
- Dial Range:
- 20-32 VDC
- Sender Code:
- N/R
$0.00 -
Sierra Wire 4In Plug Evinrude/Johnson 18-8815-1
Sierra
$20.99 $16.73Sierra Wire 4In Plug Evinrude/Johnson 18-8815-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine...- Part Number:
- 47-88151
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Johnson/Evinrude - 4" wire
$20.99 $16.73 -
Sierra Wire Set Ford OMC 2.3L L4 18-8806-1
Sierra
$114.59 $86.10Sierra Wire Set Ford OMC 2.3L L4 18-8806-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine performancePremium...- Part Number:
- 47-88061
- Availability:
- In Stock - Ships same or next business day.
- Application:
- OMC - 5.0L - 5.8L - ('89-'90) - 8 cylinder
$114.59 $86.10 -
Sierra Wire Set GM5.0L-5.7L Delco Est 18-8820-1
Sierra
$107.19 $84.24Sierra Wire Set GM5.0L-5.7L Delco Est 18-8820-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine...- Part Number:
- 47-88201
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Flagship - Indmar - Marine Power & Mastercraft - 350 - 5.7L - 454 - 7.4L - 502 - 8.2L - 8 cylinder - EST - EFI ignition
$107.19 $84.24 -
Sold Out, please call for ETA.
Sierra Wire Set Volvo 4 Cylinder 18-8813-1
Sierra
$235.79 $178.07Sierra Wire Set Volvo 4 Cylinder 18-8813-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine performancePremium...- Part Number:
- 47-88131
- Availability:
- In Stock - Ships same or next business day.
- Application:
- 7 mm set - Volvo - AQ120B - AQ125A - B - AQ131A-D - AQ140A - AQ145A - B - AQ151A-C - BB140A - BB145A
$235.79 $178.07 -
Sold Out, please call for ETA.
Sierra Wire Set-Mag MerCruiser 40-60Efi 4St 18-28085
Sierra
$79.79 $61.66Sierra Wire Set-Mag MerCruiser 40-60Efi 4St 18-28085- Part Number:
- 47-28085
- Availability:
- In Stock - Ships same or next business day.
- Application:
- 40-6- EFI 4-stroke (4cyl)
- Replaces:
- 84-881908T (4 wires)
$79.79 $61.66 -
Sierra Wire Set-MerCruiser 3.0/3.0L Efi Cdm 18-28081
Sierra
$85.89 $69.23Sierra Wire Set-MerCruiser 3.0/3.0L Efi Cdm 18-28081- Part Number:
- 47-28081
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 84-813706A56
$85.89 $69.23 -
Sold Out, please call for ETA.
Sierra Wire St-Mg Ford V8 135Deg Boot 18-28044
Sierra
$92.39 $77.18Sierra Wire St-Mg Ford V8 135Deg Boot 18-28044- Part Number:
- 47-28044
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Ford V8 - 135 Deg - Boot
$92.39 $77.18 -
Sold Out, please call for ETA.
Sierra Wire-10In Hi Perf Plug-O/B 5Pk 18-5230-9-1
Sierra
$21.89 $17.80Sierra Wire-10In Hi Perf Plug-O/B 5Pk 18-5230-9-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine...- Part Number:
- 47-523091
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Johnson/Evinrude - 10" - 5 Pack
$21.89 $17.80 -
Sierra Wiring Plug Set 18-8807-1
Sierra
$74.39 $49.91Sierra Wiring Plug Set 18-8807-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine performancePremium silicone...- Part Number:
- 47-88071
- Availability:
- In Stock - Ships same or next business day.
- Application:
- OMC - 2.3L ('87-'90) - 4 cylinder
$74.39 $49.91 -
Sold Out, please call for ETA.
Sierra Woodruff Key (6E5) Ym90280-04 18-3302
Sierra
$12.89 $10.84Sierra Woodruff Key (6E5) Ym90280-04 18-3302- Part Number:
- 47-3302
- Availability:
- In Stock - Ships same or next business day.
$12.89 $10.84 -
Sold Out, please call for ETA.
Sierra X Voltage Regulator 18-5710
Sierra
$73.39 $1.30Sierra X Voltage Regulator 18-5710- Part Number:
- 47-5710
- Availability:
- In Stock - Ships same or next business day.
$73.39 $1.30 -
Sierra Ya Impeller 6H4-44352-00-00 18-3068
Sierra
$29.79 $23.40Sierra Ya Impeller 6H4-44352-00-00 18-3068- Part Number:
- 47-3068
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 6H4-44352-00-00 - 6H4-44352-02-00
$29.79 $23.40 -
On Sale
Sierra Ya Impeller Ym688-44352-03-00 18-3070
Sierra
$32.79 $19.29Sierra Ya Impeller Ym688-44352-03-00 18-3070- Part Number:
- 47-3070
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 688-44352-03-00
$32.79 $19.29 -
Sierra Ya Water Pump Rep 55-2081 18-3372
Sierra
$105.79 $68.99Sierra Ya Water Pump Rep 55-2081 18-3372- Part Number:
- 47-3372
- Availability:
- In Stock - Ships same or next business day.
$105.79 $68.99 -
Sierra Ya Wp Kit 6H4W0078A000 55-207 18-3429
Sierra
$52.89 $39.77Sierra Ya Wp Kit 6H4W0078A000 55-207 18-3429Refer to Sierra's Catalog for more information.- Part Number:
- 47-3429
- Availability:
- In Stock - Ships same or next business day.
- OEM #:
- 6H4-W0078-A0-00 - 644-W0078-A0-00
$52.89 $39.77 -
Sold Out, please call for ETA.
Sierra Yamaha L/U Seal Kit 18-2799
Sierra
$143.89 $109.04Sierra Yamaha L/U Seal Kit 18-2799Refer to Manufacturer's Application Guides for more information and complete references- Part Number:
- 47-2799
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Lower Unit Seal Kit: Yamaha L225-L250
- Replaces:
- 61A-W0001-21-00 -
YM 61A-W00011C1-00
$143.89 $109.04 -
Sold Out, please call for ETA.
Sierra Yamaha Starter 115-250Hp 18-6418
Sierra
$24.00Sierra Yamaha Starter 115-250Hp 18-6418- Part Number:
- 47-6418
- Availability:
- In Stock - Ships same or next business day.
$24.00
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.