Aftermarket Parts
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Sold Out, please call for ETA.
Sierra 332-5772A7 MerCruiser Switch Box 18-5881
Sierra
$337.09 $221.07Sierra 332-5772A7 MerCruiser Switch Box 18-5881- Part Number:
- 47-5881
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Chrysler/Force/Mercury: 332-5772A7
$337.09 $221.07 -
Sierra 826493-9 Volvo Fuel Pump 18-7281
Sierra
$197.89 $154.99Sierra 826493-9 Volvo Fuel Pump 18-7281- Part Number:
- 47-7281
- Availability:
- In Stock - Ships same or next business day.
$197.89 $154.99 -
Sierra 985063 OMC Solenoid '78-'90 18-5812
Sierra
$40.99 $34.99Sierra 985063 OMC Solenoid '78-'90 18-5812- Part Number:
- 47-5812
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 985063
$40.99 $34.99 -
Sierra Bellowsexh OMC 914036 18-2764
Sierra
$47.99 $41.99Sierra Bellowsexh OMC 914036 18-2764- Part Number:
- 47-2764
- Availability:
- In Stock - Ships same or next business day.
- Application:
- All clutch dog Cobra models ('86-'93)
- Replaces:
- 914036
$47.99 $41.99 -
Sierra Brass Fitting 3/8Nptx5/8 Hose 18-8041
Sierra
$10.49 $7.93Sierra Brass Fitting 3/8Nptx5/8 Hose 18-8041NOT TO BE USED IN POTABLE WATER SYSTEMS.- Part Number:
- 47-8041
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose Barb - Male
- Replaces:
- -
- Thread:
- 5/8" NPT
- Hose:
- 3/8" Barb
$10.49 $7.93 -
Sierra Carb Kit Suzuki 13910-94701 18-7754
Sierra
$36.99 $29.99Sierra Carb Kit Suzuki 13910-94701 18-7754- Part Number:
- 47-7754
- Availability:
- In Stock - Ships same or next business day.
$36.99 $29.99 -
Sierra Carburetor Kit MerCruiser #3302-804845 18-7097
Sierra
$84.69 $64.99Sierra Carburetor Kit MerCruiser #3302-804845 18-7097- Part Number:
- 47-7097
- Availability:
- In Stock - Ships same or next business day.
- OEM #:
- Mercruiser 3302-804845. 3302-9437
$84.69 $64.99 -
Sierra Eclipse 2 Fuel Gauge (E-F) 68390P
Sierra
$45.99 $37.99Sierra Eclipse 2 Fuel Gauge (E-F) 68390PSmart 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:
- 11-68390P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Fuel Gauge
- Dial Range:
- (E - 1/2 - F)
- Sender Code:
- N/R
$45.99 $37.99 -
Sierra Elbow Mounting Hardware Kit 18-8505
Sierra
$35.09 $26.12Sierra Elbow Mounting Hardware Kit 18-8505- Part Number:
- 47-8505
- Availability:
- In Stock - Ships same or next business day.
$35.09 $26.12 -
Sierra Exhaust Hose 18-2779
Sierra
$48.39 $36.81Sierra Exhaust Hose 18-2779- Part Number:
- 47-2779
- Availability:
- In Stock - Ships same or next business day.
- Description:
- OMC Cobra & Volvo
- Replaces:
- 3852696
$48.39 $36.81 -
Sierra Filter-Oil Yamaha Honda Nissan 18-7911-1
Sierra
$11.49 $10.99Sierra Filter-Oil Yamahahondanissan 18-7911-1Please see manufacturer application guide for complete application references.- Part Number:
- 47-79111
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Nissan 3R0076150M. Honda 15400-PFB-007. Yamaha 5GH-13440-00-00
$11.49 $10.99 -
Sold Out, please call for ETA.
Sierra Flame Arrestor Mc57882 & Crus 18-7232
Sierra
$200.49 $149.99Sierra Flame Arrestor Mc57882 & Crus 18-7232- Part Number:
- 47-7232
- Availability:
- In Stock - Ships same or next business day.
$200.49 $149.99 -
Sierra Fuel Line 8Ft Yamaha Epa 18-8017Ep-2
Sierra
$83.69 $67.99Sierra Fuel Line 8Ft Yamaha Epa 18-8017Ep-2Complete fuel line assemblies are all EPA compliant for outboards with above deck applications and are resistant to Ethanol fuel. NEW FKP (low permeation) primer bulbs. Thermoplastic construction resists UV...- Part Number:
- 47-8017EP2
- Availability:
- In Stock - Ships same or next business day.
- Application:
- OE #6YL-24306-60-00 - Fits F75-F250 and 115-300hp
- Hose:
- 3/8" x 8'
$83.69 $67.99 -
Sierra Gasket Head-OMC V4 Looper 18-3866
Sierra
$31.79 $23.41Sierra Gasket Head-OMC V4 Looper 18-3866- Part Number:
- 47-3866
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Head Gasket: E/J V4 120-140hp '88-96 - OMC# 340115
$31.79 $23.41 -
Sierra Gasket Set O/D MerCruiser #27-64818Q 4 18-2614
Sierra
$10.59 $7.45Sierra Gasket Set O/D MerCruiser #27-64818Q 4 18-2614- Part Number:
- 47-2614
- Availability:
- In Stock - Ships same or next business day.
$10.59 $7.45 -
Sierra Gasket Set-Gear Shift Mech Vp 18-3893
Sierra
$49.99 $36.55Sierra Gasket Set-Gear Shift Mech Vp 18-3893- Part Number:
- 47-3893
- Availability:
- In Stock - Ships same or next business day.
$49.99 $36.55 -
Sierra Je Gear Housg Seal Kit 18-2686
Sierra
$35.69 $26.99Sierra Je Gear Housg Seal Kit 18-2686- Part Number:
- 47-2686
- Availability:
- In Stock - Ships same or next business day.
$35.69 $26.99 -
Sierra Needle Valve Yamaha #6E5-14546-00 18-7055
Sierra
$22.19 $18.99Sierra Needle Valve Yamaha #6E5-14546-00 18-7055- Part Number:
- 47-7055
- Availability:
- In Stock - Ships same or next business day.
$22.19 $18.99 -
Sierra Oil 20W40 FCW O/B 1 Quart 18-9450-2
Sierra
$11.89Sierra Oil-20W40 FCW O/B Qt 18-9450-2Developed to replace the 10W-30 in warmer climatesMeets or exceeds OE specifications for Outboard OilAdvanced additive package to prevent rust and corrosion; breakdown under high RPM and maximum load...- Part Number:
- 47-94502
- Availability:
- In Stock - Ships same or next business day.
- Weight:
- 20W40
- Size:
- 1 Quart
$11.89 -
Sierra Oil Seal OMC 321467 55-02 18-2060
Sierra
$17.89 $13.65Sierra Oil Seal OMC 321467 55-02 18-2060- Part Number:
- 47-2060
- Availability:
- In Stock - Ships same or next business day.
$17.89 $13.65
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.