Aftermarket Parts
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Sierra Anode Kit Bravo Iii (Al) 18-6154A
Sierra
$95.89 $86.99Sierra Anode Kit Bravo Iii (Al) 18-6154A- Part Number:
- 47-6154A
- Availability:
- In Stock - Ships same or next business day.
- Application:
- 2004 & newer
- Material:
- Aluminum
$95.89 $86.99 -
Sierra Anode Kit Gen Ii (Al) 18-6158A
Sierra
$96.79 $87.08Sierra Anode Kit Gen Ii (Al) 18-6158A- Part Number:
- 47-6158A
- Availability:
- In Stock - Ships same or next business day.
- Application:
- 1991 & up
- OEM #:
- 888756Q01
- Material:
- Aluminum
$96.79 $87.08 -
Sierra Anode-Ko# 260085-Wb# 11885 23-6400
Sierra
$10.79 $9.61Sierra Anode-Ko# 260085-Wb# 11885 23-6400- Part Number:
- 47-236400
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Westerbeke #11885 -
Kohler #260085
$10.79 $9.61 -
Sierra Arctic Gauge-Water Temp Io-Ib 68376P
Sierra
$70.89 $59.99Sierra Arctic Gauge-Water Temp Io-Ib 68376PStylish White bezel design; black on white graphics; accurate and reliable; these tough instruments look good on all types of boats. Domed glass sheds water and resists scratching. Instruments available for most...- Part Number:
- 11-68376P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Water Temperature - Inboard/Outboard
- Dial Range:
- 120 Deg --240 Deg -F
- Sender Code:
- D
$70.89 $59.99 -
Sierra Bellows-Exhaust Vp Sx-A & Dps- 18-1076
Sierra
$64.69 $49.99Sierra Bellows-Exhaust Vp Sx-A & Dps- 18-1076- Part Number:
- 47-1076
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Volvo 3888916
$64.69 $49.99 -
Sierra Brass Connector 18-4461
Sierra
$14.79 $12.21Sierra Brass Connector 18-4461- Part Number:
- 47-4461
- Availability:
- In Stock - Ships same or next business day.
$14.79 $12.21 -
Sierra C-Tuneup Kit- MerCruiser Tbolt V6 18-5274
Sierra
$45.49 $37.99Sierra C-Tuneup Kit- MerCruiser Tbolt V6 18-5274- Part Number:
- 47-5274
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercury Thunderbolt HEI - V-6
$45.49 $37.99 -
Sierra Carb Kit Vo 841994 Om 984487 18-7086
Sierra
$54.69 $42.63Sierra Carb Kit Vo 841994 Om 984487 18-7086- Part Number:
- 47-7086
- Availability:
- In Stock - Ships same or next business day.
- OEM #:
- Chrysler Force 8 cyl. - OMC 984487 - Volvo 841994
$54.69 $42.63 -
Sierra Carb Kt Volvo 834895 55-3624 18-7095
Sierra
$37.39 $26.35Sierra Carb Kt Volvo 834895 55-3624 18-7095- Part Number:
- 47-7095
- Availability:
- In Stock - Ships same or next business day.
- OEM #:
- Merc 1397-7539 - -7540 - -7544 - -8535 - -9723 - 823426A1 - OMC 383918 - 983864 - Volvo 834985-4
$37.39 $26.35 -
Sierra Carb Repair Kit (Yamaha) 18-7759
Sierra
$202.99 $164.99Sierra Carb Repair Kit (Yamaha) 18-7759- Part Number:
- 47-7759
- Availability:
- In Stock - Ships same or next business day.
$202.99 $164.99 -
Sold Out, please call for ETA.
Sierra Carburetor-New Mercarb 2Bbl V6 18-7373N
Sierra
$502.69 $309.16Sierra Carburetor-New Mercarb 2Bbl V6 18-7373NSkip the rebuild and replace your troublesome old carburetor with a brand new Sierra carburetor to restore the performance and fuel economy of your engine. Brand new Sierra carburetors are built to original...- Part Number:
- 47-7373N
- Availability:
- In Stock - Ships same or next business day.
- Mfg:
- Mercury
- Type:
- 2V
- OEM:
- Mercruiser
- OEM #:
- 3310-864941A01
- Application:
- Mercruiser 2002-2004
4.3L engines (s/n OM615000-OW300012)
$502.69 $309.16 -
Sierra Clutch Housing Seal Kit 18-2698
Sierra
$47.89 $32.98Sierra Clutch Housing Seal Kit 18-2698- Part Number:
- 47-2698
- Availability:
- In Stock - Ships same or next business day.
$47.89 $32.98 -
Sierra Conversion Kit-Mallory Yl-Yd 8 18-5296-2
Sierra
$259.89 $184.70Sierra Conversion Kit-Mallory Yl-Yd 8 18-5296-2- Part Number:
- 47-52962
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Chris-Craft - Crusader - Pleasurecraft - Mercruiser - OMC Sterndrive/Cobra - Most Mallory YL & YD 8 cylinder - with clockwise and counter clockwise rotating distributors
$259.89 $184.70 -
Sierra Elbow-Exhaust 3In Crusader# 98068 18-1934
Sierra
$326.09 $252.22Sierra Elbow-Exhaust 3In Crusader# 98068 18-1934Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1934
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Crusader 98068
$326.09 $252.22 -
Sierra Exhaust Elbow Mounting Kit 18-8504
Sierra
$19.39 $14.43Sierra Exhaust Elbow Mounting Kit 18-8504- Part Number:
- 47-8504
- Availability:
- In Stock - Ships same or next business day.
$19.39 $14.43 -
Sierra Filter Oil/BRP #484839 18-7916
Sierra
$14.09 $9.74Sierra Filter Oil/BRP #484839 18-7916Please see manufacturer application guide for complete application references.- Part Number:
- 47-7916
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Johnson Evinrude: 434839
$14.09 $9.74 -
Sierra Filter-Diesel Vp#3583443 18-8125
Sierra
$47.19 $43.38Sierra Filter-Diesel Vp#3583443 18-8125- Part Number:
- 47-8125
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Volvo 3583443
$47.19 $43.38 -
Sold Out, please call for ETA.
Sierra Fuel Filter - Universal 18-7724
Sierra
$7.79 $6.54Sierra Fuel Filter - Universal 18-7724- Part Number:
- 47-7724
- Availability:
- In Stock - Ships same or next business day.
$7.79 $6.54 -
Sierra Fuel Filter 10M W/ Clr Bowl 18-7928-1
Sierra
$69.09 $56.40Sierra Fuel Filter 10M W/ Clr Bowl 18-7928-1- Part Number:
- 47-79281
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Filter & Clear Bowl
- Replaces:
- Racor B32013 (fits Merc -Yamaha)
$69.09 $56.40 -
Sierra Fuel Filter-Volvo#3825133 18-7942
Sierra
$19.49 $17.19Sierra Fuel Filter-Volvo#3825133 18-7942- Part Number:
- 47-7942
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Volvo 466987 -
3825133
$19.49 $17.19
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.