Aftermarket Parts
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Sold Out, please call for ETA.
Sierra Eclipse-2Nd Eng Gauge Set-Ob 69725P
Sierra
$138.69 $1.30Sierra Eclipse-2Nd Eng Gauge Set-Ob 69725PSmart 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:
- 11-69725P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- -
- Type:
- Outboard 2 Gauge Set - Tach (to 7 -000 rpm) - Voltmeter (8-18 VDC 12-volt systems)
- Sender Code:
- C - D - F
$138.69 $1.30 -
Sold Out, please call for ETA.
Sierra Ej Fuel Pump Kit 432962 18-7822
Sierra
$30.69 $22.34Sierra Ej Fuel Pump Kit 432962 18-7822- Part Number:
- 47-7822
- Availability:
- In Stock - Ships same or next business day.
$30.69 $22.34 -
Sierra Elb Chrysler 3 20Deg 3527794 18-1946
Sierra
$140.29 $125.94Sierra Elb Chrysler 3 20Deg 3527794 18-1946Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1946
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Chrysler I/B 3527794
$140.29 $125.94 -
Sold Out, please call for ETA.
Sierra Elbow 18-3290
Sierra
$5.19 $1.30Sierra Elbow 18-3290- Part Number:
- 47-3290
- Availability:
- In Stock - Ships same or next business day.
$5.19 $1.30 -
Sold Out, please call for ETA.
Sierra Elbow Crusader Oe# 97624 18-1924
Sierra
$0.00Sierra Elbow Crusader Oe# 97624 18-1924Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1924
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Crusader 97624
$0.00 -
Sold Out, please call for ETA.
Sierra Elbow Exh-Repl Nla MerCruiser #55538A 2 18-1973
Sierra
$310.19 $29.90Sierra Elbow Exh-Repl Nla MerCruiser #55538A 2 18-1973Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1973
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Mercruiser 55538A2
$310.19 $29.90 -
Sierra Elbow Exh-Vp#855384-4 & 856891 18-1935-1
Sierra
$242.89 $202.61Sierra Elbow Exh-Vp#855384-4 & 856891 18-1935-1Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-19351
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Volvo 855384-4 - 856891
$242.89 $202.61 -
Sold Out, please call for ETA.
Sierra Elbow Exhaust - Barr#20-0100 18-1939
Sierra
$288.29 $242.64Sierra Elbow Exhaust - Barr#20-0100 18-1939Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1939
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Barr 20-0100 - Marine Power 0992-593
$288.29 $242.64 -
Sold Out, please call for ETA.
Sierra Elbow-3 0Deg Nla Mp98502A 2 18-1974-1
Sierra
$444.49 $349.20Sierra Elbow-3 0Deg Nla Mp98502A 2 18-1974-1Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-19741
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Mercruiser 98502A2
$444.49 $349.20 -
Sold Out, please call for ETA.
Sierra Elbow-Exhaust 3In Pcm# Ro29001 18-1899
Sierra
$355.99 $273.05Sierra Elbow-Exhaust 3In Pcm# Ro29001 18-1899Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1899
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Pleasurecraft RO29001
$355.99 $273.05 -
Sold Out, please call for ETA.
Sierra Elbow-Exhaust OMC# 987784 18-1922
Sierra
$12.80Sierra Elbow-Exhaust OMC# 987784 18-1922Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1922
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- OMC Sterndrive Cobra 987784
$12.80 -
Sold Out, please call for ETA.
Sierra Elbow-Repl Nla MerCruiser #76771A2/A3 18-1978
Sierra
$217.59 $175.72Sierra Elbow-Repl Nla MerCruiser #76771A2/A3 18-1978Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-1978
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Mercruiser 76771A3 - A2
$217.59 $175.72 -
Sold Out, please call for ETA.
Sierra Elbow-Tell Tale Hose Brp331894 18-3566
Sierra
$7.59 $1.30Sierra Elbow-Tell Tale Hose Brp331894 18-3566- Part Number:
- 47-3566
- Availability:
- In Stock - Ships same or next business day.
$7.59 $1.30 -
Sold Out, please call for ETA.
Sierra Electronic Conversion Kit 18-5292
Sierra
$197.19 $1.30Sierra Electronic Conversion Kit 18-5292- Part Number:
- 47-5292
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Volvo - 4 cylinder Volvo AQ models with Bosch ignition (distributor #0231178017)
$197.19 $1.30 -
Sold Out, please call for ETA.
Sierra Electronic Conversion Kit Pres V8 18-5298
Sierra
$202.59 $1.30Sierra Electronic Conversion Kit Pres V8 18-5298- Part Number:
- 47-5298
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercruiser - OMC Sterndrive/Cobra - Most Prestolite V8 distributors (includes snap down cap)
$202.59 $1.30 -
Sierra Electronic Ignition Pickup 18-5103
Sierra
$65.69 $60.57Sierra Electronic Ignition Pickup 18-5103Replaces point & condensers for true solid state ignition.- Part Number:
- 47-5103
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 3780600
$65.69 $60.57 -
Sold Out, please call for ETA.
Sierra Engine Coupler- OMC#984629 18-21755
Sierra
$9.25Sierra Engine Coupler- OMC#984629 18-21755- Part Number:
- 47-21755
- Availability:
- In Stock - Ships same or next business day.
$9.25 -
Sold Out, please call for ETA.
Sierra Exhaust Cover Gasket 18-1218
Sierra
$0.00Sierra Exhaust Cover Gasket 18-1218- Part Number:
- 47-1218
- Availability:
- In Stock - Ships same or next business day.
$0.00 -
Sold Out, please call for ETA.
Sierra Exhaust Elbow Gasket 18-0470
Sierra
$0.00Sierra Exhaust Elbow Gasket 18-0470- Part Number:
- 47-0470
- Availability:
- In Stock - Ships same or next business day.
$0.00 -
Sold Out, please call for ETA.
Sierra Exhaust Elbow Gasket 18-0471
Sierra
$17.09 $12.65Sierra Exhaust Elbow Gasket 18-0471- Part Number:
- 47-0471
- Availability:
- In Stock - Ships same or next business day.
$17.09 $12.65
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.