Aftermarket Parts
-
Seloc Publishing Manual MerCruiser 64-91 Gas & Sterndrive 3200
Seloc Publishing
$61.49 $55.99Seloc Publishing Manual MerCruiser 64-91 Gas & Sterndrive 3200The only marine tune-up manuals to be certified by the engine manufacturers as accurate and complete. Seloc uses easy to understand, step-by-step, illustrated procedures for the complete...- Part Number:
- 230-3200
- Availability:
- In Stock - Ships same or next business day.
- Type:
- Mercruiser Sterndrives
- Description:
- All Gas Engines & Sterndrives
- Year:
- 1964-1991
$61.49 $55.99 -
Sierra 09-812B Impeller 18-3306
Sierra
$79.09 $42.99Sierra 09-812B Impeller 18-330612 fin Neoprene - spline- Part Number:
- 47-3306
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 09-812B
- Depth:
- 1-15/16"
- Dia.:
- 2-1/4"
- Shaft:
- 3/4" Dia.
$79.09 $42.99 -
Sierra 580148 J/E Contact Set 18-5156
Sierra
$21.69 $15.99Sierra 580148 J/E Contact Set 18-5156- Part Number:
- 47-5156
- Availability:
- In Stock - Ships same or next business day.
$21.69 $15.99 -
Sierra Amega Gauge-Water Temp I/O-I/B 57904P
Sierra
$76.89 $59.99Sierra Amega Gauge-Water Temp I/O-I/B 57904PSmart white and red graphics on a black dial background; these very low profile bezels follow the curve of the lenses to eliminate water trapping. Design with domed glass sheds water and resists scratching...- Part Number:
- 11-57904P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Water Temp Gauge - Inboard/Outboard
- Dial Range:
- 120 Deg --240 Deg -F
- Sender Code:
- D
$76.89 $59.99 -
Sierra Bearing-Gimbal Mc-Vp 388555 18-21001
Sierra
$124.89 $74.99Sierra Bearing-Gimbal Mc-Vp 388555 18-21001Refer to the Sierra catalog for complete application information.- Part Number:
- 47-21001
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- Mercruiser Stern Drives
- Replaces:
- 30-879194A02
$124.89 $74.99 -
Sierra Belt MerCruiser 57-69143Q OMC 311606 18-15400
Sierra
$34.59 $23.16Sierra Belt MerCruiser 57-69143Q OMC 311606 18-15400High strength synthetic cords resist shockload failure.The compression section is a special rubber compound that assures smooth and even transfer of load forces to the cords.Cogs are molded to precise...- Part Number:
- 47-15400
- Availability:
- In Stock - Ships same or next business day.
- Eff. Length:
- 40"
- Top Width:
- 29/64"
- OEM #:
- 57-32850 - 57-69143T - OMC 311606
$34.59 $23.16 -
Sierra C-Water Pump Kit-Mc & Mercury 18-3317
Sierra
$79.69 $61.50Sierra C-Water Pump Kit-Mc & Mercury 18-3317- Part Number:
- 47-3317
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 46 96148A 8
$79.69 $61.50 -
Sierra Carburetor Rochester 4 Bbl 18-7615-1
Sierra
$935.49 $709.99Sierra Carburetor Rochester 4 Bbl 18-7615-1Sierra's marine aftermarket for high quality remanufactured carburetors. With carefully selected cores that are brought back to exacting OEM specifications. Each unit is flow tested to ensure proper operation...- Part Number:
- 47-76151
- Availability:
- In Stock - Ships same or next business day.
- Mfg:
- Rochester
- Mfg #:
- 17057298 - 17059280 -
17059288 - 17080561 -
17085013 - Type:
- R4/4MV
- OEM:
- Mercruiser/OMC
- OEM #:
- 1347-804624R02/985822
- Application:
- MCM 250/255/260/5.7L (1975-1991) -
OMC 3.8L/4.3L/5.0L/5.7L/305/350
& 454 (1977-1989) - 300MR/TRS
$935.49 $709.99 -
Sierra Elbow Exh-Omc/Vp#3855270-9 18-1909-1
Sierra
$384.49 $299.99Sierra Elbow Exh-Omc/Vp#3855270-9 18-1909-1Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-19091
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- OMC Sterndrive/Cobra 913784 - 3855270 - 3850456 - 3857944 and Volvo 3855270-9 - 3857944-7 - 3863061
$384.49 $299.99 -
Sierra Engine Coupler-Omc/Vp#3858437 18-21752-1
Sierra
$381.89 $284.99Sierra Engine Coupler-Omc/Vp#3858437 18-21752-1- Part Number:
- 47-217521
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Engine Coupler - Replaces OMC 3858437 - 986120 - 3853917 - 984290
$381.89 $284.99 -
Sierra Filter Fuel W/Brkt 3/8 18-7857-1
Sierra
$15.09 $10.63Sierra Filter Fuel W/Brkt 3/8 18-7857-1- Part Number:
- 47-78571
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- A.C. Delco GF-61P
- Application:
- 3/8" Fuel line
$15.09 $10.63 -
Sierra Filter oil Vp 834337 18-7884
Sierra
$17.99 $14.18Sierra Filteroil Vp 834337 18-7884Epoxy coating on all canisters for corrosion resistanceHeavy-wall steel canister for further corrosion protectionHigh-efficiency filter media that meets or exceeds the OE's filtrationBacked by Sierra's industry leading...- Part Number:
- 47-7884
- Availability:
- In Stock - Ships same or next business day.
- Application:
- 3/4" x 16 NPT Thread
- Replaces:
- Universal: 299381 - Volvo 834337
- Note:
- 1
$17.99 $14.18 -
Sierra Filter-Water Separator OMC 10M 18-7946
Sierra
$13.99 $12.99Sierra Filter-Water Separator OMC 10M 18-7946Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. All filters flow @ 90 GPH to feed even the hungriest motor.Clear Bowls: Use for outboard and above deck installations...- Part Number:
- 47-7946
- Availability:
- In Stock - Ships same or next business day.
- Type:
- 10 MIcron
- Replaces:
- OMC 502905
$13.99 $12.99 -
Sierra Gasket Set-Honda#16010-Zv4-005 18-2480
Sierra
$19.39 $15.99Sierra Gasket Set-Honda#16010-Zv4-005 18-2480- Part Number:
- 47-2480
- Availability:
- In Stock - Ships same or next business day.
$19.39 $15.99 -
Sierra Hourmeter Small Engine 56968P
Sierra
$59.19 $51.99Sierra Hourmeter Small Engine 56968PAllows hour monitoring for even the smallest gasoline motors. Great for 2 or 4 stroke. No power or ground required. Water and shock proof. Automatically turns on and off with the engine. Displays up to 9999 hours. 10...- Part Number:
- 47-56968P
- Availability:
- In Stock - Ships same or next business day.
$59.19 $51.99 -
Sierra Water Pump Kit E/J OMC#5001595 18-3315-2
Sierra
$98.09 $69.99Sierra Water Pump Kit E/J OMC#5001595 18-3315-2For: 90/115SL (1995-Up); 120/125ESX (1993-94); 120/130/140/150/175/V6/V8 (1993-Up); OMC 435929; 5001595.- Part Number:
- 47-33152
- Availability:
- In Stock - Ships same or next business day.
$98.09 $69.99 -
Sierra Wire Set GM 4.3L V6 Electronic 18-8810-1
Sierra
$61.79 $49.99Sierra Wire Set GM 4.3L V6 Electronic 18-8810-1Magnetic 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:
- 47-88101
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Flagship - Indmar - Marine Power & Mastercraft - 262 - 4.3L EST - EFI 6 cylinder. Mercruiser - 262 - 4.3L - & 4.3XL & EFI (TBI) - V6 - Thunderbolt ignition
$61.79 $49.99 -
STA-BIL Gas Stabilizer 32oz 22214
STA-BIL
$24.99 $17.32STA-BIL Gas Stabilizer 32oz 22214 Keeps fuel fresh for quick, easy starts after storage Removes water according to OEM specs to prevent corrosion Cleans carburetors and fuel injectors Protects engine from gum, varnish, rust, and corrosion ...- Part Number:
- 269-22214
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 32 oz.
- Treats:
- 80 gal.
$24.99 $17.32 -
Starbrite Adaptor Nissan Yamaha Tohatsu and Honda Lower Unit 28401
Starbrite
$15.69 $9.99Starbrite Adaptor Nissan Yamaha Tohatsu and Honda Lower Unit 28401 Quick, easy and clean way to change marine lower unit gear lube For use with all 8 fl. oz. and 10 fl. oz. squeeze tubes (28600). Flexible hose gets to hard-to-reach fill plugs...- Part Number:
- 74-28401
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Adapter for Yamaha - Nissan - Tohatsu & Honda (2-50hp)
$15.69 $9.99 -
Starbrite Fogging Oil 12 Oz 84812
Starbrite
$15.59 $10.65Starbrite Fogging Oil 12 Oz 84812 • Prevents corrosion when storing inboard or outboard engines for an extended period of time• Special formula makes starting engine after storage quick and easy- Part Number:
- 74-84812
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 12 oz.
$15.59 $10.65
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.