Aftermarket Parts
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Sierra Fuel Pump Chrys I.B. 3745414 18-7254
Sierra
$204.29 $154.99Sierra Fuel Pump Chrys I.B. 3745414 18-7254- Part Number:
- 47-7254
- Availability:
- In Stock - Ships same or next business day.
$204.29 $154.99 -
Sierra Fuel Pump E/J 438556 18-7352
Sierra
$111.99 $64.99Sierra Fuel Pump E/J 438556 18-7352- Part Number:
- 47-7352
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Fits: 25-55 hp (1976-89) - non-VRO
- Replaces:
- 438556 - 382354 - 385781 - 388268 - 394543 - 395713 - 398338 - 398387 - 432451 - 433387
$111.99 $64.99 -
Sierra Fuel Pump Kit F2A24747-1 18-7805
Sierra
$13.79 $12.99Sierra Fuel Pump Kit F2A24747-1 18-7805- Part Number:
- 47-7805
- Availability:
- In Stock - Ships same or next business day.
$13.79 $12.99 -
Sierra Fuel Tester-Gasoline 18-79816
Sierra
$13.09 $12.99Sierra Fuel Tester-Gasoline 18-79816Tests quality of fuel by measuring alcohol content.- Part Number:
- 47-79816
- Availability:
- In Stock - Ships same or next business day.
$13.09 $12.99 -
Sierra Gasket Carburetor Ym6E514198A100 18-0785
Sierra
$12.79 $8.99Sierra Gasket Carburetor Ym6E514198A100 18-0785- Part Number:
- 47-0785
- Availability:
- In Stock - Ships same or next business day.
$12.79 $8.99 -
Sierra Gasket Cylhd.3.7L/Fd460 27-13709 18-3878
Sierra
$51.69 $39.13Sierra Gasket Cylhd.3.7L/Fd460 27-13709 18-3878- Part Number:
- 47-3878
- Availability:
- In Stock - Ships same or next business day.
$51.69 $39.13 -
Sold Out, please call for ETA.
Sierra Gasket-Push Rod Cover GM 3.0L 18-2815
Sierra
$32.59 $24.57Sierra Gasket-Push Rod Cover GM 3.0L 18-2815- Part Number:
- 47-2815
- Availability:
- In Stock - Ships same or next business day.
$32.59 $24.57 -
Sierra Impeller Kit 18-3244
Sierra
$42.69 $31.84Sierra Impeller Kit 18-3244- Part Number:
- 47-3244
- Availability:
- In Stock - Ships same or next business day.
$42.69 $31.84 -
Sierra Impeller Kit-Kohler# 359978 23-3314
Sierra
$39.29 $37.30Sierra Impeller Kit-Kohler# 359978 23-3314- Part Number:
- 47-233314
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Kohler 359978
- Fits:
- Kohler Pump GM28487 - Fits Models 4EF - 5E - 6EF - 7.3E - 4 EFCD - 5 ECD - 6 EFCD - 7.3 ECD -
$39.29 $37.30 -
Sierra Impeller Kit-Vp#21213660 18-3276-1
Sierra
$66.59 $49.99Sierra Impeller Kit-Vp#21213660 18-3276-1- Part Number:
- 47-32761
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- Volvo (1999 and Later)
- Replaces:
- 3862567 - 21213660
$66.59 $49.99 -
Sierra Lido 2 Trim Gauge 65504P
Sierra
$52.89 $41.38Sierra Lido 2 Trim Gauge 65504PFeatures include: Black graphics on a white face with chrome ring and a black pointer with fire-orange tip. Scratch resistant curved glass lens with polished stainless steel; near-flush bezel. white perimeter and red...- Part Number:
- 11-65504P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 2"
- Type:
- Trim - Mariner/Merc/Cobra/Volvo DP - SX - Yamaha 2001-Date
- Dial Range:
- Up-Down
- Sender Code:
- Engine Mfg.
$52.89 $41.38 -
Sierra Lido 3 Tachometer 7K Rpm 65693P
Sierra
$132.59 $91.60Sierra Lido 3 Tachometer 7K Rpm 65693PFeatures include: Black graphics on a white face with chrome ring and a black pointer with fire-orange tip. Scratch resistant curved glass lens with polished stainless steel; near-flush bezel. white perimeter and red...- Part Number:
- 11-65693P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3"
- Type:
- Tach - Elec - O/B & 4-Stroke Gas
- Dial Range:
- 0-7000
- Sender Code:
- O/B Alt or Coil
$132.59 $91.60 -
Sierra Manifold-GM 5.0-5.7L Vp#856883 18-1931-1
Sierra
$489.39 $354.99Sierra Manifold-GM 5.0-5.7L Vp#856883 18-1931-1Sierra manifolds are painted; packaged and leak tested.- Part Number:
- 47-19311
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Volvo 835804 - 856883
- Application:
- Port & Starboard - AQ200D - 200F - 225D - 225E - 225F - 255B - 260A - 271A - 280A - 290A -
311A - AQ500 - 570 - BB225 - 225AV - 225B - 260A - 260AV - 260B - 260C (mounting package included).
Uses mounting kit 8511
$489.39 $354.99 -
Sierra Marine Flame-Thrower 40000 Volt Hi-Performance Ignition Coil 18-5466
Sierra
$118.39 $93.99Sierra Marine Flame-Thrower 40000 Volt Hi-Performance Ignition Coil 18-5466- Part Number:
- 47-5466
- Availability:
- In Stock - Ships same or next business day.
$118.39 $93.99 -
Sierra Marine Gear Lube High Performance 5 Gallon 18-9650-5
Sierra
$314.49 $229.99Sierra Gear Lube-Hi Perf 5Gal 18-9650-5Reduces operating friction for increased performance and protection of gears; bearings; and other gear case components. Recommended for use in high performance and highload operating conditions in both outboard and...- Part Number:
- 47-96505
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 5 Gallons
$314.49 $229.99 -
Sierra Mounting Kit Crusader 18-8515
Sierra
$22.19 $17.13Sierra Mounting Kit Crusader 18-8515- Part Number:
- 47-8515
- Availability:
- In Stock - Ships same or next business day.
$22.19 $17.13 -
Sierra Mounting Kit Crusader 18-8547
Sierra
$26.49Sierra Mounting Kit Crusader 18-8547- Part Number:
- 47-8547
- Availability:
- In Stock - Ships same or next business day.
$26.49 -
Sierra Mounting Kit-Exhaust Manifold Vp5.0-5.7L 18-8511
Sierra
$47.99 $34.80Sierra Mounting Kit-Exhaust Manifold Vp5.0-5.7L 18-8511- Part Number:
- 47-8511
- Availability:
- In Stock - Ships same or next business day.
$47.99 $34.80 -
Sierra Needle Valve MerCruiser #1395-9022 18-7295
Sierra
$10.49 $8.46Sierra Needle Valve MerCruiser #1395-9022 18-7295- Part Number:
- 47-7295
- Availability:
- In Stock - Ships same or next business day.
$10.49 $8.46 -
Sierra Needle Valve Yamaha #6E8-14390-12 18-7056
Sierra
$26.69 $21.06Sierra Needle Valve Yamaha #6E8-14390-12 18-7056- Part Number:
- 47-7056
- Availability:
- In Stock - Ships same or next business day.
$26.69 $21.06
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.