Aftermarket Parts
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Seachoice Brass Tank Elbow-3/8 x 90Deg. 20841
Seachoice
$10.99 $6.56Seachoice Brass Tank Elbow-3/8 x 90Deg20841 Designed for use where vertical space is limitedReplaces 3/8" plug on fuel tank.- Part Number:
- 50-20841
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 3/8" NPT
$10.99 $6.56 -
Seachoice Brass Tee-1/4-Female Thread 20891
Seachoice
$12.99 $7.43Seachoice Brass Tee-1/4-Female Thread 20891 NOT TO BE USED IN POTABLE WATER SYSTEMS. • Used to withdraw fuel from a single tank for dual motors or to withdraw fuel from dual tanks for a single motor.- Part Number:
- 50-20891
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Female
- Thread:
- 1/4" NPT
$12.99 $7.43 -
Seachoice Fuel Conn - Omc 1/4 Npt 20511
Seachoice
$11.59 $8.38Seachoice Fuel Conn - Omc 1/4 Npt 20511 Precision engineered fuel connectors- Part Number:
- 50-20511
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Tank Fitting - Male
- Fits:
- OMC (Evinrude/Johnson)
- Material:
- Brass
- Type:
- Deluxe
- Thread:
- 1/4" NPT
- Hose:
- -
$11.59 $8.38 -
Seachoice Fuel Conn-Chry. Male-1/4 Npt 20691
Seachoice
$9.49 $7.38Seachoice Fuel Conn-ChryMale-1/4 Npt 20691 Precision engineered fuel connectors- Part Number:
- 50-20691
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Tank Fitting - Male
- Fits:
- Chrysler/Force
- Material:
- CP Brass
- Type:
- Deluxe
- Thread:
- 1/4" NPT
- Hose:
- -
$9.49 $7.38 -
Seachoice Fuel Conn-Female Yam 3/8 20661
Seachoice
$8.19 $6.67Seachoice Fuel Conn-Female Yam 3/8 20661 Precision engineered fuel connectors- Part Number:
- 50-20661
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose Fitting - Female
- Fits:
- Yamaha/Mercury/Mariner
- Material:
- Hi-Impact Nylon
- Type:
- Deluxe
- Thread:
- -
- Hose:
- 3/8" Barb
$8.19 $6.67 -
Seachoice Fuel Conn-Honda-Fem 3/8" Barb 20461
Seachoice
$17.99 $12.67Seachoice Fuel Conn-Honda-Fem 3/8" Barb 20461 Precision engineered fuel connectors- Part Number:
- 50-20461
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose Fitting - Female
- Fits:
- Honda
- Material:
- Brass
- Type:
- Deluxe
- Thread:
- -
- Hose:
- 3/8" Barb
$17.99 $12.67 -
Seachoice Fuel Conn-Male Yam/Merc/Mar 20651
Seachoice
$12.55 $9.30Seachoice Fuel Conn-Male Yam/Merc/Mar 20651 Precision engineered fuel connectors- Part Number:
- 50-20651
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Tank Fitting - Male
- Fits:
- Yamaha/Mercury/Mariner
- Material:
- Brass
- Type:
- Deluxe
- Thread:
- 1/4" NPT
- Hose:
- -
$12.55 $9.30 -
Seachoice Fuel Elbow 90 Deg 1/4 x 3/8Np 20881
Seachoice
$10.49 $8.21Seachoice Fuel Elbow 90 Deg 1/4 x 3/8Np 20881 All brass machined fittingsIdeal for fuel fitting applicationsExcellent for use with fuel/water separator where space is limited.- Part Number:
- 50-20881
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 3/8" NPT
- Hose:
- 1/4"
$10.49 $8.21 -
Seachoice Fuel Elbow 90Deg 5/16 x 3/8Np 20871
Seachoice
$10.79 $8.06Seachoice Fuel Elbow 90Deg 5/16 x 3/8Np 20871 All brass machined fittingsIdeal for fuel fitting applicationsExcellent for use with fuel/water separator where space is limited.- Part Number:
- 50-20871
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 3/8" NPT
- Hose:
- 5/16"
$10.79 $8.06 -
Seachoice Fuel Line Yam Low Perm 21381
Seachoice
$49.81 $33.88Seachoice Fuel Line Yam Low Perm 21381 Meets all EPA, CARB, USCG and ABYC Requirements • • Includes: Low permeation primer bulb, fuel line fittings, stainless steel hose clamps and 3/8" heavy duty, kink resistant fuel line...- Part Number:
- 50-21381
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Yamaha
- Size:
- 3/8" x 7'
$49.81 $33.88 -
Seachoice Fuel Tank Hold Down Kit 78991
Seachoice
$14.49 $9.49Seachoice Fuel Tank Hold Down Kit 78991 Two 63" poly straps with quick release bucklesMounting hardware included.- Part Number:
- 50-78991
- Availability:
- In Stock - Ships same or next business day.
- Pack:
- 1 pr.
$14.49 $9.49 -
Seachoice Male Hose Barb-1/4 x 1/4 Npt 20801
Seachoice
$4.19 $3.68Seachoice Male Hose Barb-1/4 x 1/4 Npt 20801 NOT TO BE USED IN POTABLE WATER SYSTEMS. • All brass machined fittingsIdeal for fuel fitting applications.- Part Number:
- 50-20801
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 1/4" NPT
- Hose:
- 1/4"
$4.19 $3.68 -
Seachoice Male Hose Barb-1/4 x 3/8 Npt 20771
Seachoice
$6.24 $5.36Seachoice Male Hose Barb-1/4 x 3/8 Npt 20771 NOT TO BE USED IN POTABLE WATER SYSTEMS. • All brass machined fittingsIdeal for fuel fitting applications.- Part Number:
- 50-20771
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 3/8" NPT
- Hose:
- 1/4"
$6.24 $5.36 -
Seachoice Male Hose Barb-5/16 x 3/8 Np 20781
Seachoice
$5.83 $5.19Seachoice Male Hose Barb-5/16 x 3/8 Np 20781 NOT TO BE USED IN POTABLE WATER SYSTEMS. • All brass machined fittingsIdeal for fuel fitting applications.- Part Number:
- 50-20781
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 3/8" NPT
- Hose:
- 5/16"
$5.83 $5.19 -
Seachoice Merc 3/8 Engine Fitting 20571
Seachoice
$12.24 $9.10Seachoice Merc 3/8 Engine Fitting 20571 Precision engineered fuel connectors- Part Number:
- 50-20571
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose Fitting - Female
- Fits:
- Mercury/Mariner ('98 & Newer)
- Material:
- Hi-Impact Nylon
- Thread:
- -
- Hose:
- 3/8" Barb
$12.24 $9.10 -
Seachoice Motrwell Boot-Vynl Plas-4 Bul 29250
Seachoice
$11.58 $8.68Seachoice Motrwell Boot-Vynl Plas-4 Bul 29250 Seals off water intake and protects cables, wiring and gas linesMade of durable vinyl plastisol.- Part Number:
- 50-29250
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 4"
- Pack:
- Bulk
$11.58 $8.68 -
Seachoice Oil To Gas Mixing Device 21000
Seachoice
$8.89 $6.50Seachoice Oil To Gas Mixing Device 21000 Oil mixture container allows the addition of the exact amount of oil required for a 2 cycle engineOil level marks are in gallons and litresDetermines ratios for 100:1, 50:1, 24:1 and 10:1 mixesThis wide mouth,...- Part Number:
- 50-21000
- Availability:
- In Stock - Ships same or next business day.
- Pack:
- Bulk
$8.89 $6.50 -
Special Order! See availaility for details
Seachoice Reed Switch 180Mm 7 50-15531
Seachoice
$81.42 $52.28Seachoice Reed Switch 180Mm 7 50-15531 Compatible with most fuel gauges on the market today, with 33 (full) and 240 (empty) ohm gauges, and no moving mechanical parts makes them extremely durableOur senders feature stainless steel immersion tubes,...- Part Number:
- 50-15531
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 7"
$81.42 $52.28 -
Special Order! See availaility for details
Seachoice Reed Switch 200Mm 8 50-15541
Seachoice
$81.42 $52.28Seachoice Reed Switch 200Mm 8 50-15541 Compatible with most fuel gauges on the market today, with 33 (full) and 240 (empty) ohm gauges, and no moving mechanical parts makes them extremely durableOur senders feature stainless steel immersion tubes,...- Part Number:
- 50-15541
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 8"
$81.42 $52.28 -
Special Order! See availaility for details
Seachoice Reed Switch 450Mm 18 50-15571
Seachoice
$118.60 $74.98Seachoice Reed Switch 450Mm 18 50-15571 Compatible with most fuel gauges on the market today, with 33 (full) and 240 (empty) ohm gauges, and no moving mechanical parts makes them extremely durableOur senders feature stainless steel immersion tubes,...- Part Number:
- 50-15571
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 18"
$118.60 $74.98
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.