Aftermarket Parts
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Sea-Dog Line Gas Tank Vent Nylon Black 5/8" 357100-1
SEA-DOG LINE
$7.49 $7.25Sea-Dog Line Gas Tank Vent Nylon Black 5/8" 357100-1- Part Number:
- 354-3571001
- Availability:
- In Stock - Ships same or next business day.
- Material:
- Black Nylon
- A:
- 1"
- B:
- 2-1/8"
- C:
- 5/8"
- D:
- 1-1/8"
$7.49 $7.25 -
Seachoice 5/8-18 Nut Only F/2848 & 2853 28461
Seachoice
$28.32 $19.99Seachoice 5/8-18 Nut Only F/2848 & 2853 28461- Part Number:
- 50-28461
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Replacement Nut
- Size:
- 5/8"-18
$28.32 $19.99 -
Seachoice Alpha One 84-90 Kit - Aluminum 50-95001
Seachoice
$49.08 $34.41Seachoice Alpha One 84-90 Kit - Aluminum 50-95001 Cadmium free, environmentally friendly. • Aluminum: For salt and brackish waterConform to: Mil-Spec A-24779(SH) • Magnesium: For freshwater onlyConform to: Mil-Spec...- Part Number:
- 50-95001
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- 1984-1990
- Material:
- Aluminum
$49.08 $34.41 -
Seachoice Aluminum Anode Kit for 6 Cylinder Mercury Verado 95121
Seachoice
$81.28 $54.99Seachoice Verado 6 Cycl Kit - Al 50-95121 Cadmium free, environmentally friendly. • Aluminum: For salt and brackish waterConform to: Mil-Spec A-24779(SH) • Magnesium: For freshwater onlyConform to: Mil-Spec...- Part Number:
- 50-95121
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- 6 Cylinder
- Material:
- Aluminum
$81.28 $54.99 -
Seachoice Black Knob (For 2840 & 2839) 28421
Seachoice
$8.99 $6.83Seachoice Black Knob (For 2840 & 2839) 28421 Made of chrome plated brassEach separate lever controls clutch and throttle for one engineNot for dual station applicationsFunctions easily identified by red and black knobsDesigned to use 33C type control...- Part Number:
- 50-28421
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Black Knob
$8.99 $6.83 -
Seachoice Fuel Conn-Omc Female 3/8 20551
Seachoice
$11.57 $10.99Seachoice Fuel Conn-Omc Female 3/8 20551 Precision engineered fuel connectors- Part Number:
- 50-20551
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose Fitting - Female
- Fits:
- OMC (Evinrude/Johnson)
- Material:
- Hi-Impact Nylon
- Type:
- Deluxe
- Thread:
- -
- Hose:
- 3/8" Barb
$11.57 $10.99 -
Seachoice Fuel Line Merc Low Perm 21391
Seachoice
$53.50 $44.99Seachoice Fuel Line Merc Low Perm 21391 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...- Part Number:
- 50-21391
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercury
- Size:
- 3/8" x 7'
$53.50 $44.99 -
Special Order! See availaility for details
Seachoice Reed Switch 150Mm 6 50-15521
Seachoice
$81.42 $52.28Seachoice Reed Switch 150Mm 6 50-15521 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:
- 50-15521
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 6"
$81.42 $52.28 -
Seachoice Teak Center Cap For 2855 2858 28561
Seachoice
$13.99 $11.99Seachoice Teak Center Cap(For 2855 2858 28561- Part Number:
- 50-28561
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Teak Center Cap
- Fits:
- 28551/28581
$13.99 $11.99 -
Seastar 20Deg Safe-T Bezel-Blacksb27241 Sb27483P
Seastar
$47.79 $34.86Seastar 20Deg Safe-T Bezel-Blacksb27241 Sb27483P- Part Number:
- 1-SB27483P
- Availability:
- In Stock - Ships same or next business day.
- Type:
- 20 Deg -
$47.79 $34.86 -
Seastar Cable Clamp 30 Series 32010
Seastar
$9.89 $7.07Seastar Cable Clamp 30 Series 32010- Part Number:
- 1-032010
- Availability:
- In Stock - Ships same or next business day.
- Cable:
- 3300
- Description:
- Clamp
- Center:
- 7/8"
- Width:
- 1/2"
$9.89 $7.07 -
Seastar Control Ski/Jet Side Ch2200P
Seastar
$612.59 $499.99Seastar Control Ski/Jet Side Ch2200P Single lever, dual action for throttle & shift Superior neutral engine warm-up control (ski version) Flush mount design for quick, tidy installation Includes hardware for two 33 type cables Crisp...- Part Number:
- 1-CH2200P
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Side mount ski boat control
$612.59 $499.99 -
Seastar Dual Station Unit-Shift 207573
Seastar
$309.39 $210.94Seastar Dual Station Unit-Shift 207573The Dual Station (DS) unit is designed for inboard, sterndrive, or outboard boaters that like using one lever to do both throttle and shift in their dual station boat. The Station Selector allows smooth operation of...- Part Number:
- 1-207573
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Gear Shift Unit
$309.39 $210.94 -
Seastar Elbow Tube Fit.1/4P (3/Bg) Hf5538
Seastar
$46.39 $31.23Seastar Elbow Tube Fit.1/4P (3/Bg) Hf5538All Older Style SeaStar manual hydraulic steering systems. These are 3/8" compression fittings which utilize a 9/16"-24 extra fine thread. (Seastar Solutions New Updated cylinders with part numbers ending in "-3"...- Part Number:
- 1-HF5538
- Availability:
- In Stock - Ships same or next business day.
- Type:
- Street Elbow
- Material:
- Brass
- Bag:
- 3
$46.39 $31.23 -
Seastar Hose Kit-2Pc Seastar O/B 22 Ft Ho5122
Seastar
$258.49 $189.99Seastar Hose Kit-2Pc Seastar O/B 22 Ft Ho5122 Includes two hoses - can be used with all SeaStar systems, except SeaStar PRO, BayStar, Capilano and 3-line inboard systems. ID of 5/16".- Part Number:
- 1-HO5122
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 22'
- Box:
- 2
$258.49 $189.99 -
Seastar Orb Kit-Add Helm/Autopilot I/B Hf6010
Seastar
$123.99 $114.99Seastar Orb Kit-Add Helm/Autopilot I/B Hf6010 These fittings fit updated Seastar cylinders and all helm pump to use O-Ring (ORB) type fittings. Before the update all Seastar Solutions helms used NPT fittings. These 316 stainless steel fittings will...- Part Number:
- 1-HF6010
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Fitting Kit
- Fits:
- Helms
$123.99 $114.99 -
Seastar Quick Connect Converter Sa27620P
Seastar
$34.49 $22.99Seastar Quick Connect Converter Sa27620P Quick Connect II for helms with threaded spigots SA27620P (upgrades older Teleflex/Seastar Solutions rotary helms to Quick-Connect cable interface, allowing use of SSC61/SSC62 QC cables).- Part Number:
- 1-SA27620P
- Availability:
- In Stock - Ships same or next business day.
$34.49 $22.99 -
Seastar Sea Star Power Assist Hydraulic Steering Pump, 15' Harness PA13152 PA1200-3
Seastar
$3,072.19 $2,761.99DOMETIC SeaStar PA1200-3 Power Assist Hydraulic Steering Pump, 15' Harness The Dometic SeaStar Power Assist PA1200-3 is an electronically controlled gear pump integrated into the hydraulic steering system between the helm and steering cylinder. It...- Part Number:
- 1-PA12003
- Availability:
- In Stock - Ships same or next business day.
$3,072.19 $2,761.99 -
Sold Out, please call for ETA.
Seastar Seal Kit 125Em Mv Bj Atm Hs5154
Seastar
$79.09 $59.99Seastar Seal Kit 125Em Mv Bj Atm Hs5154 125 EM MV BJ ATM Includes thread locker Seal Kit for Seastar: HC5303, HC5312, HC5328, HC5329, HC5330, HC5331, HC5335, HC5338, and HC5380 steering cylinders- Part Number:
- 1-HS5154
- Availability:
- In Stock - Ships same or next business day.
$79.09 $59.99 -
Seastar Seal Kit Hs5151
Seastar
$91.69 $69.99Seastar Seal Kit Hs5151 For the SeaStar helm pump. Units prior to 1984, there is no seal kit.- Part Number:
- 1-HS5151
- Availability:
- In Stock - Ships same or next business day.
$91.69 $69.99
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.