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Outboard Motor Parts | Mercury, Yamaha, Suzuki & More

Shop outboard motor parts for maintenance, repair, troubleshooting, and full marine engine rebuild projects. This category includes OEM parts and quality OEM specification aftermarket products from Pro Marine, along with replacement marine parts for Chrysler Force, Honda, Johnson Evinrude E-tec, Mercury, Suzuki, Tohatsu Nissan, and Yamaha outboard engines.

Use this section to browse outboard parts by brand and engine system, including cooling, fuel delivery, ignition and electrical, intake, internal engine components, lower unit parts, steering, trim, transom, midsection, engine oil, service kits, gaskets, seals, carburetor parts, water pump parts, and rebuild components.

 

Shop Outboard Categories

 

Common Outboard Parts Found in This Category

  • Water pump kits, impellers, thermostats, and cooling system parts
  • Carburetor kits, fuel pumps, fuel filters, and fuel system components
  • Ignition coils, stators, switch boxes, rectifiers, sensors, and electrical parts
  • Pistons, piston rings, bearings, crankshafts, sleeves, gaskets, and rebuild parts
  • Lower unit seals, bearings, gears, driveshaft parts, and gearcase components
  • Steering parts, control cables, trim parts, and transom components
  • Engine oil, gear lube, service kits, spark plugs, seal kits, and routine maintenance parts
 

Common Outboard Problems and Where to Start

  • Overheating: inspect the water pump, impeller, thermostat, cooling passages, and engine anodes.
  • Hard starting or rough idle: check carburetor parts, fuel delivery, ignition components, spark plugs, and intake sealing.
  • Weak spark or no spark: test ignition coils, stators, switch boxes, sensors, wiring, and related electrical components.
  • Low compression or poor power: inspect pistons, rings, gaskets, cylinder condition, bearings, and internal engine components.
  • Milky gear lube or gearcase noise: check lower unit seals, bearings, gears, driveshaft parts, and prop shaft components.
 

Frequently Asked Questions

What is the difference between OEM and aftermarket outboard parts?

OEM parts are made by the original engine manufacturer. Aftermarket parts are replacement parts made by other manufacturers to fit the same application. Pro Marine provides quality OEM specification aftermarket products designed for marine maintenance, repair, and rebuild work.

How do I find parts for my outboard engine?

Start by selecting your outboard brand, then choose the correct engine system category. Use your model number, serial number, horsepower, and year range to confirm fitment before ordering parts.

What information do I need before ordering outboard parts?

You should have the engine manufacturer, horsepower, model number, serial number, and any OEM part numbers from the original component when available. This helps avoid ordering parts that look similar but fit a different engine family.

Are aftermarket outboard parts reliable?

Yes, quality aftermarket outboard parts are commonly used by marine mechanics and rebuilders. Pro Marine offers OEM specification aftermarket products for many common outboard repair, maintenance, and rebuild applications.

What brands are included in the outboard category?

This category includes Chrysler Force, Honda, Johnson Evinrude E-tec, Mercury, Suzuki, Tohatsu Nissan, and Yamaha outboard parts.

 

Tip: Before ordering outboard parts, confirm your engine brand, horsepower, model number, serial number, and year range whenever possible.

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Mercury 2.5L Bottom Guided Bore 3.500
Item#:
3124PS
Cross Reference#:
9737A2
9737A4
9737T4
Manufacturer Item:
9737T4
Manufacturer:
Wiseco
Available:
In Stock
Your Price:
193.76
Each
Mercury 2.5L Bottom Guided Bore 3.500
This item has been discontinued and replaced by item 
Item#:
2400SV
Cross Reference#:
9738A2
9738A4
9738T4
Manufacturer Item:
785-9738T4
Manufacturer:
Mercury Marine
Available:
Special Order
Your Price:
126.56
Each
This item is discontinued
Mercury 2.5L Bottom Guided Bore 3.500
Item#:
3124SS
Cross Reference#:
9738A2
9738A4
9738T4
Manufacturer Item:
9738T4
Manufacturer:
Wiseco
Available:
In Stock
Your Price:
193.76
Each
Mercury 2.5L Bottom Guided Bore 3.515
Item#:
2415PV
Cross Reference#:
9737A10
9737A8
Manufacturer Item:
785-9737A8
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
126.56
Each
Mercury 2.5L Bottom Guided Bore 3.515
This item has been discontinued and replaced by item 
Item#:
2415SV
Cross Reference#:
9738A10
9738A8
9738T10
Manufacturer Item:
785-9738A8
Manufacturer:
Mercury Marine
Available:
Special Order
Your Price:
126.56
Each
This item is discontinued
Mercury 2.5L Bottom Guided Bore 3.530
This item has been discontinued and replaced by item 
Item#:
2430PV
Manufacturer:
Mercury Marine
Available:
Special Order
Your Price:
126.56
Each
This item is discontinued
Mercury 2.5L Bottom Guided Bore 3.530
Item#:
3124P3
Manufacturer:
Wiseco
Available:
In Stock
Your Price:
193.76
Each
Mercury 2.5L Bottom Guided Bore 3.530
Item#:
3124S3
Manufacturer:
Wiseco
Available:
In Stock
Your Price:
193.76
Each
Mercury 2.5L Bottom Guided Bore 3.530
This item has been discontinued and replaced by item 
Item#:
2430SV
Manufacturer:
Mercury Marine
Available:
Special Order
Your Price:
126.56
Each
This item is discontinued
Force / Chrysler 50-130hp Bore Size 3.342
Item#:
3129P3
Cross Reference#:
FFF000987
18-4631
818130A1
834798A2
9-53102
Manufacturer Item:
818130A1
Manufacturer:
Wiseco
Available:
In Stock
Your Price:
174.12
Each
Johnson Evinrude 200-250 V6 Big Bore Finger Ported
Item#:
4300PV
Cross Reference#:
18-4190
435029
436860
5006691
Manufacturer Item:
436860
Manufacturer:
ProX
Available:
In Stock
Your Price:
111.00
Each
Johnson Evinrude 200-250 V6 Big Bore Finger Ported
Item#:
4300SV
Cross Reference#:
0435030
0436859
0778413
435030
436859
5006690
778413
Manufacturer Item:
436859
Manufacturer:
ProX
Available:
In Stock
Your Price:
111.00
Each
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