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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
Chrysler / Force Outboard Parts for Chrysler and Force outboard repair 
Honda Outboard Honda cooling, fuel, electrical, and engine parts 
Johnson / Evinrude / E-tec Outboard OMC, Johnson, Evinrude, and E-tec parts 
Mercury Outboard Mercury and Mariner service and rebuild parts 
Suzuki Outboard Suzuki maintenance, lower unit, and engine parts 
Tohatsu / Nissan Outboard Tohatsu and Nissan outboard replacement parts 
Yamaha Outboard Yamaha service, repair, and rebuild parts 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.
90390
90390A1
GLM Marine Cooling System Component
Yamaha F115-F300 & Mercury 225 Water Pump Spacer
The GLM 9075GM Water Pump Spacer is a replacement cooling system component designed for numerous Yamaha four-stroke outboards and select Mercury FourStroke models. Replacing Yamaha OEM 61A-45538-00-00 and Mercury OEM 888690, this spacer helps maintain proper positioning of critical water pump components within the lower unit.
Whether you're rebuilding a complete water pump assembly or replacing worn cooling system components during routine maintenance, this GLM spacer offers a dependable aftermarket solution for many Yamaha and Mercury applications.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| GLM Marine | 9075GM |
| Yamaha OEM | 61A-45538-00-00 |
| Mercury OEM | 888690 |
Compatible Applications
Yamaha OEM number 61A-45538-00-00 is used across a large number of Yamaha four-stroke outboards. Mercury OEM 888690 references the same component used in select Mercury FourStroke applications.
| Manufacturer | Models |
|---|---|
| Yamaha | F115, LF115 |
| Yamaha | F150, LF150 |
| Yamaha | F175, LF175 |
| Yamaha | F200, LF200 |
| Yamaha | F225, LF225 |
| Yamaha | F250, LF250 |
| Yamaha | F300, LF300 |
| Mercury | 225 EFI FourStroke (0T653945 & Up) |
Yamaha and Mercury used multiple lower unit and water pump designs over the years. Always match your original OEM part number or consult your engine parts diagram before ordering replacement cooling system components.
This spacer replaces Yamaha 61A-45538-00-00 and Mercury 888690.
Product Specifications
- Brand: GLM Marine
- Part Number: 9075GM
- Part Type: Water Pump Spacer
- Replaces Yamaha: 61A-45538-00-00
- Replaces Mercury: 888690
- Location: Water Pump Assembly
- Application: Cooling System Service & Water Pump Rebuilds
Also Available in Pro Marine Brand
Pro Marine 9075P Water Pump Spacer
Prefer Pro Marine parts? We also stock the Pro Marine version of this water pump spacer. It replaces the same Yamaha and Mercury OEM numbers and fits the same applications.
Why Replace a Water Pump Spacer?
During water pump service, technicians often inspect the spacer plate for corrosion, wear, pitting, or deformation. Because the spacer helps maintain proper alignment between the impeller housing, wear plate, and other cooling system components, damage can contribute to reduced water pump efficiency.
Replacing worn cooling system components during maintenance can help avoid cooling issues and reduce the likelihood of premature water pump failure.
GLM Water Pump Spacer Features
- Direct replacement for Yamaha 61A-45538-00-00
- Direct replacement for Mercury 888690
- Designed for water pump rebuild and cooling system service
- Fits many Yamaha F115-F300 and LF-series outboards
- Compatible with Mercury 225 EFI FourStroke applications using OEM 888690
- Precision manufactured aftermarket replacement
- Popular choice for preventative maintenance repairs
Frequently Asked Questions
What does a water pump spacer do?
The spacer helps position and support components within the water pump assembly to maintain proper alignment and cooling system operation.
Which Yamaha engines commonly use this spacer?
Common applications include Yamaha F115, F150, F175, F200, F225, F250, and F300 outboards, including many LF-series models.
Does this fit Mercury outboards?
Yes. Mercury OEM 888690 is used on select Mercury 225 EFI FourStroke models and cross references directly to this spacer.
When should I replace a water pump spacer?
Replacement is recommended whenever corrosion, pitting, excessive wear, or physical damage is found during water pump inspection.
Is the Pro Marine version available?
Yes. The Pro Marine 9075P version is linked above if you prefer that brand.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or marine industry professional? We offer dealer pricing for qualified businesses.
Shipping Policy
- Free shipping on orders over $100 within the continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Most orders placed before 5:30 PM EST ship the same business day.
- Typical transit time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new and unused.
- Installed parts are not eligible for return.
- Return authorization required before returning merchandise.
Need help?
Contact Us
Phone: 941-721-3000
Searchable Terms
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45538
61A-45538-00-00
888690
9-43711
61A-45538-00-00
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17400-90J00
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63V-85540-00-00
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17-69511
18-5131
43077M
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695-85540-10-00
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96450M
9-57813
883072T1
883072T2
88825A1
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31800-95510
5030783
6G1-8194A-10-00
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