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18-3302
83444M
83444M
8813421
89588
89588
90280-04M05-00
6E5-44352-00-00
6E5-44352-01-00
6E544352
8M0175381
8M6010327
8M6013127
804003
879126
88689
18-3063
47-81242M
47-95611M
662-44352-01-00
81242M
9-45608
95611M
Pro Marine 60° Thermostat for Yamaha F75 F90 VF90
The Pro Marine 6FP-12411P is a premium aftermarket 60°C thermostat designed for select Yamaha F75, F90 and VF90 FourStroke outboards. It directly replaces Yamaha OEM 6FP-12411-00-00 along with Mercury cross-reference numbers 8M0175325 and 8M6010300, helping maintain proper engine operating temperature and cooling system performance.
Why Replace Your Thermostat?
Your thermostat controls engine operating temperature by regulating coolant flow. A sticking thermostat can cause slow warm-up, overheating, inconsistent idle quality, poor fuel economy and unnecessary engine wear. Replacing a worn thermostat during routine cooling system maintenance helps keep your Yamaha FourStroke running at its designed operating temperature.
Compatible Applications
| Engine Family | Years |
|---|---|
| Yamaha F75LB Series | 2006-Present |
| Yamaha F75XB Series | 2006-Present |
| Yamaha F90JB Series | 2006-Present |
| Yamaha F90LB, LB2 and LB3 Series | 2006-Present |
| Yamaha F90XB and XB2 Series | 2006-Present |
| Yamaha VF90LA and VF90LB Series | 2006-Present |
| Yamaha VF90XA and VF90XB Series | 2006-Present |
Includes all applicable production variants and catalog suffixes including _0120, _0121, _0122, _0123, _0324 and other models using OEM thermostat 6FP-12411-00-00. Always verify your engine model and OEM part number before ordering.
OEM and Cross References
| Brand | Part Number |
|---|---|
| Pro Marine | 6FP-12411P |
| Yamaha OEM | 6FP-12411-00-00 |
| Mercury | 8M0175325 |
| Mercury | 8M6010300 |
What This Thermostat Does
The thermostat regulates coolant flow through your Yamaha outboard, allowing the engine to warm up quickly while maintaining the proper operating temperature. Maintaining correct engine temperature improves combustion efficiency, fuel economy and overall engine longevity.
Replacing a thermostat is commonly recommended whenever cooling system components are serviced or whenever overheating or poor warm-up symptoms are present.
Compare Aftermarket and OEM
Genuine Yamaha OEM Thermostat
Prefer the factory Yamaha thermostat? We also stock the genuine OEM version using the original Yamaha part number.
View Genuine OEMKey Features
Designed to maintain proper operating temperature for the listed Yamaha FourStroke engines.
Installs in place of Yamaha OEM 6FP-12411-00-00 without modification.
Manufactured to provide dependable cooling system performance.
Fits numerous Yamaha F75, F90 and VF90 models from 2006 through present production.
Frequently Asked Questions
Is this a genuine Yamaha thermostat?
No. This is a Pro Marine aftermarket thermostat designed as a direct replacement for Yamaha OEM 6FP-12411-00-00.
What OEM numbers does it replace?
It replaces Yamaha 6FP-12411-00-00 and Mercury cross references 8M0175325 and 8M6010300.
How do I verify fitment?
Verify your complete engine model and confirm your parts diagram calls for OEM thermostat 6FP-12411-00-00 before ordering.
Searchable Part Numbers
6FP-12411P, 6FP-12411-00-00, 8M0175325, 8M6010300, Pro Marine thermostat, Yamaha F75 thermostat, Yamaha F90 thermostat, Yamaha VF90 thermostat, Yamaha 60 degree thermostat, F75 cooling system thermostat, VF90 thermostat
6FP-12411-00-00
8M0175325
8M6010300
3B2873220
3B2873220M
3B2873221
3B2873221M
3B2873222
3B2873222M
Pro Marine Water Pump Spacer
Yamaha F115-F300 & Mercury 225 Water Pump Spacer
The Pro Marine 9075P Water Pump Spacer is a direct replacement for Yamaha OEM 61A-45538-00-00 and Mercury OEM 888690. This spacer plate is installed within the water pump assembly and helps maintain proper alignment and spacing of critical cooling system components.
Commonly replaced during water pump rebuilds and lower unit service, this spacer is used on numerous Yamaha four-stroke outboards and select Mercury four-stroke models that share Yamaha-designed powerhead and cooling system components.
Compatible Applications
Yamaha OEM number 61A-45538-00-00 is found across a wide range of Yamaha four-stroke outboards. Mercury OEM number 888690 references the same spacer used on certain Mercury-built Yamaha-platform engines.
| 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 used several water pump designs across different model years, gearcases, and driveshaft housings. Always verify your original OEM part number before ordering.
This spacer replaces Yamaha OEM 61A-45538-00-00 and Mercury OEM 888690.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Pro Marine | 9075P |
| Yamaha OEM | 61A-45538-00-00 |
| Mercury OEM | 888690 |
Alternative Brand Available
GLM 9075GM Water Pump Spacer
Looking for the GLM version? We also stock the GLM 9075GM Water Pump Spacer, which replaces the same Yamaha and Mercury OEM part numbers.
Product Specifications
- Brand: Pro Marine
- Part Number: 9075P
- Part Type: Water Pump Spacer Plate
- Replaces Yamaha: 61A-45538-00-00
- Replaces Mercury: 888690
- Application: Water Pump Assembly
What This Part Is Used For
The water pump spacer is an important component within the water pump assembly. It provides proper spacing and alignment between the wear plate, impeller, housing, and other cooling system components.
During water pump maintenance, technicians should inspect the spacer for wear, corrosion, pitting, or physical damage. Replacing worn components can help maintain proper water pressure and cooling system performance.
Key Features & Benefits
- Direct replacement for Yamaha 61A-45538-00-00
- Direct replacement for Mercury 888690
- Fits many Yamaha F115-F300 and LF115-LF300 outboards
- Fits Mercury 225 EFI FourStroke applications using OEM 888690
- Ideal during water pump rebuilds and cooling system service
- Pro Marine quality aftermarket replacement
- GLM alternative available above
FAQ
What OEM numbers does this replace?
This spacer replaces Yamaha OEM 61A-45538-00-00 and Mercury OEM 888690.
What Yamaha models use this spacer?
Common applications include Yamaha F115, F150, F175, F200, F225, F250,
and F300 models, including many LF-series variants.
What Mercury models use this spacer?
Mercury 225 EFI FourStroke models using OEM number 888690 commonly utilize this spacer.
Should I replace this during water pump service?
If corrosion, wear, or damage is found during inspection, replacement is recommended.
Do you carry another brand?
Yes. The GLM 9075GM version is linked above.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
9075P, 9075GM, 61A-45538-00-00, 888690, Yamaha F115 water pump spacer, Yamaha F150 water pump spacer, Yamaha F175 water pump spacer, Yamaha F200 water pump spacer, Yamaha F225 water pump spacer, Yamaha F250 water pump spacer, Yamaha F300 water pump spacer, LF225 water pump spacer, Mercury 225 EFI FourStroke water pump spacer, Pro Marine 9075P, GLM 9075GM, Yamaha cooling system parts, water pump rebuild parts
18-9075
18-9075
18-9075
45538
61A-45538-00-00
888690
9-43711
18-3063
662-44352-01-00
81242M
9-45608
95611M
6E5-44312-00-00
888688
Sierra Marine Water Pump Component
Yamaha 90-300HP & Mercury FourStroke Water Pump Washer
The Sierra 18-90201 Water Pump Washer is a direct replacement for Yamaha OEM 90201-22M01-00 and Mercury OEM 8556822. This washer is used within the lower unit water pump assembly and serves as a critical spacing component between water pump components and the driveshaft assembly.
Commonly replaced during impeller service, water pump rebuilds, and lower unit maintenance, this washer is used across a large range of Yamaha F-Series, VF-Series, VMAX, OX66, HPDI, Saltwater Series, and Mercury FourStroke outboards.
Compatible Applications
Yamaha OEM 90201-22M01-00 is used on a wide range of Yamaha outboards from 90HP through 300HP. Mercury OEM 8556822 cross references to the same washer used on Mercury FourStroke applications derived from Yamaha platforms.
| Engine Family | Common Applications |
|---|---|
| Yamaha F-Series | F90, F115, F150, F175, F200, F225, F250, F300 |
| Yamaha VF-Series SHO | VF90, VF115, VF150, VF175, VF200, VF225, VF250 |
| Yamaha VMAX | 150HP, 175HP, 200HP, 225HP, 250HP, 300HP |
| Yamaha OX66 | 150HP, 200HP, 225HP, 250HP |
| Yamaha HPDI | 150HP, 200HP, 225HP, 250HP, 300HP |
| Yamaha Saltwater Series | Various 115HP-250HP Applications |
| Mercury FourStroke | 225 EFI FourStroke, 250 EFI FourStroke |
Yamaha used multiple water pump assemblies across different model years and gearcase designs. Always verify your OEM part number before ordering.
This washer replaces Yamaha OEM 90201-22M01-00 and Mercury OEM 8556822.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Sierra | 18-90201 |
| Yamaha OEM | 90201-22M01-00 |
| Mercury OEM | 8556822 |
| Mercury OEM | 12-8556822 |
| GLM | 90201GM |
Alternative Brand Available
GLM 90201GM Water Pump Washer
We also stock the GLM 90201GM version of this water pump washer. It replaces the same Yamaha and Mercury OEM numbers and fits the same applications.
What This Part Is Used For
This washer is installed within the water pump assembly and functions as a spacing and load-distribution component. Proper washer thickness and placement are important for maintaining correct water pump assembly geometry and component alignment.
During water pump service, technicians commonly inspect and replace washers, spacers, wear plates, impellers, housings, and seals together to help restore cooling system performance.
Why Replace a Water Pump Washer?
- Prevents excessive wear on water pump components
- Maintains proper spacing within the water pump assembly
- Helps ensure correct impeller and housing alignment
- Recommended during major water pump rebuilds
- Inexpensive preventative maintenance item
Sierra 18-90201 Features
- Direct replacement for Yamaha 90201-22M01-00
- Direct replacement for Mercury 8556822
- Fits Yamaha F90-F300 applications
- Fits Yamaha VF-Series SHO models
- Fits Yamaha VMAX, OX66, HPDI, and Saltwater Series engines
- Compatible with Mercury 225 and 250 EFI FourStroke models
- Quality Sierra Marine aftermarket replacement
FAQ
What OEM numbers does Sierra 18-90201 replace?
Yamaha 90201-22M01-00 and Mercury 8556822.
What Yamaha engines use this washer?
Common applications include Yamaha F90-F300, VF-Series SHO, VMAX, HPDI, OX66, and Saltwater Series outboards.
Does this fit Mercury outboards?
Yes. Mercury OEM 8556822 is commonly used on Mercury 225 and 250 EFI FourStroke applications.
Should this washer be replaced during impeller service?
It should always be inspected and replaced if wear, scoring, corrosion, or damage is present.
Do you carry another brand?
Yes. We also stock the GLM 90201GM version linked above.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization required before return.
Searchable Terms
Sierra 18-90201, 18-90201, Yamaha 90201-22M01-00, Mercury 8556822, Mercury 12-8556822, water pump washer, driveshaft washer, Yamaha F250 water pump parts, Yamaha F300 water pump parts, Yamaha SHO water pump parts, Yamaha VMAX water pump washer, Yamaha OX66 water pump washer, Yamaha HPDI water pump washer, Mercury FourStroke water pump parts, GLM 90201GM
8556822
90201-22M01-00
161541
18-8923
3R0650210
3R0650210M
345650210
345650210M
47-161541
8M0214912
3B2650210M
3B2650211
3B2650211M
3B2660210
3B2660210M
5040525
8M0214945
803748K01
803748Q01
8037481
9-45401
161543
18-3098
369-65021-1
369650210
369650210M
369650211
369650211M
47-16154-3
47-161543
5040180
8M0204676