Thermostat Repair Service Kit for Yamaha 4-Stroke 150 HP Outboards – Replaces 67F-12411-00, 6CB-12411-00 and 63P-12414-00
Thermostat Repair Service Kit for Yamaha 4-Stroke 150 HP Outboards – Replaces 67F-12411-00, 6CB-12411-00 and 63P-12414-00 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
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Thermostat Repair Service Kit for Yamaha 4-Stroke 150 HP Outboards ...
Thermostat Repair Service Kit for Yamaha 4-Stroke 150 HP Outboards – Replaces 67F-12411-00, 6CB-12411-00 and 63P-12414-00 is backordered and will ship as soon as it is back in stock.
Product Details
This Thermostat Repair Service Kit for Yamaha 4-Stroke 150 HP Outboard Motors is designed for Yamaha F150 and LF150 series engines listed for model years 2004 through 2018. It is intended for applications using thermostat housing part numbers 67F-12411 and 6CB-12411, helping restore reliable engine temperature regulation.
This aftermarket kit is cross-referenced with Yamaha 67F-12411-00-00, Yamaha 6CB-12411-00-00, Sierra 18-3632, Suzuki 17670-90J00, Mercury/Quicksilver 8M6010296 and Red Rhino YA-T14. Confirm the part number, engine model and year before ordering.
- Designed as a direct replacement service kit.
- Includes the thermostat, housing gasket and thermostat seal.
- Marine-use components are intended to withstand typical saltwater exposure.
Part Number Matrix
Use this matrix to compare equivalent manufacturer and aftermarket references. Part-number cross-references should be confirmed against the original component and engine application.
| Brand | Part Number |
|---|---|
| Yamaha | 67F-12411-00-00 |
| Yamaha | 67F-12411-01-00 |
| Yamaha | 6CB-12411-00-00 |
| Yamaha | 63P-12414-00-00 |
| Sierra | 18-3632 |
| Suzuki | 17670-90J00 |
| Mercury/Quicksilver | 8M6010296 |
| Red Rhino | YA-T14 |
Engine & Model Compatibility
The following Yamaha applications are listed for this thermostat service kit. Verify the complete model designation, production year and existing thermostat part number before installation.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | F150 | 150 | 4-Stroke | 2004–2011 | 67F-12411-00/01 |
| Yamaha | LF150 | 150 | 4-Stroke | 2004–2011 | 67F-12411-00/01 |
| Yamaha | F150A | 150 | 4-Stroke | 2012–2014 | 67F-12411-00/01 |
| Yamaha | LF150A | 150 | 4-Stroke | 2012–2014 | 67F-12411-00/01 |
| Yamaha | F150B | 150 | 4-Stroke | 2015–2018 | 67F-12411-00/01 |
| Yamaha | LF150B | 150 | 4-Stroke | 2015–2018 | 67F-12411-00/01 |
The kit is also cross-referenced by part number with Suzuki 17670-90J00. Specific Suzuki engine model and year compatibility has not been confirmed here.
| Brand | Stroke | OEM Part No. | Notes |
|---|---|---|---|
| Suzuki | 4-Stroke | 17670-90J00 | Cross-referenced by part number only; specific models and years are unconfirmed. |
Technical Specs
- Product Type
- Thermostat repair service kit
- Installation
- Direct replacement
- Temperature Rating
- 60°C (140°F)
- Housing Material
- Metallic
- Housing Color
- Silver/metallic
- Package Dimensions
- 5.91 × 3.94 × 2.17 inches (150 × 100 × 55 mm)
- Weight
- 0.09 kg (3.19 oz)
- Other Attributes
- Marine-use components designed for saltwater exposure
What’s in the Box
- 1 × Thermostat, cross-referenced with 67F-12411
- 1 × Thermostat housing gasket, cross-referenced with 63P-12414
- 1 × Thermostat seal, cross-referenced with 67F-12412
Installation Notes
- Ensure the engine is completely cool and disconnect the battery.
- Place a suitable container beneath the engine to catch coolant, then locate and open the drain plug as specified in the engine service information.
- Locate the thermostat housing and remove the bolts securing its cover.
- Carefully remove the old thermostat, gasket and seal. Note the thermostat orientation before removal.
- Clean the housing and cover mating surfaces, removing old gasket material and corrosion without damaging the sealing surfaces.
- Install the new thermostat in the correct orientation, followed by the new seal and gasket.
- Reinstall the housing cover and tighten the bolts to the engine manufacturer’s specified torque.
- Close the drain plug, refill the cooling system with the recommended coolant, reconnect the battery, run the engine and inspect carefully for leaks.
Troubleshooting & FAQ
How do I know if my thermostat is failing?
Common signs include engine overheating, the engine running too cold and failing to reach its correct operating temperature, or erratic temperature-gauge readings. Confirm the diagnosis using the appropriate service procedure for your engine.
What is the operating temperature of this thermostat?
This thermostat is rated to begin opening at 60°C (140°F), allowing coolant to circulate as the engine reaches operating temperature.
Is this a complete kit for the job?
Yes. The kit includes one thermostat, one housing gasket and one thermostat seal for a standard thermostat replacement service.
Can I reuse my old thermostat gasket or seal?
Use the new gasket and seal supplied with the kit. Reusing old sealing components can result in improper sealing and coolant leaks.
Is this OEM or aftermarket?
This is an aftermarket replacement kit, not an OEM component. It is intended to provide an equivalent service replacement for the listed applications.
Shipping Speed & Cost
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout where available for your region.
Warranty & Returns
This product is covered by a 1-year warranty against manufacturing defects under normal marine use. Returns are accepted within the standard return window for unused items in their original condition. Contact support with your order details for assistance.
Safety & Important Info
- Verify the engine model, year, original part number, images and specifications before ordering. Do not purchase if the original component differs.
- This is an aftermarket replacement part, not an original equipment manufacturer (OEM) component.
- Follow the engine manufacturer’s service procedures and torque specifications. Professional installation is recommended to help prevent leaks or engine damage.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world saltwater conditions.
- Fast Global Fulfillment — We offer free standard delivery to most regions, with parts typically arriving in 5–15 days.
- Manufacturer-Direct Value — Our model delivers fair pricing while maintaining a focus on materials and quality control.
Payment & Security
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