Thermostat Repair Service Kit – Fits Yamaha 4-Stroke 150 HP (Replaces 67F-12411-00, 6CB-12411-00, 63P-12414-00)
Thermostat Repair Service Kit – Fits Yamaha 4-Stroke 150 HP (Replaces 67F-12411-00, 6CB-12411-00, 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.
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Thermostat Repair Service Kit – Fits Yamaha 4-Stroke 150 HP (Replac...
Thermostat Repair Service Kit – Fits Yamaha 4-Stroke 150 HP (Replaces 67F-12411-00, 6CB-12411-00, 63P-12414-00) is backordered and will ship as soon as it is back in stock.
Product Details
This Thermostat Repair Service Kit – Fits Yamaha 4-Stroke 150 HP Outboard Motors is engineered for Yamaha F150 and LF150 series engines manufactured between 2004 and 2018. It is specifically designed for models using thermostat housing part numbers 67F-12411 and 6CB-12411, ensuring a precise fit and reliable temperature regulation.
This kit serves as a direct interchange for Yamaha 67F-12411-00-00, 6CB-12411-00-00, Sierra 18-3632, Suzuki 17670-90J00, Mercury/Quicksilver 8M6010296, and Red Rhino YA-T14.
- Engineered for direct replacement installation.
- Includes the thermostat, gasket, and seal for a complete service.
- Features marine-grade components designed to withstand saltwater exposure.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Yamaha | 67F-12411-00-00 |
| Yamaha | 67F-12411-01-00 |
| Yamaha | 6CB-12411-00-00 |
| Sierra | 18-3632 |
| Suzuki | 17670-90J00 |
| Mercury/Quicksilver | 8M6010296 |
| Red Rhino | YA-T14 |
Engine & Model Compatibility
Confirm your engine model and year in the table below.
This kit is confirmed to fit the following Yamaha F150 series engines.
| 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 |
It is cross-referenced by part number for Suzuki engines using part 17670-90J00. Compatibility for specific Suzuki models is unconfirmed.
| Brand | Stroke | OEM Part No. | Notes |
|---|---|---|---|
| Suzuki | 4-Stroke | 17670-90J00 | Cross-referenced by part number only |
Technical Specs
- Product Type
- Thermostat Repair 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-grade components designed for saltwater exposure
What’s in the Box
- 1 × Thermostat (67F-12411)
- 1 × Thermostat Housing Gasket (63P-12414)
- 1 × Thermostat Seal (67F-12412)
Installation Notes
- Ensure the engine is completely cool and disconnect the battery.
- Place a container beneath the engine to catch coolant, then locate and open the drain plug.
- Once drained, find the thermostat housing. Loosen and remove the bolts securing its cover.
- Carefully remove the old thermostat, gasket, and seal. Note the orientation of the thermostat.
- Thoroughly clean both the housing and cover surfaces, removing any old gasket material or corrosion.
- Install the new thermostat in the correct orientation, followed by the new seal and gasket.
- Re-secure the housing cover, tightening bolts to the manufacturer’s specified torque.
- Close the drain plug, refill the cooling system with the recommended coolant, and reconnect the battery. Run the engine and inspect carefully for any leaks.
Troubleshooting & FAQ
How do I know if my thermostat is failing?
Common signs of a faulty thermostat include engine overheating, the engine running too cold and not reaching its correct operating temperature, or erratic readings on the temperature gauge.
What is the operating temperature of this thermostat?
This thermostat is rated to begin opening at 60°C (140°F), allowing coolant to circulate and maintain optimal engine temperature.
Is this a complete kit for the job?
Yes, this kit includes the thermostat, the housing gasket, and the thermostat seal, which are the essential components needed for a standard replacement.
Can I reuse my old thermostat gasket or seal?
It is strongly recommended to always use the new gasket and seal provided in the kit. Reusing old components can lead to improper sealing and coolant leaks.
sOEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. The kit is manufactured in an ISO 9002 facility and batch-inspected for consistency and quality.
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. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part before ordering. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement part, not an original equipment manufacturer (OEM) component.
- Professional installation is highly recommended for safety, performance, and to prevent engine damage.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously 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 without compromising on high-quality materials or stringent quality control.
Payment & Security
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