Recmar Yanmar 6LY2 6LY3 Thermostat 71°C 127605-48590
REC127605-48590
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Regular price£64.32
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Yanmar 6LY2 / 6LY3 Thermostat
71°C | Replaces 127605-48590
Aftermarket 71°C thermostat for selected Yanmar 6LY2 and 6LY3 high-output marine diesel engines using reference 127605-48590.
FITMENT CHECK: Earlier 6LY/6LYM engines often use the 76.5°C thermostat 119593-49550. Do not interchange these two families.
Key Features
- 71°C opening temperature
- For 6LY2 and 6LY3 families
- High-output marine diesel application
- Replaces 127605-48590
- Recmar aftermarket thermostat
Technical Specs
| Part type | Coolant thermostat |
| Temperature | 71°C |
| Approx. diameter | 77.8mm reference dimension |
| Engine family | 6LY2 / 6LY3 |
| SKU | REC127605-48590 |
Compatibility / Fitment Guide
| Engine family | Verified models | Notes |
|---|---|---|
| 6LY2 family | Selected 6LY2, 6LY2A and 6LY2M variants | Confirm complete suffix. |
| 6LY3 family | 6LY3 variants including UTC/ETP/UTP/STP applications where specified | Use serial-specific parts book. |
| Exclusion | Earlier 6LY/6LYM engines using 119593-49550 | Different temperature and reference. |
Confirm the complete model suffix, serial number, temperature specification and OEM reference.
Part Number Cross Reference
| Yanmar | 127605-48590 |
| Associated gasket on 6LY3 | 119578-49110 application |
| 4Boats SKU | REC127605-48590 |
Recmar aftermarket replacement; Yanmar references identify fitment only.
Frequently Asked Questions
What is the opening temperature?
71°C.
Does it replace 119593-49550?
No. That is a different 76.5°C application.
Does it fit 6LY3-UTC?
Yes when 127605-48590 is listed for the engine.
Installation note: Fit the specified new gasket/seal, bleed the cooling circuit where required and check operating temperature.
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