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SKU:
ZZ3F03271
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76.5℃ Thermostat 129470-49801 for Yanmar Marine Engine 4JH2 4JH3 4JH4-E 4JH5-E
$47.99
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$47.99
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$47.99
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Compatible Models
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Compatible equipment / model
76.5℃ Thermostat for Yanmar Marine Engine
This 76.5℃ thermostat, cross-referenced as 129470-49801, is a direct replacement for Yanmar marine engines, regulating coolant temperature to maintain optimal operating efficiency.
Overview
This 76.5℃ thermostat for Yanmar marine engines ensures the engine reaches and maintains its ideal temperature range, promoting efficient combustion and reducing wear. Designed for select Yanmar 4JH series models, this thermostat is a critical component for reliable marine operation. It serves as a direct replacement for the OEM number 129470-49801, ensuring a precise fit and function.
Built For Performance
- Precise 76.5℃ opening temperature for consistent engine thermal management
- Constructed with corrosion-resistant materials suited for marine environments
- Direct replacement for OEM part number 129470-49801
- Engineered to meet or exceed original equipment specifications
Fits These Machines
- for Yanmar 4JH2
- for Yanmar 4JH3
- for Yanmar 4JH4-E
- for Yanmar 4JH5-E
On-The-Job Use
- Maintains proper engine temperature during long cruising periods
- Helps prevent overheating in tropical or warm-water conditions
- Supports consistent performance during heavy load operation
Specs At A Glance
| Opening Temperature | 76.5℃ |
| Part Number(s) | 129470-49801 |
Good To Know
Q: How often should this thermostat be replaced? A: Thermostats are wear items and should be inspected annually and replaced if they fail to open or close correctly, typically every 2-3 years for marine use.
Q: Will this thermostat work in freshwater and saltwater engines? A: Yes, it is designed for marine applications and is compatible with both freshwater and saltwater cooling systems, provided the cooling system is properly maintained.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.