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YANMAR
COOLING SYSTEM, THERMOSTATS
121850-49811 Thermostat For Yanmar 4LHA-STE Diesel Engines
$20.82 USD$23.13 USDSAVE 10%
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This thermostat (DDP-121850-49811) is built for Yanmar diesel engines — OEM part number 121850-49811. It fits Yanmar 4LHA-STE, 4LHA-STZP, 4LHA, 4LHA-STP, 4TNE98, 4TNV98, S4D98E, 4TNE88 engines.
Delta Diesel Parts is a U.S.-based supplier of Yanmar diesel engine parts, with most in-stock orders shipping the same day and knowledgeable support staff to help you when it's needed.
| Part Number | DDP12185049811 |
| OEM Number | 121850-49811 |
| Part Type | Thermostats |
| Specification | Activation temperature: 71°C (159.8°F |
| OEM Brand | Yanmar |
| Compatible Models | 4LHA-STE, 4LHA-STZP, 4LHA, 4LHA-STP, 4TNE98, 4TNV98, S4D98E, 4TNE88 |
Sale price
$20.82 USD
Regular price
$23.13
Unit price
Unavailable
Feb 12, 2026
Great service provided.
Order was received prior to expected date. Really appreciate the urgency given.
Jan 28, 2026
Exceeded Expectations!
Even though my parts were not in stock, they were ordered and delivered ahead of expected time. Will order from them again.
Jan 5, 2026
Excellent, friendly service.
This is my new go to business for Yanmar parts. I highly recommend it.
