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Aftermarket parts may appear slightly different, including the packaging.
121857-55730 Sensor For Yanmar 4JH45 And 4JH80 Diesel Engines
$57.31 USD$63.68 USDSAVE 10%
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This sensor is built for Yanmar diesel engines — OEM part number 121857-55730. It fits Yanmar 4JH45, 4JH80 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 | YM12185755730 |
| OEM Number | 121857-55730 |
| Part Type | Sensors and Switches |
| Specification | Genuine Sensor for Yanmar 4JH45 and 4JH80 engines |
| OEM Brand | Yanmar |
| Compatible Models | 4JH45, 4JH80 |
Sale price
$57.31 USD
Regular price
$63.68
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.
