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YANMAR COOLING SYSTEM, THERMOSTATS

128990-49800 Thermostat For Yanmar 2YM15 And 3YM20 Diesel Engines

SKU: YM12899049800
OEM #: 128990-49800
$61.15 USD$67.94 USDSAVE 10%

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The 128990-49800 is a thermostat for Yanmar diesel engines — OEM part number 128990-49800. It fits Yanmar 2YM15, 3YM20, 3YM30, 3YM30AE 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.

Thermostat for Yanmar diesel engines, OEM reference 128990-49800, Activation temperature: 71°C (159.8°F. Compatible with Yanmar 2YM15, 3YM20, 3YM30, 3YM30AE engines.

Part Number YM12899049800
OEM Number 128990-49800
Part Type Thermostats
Specification Activation temperature: 71°C (159.8°F
OEM Brand Yanmar
Compatible Models 2YM15, 3YM20, 3YM30, 3YM30AE
4.8
Based on verified purchases
24 reviews
5
83%
4
12%
3
4%
2
0%
1
0%
Feb 12, 2026
Great service provided.
Order was received prior to expected date. Really appreciate the urgency given.
Ce
Cesar Verified Buyer
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.
Da
David Verified Buyer
Jan 5, 2026
Excellent, friendly service.
This is my new go to business for Yanmar parts. I highly recommend it.
Bi
Bill Verified Buyer
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Perkins® and all of the Perkins® engine models listed on this website are registered trademarks of Perkins, Inc. Deutz® and all of the Deutz® engine models listed on this website are registered trademarks of Deutz. Kubota® and all of the Kubota® engine models listed on this website are registered trademarks of Kubota. Yanmar® and all of the Yanmar® engine models listed on this website are registered trademarks of Yanmar. Delta Diesel Parts is not an authorized dealer for Perkins, Deutz, Kubota or Yanmar. None of the parts with a Sku beginning with "DDP" are genuine Perkins, Deutz, Kubota or Yanmar items.

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