YN20M00107S021 Air Conditioning Expansion Valve is an aftermarket replacement air conditioning expansion valve for Kobelco machines, including SK135SR-2, SK350-8 and other listed models. The expansion valve meters refrigerant into the evaporator of the cab air conditioning system. It is supplied by LIONKITS as aftermarket new with a 3-month warranty.
YN20M00107S021 Air Conditioning Expansion Valve Specifications
- Product Type: Air Conditioning Expansion Valve
- Part Number: YN20M00107S021
- Compatible Brand: Kobelco
- Condition: Aftermarket new
- Warranty: 3 Months
- Brand: LIONKITS
- Country of Origin: China
Kobelco Models Compatible with the YN20M00107S021 Air Conditioning Expansion Valve
- Kobelco SK200-8 SK210-8 SK170-8 sk235sr-2 sk215srlc sk350-8
Your model is not listed? Contact LIONKITS via live chat or email with your machine model and nameplate photo, and we will confirm compatibility.
What Does an Air Conditioning Expansion Valve Do?
The expansion valve meters refrigerant into the evaporator of the cab air conditioning system. It drops the pressure of the liquid refrigerant so it can absorb heat and cool the cab air. A stuck or clogged valve leads to weak cooling or an icing evaporator.
Signs the Valve Needs Replacing
- Weak cooling: too little refrigerant reaches the evaporator.
- Frost on the valve or evaporator: a stuck valve lets pressure and temperature drop too far.
- Unstable air conditioning pressures: gauge readings that swing or stay abnormal.
These symptoms overlap with worn pumps, dirty oil and clogged filters, so check the basics and measure pressure before replacing the valve.
How to Order and Install the YN20M00107S021 Air Conditioning Expansion Valve
- Confirm your machine model, engine model and the part number on your existing valve before ordering.
- Send a photo of the nameplate or the old valve if you are not sure; LIONKITS will confirm fitment for you.
- Recover the refrigerant with the right equipment before opening the system.
- Replace the O-rings, evacuate the system and recharge to the specified refrigerant quantity.
- Check cooling performance and the system pressures after installation.
Shipping, Payment and Support
- Delivery time: 3-7 days.
Prepare time: 2-3 days - Shipping methods: DHL, FedEx, UPS, TNT, USPS EMS
- Payment methods: PayPal, Stripe, Credit card, Visa
- Order tracking: A tracking number with a tracking link is sent by email once the order ships.
Frequently Asked Questions
What is the YN20M00107S021 Air Conditioning Expansion Valve?
The YN20M00107S021 Air Conditioning Expansion Valve is an aftermarket replacement air conditioning expansion valve for Kobelco machines, supplied as aftermarket new under part number YN20M00107S021.
Which Kobelco models does the YN20M00107S021 Air Conditioning Expansion Valve fit?
It is listed for SK135SR-2, SK350-8. If you are unsure, send your machine nameplate to LIONKITS for confirmation.
How do I know an expansion valve has failed?
Typical signs are weak cooling, frost on the valve or evaporator and abnormal air conditioning pressures.
What are the warranty and delivery terms for the YN20M00107S021 Air Conditioning Expansion Valve?
Warranty: 3 Months. Typically, delivery takes 3-7 days.
Prepare time: 2-3 days. Shipping by DHL, FedEx, UPS, TNT, USPS EMS.











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