How do I request a quotation for air conditioning parts, and how fast will I get a reply?

Send the part number from the component or a clear photo of it, the machine model and serial number, the fault you are seeing (no cooling, weak airflow, water in the cab), the quantity of each line, and the destination port through the contact page of Guangzhou Shenyue Machinery Technology Co., Ltd. Quotations normally come back within 24 hours with each component on its own line in genuine, OEM-quality and aftermarket grades.

Should I replace the receiver drier when I replace the compressor?

Yes, essentially always. The receiver drier holds the desiccant that removes moisture from the system, and a failed compressor usually sends debris into it. Fitting a new compressor onto a saturated or contaminated drier is one of the classic repeat failures in cabin air conditioning.

Why does my excavator air conditioning cool poorly at idle but better at high idle?

That usually points at the compressor or the fan and airflow rather than the refrigerant charge alone — a compressor losing displacement, a condenser that is packed with dust, or a tired blower all behave that way. Clean the condenser core first, then have pressures checked before replacing parts.

Excavator Air Conditioning Parts: Compressor, Condenser, Evaporator and Receiver Drier

Category Guide · September 28, 2026 · Guangzhou, China

Excavator Air Conditioning Parts: Compressor, Condenser, Evaporator, Blower and Receiver Drier

In a temperate market an air conditioning fault is an annoyance. In a tropical, desert or Australian summer it is a productivity problem: operators leave cabs, shifts get shorter, and a machine that costs money by the hour starts costing more because nobody wants to sit in it. Yet cabin air conditioning is the most commonly deferred maintenance on the whole machine — partly because it is seen as a comfort system rather than a machine system, and partly because its failures are diagnosed by guesswork. The truth is that the system is simple, and its failure patterns are readable. Guangzhou Shenyue Machinery Technology Co., Ltd. quotes compressors, condensers, evaporators, blowers, fan-speed switches, receiver driers and cabin filters from Guangzhou daily across Kobelco, Komatsu, Hitachi, Doosan, Hyundai and other makes, and this guide is how we help buyers order the right component first time.

Corbay is the international export brand of Guangzhou Shenyue Machinery Technology Co., Ltd., Guangzhou, China. Air conditioning references are machine- and generation-specific, and the same model year can carry different components across markets — which is why every cabin part we quote is anchored to the reference on the component itself.

The Cabin Circuit — What Each Component Does

Compressor.Driven from the engine, it pressurises the refrigerant and is the most expensive component in the circuit — and the one most often replaced unnecessarily. Before condemning it, check that it engages, that the clutch is sound and that system pressures were actually measured.

Condenser.The front-of-machine heat exchanger, usually sitting ahead of the engine cooler where it collects every airborne leaf. A condenser commonly quoted as the YN20M00107S020C reference for SK-10 class machines works only if air can pass through it, and packed fins are the most common single cause of weak cooling.

Evaporator and expansion valve.The evaporator sits inside the cabin air box and absorbs heat from the air; an evaporator commonly quoted as the LQ20M01327F1 reference for SK-10 machines is usually a long-lived part that fails as a leak or after years of dust accumulation, which is why we ask about airflow as well as temperature.

Receiver drier.The system's moisture trap, commonly quoted as the YN54S00041P1C reference. It is a service part, not a permanent one, and it should be replaced whenever the circuit is opened or the compressor is changed.

Blower, fan-speed switch and filters.Airflow, not temperature. A fan-speed switch commonly quoted as the LS50S00010P1 reference, a tired blower motor and clogged cabin filters such as the YN17M01297F2 reference all present as "the air conditioning is weak" — the cheapest faults in the system and the most often misdiagnosed.

Reading the Fault Before Replacing the Part

The symptom usually narrows the component, and asking the right question saves the most money in this category. No cooling at all, compressor not engaging: suspect the clutch, the pressure switch or the refrigerant charge before the compressor itself. Cools at high idle, weak at idle: compressor displacement, condenser airflow or blower condition. Cold for ten minutes, then warm: a freezing evaporator, often from a blocked cabin filter or a moisture problem — hence the receiver drier. Water inside the cab or a damp smell: a blocked evaporator drain, before anything in the refrigerant circuit at all. Noise on engagement: clutch, belt or mounting. Diagnosis by symptom costs nothing; diagnosis by substitution costs a compressor every time. Component references are best cross-checked against the machine maker's parts documentation, such as the official Kobelco documentation, and the same fault-first discipline that applies to the machine's electrical system, covered in our electrical and maintenance range, applies here.

Seasonal Stocking — Why Cabin Parts Are a Planning Decision

Order before the season, not during it.Cabin parts move in volume in the weeks when temperatures climb, and that is exactly when lead times stretch. Buyers who stock in the shoulder months get faster delivery and steadier pricing.

Stock the service parts, not only the failures.Receiver driers, cabin filters, fan-speed switches and belts are low-cost, light and stackable — the ideal lines to hold on the shelf alongside the filters you already stock.

Batch cabin parts with the routine order.Air conditioning lines consolidate easily with filters, seals and hoses in the same shipment, so freight per line falls rather than rises. Our fleet stocking plan covers how to time that order.

Give operators one clean rule.If airflow is weak, clean the condenser and change the cabin filter first. It fixes a large share of complaints at almost no cost — and it tells you honestly whether anything else needs attention.

What We Need to Quote Your Cabin Parts

Send five details: the part number from the component, or a clear photo of it; the machine model and serial number; the fault pattern you are seeing; the quantity of each line; and the destination port. Quotations normally come back within 24 hours, with compressor, condenser, evaporator, blower, receiver drier, switch and cabin filter each priced on its own line in genuine, OEM-quality and aftermarket grades — the grade and maker stated in writing, and any reference that is commonly quoted rather than fully verified flagged as such before it ships. If you are stocking for a fleet, tell us how many machines of each model you run and we will quote a cabin parts kit per model, which is quicker to order and easier to hold in stores. The wider parts range is on the product catalogue.

Air Conditioning Parts — FAQ

Do you supply cabin parts for machines other than Kobelco?Yes — compressors, condensers, evaporators, blowers, driers and cabin filters are quoted across Komatsu, Hitachi, Doosan, Hyundai and other makes, identified from the component reference and the machine data plate.

Can I buy the compressor on its own?Yes, and it will be quoted as its own line — but we will also quote the receiver drier, the expansion valve and the seals, because a compressor replaced without them is the most common repeat repair in the category.

How do I request a quotation and how fast will I get a reply?Send the component number or photo, machine model and serial, the fault, quantities and destination port via the contact page — Guangzhou Shenyue Machinery Technology Co., Ltd. normally replies within 24 hours with every grade on the line.

Fix the Cabin Before the Season Fixes Your Schedule

Air conditioning is the one repair whose cost is measured in operator hours as much as in parts. Send the machine model, the component references and the fault you are seeing, and the team at Guangzhou Shenyue Machinery Technology Co., Ltd. will confirm what fits, quote every grade honestly, and get the parts to the port before the temperature does.

Browse Cabin & Electrical Parts Request a Cabin Parts Quote

Corbay Excavator Parts is the international export brand of Shenyue Machinery (Guangzhou Shenyue Machinery Technology Co., Ltd.), Guangzhou, China. Shenyue is an independent parts specialist and is not affiliated with, or an authorized dealer of, Kobelco Limited. Parts are supplied as genuine, OEM or clearly identified aftermarket items, and the grade is stated on every quotation.