Q1: Which excavator models is this main control valve/multi-way valve assembly suitable for?

A: Primarily suitable for the control and distribution of hydraulic systems in (CAT) E345D, 345D L, E349D, 349D L, and other heavy-duty excavators.

Q2: What quality options are available for this multi-way valve assembly?

A: We offer brand new original parts, high-precision aftermarket OEM replacement parts, and remanufactured parts, balancing quality and cost-effectiveness.

Q3: What is the product warranty period?

A: A 6-12 month warranty is provided. During the warranty period, if quality problems such as valve core jamming, internal scoring, or oil leakage occur due to non-human factors, we will repair or replace the product free of charge.

Q4: What malfunction symptoms indicate a possible abnormality in the main control valve?

A: Common malfunctions include: malfunction or jamming of individual actions (such as failure to reconnect, arm drop), delayed or slow overall machine operation, system pressure drop, and excessively high oil temperature due to external or internal oil leakage from the main control valve.

Q5: What are the key precautions when installing a new main control valve assembly?

A: Before installation, the hydraulic oil tank and pipelines must be thoroughly cleaned, and brand new hydraulic oil and filters must be used. All pipeline joints must be strictly matched to their respective numbers to prevent foreign objects from entering the valve body and causing the new valve core to jam.

Q6: How are products packaged? What is the delivery time?

A: All products are uniformly packaged in thickened, moisture-proof wooden crates to prevent damage during transportation. In-stock orders are usually shipped within 1-3 business days, and we support sea freight, air freight, and international express delivery.