LIUCHUANG PARTS | Frequently Asked Questions (FAQ)

1. Product & Compatibility​
How do I ensure the part fits my machine?

Compatibility is our priority. Please provide your Engine Serial Number (ESN), Machine Model, or the Original Part Number. Our technical team will verify the fitment before shipping to ensure 100% compatibility.

Are your parts original or aftermarket?

We offer both. We supply Genuine OEM parts for maximum reliability, as well as High-Quality Aftermarket options that meet or exceed original factory specifications. Each product page clearly states the condition and type.

Do you provide ECM/ECU programming services?

Yes. We provide professional programming for Caterpillar, Cummins, and Volvo ECMs. Simply provide your engine prefix or software version, and we will pre-program the unit so it is used directly when it arrives.

2. Shipping & Delivery
Which countries do you ship to?

We ship worldwide. We have long-term partnerships with DHL, FedEx, and UPS to ensure your parts reach you safely, whether you are in North America, Europe, Australia, or Africa

How long does shipping take?
  • Order Processing: 1-2 business days (if programming is required, add 1 day).
  • Express Shipping: 3-7 business days via DHL/FedEx/UPS.
  • Sea/Air Freight: Available for heavy orders over 100kg (20-40 days).
Will I have to pay import duties and taxes?

Prices on our website do not include local import duties or VAT. Customers are responsible for these charges based on their country's regulations. However, we can assist with commercial invoice documentation to facilitate customs clearance.

3. Payments & Security
What payment methods do you accept?

We accept PayPal, Credit Cards (Visa, MasterCard), and Wire Transfers (T/T). For large wholesale orders, we recommend Wire Transfers for lower transaction fees.

Is my payment secure?

Absolutely. Our website uses SSL encryption to protect your data. All credit card and PayPal transactions are processed through secure, industry-leading gateways.

 

4. Returns & Warranty
Do your parts come with a warranty?

Yes. Most of our electronic components (ECMs, Monitors, Harnesses) come with a 6 to 12-month warranty against manufacturing defects. Please refer to the specific product page for warranty details

What is your return policy?

If the part is defective or incorrect due to our error, we offer a replacement or full refund within 30 days of receipt. Please note that programmed ECMs are customized items; returns are only accepted if the hardware is faulty.

 

5. Technical Support
My machine shows an error code. Can you help?

While we are a parts supplier, our team has extensive experience in heavy equipment electronics. Contact us via WhatsApp with your error code, and we will do our best to provide technical guidance or diagnostic advice.