Need an OEM ECU for Your Excavator? Meet the 172-9391 Controller

The 172‑9391 Engine Controller ECU (part number 172‑9391) from Guangzhou Tianhe District Zhuji Yuecai Machinery Business Department is an OEM‑spec replacement for Yuecai excavator models 120H, 140H, and 988G. With a unit price of US$480–500, a 1‑year…

Company Profile

Guangzhou Tianhe District Zhuji Yuecai Machinery Business Department operates out of Guangdong, China. The company supplies heavy‑equipment electronic spares, with a focused catalog that includes ECUs and ECMs, injectors, and wiring harnesses. Their direct‑OEM approach gives aftermarket buyers access to engine controllers built to brand specifications without the lead times of dealership channels.

Product Description

The 172‑9391 ECU listed under this SKU is the engine controller for three Yuecai‑branded machine families: the 120H excavator, the 140H model, and the 988G loader. Buyers receive a single‑unit package; the unit ships in protective packaging (single‑item selling unit) and carries a 12‑month supplier warranty.

Key configuration parameters:

Feature‑to‑advantage quick view:

• OEM‑branded unit – Designed to match the original engine controller form, fit, and function, reducing installation surprises.
• One‑piece minimum order – Try a single sample for bench‑testing or emergency replacement before committing to volume.
• 1‑year warranty – Covers manufacturing defects, giving your workshop confidence in long‑term reliability.
• Clear cross‑reference – The part number 172‑9391 maps directly to the listed machine models, so you know what you’re ordering.

Applications

This ECU controls the electronic fuel injection and timing for the engine on the Yuecai 120H excavator, 140H excavator, and 988G wheel loader. It’s used as a direct replacement when the original controller fails or when stocking parts for a mixed fleet of these models. Because it’s sold as an excavator spare part, the unit is ready to install without re‑flashing, provided the machine’s specifications match.

Service Highlights

The supplier supports simple, risk‑reduced purchasing:

• Single‑unit packaging means you can order exactly what you need – no bundled extras.
• MOQ of 1 PC allows cost‑effective trial for compatibility checks.
• 1‑year warranty period provides a clear service window.
• While video outgoing‑inspection and machinery test reports are not routinely provided, the company welcomes technical inquiries and can supply additional photos or details on request.

Contact the Supplier

To receive a quotation or confirm fitment for your machine, reach out to Guangzhou Tianhe District Zhuji Yuecai Machinery Business Department. Specify your equipment model and serial number so the team can double‑check compatibility. With a one‑piece minimum, you can start testing the 172‑9391 ECU immediately.

Typical Sourcing Timeline

Every buyer’s process is different, but a typical path looks like this:

1. RFQ – You send your machine details and order requirements.
2. Supplier confirmation – The team verifies part‑model alignment and provides a quotation.
3. Sample order – Place a single‑unit order to inspect and fit‑test the ECU.
4. Serial‑number check (optional) – If needed, the supplier can cross‑check your engine serial number against the ECU’s programming.
5. Bulk order – After successful testing, finalize larger quantity terms.

Exact lead times depend on stock and destination; confirm during inquiry.

Disclaimer

All technical data above has been supplied by Guangzhou Tianhe District Zhuji Yuecai Machinery Business Department. Final engineering approval for use in any specific machine must be obtained directly from the supplier. Buyers should confirm ECU‑model compatibility with their machine’s serial number before installation.

Related product: Excavator Engine Controller ECU - OEM YUE CAI 120H 140H 988G