CAT 252-2422 Engine ECM — Electronic Control Module
The CAT 252-2422 is the OEM Engine Control Module (ECM) for Caterpillar C6.4 and C7 ACERT diesel engines. This unit manages fuel injection timing, emission controls, throttle response, and all critical engine parameters. A failed ECM causes hard starts, fault codes, power loss, or complete no-start conditions — this tested replacement restores full engine management.
Compatible Models
- CAT 320D Excavator (Engine: C6.4)
- CAT 320D L / 320D LRR Excavator
- CAT 323D Excavator (Engine: C6.4)
- CAT 324D Excavator (Engine: C6.4)
- CAT 325D Excavator (Engine: C7 ACERT)
- CAT 329D Excavator (Engine: C7 ACERT)
* Match software code (MKUUNK) and part number suffix (-03) to your original ECM. Flash reprogramming may be required for some applications.
Part Specifications
- OEM Part Number: 252-2422 / 252-2422-03
- Serial Number: 32676084LE
- Software Code: MKUUNK
- Part Type: Engine ECM / ECU — Electronic Control Module
- Brand: CAT / Caterpillar
- Connectors: 2 × large multi-pin + 1 × auxiliary connector
- Condition: Used — Bench tested & verified functional
- Compatible Engines: C6.4 / C7 ACERT
Why Choose BuyECM?
- ✅ CAT ECM specialists — we test every module before shipping
- ✅ Full functionality verified — no fault codes on bench test
- ✅ Anti-static packaging — ECM protected during transit
- ✅ Fast worldwide shipping — DHL / FedEx / EMS with tracking
- ✅ Expert pre-sales support — send us your serial number to confirm match
⚠️ Important: ECMs may require flash programming to match your machine's serial number. Contact us before ordering if you need programming support.
📦 Shipping: Dispatched within 1–2 business days. Tracking provided automatically.