FORD FOCUS MK II ECU / 4M51-12A650-JH / 5WS40303H-T / 3ANH / J38AC / SIEMENS

Technical Specifications

Reference Numbers

• 4M51-12A650-JH
• 4M5112A650JH
• 5WS40303H-T
• 5WS40303HT
• 3ANH
• J38AC

Vehicle Compatibility

Reference-backed vehicle model: Ford Focus Mk II donor; Siemens SID202 engine ECU, engine/kW not asserted Engine/power or the full vehicle variant is not independently confirmed. Compare the physical OEM/HW/SW label, connectors, coding and VIN; model alone does not guarantee interchangeability.

Condition

Used original part. Signs of previous use may be present. Photos show the actual item supplied.

Important Compatibility Check

Please compare the Bosch/OEM reference numbers, connections, casing and product photos with your original unit. A matching vehicle model, engine or year alone does not guarantee compatibility.

Before Ordering

If you are unsure whether this part fits your vehicle, send us the reference numbers on your original unit.

Programming / Immobilizer

A used original ECU may require programming, cloning, immobilizer synchronization or data transfer before installation.

IMMO OFF / ECU Decoding

Decoding or IMMO OFF service may be available for selected ECUs. Please ask us to confirm availability.

Worldwide Shipping

We ship automotive parts internationally. Orders are normally dispatched within 24–48 business hours after confirmation unless otherwise stated.

Economy & Express Shipping

Economy shipping is the standard option. Express shipping may be available for selected destinations; ask before ordering.