Original used engine control unit.

Vehicle make: Smart

Reference numbers: 04010021, MR594091

Manufacturer part number: 04010021

OE/OEM: 04010021, MR594091

Before purchasing, verify part numbers and compare photos.

For a compatibility check, you may provide the vehicle VIN.

Photos show the part offered for sale.

Tracked shipping; shipping costs and times are shown in the listing.

Original Shopify technical details

SMART STEERING ECU / 04010021 / MR594091 / HITACHI

Original used engine control unit (ECU) from Primo Car Parts. Photos show the actual used item offered for sale.

Technical Specifications

Specification
Value

Reference numbers

04010021 / 04 010 021 / MR594091

SKU
C16-15

Reference Numbers

• 04010021

• 04 010 021

• MR594091

Important Compatibility Check

Before ordering, compare the manufacturer and OEM reference numbers, connectors and casing to your original part. Vehicle make, model or engine alone is not enough to confirm interchangeability.

Condition

Used original part. Normal cosmetic wear may be present. Inspect the actual item photos before purchase.

Programming / Immobilizer

Depending on the vehicle, installing a used ECU may require coding, cloning, immobilizer synchronization or data transfer from the original ECU.

Worldwide Shipping

We ship worldwide. Orders are normally dispatched within 24–48 business hours after confirmation, unless otherwise stated. Economy and Express options may be available, depending on destination.