Mazda EGI engine-control module — N3H1-18-881F, listed for RX-8

Used

€40

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Condition: Used
Brand: Mazda
Item reference: 225349231431

Catalogue snapshot: 12 October 2026. Please confirm current availability with Nick's Garage.

Part identification

Research & application notes

Mazda/Denso EGI powertrain/engine control module N3H1-18-881F, supplied for RX-8.

Research reviewed 18 October 2026Two genuine-parts retailer records confirm the exact powertrain-module identity; RX-8 is the owner-listed application and the exact calibration fitment remains unresolved.

Tested and working — confirmed by Nick’s Garage

Reference / label codesN3H1-18-881F · N3H1

Catalogue applications are not a guarantee for this exact supplier revision. Match VIN and full label before ordering.

Application details

An exact application has not been independently confirmed. Refer to the identification and checks below.

Model/Series: Not independently confirmed
Year: Not independently confirmed
Engine: Not independently confirmed
Transmission: Not independently confirmed
Market: Not independently confirmed
Catalogue scope: Not independently confirmed

Identification & application notes

The offered photograph reads N3H1 18 881F and a Denso 279700-590... supplier line. The complete Mazda number is the primary identifier.
Monotaro and an additional YoshiParts genuine-parts record independently identify exact N3H1-18-881F as a powertrain-control module. Neither retrieved record provides a complete vehicle-specific production, transmission or emissions-market application row.
RX-8 is retained in the title as the owner's listed application. Exact RX-8 chassis, engine output, 5MT/6MT/automatic calibration and market compatibility have not been independently established for this individual module.
Related N3H1 revisions or similar N3H2, N3M1 and N3R references must not be treated as automatic replacements. A shared RX-8/13B model-family description does not establish ECU interchange.
Confirm donor VIN/frame, complete Mazda/Denso codes, calibration and immobilizer/PCM pairing with an installer. No whole-model-year-range, plug-and-play or no-programming claim is made.

Confirm before ordering

These details remain unconfirmed for this individual item:

Vehicle-specific OEM application: donor VIN/frame, production date, chassis, market, emissions and transmission
Complete Denso supplier code, software/calibration and stock versus modified status
Immobilizer/key-set inclusion, pairing and programming requirements
Any exact supersession or replacement allowed for the buyer vehicle

Research sources & evidence scope (4)

Monotaro Mazda original-parts N3H1-18-881F
Exact powertrain-control module identity
Mazda Motor Corporation RX-8 / RENESIS release 2003
Mazda's November 2003 release identifies RX-8 and RENESIS model context. It does not identify N3H1-18-881F, its transmission/emissions calibration, or a vehicle-specific application.
YoshiParts genuine Mazda record — N3H1-18-881F powertrain module
Additional exact-code powertrain-control identity. Retrieved text does not establish the RX-8 vehicle-specific year, transmission, emissions or calibration matrix; related replacement references are not an unconditional interchange certificate.
Monotaro Mazda N3H1 module family — separate revision records
Lists exact N3H1-18-881F separately from other revisions. Confirms module identity, not a complete vehicle application or automatic interchange between revisions.

Before you order

Match the exact part

Share your vehicle identification details, full component label and existing part number before ordering. Fitment, coding and installation must be confirmed separately. For magazines and non-automotive items, check the product description and photographs.