- Specification
- Description
🚗 Genuine Maruti Suzuki ECM — 33920-66T0 N4 | Denso Engine Control Module
| Part Number | 33920-66T0 / 33920M66T0 |
| Hardware Code | N4 (Denso Platform) |
| Manufacturer | Denso (OEM Supplier) |
| Brand | Maruti Suzuki Genuine |
| Origin | Made in India |
| Condition | Brand New — Original Sealed |
| Quantity | 1 Piece |
| Shipping | DHL / FedEx / Aramex Worldwide |
✅ Compatible Vehicles (Official Maruti Data)
| Brand | Model | Variant | Fuel | Year |
|---|---|---|---|---|
| Maruti Suzuki | Brezza | CNG LXI 5MT | CNG | 2022–Present |
| Maruti Suzuki | Brezza | CNG VXI 5MT | CNG | 2022–Present |
| Maruti Suzuki | Brezza | CNG ZXI 5MT | CNG | 2022–Present |
⚠️ MANDATORY: This ECM is specifically for Maruti Suzuki Brezza CNG variants (2022–Present). Verify with your VIN or old ECU part number before purchase. Wrong fitment will NOT work.
🔧 What Is This Part?
The Engine Control Module (ECM) — Part No. 33920-66T0 with hardware code N4 — is a genuine Denso manufactured engine control unit for Maruti Suzuki Brezza CNG variants. It manages fuel injection, ignition timing, idle control, CNG switching, and emission systems. Made in India.
⚠️ Faulty ECM Symptoms
- 🔴 Check Engine Light ON — Persistent CEL
- 🔄 Engine Misfiring / Rough Idle
- 🐢 Poor Acceleration & Power Loss
- ⛽ CNG Switching Issues — Not switching to CNG mode
- 🔇 Engine Stalling / Hard Starting
🛠️ Important: Programming Required
⚠️ WARNING: This ECM requires immobilizer programming and key matching at an authorized Maruti service center. Without programming, the car will NOT start. Professional installation is mandatory.
📦 What's Included
- 1 x Genuine Maruti Suzuki ECM (33920-66T0 N4)
- Original sealed packaging
- Barcode verification sticker
🚫 No Warranty / Return After Fitting Policy
⚠️ IMPORTANT:
- No warranty after fitting: Electronic component — once installed, no return or warranty claim accepted.
- DOA only: Warranty valid only for Dead on Arrival — defective BEFORE fitting.
- Test before fitting: Get it tested by a professional technician before installation.
- Verify compatibility: Check VIN and part number match before purchase.
🌟 Product Highlights
- ✅ Genuine Maruti Suzuki / Denso ECM — Not a clone
- ✅ Direct Replacement — Same as factory fitted
- ✅ Restores Performance — Smooth idle & CNG switching
- ✅ Made in India — Original OEM quality
🌍 Worldwide Shipping
We ship all over the world via DHL, FedEx, and Aramex. Secure packaging with tracking number provided.
Maruti Suzuki ECM, 33920-66T0, 33920M66T0, Denso ECU, Engine Control Module, N4 ECM, Brezza ECM, Brezza CNG, Maruti Genuine Parts, Made in India, Worldwide Shipping