- Specification
- Description
🚗 Genuine Maruti Suzuki ECU — 33921-68KB1 | K10B Engine Denso Controller HA112400-5072
| Part Number | 33921-68KB1 / 33921M68KB1 |
| Engine Type | K10B (1.0L 3-Cylinder Petrol) |
| Transmission | AT (Automatic) P74 |
| ECU Type | ASSY EPI-A/C (Electronic Fuel Injection with A/C) |
| Denso Hardware | HA112400-5072 |
| Memory | 168KB |
| Voltage | 12V |
| Calibration Code | CB |
| Manufacturer | Denso (Made in India) |
| Brand | Maruti Suzuki / Suzuki Genuine OEM |
| Condition | Brand New — Original Sealed |
| Quantity | 1 Piece |
✅ Compatible Vehicles (K10B Engine)
| Brand | Model | Year Range |
|---|---|---|
| Maruti Suzuki | A-Star (Primary) | 2008–2014 |
| Maruti Suzuki | Alto K10 | 2010–2015 |
| Maruti Suzuki | Celerio | 2014–2020 |
| Maruti Suzuki | WagonR | 2010–2019 |
| Suzuki | Splash | 2008–2014 |
| Suzuki | Alto VII (GF) | 2009–2015 |
⚠️ CRITICAL: This ECU (33921M68KB1 CB) is specifically for MARUTI A-STAR and K10B engine models with automatic transmission (AT P74). Verified and international parts databases (Partsouq). Similar part numbers exist (33921M68KK1, 33921M68KJ1, 33921M68KH) with different calibration codes. Verify EXACT part number match with your old ECU before purchase. Wrong fitment will NOT work.
🔧 What Is This Part?
The Engine Control Unit (ECU) — Part No. 33921-68KB1 (33921M68KB1) — is the brain of your Maruti Suzuki K10B engine. Manufactured by Denso with hardware HA112400-5072, this ECU controls fuel injection, ignition timing, idle control, A/C operation, and emissions. Made in India.
Primary Application: Maruti A-Star (2008–2014). Also compatible with Alto K10, Celerio, WagonR, and Splash with K10B engine.
⚠️ Faulty ECU Symptoms
- 🔴 Check Engine Light ON — Persistent CEL
- 🔄 Engine Misfiring / Rough Idle
- 🐢 Poor Acceleration & Power Loss
- ⛽ Decreased Fuel Efficiency
- 🔇 Engine Stalling / Hard Starting
- ❄️ A/C Not Working — EPI-A/C control failure
🛠️ Important: Programming Required
⚠️ WARNING: This ECU requires immobilizer programming and key matching at an authorized Maruti Suzuki service center. Without programming, the car will NOT start. Professional installation is mandatory.
⚠️ PART NUMBER MATCHING: Ensure your old ECU part number is EXACTLY 33921M68KB1 or 33921-68KB1. Similar numbers like 33921M68KK1, 33921M68KJ1, 33921M68KH have different calibrations and will NOT work in your vehicle.
📦 What's Included
- 1 x Genuine Maruti Suzuki ECU (33921-68KB1 / 33921M68KB1)
- 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, old ECU part number, and calibration code (CB) match before purchase.
🌟 Product Highlights
- ✅ Genuine Maruti Suzuki / Denso ECU — Not a clone
- ✅ Direct Replacement — Same as factory fitted
- ✅ Restores Engine Performance — Smooth idle & power
- ✅ K10B AT Specific — For automatic transmission models
- ✅ 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 ECU, 33921-68KB1, 33921M68KB1, K10B Engine, Denso ECU, HA112400-5072, Alto K10 ECU, A-Star ECU, Celerio ECU, WagonR ECU, Splash ECU, Engine Controller, ASSY EPI-A/C, Made in India