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- Specification
- Description
- Compatibility
- Warranty
🚗 Genuine Suzuki FRONX EPI Controller — 33920-74T20 | Bosch MOTRONIC
This is a genuine OEM Maruti Suzuki EPI Controller (ECM/ECU) with part number 33920-74T20 (also listed as 33920M74T20), manufactured by Bosch India under the MOTRONIC engine management system. Designed specifically for the K12N 1.2L Dual-Jet engine powering the Maruti Suzuki FRONX compact SUV models.
🔑 Key Identifiers
OEM Part No: 33920-74T20
Alternate No: 33920M74T20
Bosch No: 0 261 S10 6W3
Bosch Serial: 4740006622 0181 7963
Mfg Date: 25-03-27
System: MOTRONIC
Origin: Made in India 🇮🇳
Code: NH 068PA
📋 Technical Specifications
| Specification |
Details |
| Part Type |
EPI Controller / ECM / ECU |
| OEM Part Number |
33920-74T20 |
| Alternate Numbers |
33920M74T20, NH 33920-74T20, 068PA |
| Bosch Part Number |
0 261 S10 6W3 |
| Bosch Serial Number |
4740006622 0181 7963 |
| Manufacturing Date |
25-03-2027 |
| Engine Management System |
Bosch MOTRONIC |
| Country of Manufacture |
India 🇮🇳 |
| Compatible Engine |
K12N 1.2L Dual-Jet Petrol |
| Fuel System |
Dual-Jet Multi-point Injection (MPI) |
| Condition |
✓ Genuine OEM / New |
✅ Guaranteed Genuine: This is a 100% original Maruti Suzuki part manufactured by Bosch. Not aftermarket, not refurbished — pure OEM quality with full compatibility assurance. Verified via official Maruti Suzuki parts catalog.
📝 Product Description
The Maruti Suzuki FRONX EPI Controller 33920-74T20 is the central brain of your vehicle's engine management system. Manufactured by Bosch India using their renowned MOTRONIC technology, this ECM ensures optimal fuel delivery, ignition timing, and emission control for the K12N 1.2L Dual-Jet engine powering the stylish Maruti Suzuki FRONX compact SUV.
⚡ What Does This ECM Control?
⛽ Dual-Jet Fuel Injection
Two injectors per cylinder for better efficiency
⚡ Ignition Timing
Optimal spark timing for performance
🌡️ Idle Control
Stable idle speed under all conditions
🌿 Emissions Control
Meets BS6 Phase 2 / RDE standards
🔧 VVT Control
Variable valve timing management
📡 CAN Bus Communication
Links with ABS, ESP, BCM modules
🔍 How to Verify This Part
Check the white label on the aluminum casing for these exact markings:
BOSCH 0 261 S10 6W3 (176)
4740006622 0181 7963
25-03-27 MOTRONIC
NH 33920-74T20 068PA
Made in India
⚠️ Common Symptoms of Faulty ECM
| Symptom |
Possible Cause |
| 🚫 Engine cranks but won't start |
ECM not sending fuel/ignition signals |
| 💡 Check Engine Light stays ON |
Internal ECM fault or corrupted data |
| ⛽ Poor fuel economy |
Incorrect fuel mapping in ECM |
| 🔧 Rough idling or stalling |
Idle control circuit failure |
| 📱 No OBD communication |
ECM internal failure or damaged CAN bus |
| 🔥 Engine misfires |
Incorrect ignition timing from ECM |
💡 Pro Tip: Always verify the Bosch serial number (4740006622) and manufacturing date (25-03-27) before purchasing. Counterfeit ECMs often have mismatched or missing Bosch markings. The "NH" prefix code confirms this is a FRONX-specific unit.
🚘 Vehicle Compatibility
This EPI Controller is specifically programmed for the K12N 1.2L Dual-Jet engine with advanced Dual-Jet Multi-point Injection. Below is the complete compatibility chart for the Maruti Suzuki FRONX:
| Brand |
Model |
Engine |
Year Range |
Transmission |
| Maruti Suzuki |
FRONX Sigma |
K12N 1.2L Dual-Jet |
2023 – Present |
5-Speed MT / 5-Speed AMT |
| Maruti Suzuki |
FRONX Delta |
K12N 1.2L Dual-Jet |
2023 – Present |
5-Speed MT / 5-Speed AMT |
| Maruti Suzuki |
FRONX Delta+ |
K12N 1.2L Dual-Jet |
2023 – Present |
5-Speed MT / 5-Speed AMT |
| Maruti Suzuki |
FRONX Zeta |
K12N 1.2L Dual-Jet |
2023 – Present |
5-Speed MT / 5-Speed AMT |
| Maruti Suzuki |
FRONX Alpha |
K12N 1.2L Dual-Jet |
2023 – Present |
5-Speed MT / 5-Speed AMT |
🔧 K12N Dual-Jet Engine Specifications
| Specification |
Value |
| Engine Code |
K12N |
| Displacement |
1,197 cc (1.2L) |
| Cylinders |
4, Inline |
| Valves |
16 (4 per cylinder) |
| Bore × Stroke |
73.0 mm × 71.5 mm |
| Compression Ratio |
11.5:1 |
| Max Power |
90 PS @ 6,000 rpm |
| Max Torque |
113 Nm @ 4,400 rpm |
| Fuel System |
Dual-Jet Multi-point Injection (MPI) |
| Valvetrain |
Dual VVT (Variable Valve Timing) |
| Emission Standard |
BS6 Phase 2 / RDE Ready |
⚠️ Important: This ECM is NOT compatible with FRONX 1.0L Boosterjet (K10C) or 1.2L CNG variants. Always match your engine code before ordering. The K12N Dual-Jet engine is specific to FRONX petrol variants launched in 2023.
📊 Related OEM Part Numbers
| Part Number |
Vehicle Application |
Engine |
| 33920-74T20 |
FRONX 1.2L Petrol (2023+) |
K12N Dual-Jet |
| 33920M74T00 |
FRONX 1.2L Sigma MT |
K12N |
| 33920-74TB0 |
FRONX 1.2L (NJ Code) |
K12N |
| 33920M74T20 |
FRONX 1.2L (Barcode Format) |
K12N |
🛡️ Warranty & Return Policy
🛡️
6 Months Warranty
Full replacement guarantee against manufacturing defects
↩️
30-Day Return
Hassle-free return if part doesn't match your vehicle
✅
Tested Before Shipping
Every unit verified on OEM test bench
🚚
Worldwide Shipping
Express delivery with tracking number
❌ Warranty Void Conditions: Physical damage, water ingress, improper installation, or ECU reprogramming by unauthorized technicians will void warranty. Professional installation recommended. Always verify VIN and engine code before installation. This ECM requires dealer-level programming for certain FRONX variants.
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