| COGENG Part No. | OEM Part Number | Compatible Hyundai Models | Harness Type / Core Application |
|---|---|---|---|
| CG-HWH-001 | 21Q6-18306 | R330LC-7, R390LC-7 | Main Chassis / Engine Bay Wiring Harness |
| CG-HWH-002 | 21Q6-16600 | R480LC-7 | Main Chassis / Engine & Pump Control Harness |
| CG-HWH-003 | 21Q6-18401 | R330LC-7, R390LC-7 | Cab / Operator Panel Interior Harness |
| CG-HWH-004 | 21Q6-10504 | R480LC-7 | Cab / Operator Panel Interior Harness |
| CG-HWH-005 | 21Q4-15101 | HX330, HX380, HX520 | Main Chassis / Engine & Sensor Harness (HX-Series |


| Parameter | Specification |
|---|---|
| Flex Life | ≥50,000 Cycles (ISO 6722 Standard) |
| Tensile Strength | ≥80N (Single-Wire Test) |
| Operating Temp. | -40°C ~ +105°C |
| Flame Rating | UL94 V-0 (Vertical Burn Test) |
| Chemical Resistance | Resists Diesel, Engine Oil, Weak Acids/Alkalis (PH3-11) |
| Parameter | Specification |
|---|---|
| Type | Deutsch DT Series (or OEM-Specified) |
| Contact Material | Gold-Plated Copper Alloy (<5mΩ Contact Resistance) |
| Locking Mechanism | Dual Locking (Mechanical + Secondary Clip) |
| Sealing | Silicone O-Rings (IP67 Certified) |
| Parameter | Specification |
|---|---|
| Testing | Continuity/Insulation/High-Voltage/Salt Spray (500hrs) |
| Termination | Ultrasonic Welding (vs. Crimping) |
| Reports | 3rd-Party SGS Test Reports (Optional) |
| Model | Series | Engine | Application |
|---|---|---|---|
| 320D | D-Series | CAT C6.4 / C7.1 | ECU/ECM control |
| 320D L | D-Series | CAT C6.4 / C7.1 | ECU/ECM control |
| 320D LN | D-Series | CAT C6.4 / C7.1 | ECU/ECM control |
| 320D RR | D-Series | CAT C6.4 / C7.1 | ECU/ECM control |
| 320D2 | D2-Series | CAT C7.1 | ECU/ECM control |
| 320D2 L | D2-Series | CAT C7.1 | ECU/ECM control |
| Model | Compatibility | Engine |
|---|---|---|
| 318D | ✓ Compatible | CAT C4.2 / C4.4 |
| 319D | ✓ Compatible | CAT C4.4 / C6.4 |
| 321D | ✓ Compatible | CAT C6.4 / C7.1 |
| 323D | ✓ Compatible | CAT C6.6 / C7.1 |
| 324D | ✓ Compatible | CAT C6.6 / C7.1 |
| 325D | ✓ Compatible | CAT C7 / C7.1 |
| 329D | ✓ Compatible | CAT C7.1 / C9 |
| 330D | ✓ Compatible | CAT C9 / C7.1 |
| 336D | ✓ Compatible | CAT C9 / C11 |
| 340D | ✓ Compatible | CAT C11 / C13 |
| 345D | ✓ Compatible | CAT C13 |
| 349D | ✓ Compatible | CAT C13 / C15 |
| 374D L | ✓ Compatible | CAT C18 |
| 390D L | ✓ Compatible | CAT C18 |
| Engine Model | Displacement | Application |
|---|---|---|
| CAT C4.2 | 4.2L | 318D |
| CAT C4.4 | 4.4L | 318D, 319D |
| CAT C6.4 | 6.4L | 319D, 320D, 321D |
| CAT C6.6 | 6.6L | 323D, 324D, 325D |
| CAT C7 | 7.0L | 325D |
| CAT C7.1 | 7.1L | 320D, 321D, 323D, 324D, 325D, 329D, 330D |
| CAT C9 | 9.0L | 329D, 330D, 336D |
| CAT C11 | 11.0L | 336D, 340D |
| CAT C13 | 12.5L | 340D, 345D, 349D |
| CAT C15 | 15.2L | 349D |
| CAT C18 | 18.1L | 374D, 390D |
Note: The 4590786 ECU is specifically programmed for 320D series applications. Verify compatibility with your equipment model and engine serial number before ordering. Contact COGENG with your machine details for exact application verification.
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