This engine wiring harness is an essential replacement part for:
Repairing SK200-6E excavators experiencing engine-related electrical issues, diagnostic trouble codes (DTCs), or performance degradation.
Scheduled maintenance or major engine overhauls where the existing harness is worn, damaged, or brittle.
Restoring factory-level reliability and ensuring the engine management system operates as designed by the manufacturer.
| Parameter | Specification |
|---|---|
| COGENG Part Number | YN116E01021P1 |
| OEM Equivalent | Kobelco YN116E01021P1 |
| Product Type | Engine Wiring Harness Assembly |
| Application | Complete engine electrical system |
| Harness Type | Main engine harness (ECU, injectors, sensors) |
| Compatible Model | Kobelco SK200-6E Excavator |
| Series | Dash 6E (Enhanced / Tier 2 / Stage II) |
| Brand | Part Number |
|---|---|
| COGENG | YN116E01021P1 |
| Kobelco | YN116E01021P1 |
| Interchange | YN116E01021P2, YN116E01021P3, LC16E01011P1, LC16E01011P2 |
| Parameter | Specification |
|---|---|
| System Voltage | 24V DC (Kobelco standard) |
| Current Capacity | Up to 45A (main power circuits) |
| Wire Gauge Range | 14AWG - 20AWG (signal) / 8AWG - 12AWG (starter/alternator) |
| Insulation Resistance | ≥100MΩ @ 500V DC |
| Dielectric Strength | 1500V AC/60s No Breakdown |
| Voltage Drop | <0.5V @ rated load |
| Temperature Rating | -40°C to +125°C (engine bay rated) |
| Component | Material Specification |
|---|---|
| Conductor | High-purity tinned copper (99.9%) |
| Wire Insulation | Heat-resistant XLPE / PVC (125°C rated) |
| Outer Wrapping | Automotive-grade cloth tape / Corrugated conduit |
| Connector Housings | OEM-grade Nylon 66 / PBT (UL94 V-0) |
| Terminals | Tin-plated / Gold-plated brass |
| Grommets/Bushings | EPDM Rubber (UV resistant) |
| Shielding | Aluminum foil + copper braid (sensor circuits) |
| Identification | Heat-shrink printed circuit labels |
| Diesel-resistant jacketing | Special compound for engine bay |
| Parameter | Rating |
|---|---|
| Temperature Range | -40°C to +125°C |
| Ingress Protection | IP67 (engine connectors) |
| Vibration Resistance | 15G @ 50-1000Hz |
| UV Resistance | 500+ hours weatherometer |
| Chemical Resistance | Resists diesel, oil, hydraulic fluid, coolant |
| Abrasion Resistance | Corrugated conduit in high-wear areas |
| Parameter | Specification |
|---|---|
| Model | Kobelco SK200-6E Excavator |
| Type | 20-ton Crawler Excavator |
| Series | Dash 6E (Enhanced / Tier 2 / Stage II) |
| Engine | Hino JO8E (most common) / Mitsubishi 6D16 |
| Engine Power | 110-120 kW (147-160 HP) |
| Operating Weight | 19,000 - 21,000 kg |
| Production Years | Approx. 2000-2007 |
| Engine Model | Displacement | Cylinders | Fuel System | Notes |
|---|---|---|---|---|
| Hino JO8E | 8.0L | 6-cylinder | In-line pump / Electronic governor | Most common in SK200-6E |
| Mitsubishi 6D16 | 8.2L | 6-cylinder | In-line pump / Electronic governor | Some models |
| System | Components Connected |
|---|---|
| Engine Control (ECU) | Engine Control Unit, main power, ground, CAN bus |
| Fuel System | Injectors (6-cylinder), fuel pump, fuel pressure sensor |
| Timing System | Crank position sensor, cam position sensor |
| Air Intake | Boost pressure sensor, intake air temperature sensor |
| Throttle Control | Electronic governor actuator (if equipped) |
| Charging System | Alternator, starter motor (may be separate harness) |
| Engine Sensors | Oil pressure switch, coolant temperature sensor |
| ECU Interface | Cab-to-engine communication, diagnostic port |
| Step | Action | Critical Note |
|---|---|---|
| 1 | Park SK200-6E on level surface, lower bucket, engage safety lock | Safety first |
| 2 | Disconnect battery (negative first - both batteries) | Essential safety step (24V system) |
| 3 | Allow engine to cool completely | Prevent burns (1 hour minimum) |
| 4 | Open engine hood (SK200-6E right side) | Access engine bay |
| 5 | Remove engine covers and acoustic panel | Access injectors/ECU |
| 6 | Document all connections (take MANY photos) | Especially ECU and injectors |
| 7 | Locate ECU (behind right kick panel or in engine bay) | Access required |
| 8 | Disconnect ECU (48-60 pin) | Note locking mechanism |
| 9 | Disconnect injectors (6 connectors) | Mark cylinder order (1-6, 1 at fan end) |
| 10 | Disconnect crank sensor (flywheel housing) | 3-pin Deutsch, hard to reach |
| 11 | Disconnect cam sensor (front timing cover) | 3-pin Deutsch |
| 12 | Disconnect boost sensor (intake manifold) | 3-pin Deutsch |
| 13 | Disconnect coolant temp sensor (thermostat housing) | 2-pin M12 |
| 14 | Disconnect oil pressure switch (near filter) | 1 or 2-pin |
| 15 | Disconnect alternator (2-pin + B+ nut) | Note wire locations |
| 16 | Disconnect starter (solenoid + battery cable) | Note orientation |
| 17 | Release all clips, ties, clamps | Save reusable clips |
| 18 | Remove old harness | Follow routing path |
| 19 | Clean mounting surfaces | Remove debris, corrosion |
| 20 | Lay new harness following original routing | Exact path match |
| 21 | Install grommets, clamps, heat shields | Prevent chafing |
| 22 | Connect ECU (48-60 pin) | Ensure fully seated, locking lever engaged |
| 23 | Connect injectors (6) in correct order | Cylinder 1 is front (fan end) |
| 24 | Connect crank sensor (flywheel) | 3-pin Deutsch, click |
| 25 | Connect cam sensor (front cover) | 3-pin Deutsch, click |
| 26 | Connect boost sensor (intake) | 3-pin Deutsch |
| 27 | Connect coolant temp sensor | 2-pin M12, screw collar |
| 28 | Connect oil pressure switch | Push on, ensure tight |
| 29 | Connect alternator (2-pin + B+ nut) | 10mm nut, tight |
| 30 | Connect starter (solenoid + battery cable) | 12mm nut, tight |
| 31 | Verify all ground connections (2-3 points) | Clean, tight |
| 32 | Secure harness with clips and ties | Every 100-150mm |
| 33 | Double-check all connectors | All locked |
| 34 | Reconnect battery (positive last) | Momentary contact check |
| 35 | Start engine, check for leaks, listen for noise | Verify operation |
| 36 | Check engine with Kobelco diagnostic tool (if available) | Clear fault codes |
| 37 | Close hood and covers | No wire pinching |
| Note | Detail |
|---|---|
| Battery Disconnect | SK200-6E has 2x12V batteries in series for 24V. Disconnect both negative terminals first. |
| Cool Engine | SK200-6E engine bay is compact. Exhaust manifold remains hot for 1+ hours. |
| Injector Order | Cylinder 1 is at the fan (front), cylinder 6 at flywheel (rear). Mark before removal. |
| Crank Sensor Access | Located at flywheel housing, driver's side (left). Requires long extension. |
| ECU Location | SK200-6E ECU is behind the right kick panel (operator cab) or in engine bay. |
| Routing Path | Follow original along valve cover. Keep away from injector lines and turbo. |
| Heat Sources | Turbo (right side) is extremely hot. Harness must be routed with heat shielding. |
| Connector Sealing | SK200-6E operates in wet conditions. Ensure all seals are seated. |
| Ground Points | Main ground: battery negative to engine block. Secondary: engine to chassis. |
| Diesel leaks | SK200-6E injection pump area prone to diesel leaks. Keep harness away. |
| Kobelco diagnostic | Strongly recommended to clear fault codes after harness replacement. |
Q: What Kobelco models use the YN116E01021P1 engine wiring harness?
A: The YN116E01021P1 engine wiring harness is a direct fit replacement specifically designed for Kobelco SK200-6E excavator models. Always verify the part number on your original harness tag or cross-reference your machine's serial number with the parts manual to confirm exact compatibility before ordering.
Q: What are the symptoms of a failing engine wiring harness on a Kobelco SK200-6E?
A: Common symptoms include intermittent engine stalling, hard starting or no-start conditions, erratic throttle response, incorrect sensor readings on the monitor panel, illuminated warning indicators, or communication faults between the engine ECU and machine controller. Heat, vibration, and age-related insulation breakdown near the engine block are typical root causes.
Q: Is this harness a direct plug-and-play replacement?
A: Yes, the COGENG YN116E01021P1 harness is manufactured to exact OEM specifications including connector types, pin assignments, wire gauge, and precise routing length. It is a direct plug-and-play replacement requiring no wire splicing, soldering, or modifications when installed on compatible SK200-6E models.
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