| Parameter | Specification |
|---|---|
| Product Name | Komatsu Excavator External Wiring Harness / Outer Chassis Harness |
| Primary Part Numbers | 208-06-71112 (2080671112), 208-06-71113 (2080671113) |
| Brand | COGENG (Premium Aftermarket Replacement) |
| Condition | Brand New, 100% Continuity & Dielectric Withstand Tested |
| Compatible Equipment | Komatsu PC400-7, PC400LC-7, PC450-7, PC450LC-7 Hydraulic Excavators |
| Harness Type | External Outer Wiring Harness — Engine-to-Chassis Interconnect |
| Wire Insulation | Cross-Linked Polyethylene (XLPE) / Heat-Resistant Material Rated to 125°C |
| Connector Systems | Industrial Sealed Connectors with Mechanical Locking and Vibration Resistance |
| Protective Sheathing | High-Temperature Corrugated Nylon Conduit; Self-Fusing Silicone Tape at Branch Junctions |
| Voltage Rating | 24V DC System |
| Environmental Sealing | Sealed Connectors Resistant to Dust, Moisture, and Chemical Exposure |
| Chemical & Abrasion Resistance | Resistant to Diesel Fuel, Engine Oil, Hydraulic Fluid, and Construction Site Contaminants |
| Quality Assurance | 100% Automated Pin-to-Pin Continuity Mapping Against OEM Schematic; Dielectric Withstand Test; Visual Inspection |
| Certification | ISO 9001 Certified Manufacturing Facility |
| Place of Origin | Guangdong, China |
| Supply Capacity | 500 Pieces per Month |
| Shipping Weight | Approx. 3.0 – 7.0 kg (Configuration Dependent) |
| Package Dimensions | 60 x 48 x 18 cm (Coiled and Flat-Packed in Protective Carton) |
| Packing | Inner: PP Bag with Anti-Static Protection; Outer: Heavy-Duty Export-Grade Corrugated Carton Box with Custom-Cut Protective Foam |
| Payment Terms | Western Union, L/C (Letter of Credit), T/T (Telegraphic Transfer), MoneyGram, D/A (Documents against Acceptance), D/P (Documents against Payment) |
| Shipping Mode | By Air, By Sea, By Express (FedEx, UPS, DHL, TNT, etc.) |
| Minimum Order Quantity | Acceptable Trial Order — Single Unit Orders Welcome |
| Return Policy | Non-Returnable / Non-Exchangeable (Comprehensive DOA Guarantee Included) |
The COGENG External Wiring Harness, identified by primary part numbers 208-06-71112 and 208-06-71113, is a precision-manufactured electrical distribution harness engineered as a direct, form-fit-function replacement for the Komatsu PC400-7 and PC450-7 series hydraulic excavator platforms. These 40- to 45-ton class excavators are part of Komatsu's Dash-7 generation, machines deployed in large-scale construction, quarry, mining, and heavy infrastructure applications worldwide.
This harness serves as the primary electrical link between the engine compartment and the machine chassis. It is the external outer wiring harness, responsible for transmitting power and control signals between the engine (including the SAA6D125E series engine) and the chassis-mounted systems, including the ECU, alternator, starter motor, sensors, and actuators . The harness provides the pathways for critical signals that govern engine operation, hydraulic control, and machine monitoring. A damaged or degraded external harness can result in a wide range of symptoms, from intermittent fault codes and sensor errors to engine derating, hard starting, or complete electrical failure.
The construction of the COGENG 208-06-71112 / 208-06-71113 harness is designed for the severe operating conditions of large excavators. The conductors are multi-strand copper, sized appropriately for the current loads of each circuit. The insulation is heat-resistant and rated for the high-temperature environment of the engine bay. All connectors are industrial sealed types with mechanical locking and vibration resistance, protecting against dust and moisture ingress . The harness is routed with high-temperature corrugated nylon conduit for mechanical protection, with branch junctions sealed using self-fusing silicone tape to prevent moisture wicking and corrosion.
The part numbers 208-06-71112 and 208-06-71113 are closely related references for this external harness application on the PC400-7 and PC450-7 platforms . They are commonly listed together as interchangeable or superseding references for the same harness family. The COGENG aftermarket replacement is engineered to match the OEM routing, branch lengths, and connector positions, ensuring a drop-in installation without modification.
The 208-06-71112 / 208-06-71113 harness is specifically designed for the Komatsu PC400-7 and PC450-7 excavator platforms. Always provide your complete machine serial number for final compatibility verification.
| Brand | Model | Machine Class |
|---|---|---|
| Komatsu | PC400-7 | 40-Ton Hydraulic Excavator |
| Komatsu | PC400LC-7 | 40-Ton Hydraulic Excavator (Long Carriage) |
| Komatsu | PC450-7 | 45-Ton Hydraulic Excavator |
| Komatsu | PC450LC-7 | 45-Ton Hydraulic Excavator (Long Carriage) |
Note: These models share a common Dash-7 generation electrical architecture. The harness is typically compatible with engine variants SAA6D125E-3 and SAA6D125E-5. Verification with your machine's complete serial number and engine model is mandatory .
Complete External Wiring Harness Assembly (1 unit): Fully assembled harness with all connectors, terminals, protective conduit sheathing, factory-positioned P-clips, and identification labels pre-installed.
All Sensor, Actuator, and System Connectors: Every branch is pre-terminated with the correct sealed contacts and silicone wire seals.
High-Current Power and Ground Terminals: Heavy-gauge alternator, starter motor, and battery cables terminated with appropriate ring terminals, sealed with heat shrink.
PP Bag Inner Packing and Export Carton: The harness is sealed in a PP bag with anti-static protection and flat-packed in a rigid, double-wall corrugated carton with custom-cut protective foam and "Do Not Cut — Electrical Harness Inside" labels.
PC400-7 and PC450-7 Specificity: The 208-06-71112 / 208-06-71113 harness is designed for the Komatsu PC400-7 and PC450-7 excavator platforms. It is not compatible with the earlier PC400-6 or the later PC400-8, PC450-8 models, which utilize different electrical architectures and connector generations.
Part Number Relationship: The 208-06-71112 and 208-06-71113 part numbers are associated references for this external harness application. They are commonly listed together as interchangeable or superseding references for the same harness family on the PC400-7 / PC450-7 platform . Our technical team will verify the correct configuration for your specific machine serial number.
Serial Number Verification is Mandatory: Komatsu implemented running production changes within the Dash-7 series production run. Providing your complete machine serial number allows our technical team to verify the exact harness variant your machine requires.
External Harness Section: This is an external outer wiring harness (engine-to-chassis interconnect). It is not the internal engine harness or the cab harness. Please verify the specific section you are replacing before ordering .
Professional Installation Required: Installing an external wiring harness on a large excavator requires methodical routing through the engine bay and chassis, proper securing at all mounting points, and verification of all connections. Installation should be performed by a qualified heavy equipment technician with access to the Komatsu service manual and diagnostic software.
Note: This is a summarized procedural guide. Always follow the Komatsu service manual for your specific model.
Step 1: Safety Lockout and Documentation
Disconnect negative (-) and positive (+) battery cables. Photograph every aspect of the existing harness routing, documenting all P-clip locations, routing through the engine bay and chassis, and all connector orientations.
Step 2: Old Harness Systematic Removal
Label every connector with numbered wire tags as it is disconnected. Disconnect the controller connector(s), all engine sensor connectors, alternator, starter motor, and chassis interface connectors. Remove the ring terminals from the battery and ground points. Cut zip ties, release P-clips, and carefully extract the old harness.
Step 3: New Harness Visual Comparison
Uncoil the new COGENG harness beside the old harness. Compare connector types, branch lengths, and mounting clip positions. Verify every match before proceeding.
Step 4: New Harness Routing and Connection
Route the harness following the photographic reference. Secure loosely at all P-clip and standoff locations. Connect the controller connector first. Systematically reconnect all sensor, actuator, alternator, starter, and chassis interface connectors. Install and torque all power and ground ring terminals to OEM specifications. Tighten all P-clips and install new high-temperature zip ties. Verify clearance from exhaust, turbo, and all moving parts.
Step 5: Power-Up and Full Functional Test
Reconnect batteries. Connect Komatsu diagnostic software. Verify no active diagnostic trouble codes. Start the engine and verify immediate oil pressure and alternator charging. Monitor all parameters. Warm to operating temperature. Cycle all functions. Confirm zero fault codes after complete test.
| Detail | Description |
|---|---|
| Shipping Methods | By Air: Cost-effective for medium-weight orders. By Sea: Most economical for bulk orders. By Express (FedEx, UPS, DHL, TNT): Fastest door-to-door service for machine-down emergencies. |
| Estimated Delivery Time | Express: 3-5 business days. Air Freight: 8-15 days. Sea Freight: 30-45 days. Transit times are carrier-dependent. Tracking provided within one business day of dispatch. |
| Packing | Inner: PP bag with anti-static protection. Outer: Heavy-duty export-grade corrugated carton box with custom-cut protective foam. |
| Payment Terms | Western Union, L/C, T/T, MoneyGram, D/A, D/P. Standard terms: 30% T/T deposit, 70% balance before shipment. |
| Minimum Order Quantity | Acceptable Trial Order — Single unit orders welcomed. |
| Policy Point | Terms |
|---|---|
| Merchant Return Policy | All sales are final. No returns or exchanges. A wiring harness cannot be restocked once departed from our controlled environment. |
| DOA Quality Guarantee | Full replacement for manufacturing defects reported within 7 days of delivery. Harness must be in original, uninstalled condition. |
| Pre-Shipment Confirmation | We send high-resolution photos of your exact harness for written approval before dispatch. |
Q1: What are the symptoms of a failing 208-06-71112 / 208-06-71113 harness?
A: Common symptoms include multiple unrelated fault codes appearing simultaneously, intermittent controller communication loss, erratic sensor readings, engine derate or hard starting, charging system faults, visible chafing or melted insulation, green corrosion at connector backshells, and a successful "wiggle test" where manipulating the harness causes electrical values to drop out.
Q2: What is the relationship between 208-06-71112 and 208-06-71113?
A: These two part numbers are associated references for this external harness application on the PC400-7 / PC450-7 platform. They are commonly listed together as interchangeable or superseding references for the same harness family . Our technical team will verify the correct configuration for your machine serial number.
Q3: Is this the complete machine harness or just the external harness?
A: The 208-06-71112 / 208-06-71113 is an external outer wiring harness (engine-to-chassis interconnect). It is not the internal engine harness or the complete machine harness .
Q4: Do you accept trial orders for a single unit?
A: Yes, absolutely. We welcome trial orders for single units from first-time customers. Contact our sales team to arrange your trial order.
Q5: What certifications does COGENG hold?
A: COGENG is an ISO 9001 certified manufacturer, ensuring consistent manufacturing processes, rigorous inspection protocols, and full batch traceability.
