The part numbers 0001044 and 4296401 are consistently identified across multiple sources as an engine wiring harness for Hitachi EX-series (-2 generation) excavators, specifically the EX100-2, EX120-2, and EX200-2 models, not the ZX series. One source explicitly notes that for the -3, -5, or other generations (including ZX), the OEM codes differ, and compatibility must be verified by chassis serial number.
Therefore, the following product page is presented with a prominent compatibility warning and is structured for the EX100-2 / EX120-2 / EX200-2 application based on the verified part number data. If you require a harness for a Hitachi ZX series machine, please provide the machine's serial number and the specific ZX model so the correct part can be identified.
| Parameter | Specification |
|---|---|
| Product Name | Hitachi Engine Wiring Harness / Inner Wiring Harness |
| Primary Part Number | 0001044 |
| Associated / Cross-Reference Part Number | 4296401 |
| Brand | COGENG (Premium Aftermarket Replacement) |
| Condition | Brand New, 100% Continuity & Dielectric Withstand Tested |
| Verified Compatible Equipment | Hitachi EX100-2, EX120-2, EX200-2 Hydraulic Excavators |
| Engine Compatibility | Isuzu 4BD1, 6BD1 (Series -2 Engines) |
| Harness Type | Engine Wiring Harness / Inner Harness — ECU, Sensors, Injectors, Alternator, Starter |
| Wire Insulation | Cross-Linked Polyethylene (XLPE) / Heat-Resistant Materials (Rated to 150°C per OEM Spec) |
| Connector Systems | OEM-Style Sealed Connectors with Moisture and Vibration Resistance |
| Protective Sheathing | High-Temperature Corrugated Nylon Conduit; Self-Fusing Silicone Tape at Branch Junctions; Heat Shrink Boots at Connector Backshells |
| Voltage Rating | 24V DC System |
| Environmental Sealing | Sealed Connectors Resistant to Moisture, Oil, and Fuel Exposure |
| Chemical & Abrasion Resistance | Resistant to Diesel Fuel, Engine Oil, and Construction Site Contaminants; Abrasion-Protected |
| Quality Assurance | 100% Continuity Test; Visual Inspection; Pre-Wired and Tested for Reduced Installation Time |
| Certification | ISO 9001 Certified Manufacturing Facility |
| Place of Origin | Guangdong, China |
| Supply Capacity | 500 Pieces per Month |
| Shipping Weight | ~4.7 kg (Gross, per OEM packaging data) |
| Package Dimensions | Approx. 51 x 33 x 20 cm |
| Packing | Inner: PP Bag with Anti-Static Protection; Outer: Heavy-Duty Export-Grade Corrugated Carton Box with 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 Engine Wiring Harness, identified by primary part number 0001044 and cross-referenced with 4296401, is a precision-manufactured electrical distribution harness engineered as a direct replacement for the Hitachi EX-series (-2 generation) hydraulic excavator platform. Based on verified OEM data, this harness is specifically designed for the EX100-2, EX120-2, and EX200-2 models equipped with Isuzu 4BD1 or 6BD1 engines.
This harness serves as the complete electrical nervous system of the engine, providing the critical pathways for power distribution, sensor signal transmission, and control command delivery between the Engine Control Unit (ECU) and the engine's key components. It integrates all electrical circuits required for engine operation, including fuel injector power supply, sensor signals (temperature, oil pressure, engine speed), alternator and starter connections, and ECU communication. A damaged or degraded harness—with broken wires, corroded connectors, or melted insulation—will generate ECU errors, hard starting, uneven running, or unexpected engine shutdowns. Replacing it with a correctly specified COGENG harness restores factory electrical parameters and reliable operation.
The construction of the COGENG 0001044 harness reflects the demanding requirements of heavy equipment operation. Each wire is calibrated to the correct cross-section for its specific circuit, using copper conductors for optimal conductivity. The insulation is selected for resistance to temperatures up to 150°C and protection against abrasion, ensuring stable performance in extreme job site conditions. Connectors are sealed and resistant to moisture and vibration. The harness is pre-wired and tested, reducing installation time and the risk of connection errors, and is built with mounting clips and retainers that match the original design for drop-in fitment without modification.
Critical Compatibility Warning: Multiple independent sources confirm that part numbers 0001044 and 4296401 are associated with the EX100-2, EX120-2, and EX200-2 series, not the ZX series. One source explicitly states: "This harness is specific to the -2 series of Hitachi excavators. For the -3, -5, or other generations, the OEM codes differ". If your machine is a ZX series, this part is not the correct replacement. Please verify your machine's exact model and serial number before ordering.
The 0001044 / 4296401 harness is validated for the following Hitachi EX-series (-2 generation) excavator models. This harness is not verified for ZX series machines.
| Brand | Model | Machine Class | Engine |
|---|---|---|---|
| Hitachi | EX100-2 | 10-Ton Hydraulic Excavator | Isuzu 4BD1 |
| Hitachi | EX120-2 | 12-Ton Hydraulic Excavator | Isuzu 4BD1 |
| Hitachi | EX200-2 | 20-Ton Hydraulic Excavator | Isuzu 6BD1 |
Note: Some listings also reference EX100M-2 and RX2000-2 compatibility. Verification with your machine's complete serial number is mandatory.
Complete Engine Wiring Harness Assembly (1 unit): The fully assembled, tested harness with all OEM-style connectors, terminals, protective conduit, and mounting clips pre-installed.
Sealed Connectors: Every branch is pre-terminated with the correct sealed connectors for ECU, sensors, injectors, alternator, and starter.
Protective Sheathing: High-temperature conduit and branch junction sealing pre-applied.
Mounting Clips and Retainers: OEM-style clips for direct fitment to the engine and chassis mounting points.
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 protective foam.
NOT for ZX Series: The 0001044 / 4296401 harness is verified for EX100-2, EX120-2, and EX200-2 excavators. It is not a ZX series harness. If your machine is a ZX200, ZX210, or any other ZX model, please contact us with your serial number so we can identify the correct part.
Serial Number Verification is Mandatory: Hitachi wiring harnesses are specific to each machine generation. Provide your complete machine serial number (chassis number), the old part number if legible, the exact Isuzu engine model (4BD1 or 6BD1), and the year of manufacture for 100% compatibility confirmation.
Engine Configuration: This harness is designed for the Isuzu 4BD1 (EX100-2, EX120-2) and Isuzu 6BD1 (EX200-2) engines. Verify your engine model before ordering.
Harness Section: The 0001044 is typically described as an inner wiring harness or engine wiring harness. It is not the complete machine harness. Please verify the specific harness section you are replacing.
Professional Installation Required: Installing an engine wiring harness requires routing through tight engine bay clearances, 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 Hitachi service manual and diagnostic software.
Note: This is a summarized procedural guide. Always follow the Hitachi 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 around the engine, and all connector orientations.
Step 2: Old Harness Systematic Removal
Label every connector with numbered wire tags as it is disconnected. Disconnect all sensors, injectors, alternator, and starter. 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 harness following the photographic reference. Secure at all P-clip locations. Connect ECU and all sensor/actuator branches. Torque all power terminals to OEM specifications. Verify adequate clearance from exhaust and moving components.
Step 5: Power-Up and Functional Test
Reconnect batteries. Connect Hitachi diagnostic software. Verify no active diagnostic trouble codes. Start engine and verify oil pressure and smooth running. 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. Method optimized based on cargo situation and destination. |
| 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: Will this harness fit my Hitachi ZX200?
A: No. Based on verified OEM data, part numbers 0001044 and 4296401 are for the EX100-2, EX120-2, and EX200-2 excavators. They are not compatible with the ZX series. Please provide your ZX model and serial number so we can identify the correct harness.
Q2: What models is this harness actually for?
A: This harness is for Hitachi EX-series (-2 generation) excavators: EX100-2, EX120-2, and EX200-2 with Isuzu 4BD1 or 6BD1 engines.
Q3: What are the symptoms of a failing 0001044 harness?
A: Symptoms include ECU errors, hard starting, uneven engine running, unexpected shutdowns, and visible damage such as broken wires, corroded connectors, or melted insulation.
Q4: Do you accept trial orders for a single unit?
A: Yes. We welcome trial orders for single units from first-time customers.
Q5: What certifications does COGENG hold?
A: COGENG is an ISO 9001 certified manufacturer.
For pricing, machine-down emergency support, trial orders, bulk quantity discounts, or pre-purchase compatibility verification, contact your COGENG supplier today.
Sales Price: Contact COGENG sales customer service for current competitive pricing.
Shipping Method & Cost: We will quote the optimal shipping solution based on your location and urgency.
Estimated Delivery Time: Based on the selected carrier. Tracking provided within one business day of dispatch.
✅ Verified Fitment — EX100-2, EX120-2, EX200-2 (Not ZX Series).
✅ Cross-Reference — 0001044 / 4296401.
✅ ISO 9001 Certified — 100% Continuity Tested, 500 Pieces Monthly Supply.
✅ Trial Orders Welcome — Single Unit Orders Accepted.
✅ In Stock & Ready to Ship — Minimize Excavator Downtime.
Critical Action: To ensure 100% compatibility, please provide your Hitachi excavator's complete model and serial number, and the engine model (Isuzu 4BD1 or 6BD1). Our technical team will verify your configuration and provide written confirmation before you order.
Merchant Return Policy: All products shipped are not returnable or exchangeable. Please complete all compatibility checks before purchase.
*shipping Details Return Sales*
Sales price:
Please contact COGENG sales customer service for specific prices.
Shipping method:
The specific arrangement will be based on the cargo situation.
Estimated delivery time:
It is based on the shipping time of the logistics company, and the arrival time shown shall prevail.
Contact details are at the bottom.
MerchantReturnPolicy:
The products shipped are not returnable or exchangeable.
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