Description
4JJ1X 8980748440 Diesel Engine Assembly Overview
The 4JJ1X 8980748440 Engine assembly manufactured by Tatan is an advanced 2.999-liter inline 4-cylinder 16-valve DOHC high-pressure common rail (HPCR) industrial diesel powerplant belonging to our Diesel Engine Assembly classification. Engineered specifically for Hitachi ZX120-3, ZX130K-3, and ZX135US-3 12-to-13 ton crawler excavators, replacing your failed or seized engine core with a Tatan complete turnkey assembly stops common-rail cranking delays, restores 69 kW (93 HP) rated output at 2000 RPM, and cures excessive crankcase blow-by across demanding earthmoving and civil engineering applications.
Coupled directly to the machine’s main hydraulic pump and governing the main control valve assembly, this complete diesel engine incorporates an induction-hardened forged steel crankshaft, a crossflow 16-valve cylinder head, an electronic HPCR fuel injection pump, an upgraded plate oil cooler pack, and a wastegated turbocharger, ensuring 100% direct bolt-on installation with flywheel housings and chassis mounts.
Key Attributes & Technical Parameters for 4JJ1X 8980748440 Engine
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Valve Model | Isuzu 4JJ1 / AJ-4JJ1X Common Rail Diesel | Brand Name | Tatan |
| Compatible Equipment | Hitachi ZX120-3 | ZX130K-3 | ZX135US-3 | OEM Part Number | 8980748440 / 8-98074844-0 / 4654523 |
| Matched Engine Series | Isuzu 4JJ1 Series (4-Cylinder HPCR) | Place of Origin | Guangdong, China |
| Max Relief Pressure | 69 kW (93 HP) @ 2000 RPM Rated | Pilot Control Pressure | 2.999 Liters (95.4mm × 104.9mm) |
| Spool Precision Spec | Plateau-Honed Dry Liners < 0.003 mm Tolerance | Quality Status | 100% Brand New Turnkey Assembly |
| Machinery Test Report | Provided (100% Dyno Bench Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Hydraulic Fluid Spec | 15W-40 Heavy-Duty Diesel Engine Oil | Packaging | Export Wooden Box Packaging |
Heavy Equipment Engineering & Power Unit Lineup
Tatan supplies factory-built turnkey diesel engines, electronic common rail fuel injection components, water pumps, and internal overhaul parts for earthmoving fleets globally:
Supported Excavator Machinery Brands & Global Coverage
In addition to Hitachi crawler excavators, Tatan manufactures and supplies replacement complete diesel engines, short blocks, and overhaul parts across major equipment brands:
Application Scenarios & Buyer Value
When replacing your 12-ton excavator power unit with our 4JJ1X 8980748440 Engine, workshop mechanics and fleet managers secure direct operational benefits:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Hitachi ZX120-3 Engine Repowering | 1:1 direct bolt-on installation eliminates common rail starting delays and restores full 69 kW power for continuous 0.52 m³ bucket rock trenching. |
| Heavy Equipment Repair Workshops | Avoids the complex labor of block re-boring and electronic fuel timing; installs as a pre-tested turnkey unit with matching sensors. |
| Quarry & Civil Earthmoving Fleets | Heavy-duty forged pistons and multi-layer steel head gaskets withstand continuous hydraulic breaker hammer operations. |
| Machinery Parts Stockists | High-demand 3.0L 4-cylinder common rail engine inventory packaged in solid export wooden crates ready for immediate global dispatch. |
4JJ1X 8980748440 Engine OEM Diagnostic & Troubleshooting Guide
Use this technical guide to troubleshoot Isuzu 4JJ1X common rail diesel engine symptoms on your Hitachi ZX120-3 excavator:
| Engine Fault Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Long cranking & hot-start stalls (rail pressure < 35 MPa) | Common rail injector internal control valve seat erosion allowing excessive fuel back-leakage, preventing pressure buildup during cranking. | Replace with Tatan 8980748440 complete engine fitted with brand-new calibrated high-pressure pump and 4 precision common rail injectors. |
| 2. Severe engine bogging & black smoke under load | EGR valve carbon binding sticking open or wastegated turbocharger actuator diaphragm rupture dropping boost pressure below 175 kPa. | Install Tatan turnkey complete engine; verify boost pressure sensor signals and flush intercooler connecting ducting. |
| 3. Heavy crankcase blow-by mist from breather tube | 95.4mm cylinder wall micro-scoring or stuck keystone compression rings allowing high-pressure combustion blow-by into the oil pan. | Install Tatan new 4JJ1X turnkey engine; flush radiator cooling fins and install fresh dual-element air filters. |
| 4. Engine oil milky & coolant level dropping | Plate-type oil cooler core internal element fatigue from continuous thermal shock, allowing pressurized engine oil to cross into the cooling system. | Install Tatan brand-new engine assembly with factory pressure-tested heavy-duty plate oil cooler and new thermostat pack. |
Transport Packaging & Certified Quality Assurance
Every Tatan diesel engine undergoes internal anti-corrosion fogging, heat-sealed plastic wrap, and solid timber export crating:
✈️ Express Air Courier
Partnered with DHL, FedEx, and UPS for 3-7 day priority delivery worldwide.
🚢 Sea Cargo Freight
LCL and FCL container ocean freight for bulk equipment parts replenishment.
📦 Export Wooden Crates
Solid fumigated timber cases lined with thick shockproof foam to prevent transit damage.
4JJ1X 8980748440 Engine FAQ & Related Categories
🔗 Frequently Purchased Together with ZX120-3 Engine:
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
Reviews
There are no reviews yet.