Doosan D1146 Excavator Engine Assembly For Doosan DH300-7

Doosan D1146 Excavator Engine Assembly For Doosan DH300-7

Specifications

Compatible models

Doosan DH300-7

More other Excavator Engine Assembly  applied to some equipment

Product detail picture:

Installation and Programming Guide:

1.Disconnect battery; clean mounting surfaces; verify OEM fitment.

2. Tighten bolts diagonally to spec; replace all gaskets and seals.

3. Align flywheel to transmission; prime fuel system before start.

4. Idle 10–15 min for break-in; re-torque bolts after 50 hours.

Engine Assembly Daily Maintenance:

1. Check engine oil level and coolant level daily before startup.

 2.Inspect for oil, fuel and coolant leaks around gaskets and joints.

3.Clean air filter regularly; replace filter element if clogged.

4.Check belt tension and wear condition.

5.Change engine oil and oil filter following recommended service hours.

6.Drain water from fuel‑water separator periodically.

7.-Listen for abnormal noise during running; resolve faults timely.

We could supply the following excavator spare parts:

1. Electric parts: sensors, solenoid valve, generator, monitor, controller, wiring harness etc.

2. Engine parts: engine assembly, block assembly, belt, fan blade, turbocharger, fuel injection pump, piston, piston ring, cylinder block, cylinder head, crankshaft, starting motor and alternator etc.

3. Hydraulic parts: hydraulic pump, travel motor, swing motor, main control valve, main valve, hydraulic cylinder, final drive, swing machinery etc.

4. Undercarriage parts: track roller, carrier roller, track link, track shoe, sprocket, idler and idler cushion etc.

5. Cab parts: operator's cab, seat, door, monitor, controller etc.

6. Cooling parts: radiator, air conditioner, compressor, after cooler etc.

7. Other parts: service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

Packing and Shipping:

Paper carton for light-weight spare parts; wooden box for heavy-weight parts. Non-standard customized packing and original packaging are available upon request. By sea, by air, or by express (DHL, TNT, FedEx, UPS, EMS).

Advantage:

1. We supply high‑quality excavator spare parts with favorable pricing for global buyers

2. All items come with a 6-12‑month quality guarantee

3. Every product undergoes strict inspection prior to dispatch

4. Stable production capacity ensures on‑schedule shipment

5. Complete product portfolio covers hydraulic, engine, electric, undercarriage and cooling system parts

6. Accept custom orders based on customer drawings and physical samples

7. Rich industrial background with years of manufacturing and international trade experience

8. Dedicated QC department and responsive sales team, available for 24‑hour consultation

Product Warranty:

1. Warranty Period: The warranty period ranges from 3 to 12 months, subject to the product pricing.

2. Warranty Scope: We offer replacement service for parts confirmed to have manufacturing‑originated quality defects.

3. Warranty Exclusions: Warranty shall become invalid under the following circumstances:

-Wrong order information provided by customers

- Force Majeure

- Improper installation and misuse

- Rust & damage resulted from incorrect storage and inadequate maintenance