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Doosan D1146 Engine Overhaul Kit OE 65.03901-0092 for DX420LC/DX480LC Excavator for Doosan Excavator Engine Parts

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Doosan D1146 Engine Overhaul Kit OE 65.03901-0092 for DX420LC/DX480LC Excavator for Doosan Excavator Engine Parts
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Features
Specifications
Compatible Engine Model: Doosan D1146
Engine Model: Doosan D1146
Kit Type: Full Engine Overhaul Rebuild Kit
Core Components: Gaskets + Pistons + Bearings + Valves + Cylinder Liners
Material Standard: OEM-Matched Alloy Steel / Non-Asbestos / Tungsten Carbide
Quality Certification: ISO/TS16949 Certified, 100% Pre-Shipment Inspection
Warranty Period: 6 Months (Normal Operating Conditions)
Application Scope: 20-Ton Class Excavators / Mid-Size Wheel Loaders
Basic Infomation
Place of Origin: CHINA
Brand Name: For Doosan/Daewoo
Certification: ISO 9001
Model Number: D1146
Payment & Shipping Terms
Packaging Details: Inner: Airtight PE bag + desiccant + EPE foam protection, corrugated carton (custom marks available)
Delivery Time: 3-8 days
Payment Terms: T/T,Western Union,D/A
Product Description
Doosan D1146 Engine Overhaul Kit OE 65.03901-0092 for DX420LC/DX480LC Excavator

This Doosan D1146 Excavator Engine Overhaul Kit (Core OE No. 65.03901-0092 / 65.99601-8092) is a professional all-in-one rebuild solution engineered exclusively for Doosan D1146 inline 6-cylinder turbocharged diesel engines — the high-torque power core for 40-50 ton class excavators and large wheel loaders.

Manufactured to Doosan/Develon's strict OEM standards and certified by ISO/TS16949, it integrates all critical components required for full engine overhaul, including premium asbestos-free gaskets, high-strength pistons, durable bearings, and wear-resistant valves.

Designed to excel in extreme operating conditions (temperatures up to 600℃, pressure up to 18MPa), this kit resolves common issues like engine wear, air leakage, oil seepage, and power loss, restoring factory-level performance (220–270kW output) and fuel efficiency.

Product Specifications
Compatible Engine Doosan D1146 Inline 6-Cylinder Turbocharged Diesel Engine
Core OE Numbers 65.03901-0092, 65.99601-8092 (Compatible with 65.03901-0072, 65.99601-8072)
Aftermarket Part No. DOOSAN-D1146-OVERHAUL (Independent Site Exclusive)
Kit Components Full Asbestos-Free Gasket Set, Cylinder Liners, Pistons, Piston Rings, Piston Pins, Circlips, Main Bearings, Connecting Rod Bearings, Thrust Washers, Intake/Exhaust Valves, Valve Guides, Valve Seats
Material Standard Heat-Resistant Non-Asbestos Composite Gaskets, High-Strength Alloy Pistons, Wear-Resistant Bearing Steel, Hardened Alloy Steel Valves
Performance Ratings Gasket Temp Resistance: Up to 600℃; Max Pressure Resistance: 18MPa; Engine Power Output: 220–270kW (295–362hp) @ 1800–2100rpm
Manufacturing Standard ISO/TS16949 Certified, OEM-Matched Tolerances, 100% Pre-Shipment Sealing & Dimensional Testing
Compatible Models Excavators: DX420LC, DX430LC, DX480LC, DX500LC; Wheel Loaders: DL500, DL550, DL600
Net Weight Approx. 38–45kg
Packaging Neutral Industrial Packaging / Custom OEM Packaging (Optional)
Warranty Period 6 Months (Under Normal Operating Conditions)
Installation Recommendation Professional Engine Overhaul Workshop with Torque Calibration & Professional Tooling
Core Features
  • OEM-Matched Precision: All components manufactured to Doosan's original engineering drawings and tolerance standards, ensuring perfect fit with D1146 engines
  • Asbestos-Free Sealing Excellence: Premium non-asbestos gaskets deliver superior oil/gas/water sealing performance, meeting modern environmental regulations
  • All-In-One Rebuild Solution: Includes every critical part required for complete D1146 engine overhaul, reducing procurement costs by 35% and maintenance time by 40%
  • Heavy-Duty Durability: High-strength alloy pistons, fatigue-resistant bearings, and hardened valves engineered to withstand continuous high-load operations
  • Performance Restoration: Effectively fixes engine wear, compression loss, oil leakage, and power reduction, restoring factory-level torque (1100–1400 N·m) and fuel efficiency
  • Quality Guaranteed: 100% pre-shipment inspection ensures compliance with Doosan's rigorous quality standards for heavy-duty engine parts
Applications
  • Doosan/Develon Excavators: DX420LC, DX430LC-9C, DX480LC-9C, DX500LC-9C (40-50 ton class heavy excavators)
  • Doosan/Develon Wheel Loaders: DL500, DL550, DL600 large mid-size wheel loaders
  • Heavy-Duty Working Environments: Mining operations, large-scale earthmoving, road construction, quarrying, and infrastructure projects
  • Engine Overhaul Scenarios: Full engine rebuild, major performance restoration, worn component replacement, and sealing system upgrade for D1146 engines
Why Choose Our Doosan D1146 Overhaul Kit?
  • Genuine OEM Compatibility: Direct replacement for Doosan original parts (OE 65.03901-0092/65.99601-8092), ensuring seamless integration
  • Cost-Effective Solution: All-in-one kit eliminates multiple vendor purchases and reduces logistics costs
  • Proven Reliability: Tested under extreme mining and construction conditions, maintaining long-term sealing integrity and performance
  • Fast Global Shipping: Stable inventory and worldwide delivery network support urgent overhaul needs
  • Technical Support: Professional installation guidance, torque specification charts, and post-sales troubleshooting services
If you're searching for a reliable Doosan D1146 engine overhaul kit, DX420LC excavator rebuild set, OE 65.03901-0092 replacement parts, or Doosan heavy-duty engine components, contact us for detailed catalogs, customized quotes, and bulk order discounts.
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