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Product Details
Product Overview
This high-precision Idler Gear is a critical component for Doosan diesel engines, specifically engineered for the D2366 and DE12 models. As a genuine replacement part (OEM No. 65.04505-5008A), it ensures precise timing synchronization and reduced noise in heavy-duty excavator and industrial engine applications. Our global supply chain delivers this component to major markets including North America, Europe, Southeast Asia, and the Middle East, supporting both OEM service centers and independent workshops.
Key Features & Benefits
Precision Engineering: Manufactured to exact OEM tolerances (±0.02mm) for perfect gear mesh and reduced wear.
Enhanced Durability: Constructed from high-strength alloy steel with induction-hardened teeth for extended service life under high torque loads.
Noise Reduction: Optimized tooth profile design minimizes operational noise and vibration in the engine timing system.
Direct Replacement: Drop-in fit for Doosan D2366 and DE12 engines, eliminating the need for modifications.
Rigorous Testing: 100% inspected for dimensional accuracy, surface hardness, and material composition before shipment.
Technical Specifications
Specification
Details
Part Number
65.04505-5008A
Engine Models
Doosan D2366, DE12
Part Type
Idler Gear (Timing System)
Material
Alloy Steel (20CrMnTi or equivalent)
Hardness
HRC 58-62 (Tooth surface)
Tooth Count
Refer to OEM drawing
Module
Standard engine gear module
Weight
~1.2 kg (varies by batch)
Warranty
12 months
OEM Cross-Reference
Primary OEM: 65.04505-5008A (Doosan / Daewoo)
Alternative OEM: 65.04505-5008 (Superseded version)
Note: Always confirm with your engine serial number for exact compatibility.
Compatibility
Engine Models: Doosan D2366, DE12 (also known as Daewoo DE12)
Applications: Excavators (DH220, DH225, Solar 225), wheel loaders, industrial generators, and marine engines using these models.
Year Range: 1990s–2010s production (verify with engine serial)
Global Supply & Distribution
Worldwide Shipping: DHL, FedEx, UPS, and sea freight (FOB/CIF available).
Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (China, Korea, Indonesia), Middle East (UAE, Saudi Arabia), Africa (South Africa, Nigeria).
Fast Delivery: Stock items shipped within 24-48 hours. Bulk orders to major ports (Rotterdam, Shanghai, Houston) in 7-15 days.
Export Compliance: All parts comply with international trade regulations and are packaged with proper documentation.
Quality Assurance
Manufacturing Standards: ISO 9001:2015 certified production facility.
Testing: 100% dimensional inspection, magnetic particle testing (MPI) for cracks, and hardness testing per ASTM E18.
Warranty: 12-month warranty against manufacturing defects. Extended warranty available for bulk orders.
Traceability: Each gear is laser-marked with batch number for full traceability.
FAQ
Q1: Is this idler gear a direct replacement for the Doosan 65.04505-5008A?
Yes, this part is manufactured to match the OEM specifications of 65.04505-5008A. It is a direct drop-in replacement for Doosan D2366 and DE12 engines. No modifications are required, but we recommend verifying the tooth count and bore size against your original gear.
Q2: What are the signs of a worn idler gear that needs replacement?
Common symptoms include excessive timing gear noise (whining or rattling), visible tooth wear or pitting, metal particles in the engine oil, and potential engine timing drift leading to poor performance or hard starting. If you notice any of these, inspect and replace the idler gear immediately to avoid catastrophic engine damage.
Q3: Do I need to replace any other parts when installing a new idler gear?
Yes, we strongly recommend replacing the idler gear bearing/bushing and the timing gear set (camshaft gear and crankshaft gear) if they show signs of wear. Always use new bolts and gaskets for reassembly. Proper torque specifications (refer to the engine service manual) are critical for correct gear alignment and engine timing.
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