65.01201-0050, 65.01201-0051, 65.01201-0067 Cylinder Liner for Doosan Daewoo DE08, DE12, DB58

Product Overview

The cylinder liner is one of the most critical components in Doosan Daewoo diesel engines. It provides a durable wear surface for piston movement, maintains compression pressure, transfers combustion heat to the cooling system, and extends engine service life. These liner models are widely used in Doosan excavators, wheel loaders, generators, buses, and industrial engines.
RJT PARTS supplies high-quality replacement cylinder liners for Doosan Daewoo engine overhaul and rebuilding applications.

Product Specifications

The DB58 engine uses a 102 mm cylinder bore, while DE12 engines utilize a larger 123 mm bore configuration. D1146/DE08 engines are built around a 111 mm bore design.

65.01201-0050 Cylinder Liner
Application

Suitable for:

• Doosan DE08
• Doosan DE08TI
• Doosan D1146
• Doosan D1146T
• Doosan D1146TI

Commonly installed in:

• DH220 Series
• DH225 Series
• DH300 Series
• Various Doosan industrial engines

OEM Number:

• 65.01201-0050

This liner serves the DE08 and D1146 engine family and is widely used during complete engine rebuilds and major overhauls.

Features

• High-strength alloy cast iron construction
• Precision-machined inner diameter
• Excellent wear resistance
• Superior heat transfer performance
• Long service life under heavy-duty operating conditions

65.01201-0051 Cylinder Liner
Application

Suitable for:

• DE12
• DE12T
• DE12TI
• DE12TIS
• D2366 Engine Family

OEM Number:

• 65.01201-0051
• 65.01201-0051A

This liner is designed for the powerful 11-liter DE12 engine platform used in large excavators, generators, buses, and heavy-duty equipment.

Features

• Heavy-duty cylinder wall design
• High-temperature resistance
• Excellent dimensional stability
• OEM-fit replacement
• Suitable for continuous high-load operation

65.01201-0067 Cylinder Liner
Application

Suitable for:

• DB58
• DB58T
• DB58TI

Common machine applications:

• DH220-5
• DH220-7
• DH225-7
• Various Doosan wheel loaders and industrial engines

OEM Number:

• 65.01201-0067

The DB58 engine is one of the most widely used Doosan power units in medium-sized excavators. The 65.01201-0067 liner is a popular overhaul component in global aftermarket demand.

Features

• 102 mm bore specification
• Boron-alloy cast iron material
• High hardness and wear resistance
• Precision honing finish
• Excellent piston ring compatibility

The DB58 liner is commonly manufactured from boron-alloyed cast iron with hardness ranging approximately from 230–290 HB, providing excellent durability in severe operating environments.

Advantages of RJT PARTS Cylinder Liners
OEM Quality Replacement

RJT PARTS cylinder liners are manufactured according to OEM dimensions, ensuring perfect compatibility with Doosan Daewoo engines.

Advanced Manufacturing Process

• Centrifugal casting
• Precision CNC machining
• Plateau honing technology
• Strict dimensional inspection

Long Service Life

The liners provide:

• Reduced wear
• Improved compression
• Lower oil consumption
• Better engine efficiency
• Extended overhaul intervals

Global Market Supply

RJT PARTS supplies replacement cylinder liners for:

• Excavator repair companies
• Engine rebuild workshops
• Heavy equipment distributors
• Agricultural machinery parts dealers
• Industrial diesel engine service providers

The cylinder liners 65.01201-0050, 65.01201-0051, and 65.01201-0067 are essential overhaul components for the Doosan Daewoo DE08, DE12, and DB58 engine families. Built for durability, heat resistance, and precision performance, these liners help restore engine compression, reduce oil consumption, and extend equipment service life. RJT PARTS offers reliable aftermarket replacement solutions for customers seeking high-quality Doosan engine rebuild parts at competitive prices.

Doosan Cylinder Liner Series