A cylinder liner, also known as a cylinder sleeve, is an important component in a diesel engine's cylinder assembly. It forms the working surface along which the piston and piston rings move during the combustion cycle.
During engine operation, the liner is exposed to continuous friction, combustion heat, and mechanical loads. Its bore accuracy and surface condition directly influence piston ring contact, oil retention, and engine sealing performance.
For Isuzu diesel engine maintenance and overhaul projects, selecting the correct cylinder liner requires more than matching the nominal bore diameter. Engine model, liner dimensions, installation structure, and original equipment specifications must all be considered.
SEHY offers replacement cylinder liners for various Isuzu engine models, with customized machining and dimensional requirements available for different applications.
General Specifications | |
|---|---|
Product Name | High Performance Cast Iron Isuzu Diesel Cylinder Liner |
Material | Premium Gray Cast Iron / Boron-containing Alloy Cast Iron |
Manufacturing Process | Centrifugal Casting, CNC Machining |
Surface Treatment | Precision Cross-hatch Honed, Hardened & Heat-Treated, Anti-Corrosion Coating |
Engine Compatibility | Isuzu C190, C240, 4JB1, 4JG2, 4HK1, 6SD1, 6WG1, etc. |
Inner Diameter (mm) | 86.0 - 105.0 (Customizable to OEM specs) |
Outer Diameter (mm) | 88.0 - 107.0 (Customizable to OEM specs) |
Total Length (mm) | 156.0 - 204.0 (Customizable to OEM specs) |
Certifications | ISO 9001, TS16949, CE, RoHS |
Quality Testing | Material Testing, Dimensional Inspection, Surface Hardness Testing, Leak & Pressure Testing |
Applications | Light/Medium-Duty Trucks, Excavators, Marine Engines, Agricultural Machinery, Generators |
Warranty | 12 Months |
Packaging | Neutral Package, Fumigation-Free Wooden Box, or Customized |
Technical Parameters (Isuzu Engine Models) - All could be customized by clients' requirement | |||||
|---|---|---|---|---|---|
Item No. | Engine Model | OE Number | Inner Diameter (mm) | Outer Diameter (mm) | Total Length (mm) |
C190 | 4 Cylinder | 8-97176-659-0 | 86.0 | 88.0 | 163.0 |
C240 | 4 Cylinder | 8-97176-896-0 | 86.0 | 88.0 | 178.0 |
C223 | 4 Cylinder | 8-97176-675-0 | 88.0 | 90.0 | 163.0 |
4JC1 | 4 Cylinder | 8-97915-325-0 | 88.0 | 90.0 | 156.0 |
4JA1 | 4 Cylinder | 8-97176-691-0 | 93.0 | 95.0 | 156.0 |
4JB1 | 4 Cylinder | 8-97176-683-0 | 93.0 | 95.0 | 181.0 |
4JG1/4JG2/4JH1 | 4 Cylinder | 8-97176-699-0 / 8-94456-791-0 | 95.4 | 97.0 | 178.0 |
4BC1/4BC2 | 4 Cylinder | 8-97176-707-1 | 102.0 | 105.0 | 187.0 |
4BD1/4BB1/6BD1/6BB1 | 4/6 Cylinder | 1-11261-240-0 | 102.0 | 105.0 | 204.0 |
4BE1 | 4 Cylinder | 8-97176-715-0 | 105.0 | 107.0 | 187.0 |
4BGI/4BF1/6BGI/6 | 6 Cylinder | 1-11261-248-0 | 105.0 | 107.0 | 203.0 |
The cylinder liner is manufactured from gray cast iron or suitable alloy cast iron according to the required specifications. Material composition and metallurgical properties are important for withstanding repeated piston-ring contact and the thermal conditions inside diesel engines.
The inner and outer diameters, overall length, and other critical dimensions are controlled according to the corresponding engine specifications. Accurate machining helps ensure proper installation and compatibility with the engine block and piston assembly.
The inner running surface features a precision honing finish. Its cross-hatch pattern helps retain lubricating oil, supporting piston ring lubrication and reducing the risk of excessive friction and cylinder wall scuffing.
Different Isuzu diesel engines require different liner dimensions and configurations. SEHY provides cylinder liners for selected models, including C190, C240, C223, 4JA1, 4JB1, 4JG1, 4JG2, and other engine series.
For customers with specific engine repair or replacement requirements, cylinder liners can be manufactured according to technical drawings or physical samples. Dimensions, material specifications, and machining requirements can be discussed before production.
Cylinder liner performance depends on both the selected material and the manufacturing process. For cast iron diesel engine liners, centrifugal casting is commonly used to produce a relatively uniform material structure, followed by machining and finishing operations.
SEHY's cylinder liner manufacturing process includes:
Material Selection: Select gray cast iron or alloy cast iron according to the required mechanical and wear properties.
Centrifugal Casting: Form the cylinder liner blank according to the specified dimensions and casting requirements.
Rough Machining: Process the inner bore, outer diameter, and overall length to the required dimensions.
Precision Machining: Control critical dimensions and installation interfaces according to engine specifications.
Honing: Finish the inner running surface to achieve the required surface texture and lubrication characteristics.
Quality Inspection: Check key dimensions, surface condition, and other agreed quality requirements before delivery.
SEHY Isuzu cylinder liners are intended for diesel engine maintenance, replacement, and rebuilding projects across different industries.
Commercial Vehicles: Replacement cylinder liners for compatible Isuzu diesel engines used in trucks and other commercial vehicles.
Construction Machinery: Engine repair components for excavators and engineering equipment powered by Isuzu diesel engines.
Agricultural Machinery: Cylinder liner replacements for compatible diesel-powered tractors and agricultural equipment.
Industrial Engines: Replacement components for industrial diesel engines and generator applications using supported Isuzu engine models.
Engine Rebuilding Workshops: Cylinder liners for restoring worn or damaged cylinder assemblies during engine overhaul and maintenance.
Different Isuzu engine models and production versions may have different cylinder liner dimensions, installation structures, and OE reference numbers. Correct identification is essential to avoid installation and compatibility problems.
SEHY supports customized cylinder liner manufacturing for distributors, importers, and engine parts suppliers. Whether you need replacement liners for an existing engine model or custom components based on an engineering drawing, our team can evaluate your requirements and provide a suitable manufacturing solution.
To help us confirm the correct cylinder liner, please provide:
Isuzu engine model and version
OEM part number or existing product sample
Required bore diameter, outer diameter, and overall length
Dry or wet liner configuration
Material grade and surface finish requirements
Required quantity and packaging specifications
Contact SEHY for cylinder liner specifications, OEM customization, and quotation support.
A cylinder liner provides the working surface for piston and piston ring movement inside the engine block. It helps maintain cylinder sealing, supports lubrication, and transfers heat from the cylinder assembly.
Gray cast iron and alloy cast iron are commonly used in diesel engine cylinder liner manufacturing. The appropriate material depends on the engine design, operating conditions, and required wear properties.
Honing creates a controlled surface texture, usually with a cross-hatch pattern, on the inner bore. This texture helps retain lubricating oil and supports proper contact between the piston rings and cylinder wall.
You should confirm the engine model, engine version, OEM reference number, bore diameter, outer diameter, overall length, and liner configuration. Comparing these details with the original component or technical drawing helps avoid fitment problems.
Yes. SEHY supports customized cylinder liner production based on customer drawings or physical samples. Material, dimensions, machining requirements, and surface finish can be discussed according to the application.
A dry cylinder liner is installed in close contact with the engine block and does not directly contact the coolant. A wet cylinder liner has an outer surface directly exposed to engine coolant and generally requires sealing arrangements to prevent coolant leakage. The correct type depends on the original engine design.
