5259423 cylinder head
We mainly deals in Dongfeng truck accessories (engine/axle/gearbox/cabin), especially Dana axle accessories and Cummins engine parts (4BT, 6BT, 6CT, 6L, ISBE, ISDE, ISLE,ISF2.8, ISF3.8, NTA855, KTA19,KTA38, KTA50, M11, ISM, etc.) with great advantages
Product Descreiption
1. Basic Specifications
- Part Number: 5259423
- Product Name: Cylinder Head
- Material: Cast iron / high-strength cast aluminum (standard automotive diesel/gasoline engine cylinder head material, varies by matched engine model)
- Structure: Integrated casting with intake ports, exhaust ports, valve seats, valve guide holes, cooling water jackets, lubricating oil passages, spark plug / fuel injector mounting holes, and bolt mounting holes
- Processing Features: Precision machined sealing surface, flatness controlled strictly; valve clearance pre-machined; internal water and oil channels are smoothly cast for efficient fluid circulation
- Application Scope: Matched with specific light commercial vehicle / pickup / industrial diesel engine series (OEM replacement cylinder head)
2. Installation Position
This cylinder head is mounted on the top surface of the engine cylinder block, sealed by a cylinder head gasket between the cylinder head and cylinder block, and fastened tightly with cylinder head bolts in a specified torque sequence.
It forms the upper closed space of the engine combustion chamber together with the cylinder liner, piston and cylinder block.
Related components installed on this cylinder head: intake manifold, exhaust manifold, valve train (camshaft, valves, springs), fuel injectors, spark plugs, thermostat housing, cooling water pipes, and engine valve cover.
3. Core Functions
- Form Combustion Chamber It constitutes the top wall of the engine combustion chamber, cooperates with pistons to complete air intake, compression, power and exhaust four strokes, and bears high temperature and high pressure generated by fuel combustion.
- Air Intake & Exhaust Distribution Built-in intake and exhaust passages guide fresh air/fuel mixture into the cylinder and discharge exhaust gas after combustion.
- Install & Support Valve Train Components Mount intake valves, exhaust valves, camshaft, valve springs and other parts to control the opening and closing timing of intake and exhaust.
- Engine Cooling & Heat Dissipation Internal enclosed water jackets circulate engine coolant to take away massive heat produced by combustion, prevent engine overheating and thermal deformation.
- Lubrication System Channel Carrier Internal oil passages transmit engine oil to lubricate camshaft, valve mechanisms and other moving parts.
- Sealing & Pressure Bearing Cooperates with cylinder head gasket to seal the cylinder, prevent leakage of compressed gas, coolant and lubricating oil, and withstand cyclic combustion pressure stably.
