Looking for 4942463 Cummins 6LT head? Premium 24V heads for equipment including Dongfeng Kinland and Liugong CLG856. Solves thermal cracking. Factory direct. Request quote!
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The Cummins 6LT cylinder head (OEM: 4942463) is a reinforced HT250 alloy component for 8.9L 24-valve engines.
It specifically resolves thermal fatigue cracking and fits equipment including Dongfeng Kinland trucks, Liugong CLG856 loaders, and Sany SY365 excavators.
In stock for global wholesale export.
Restore peak performance and ensure unwavering reliability with a high-performance cylinder head for the Cummins 6LT / L-Series engine from Ruich Value. Built to handle the severe stress of heavy-duty trucks, marine propulsion, and power generation sets (gensets), our cylinder heads are the premier choice for demanding applications. Trust in a component that delivers superior longevity and power, keeping your most critical assets online.
High Hardness: Heat-treated at 855°C-865°C for 30-40 minutes and quenched in oil, enhancing durability and extending service life by three times compared to standard cast iron heads.
Low Friction: The finely polished inner surface minimizes friction between piston rings and headwalls, creating a thin lubricant film that further reduces resistance.
Good Sealing: Our designs ensure a tight seal between piston rings and headwalls, preventing charge leakage during compression and exhaust gas escape, thereby improving engine performance.
Effective Heat Transfer: The cylinder heads efficiently transfer heat from the combustion chamber to the coolant, preventing overheating and thermal stress on engine components.
Easy Installation and Replacement: Designed for a perfect fit into the Cummins cylinder block without requiring machining or modification, our cylinder heads are straightforward to install or replace.
| Specification | Value |
|---|---|
| Product Type | Cylinder Head |
| Casting Material | HT250 Premium Alloy Cast Iron |
| Valve Count | 24 Valves (4 per cylinder) |
| Combustion Chamber Type | Direct Injection (8.9L) |
| Surface Finish | Precision Milled (0.05mm tolerance) |
| Pressure Tested | 100% Hydraulic Tested (6.0 Bar) |
| Valve Seat Material | Heat-Resistant High-Nickel Alloy |
| OEM Reference | 4942463 |
| Cross Reference | 5267707, 4936152, 3936152 |
| Typical Applications | Dongfeng Kinland, Liugong CLG856, Sany SY365, Marine Gensets |
| Application Category | Heavy Duty Construction, Logistics & Marine |
We also produce cylinder heads for other related models of Cummins engines, such as:
| Model | Model | Model | Model |
|---|---|---|---|
| NTA855 (Assm) | ISF2.8 | ISX15/QSX15 | 6BTAA |
| K19 (Assm) | ISF3.8 (Assm) | ISLe (Assm) | 6CT/6CT (Assm) |
| 4B/4BT (Assm) | ISDe/QSB/ISB 4.5 | QSL | 6L/6LT (Assm) |
| 6B/6BT (Assm) | ISDe 6.7 / QSB6.7 (Assm) | ISM11 | QSB3.3/B3.3 (Assm) |
| ISB6 E3/E3 (Assm) | QSB 5.9L | ISG | ISL/T375 |
| ISBe 5.9 (Assm) | ISC (Assm) |
A1: Symptom: Fine thermal cracks forming between the valve seats, particularly in the 24-valve 8.9L configuration. Diagnosis: This is primarily caused by localized heat stress in high-output engines (e.g., L375) during heavy-duty construction or marine operation. Solution: Our replacement 4942463 heads use reinforced HT250 material with optimized water jackets to resist thermal stress fractures even under continuous full-load conditions.
A2: Technical Detail: It is essential to use a four-stage torque sequence (Final stage: 180 Nm) and verify cylinder block flatness within 0.05mm. Pro-Tip: Because the 6LT head bolts are high-stress fasteners, reusing stretched bolts can lead to uneven clamping pressure, resulting in premature head gasket blowout in turbocharged 8.9L applications.
A3: Diagnosis: Porosity in standard castings often leads to internal coolant leaks in marine environments. Our Solution: Each 4942463 head undergoes 100% 6.0 Bar hydraulic pressure testing and features high-nickel alloy valve seats. This material chemistry prevents valve recession and internal leakage, ensuring the seal integrity of the 8.9L engine even when running high Exhaust Gas Temperatures (EGT).
Email: [email protected]
Phone/WhatsApp: +86 13889277673
Request Custom Quotes: Available for fleet operators and wholesale buyers. Inquire about FOB/CIF terms and OEM certification documents.
For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business