Looking for 4298234 Cummins ISX15 head? Factory direct supply for equipment including Freightliner Cascadia and Peterbilt 389. Solves thermal cracking. Request a quote!
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The Cummins ISX15 SOHC cylinder head (OEM: 4298234) is a heavy-duty casting engineered for 15L engines.
It specifically resolves thermal cracking issues and fits equipment including Freightliner Cascadia, Kenworth W900, and Peterbilt 389 trucks.
In stock for global wholesale export.
Trusted by fleets worldwide, Ruich Value’s Cummins ISX15 Cylinder Head (OEM# 4298234) combines Stage 3 durability and Inconel valves for mining, long-haul trucks, and industrial engines. Bulk discounts available.
The Cummins ISX15 Cylinder Head is precision-cast from high-grade G3500 alloy, optimized for ISX15/QSX15 engines in Freightliner Cascadia, Peterbilt 579, and Kenworth T680 trucks. Certified for:
| Specification | Value |
|---|---|
| Product Type | Cylinder Head |
| Casting Material | High-Strength Alloyed Gray Iron |
| Valve Count | 24 Valves (SOHC Configuration) |
| Combustion Chamber Type | Direct Injection (15L) |
| Surface Finish | Precision Milled (0.002″ Flatness) |
| Pressure Tested | 100% Hydraulic Tested (90 PSI) |
| Valve Seat Material | Premium High-Nickel Alloy |
| OEM Reference | 4298234 |
| Cross Reference | 4365945, 4365946, 5413491 |
| Typical Applications | Freightliner Cascadia, Kenworth W900, Peterbilt 389, Volvo VNL |
| Application Category | Class 8 Heavy Duty Haulage & Mining |
| Engine Series | Model Numbers | Key Vehicles/Equipment |
|---|---|---|
| Cummins ISX15 | ISX15-G, ISX15-HD | Freightliner Cascadia |
| Cummins QSX15 | QSX15-L, QSX15-Tier 4 | Caterpillar 785 Mining Trucks |
| 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: Rapid coolant loss or bubbles in the expansion tank, often accompanied by misfires. Diagnosis: This is typically caused by thermal stress cracking in the area between the injector sleeve and the valve seats, a known weak point in high-torque 15L operations. Solution: Our replacement 4298234 heads feature reinforced casting in critical areas and upgraded alloy seats to resist crack propagation under extreme heat cycles.
A2: Technical Detail: It is mandatory to follow the six-step torque-plus-angle sequence (Final stage: 90 degrees) and verify block deck flatness. Pro-Tip: Always use new head bolts as ISX15 fasteners are torque-to-yield; reusing old bolts results in insufficient clamping force, which will lead to localized warping and premature head gasket failure.
A3: Diagnosis: The ISX15 operates under extreme peak cylinder pressures, causing standard valve seats to recede or “sink” during long-haul trucking. Our Solution: We utilize induction-hardened high-nickel alloy valve seats and stellite-faced valves. This combination ensures the 4298234 head maintains stable valve lash settings even at high Exhaust Gas Temperatures (EGT), preventing loss of compression and increasing service life.
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