As a leading commercial vehicle parts supplier, Hubei Yizhi Power Technology Co., Ltd. provides this technical analysis of the 4376509 Upper Engine Gasket Set. For technicians and fleet managers, choosing a high-quality Cummins ISF3.8 Gasket Kit is the only way to ensure a 100% leak-proof engine rebuild and long-term operational reliability.
1.Complete Parts List: What is in the Cummins ISF3.8 4376509 Kit?
En 4376509 Upper Engine Gasket Set is a comprehensive “top-set” for the Cummins ISF3.8 series diesel engines. It contains over 50 individual sealing components across 21 unique part types, ensuring every seal required for a cylinder head overhaul is included in this single ISF3.8 engine parts solution.
Technical Specification Table (Full Component List)
| Número de pieza | Descripción de la pieza | Required Qty | Remarks / Function |
| 4376509 | Juego de juntas superior del motor | 1 Kit | Master Repair Solution |
| 5345648 | Junta de culata | 1 | Multi-Layer Steel (MLS) Seal |
| 4946239 | Junta de la tapa de válvulas | 1 | Top Cylinder Head Seal |
| 3955393 | Valve Stem Seal | 16 | Intake & Exhaust Valve Control |
| 2830444 | Junta del colector de escape | 4 | Primary Exhaust Seal |
| 5266422 | Junta del colector de escape | 2 | Exhaust Connection Seal |
| 4983020 | Junta del colector de admisión | 1 | Air Intake Efficiency Seal |
| 5303597 | Junta del turbocompresor | 1 | Turbo Mounting & Pressure Seal |
| 5253019 | EGR Valve Gasket | 1 | Emission System Sealing |
| 5264571 | Oil Drain Gasket | 1 | Turbo Oil Return Protection |
| 4940584 | Junta de ojal | 4 | Specialized Component Sealing |
| 4932615 | Junta de conexión | 1 | External Fitting Seal |
| 4995186 | Exhaust Outlet Connection Gasket | 1 | Connection System Gasket |
| 5301826 | Junta tórica | 1 | High-Temp Oil/Coolant Seal |
| 5259924 | Junta tórica | 1 | High-Temp Oil/Coolant Seal |
| 5259563 | Junta tórica | 1 | High-Temp Oil/Coolant Seal |
| 5257072 | Junta tórica | 1 | High-Temp Oil/Coolant Seal |
| 3867646 | Junta tórica | 1 | High-Temp Oil/Coolant Seal |
| 3090126 | Junta tórica | 1 | High-Temp Oil/Coolant Seal |
| 2898295 | Junta tórica | 1 | High-Temp Oil/Coolant Seal |
| 3963990 | Sealing Washer | 5 | Bolt & Fitting Compression Seal |
| 3684342 | Sealing Washer | 9 | Bolt & Fitting Compression Seal |
| 3918187 | Sealing Washer | 1 | Drain Plug/Fitting Washer |
2. Expert Analysis: Why the 4376509 Kit is Critical for Performance
MLS Technology in 5345648 Head Gasket
En 5345648 Head Gasket included in this 4376509 Upper Engine Gasket Set features Multi-Layer Steel (MLS). This is vital for the ISF3.8’s high-pressure combustion cycle, preventing cylinder gases from escaping into the water jacket—the primary cause of engine overheating in vehicles using the Junta Foton Aumark system.
Precision Sealing with 3955393 Valve Stem Seals
En 5345648 Head Gasket included in this 4376509 Upper Engine Gasket Set features Multi-Layer Steel (MLS). This is vital for the ISF3.8’s high-pressure combustion cycle, preventing cylinder gases from escaping into the water jacket—the primary cause of engine overheating in vehicles using the Junta Foton Aumark system.
3. Application & Compatibility Summary
En 4376509 Upper Engine Gasket Set is perfectly suited for high-performance diesel applications, especially where a reliable Junta Foton Aumark or ISF3.8 engine parts are required:
- Commercial Trucking: Foton Aumark, Olins, JAC, and GAZ Valdai.
- Public Transport: Light and medium-duty transit buses.
- Industrial: Diesel generators and Construction Equipment (Excavators/Loaders).
4. ¿Por qué asociarse con Hubei Yizhi Power?
Based in Shiyan, the heart of the Cummins supply chain, Hubei Yizhi Power Technology Co., Ltd. garantiza que cada 4376509 Upper Engine Gasket Set meets strict OEM quality benchmarks.
- Verified Accuracy: Every Cummins ISF3.8 Gasket Kit contains the full range of 50+ seals to prevent assembly delays.
- Stable Supply: Massive inventory for all ISF3.8 engine parts ensures zero lead time for urgent repairs.
- ESN Verification: Provide your Número de serie del motor (ESN) to our team for a 100% fitment guarantee on your 5345648 Head Gasket.
Solicite hoy mismo un presupuesto profesional
Maximize your engine’s service life with a reliable 4376509 Upper Engine Gasket Set. For bulk orders of the Cummins ISF3.8 Gasket Kit, contact us today.
- WhatsApp: +86 186 7197 8898
- Correo electrónico: stevencummins8989@gmail.com
- Official Web: www.yzdlparts.com
