High-Quality Multi-Layer Steel (MLS) Cylinder Head Gasket with Leak-Proof Design for Direct OEM Replacement in ISUZU 4HK1 Engine

Precision-engineered cylinder head gasket provides a leak-proof seal between the cylinder head and engine block, ensuring optimal compression, preventing fluid mixing, and protecting the engine in ISUZU 4HK1 diesel engines.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function
• Precision Sealing: Engineered sealing beads and combustion ring reinforcements provide superior sealing under extreme conditions
• Multi-Layer Steel Construction: High-temperature and high-pressure resistant for durability and reliability
• Leak-Proof Design: Prevents compression loss, oil leaks, and coolant leaks
• Restores Compression: Ensures proper cylinder sealing for optimal engine performance
• Protects the Engine: Prevents oil/coolant mixing that can cause catastrophic engine damage
• Direct Replacement: Simple installation during engine overhaul or head gasket replacement
• Long Service Life: Engineered to withstand the rigors of heavy-duty commercial operation

This cylinder head gasket is specifically designed for ISUZU vehicles and equipment equipped with the 4HK1 engine.

• ISUZU NPR75 – Medium-Duty Trucks
• ISUZU NPR – Medium-Duty Trucks (various models)
• ISUZU NQR – Medium-Duty Trucks
• ISUZU 700P – Medium-Duty Trucks
• ISUZU FRR – Medium-Duty Trucks

• 4-Cylinder, Inline Diesel
• Displacement: 5.2L (5193cc)
• Turbocharged, Intercooled
• Valvetrain: DOHC (depending on variant)
• Widely used in NPR75, NPR, NQR, and 700P series trucks

Professional installation required. Proper cylinder head assembly is critical for optimal performance and longevity.

1. Allow engine to cool – Ensure the engine is completely cool before beginning work
2. Disconnect battery – Disconnect the negative battery cable before beginning work
3. Drain coolant and oil – Drain the cooling system and engine oil completely
4. Remove the cylinder head – Remove the cylinder head from the engine block
5. Remove the old head gasket – Carefully remove the old gasket from the block and head surfaces
6. Clean sealing surfaces – Thoroughly clean the cylinder head and engine block sealing surfaces, removing all old gasket material
7. Inspect the cylinder head – Check for warpage, cracks, or damage; machine if necessary
8. Inspect the engine block – Check the block surface for warpage, scoring, or damage
9. Check cylinder head bolts – Use new cylinder head bolts (recommended by ISUZU)
10. Prepare the new gasket – Inspect the new gasket and verify it matches the original
11. Position the new gasket – Place the new gasket on the engine block, ensuring correct orientation
12. Install the cylinder head – Position the cylinder head on the gasket
13. Install and torque bolts – Install head bolts and torque in the correct sequence and stages to manufacturer specification
14. Reconnect components – Reconnect all coolant hoses, oil lines, and electrical connections
15. Refill with fresh fluids – Fill with the correct type and grade of coolant and engine oil
16. Reconnect battery – Reconnect the negative battery cable
17. Start the engine – Start the engine and check for leaks
18. Check for leaks – Inspect for oil, coolant, or combustion leaks around the head gasket
19. Re-torque – After the engine has completed a heat cycle, re-torque the head bolts if specified in the service manual

• Material Verification: Confirms MLS material meets OE temperature, pressure, and oil resistance specifications
• Dimensional Inspection: Gasket thickness, bore alignment, and bolt hole positions verified against OEM tolerances
• Sealing Performance Testing: Compression and sealing strength verified under extreme thermal and pressure conditions
• Visual Inspection: 100% checked for defects, imperfections, or damage
• Packaged Safely: Protected and securely packaged to prevent damage during transit

• Neutral export packing or customized packaging available
• Carton or wooden case for safe transportation
• Fast delivery for stock items
• Shipping by Express Air or Sea