Oil pipe (injection pump to cylinder block) transfers engine oil from the injection pump to the cylinder block, ensuring proper lubriion of injection pump components for Isuzu 4HF1 diesel engines.

• OE Quality: Manufactured to Isuzu dimensional and material specifiions for perfect fit and reliable oil delivery
• Precision Fittings: Ensures leak-free connection between injection pump and cylinder block
• High Pressure Resistance: Withstands engine oil pressure without cracking
• Restores Injection Pump Lubriion: Prevents pump failure due to oil starvation
• Direct Replacement: Simple bolt-on installation - matches OE routing
• Cost-Effective: Affordable alternative to genuine OEM pipes

This oil pipe is specifically designed for Isuzu NPR, NKR, and NPR66 trucks with 4HF1 engine.

• ISUZU NKR (NKR55, NKR57, NKR59, etc.)
• ISUZU NPR (NPR59, NPR66, NPR70, etc.)
• ISUZU NPR66 (medium-duty truck, 4HF1 engine)

• 4-Cylinder, Inline Diesel, Direct Injection
• Displacement: 3.9L (3856cc)

Installation steps (overview):

1. Disconnect battery negative cable
2. Loe the oil pipe between the injection pump and cylinder block
3. Remove the old pipe fittings (place a drain pan to ch oil)
4. Clean the mounting ports on the injection pump and cylinder block
5. Install new sealing washers or O-rings
6. Position the new pipe and hand-tighten fittings
7. Torque fittings to manufacturer specifiion (do not overtighten)
8. Start engine and check for oil leaks
9. Verify injection pump operation and engine performance

• Material Verifiion: Pipe material and fitting composition tested
• Dimensional Inspection: Length, bends, and fitting threads verified
• Pressure Test: Sample pipes tested for oil pressure integrity
• Leak Test: Fittings checked for sealing
• Visual Inspection: 100% checked for defects
• Packaged Safely: Wrapped in plastic, boxed with foam

• 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