Injection Pump To Cylinder Block Oil Pipe 8-97093547-0 8970935470 For ISUZU NPR66 4HF1 Engine

The Injection Pump To Cylinder Block Oil Pipe (OEM Numbers: 8-97093547-0 / 8970935470) is a premium-quality, direct replacement engine oil line designed specifically for ISUZU NPR66 series medium-duty trucks equipped with 4HF1 diesel engines. This precision-engineered oil pipe connects the engine cylinder block oil gallery to the fuel injection pump, delivering a steady supply of pressurized engine oil to lubricate and cool the injection pump internals.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function
• Precision-Formed Tubing: Accurate bends and mounting points match original pipe configuration for direct replacement
• Durable Steel Construction: High-quality steel resists corrosion, vibration, and oil pressure fatigue
• Ensures Proper Injection Pump Lubrication: Delivers correct oil flow to the injection pump for reliable operation
• Prevents Pump Overheating: Proper oil circulation reduces thermal stress on injection pump components
• Leak-Proof Design: Precision-formed ends and correct fittings ensure a secure, leak-free seal
• Direct Replacement: Simple bolt-on installation - matches original pipe routing and connections
• Long Service Life: Engineered for heavy-duty commercial diesel engine applications
• Essential for Engine Overhaul: Critical component to inspect and replace during injection pump or engine service
• Cost-Effective Repair: Affordable replacement that prevents costly injection pump damage

This oil pipe is specifically designed for ISUZU medium-duty trucks and commercial vehicles. Common applications include:

• ISUZU NPR66 (Medium-Duty Trucks)
• ISUZU 4HF1 Engine Specifications:
  • 4-Cylinder, Inline Diesel
  • Displacement: 4.3L
  • Valvetrain: OHV
  • Application: Medium-duty trucks and commercial vehicles

Also compatible with various ISUZU models using the 4HF1 engine with the same oil pipe configuration

1. Ensure engine is cool - Allow the engine to cool completely before working
2. Disconnect battery - Always disconnect the negative terminal before working
3. Drain engine oil - Drain oil to prevent spills during component removal
4. Locate the oil pipe - Identify the injection pump to cylinder block oil pipe
5. Disconnect fittings - Carefully disconnect the pipe fittings from the cylinder block and injection pump; use proper flare nut wrenches
6. Remove the old pipe - Carefully remove the old oil pipe; note the routing for reinstallation
7. Clean connections - Clean all mating surfaces and fitting threads; remove old sealant or debris
8. Install the new pipe - Position the new oil pipe in the correct routing; connect fittings by hand
9. Torque fittings - Tighten all connections to manufacturer torque specifications
10. Check pipe clearance - Ensure the pipe does not contact moving parts or sharp edges
11. Refill with engine oil - Fill with the correct grade and quantity of engine oil
12. Start and check - Start the engine; check for oil pressure warning light and inspect for leaks at all connections
13. Road test - Test drive to verify proper engine operation and no oil leaks

• Material Verification: Confirms steel tubing quality meets ISUZU strength and corrosion resistance specifications
• Dimensional Inspection: Pipe routing, bend angles, and fitting locations verified against OE specifications
• Pressure Testing: Sample tested to ensure integrity under operating oil pressure
• Visual Inspection: 100% checked for cracks, kinks, corrosion, or manufacturing defects
• Packaged Safely: Protected and 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