Crankshaft-Driven Internal Gear Oil Pump Assembly for ISUZU FVZ34 6HK1 Engine with High-Grade Cast Aluminum Housing

Precision-engineered oil pump assembly delivers consistent engine oil pressure to all moving components, ensuring proper lubrication, cooling, and protection for ISUZU 6HK1 diesel engines.

The Oil Pump Assembly (OEM Numbers: 8-94395564-0 / 8943955640 / 8-94393830-3 / 8943938303) is a premium-quality, direct replacement engine component designed specifically for ISUZU FVZ34 series heavy-duty trucks equipped with the 6HK1 diesel engine.

• OE Quality: Manufactured to strict ISUZU dimensional and performance specifications for perfect fit and function
• Precision Gearing: Internal pump components machined to exacting tolerances for consistent oil flow
• Integrated Pressure Relief Valve: Pre-set to maintain optimal system pressure and prevent over-pressurization
• Durable Housing: High-quality cast aluminum/alloy housing resists wear and corrosion
• Consistent Oil Pressure: Delivers reliable oil flow across the entire engine speed and temperature range
• Heavy-Duty Design: Engineered for the demanding conditions of heavy-duty commercial operation

This oil pump assembly is specifically designed for ISUZU heavy-duty trucks:

• ISUZU FVZ34 - Heavy-Duty Trucks
• ISUZU FVR - Heavy-Duty Trucks (select models)
• ISUZU CXZ - Heavy-Duty Trucks (select models)
• ISUZU CVR - Heavy-Duty Trucks (select models)
• ISUZU GVR - Heavy-Duty Trucks (select models)

Professional mechanic installation required. Proper oil system preparation is critical:

1. Drain engine oil completely before beginning work
2. Remove the oil pan to access the oil pump
3. Disconnect the pickup tube and remove the pump mounting bolts
4. Remove the oil pump drive gear or coupling from the crankshaft
5. Check the drive gear and crankshaft drive for wear; replace as needed
6. Thoroughly clean the engine block mounting surface and surrounding areas
7. Check the oil pickup tube and screen for blockage or damage
8. Install the drive gear onto the new pump if not pre-installed
9. Verify the pump rotates freely and in the correct direction
10. Position the new pump and install mounting bolts
11. Tighten bolts to manufacturer specification
12. Install the oil pickup tube with a new O-ring/gasket
13. Install the oil pan with a new gasket
14. Fill the engine with the correct grade and amount of oil
15. Prime the oil system by cranking the engine (without starting) or using an oil priming tool
16. Start the engine and verify oil pressure is within specification
17. Inspect the oil pan and pump area for any oil leakage

• Material Verification: Confirms housing and internal component materials meet OE specifications
• Dimensional Inspection: All pump clearances, gear profiles, and mounting dimensions verified against OEM tolerances
• Gear Profile Inspection: Pump gear geometry checked for proper meshing and flow characteristics
• Pressure Relief Valve Calibration: Valve opening pressure verified to OE specification
• Flow Rate Testing: Oil flow capacity verified against OEM requirements
• Pressure Testing: Pump output pressure verified at various speeds
• Visual Inspection: 100% checked for casting defects, machining flaws, 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

For pricing, availability, or bulk purchase of the Oil Pump Assembly 8-94395564-0 For ISUZU FVZ34 6HK1 Engine, please contact our sales team for a competitive quote and expert technical support.