Precision-Ground Corrosion-Resistant Nozzle Holder Sleeve for ISUZU 4HK1 6HK1 Engines Made of High-Grade Steel

Precision-engineered nozzle holder sleeve provides accurate injector positioning and sealing, ensuring reliable fuel injection system performance for ISUZU 4HK1 and 6HK1 diesel engines.

The Nozzle Holder Sleeve / Injector Sleeve (OEM Numbers: 8976023011 / 8-97602301-1) is a premium-quality, direct replacement engine component designed specifically for ISUZU FRR, FSR, FTR, FVR, and EX series trucks equipped with 4HK1 and 6HK1 diesel engines.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifiions for perfect fit and function
• Precision Machining: Exact dimensional control ensures proper injector positioning and sealing
• Durable Construction: High-grade steel withstands extreme temperatures, high pressures, and vibration
• Reliable Sealing: Precision sealing surface prevents combustion gas blow-by and coolant leakage
• Protects Injector Seals: Proper sleeve function extends injector seal and O-ring life
• Restores Fuel System Performance: Eliminates injector misalignment, power loss, and increased fuel consumption
• Protects the Engine: Prevents combustion gas and coolant leakage that can cause severe engine damage
• Direct Replacement: Simple installation during fuel system service
• Long Service Life: Engineered to withstand the rigors of heavy-duty commercial operation
• Essential Component: Critical for fuel system reliability and engine performance

This nozzle holder sleeve is specifically designed for ISUZU medium to heavy-duty trucks. Common appliions include:

• ISUZU FRR - Medium to Heavy-Duty Trucks
• ISUZU FSR - Medium to Heavy-Duty Trucks
• ISUZU FTR - Medium to Heavy-Duty Trucks
• ISUZU FVR - Heavy-Duty Trucks
• ISUZU EX - Heavy-Duty Trucks
• ISUZU FVZ - Heavy-Duty Trucks (select models)
• ISUZU GVR - Heavy-Duty Trucks (select models)

• 4-Cylinder, Inline Diesel
• Displacement: 5.2L (5193cc)
• Turbocharged, Intercooled
• Common Rail Fuel Injection

• 6-Cylinder, Inline Diesel
• Displacement: 7.8L (7790cc)
• Turbocharged, Intercooled
• Common Rail Fuel Injection

Professional installation recommended. Proper fuel system service is critical:

1. Remove the injector - Carefully remove the fuel injector from the cylinder head
2. Remove the old sleeve - Use a proper sleeve removal tool to extract the old sleeve from the cylinder head
3. Clean the mounting bore - Thoroughly clean the cylinder head bore, removing all debris and old seal material
4. Inspect the cylinder head bore - Check for wear, scoring, or damage; repair if necessary
5. Clean the new sleeve - Ensure the new sleeve is clean and free from debris
6. Install the new sleeve - Press or drive the new sleeve into the cylinder head bore to the correct depth
7. Check sleeve position - Verify the sleeve is seated at the correct depth
8. Install new injector seals - Install new seals and O-rings on the injector
9. Install the injector - Install the injector and torque to manufacturer specifiion
10. Check for leaks - Start the engine and inspect the injector area for any fuel, gas, or coolant leakage
11. Verify operation - Check engine performance for smooth idle and proper power delivery

• Material Verifiion: Confirms steel composition meets OE strength and durability specifiions
• Dimensional Inspection: Inner diameter, outer diameter, length, and sealing surface dimensions verified against OEM tolerances
• Surface Finish Inspection: Precision-ground surfaces checked for proper finish and sealing capability
• Hardness Testing: Material hardness verified for wear resistance
• Visual Inspection: 100% checked for 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