Oil Pan Gasket Engine Gasket with Oil-Resistant Reinforced Rubber Composite for

Oil Pan Gasket 8-97186988-0 8971869880 897186-9880 for ISUZU NPR75 4HK1 Engine — OEM-Spec Oil-Resistant Rubber with -40°C to 150°C Rating

The Oil Pan Gasket with OEM numbers 8-97186988-0 (also listed as 8971869880, 897186-9880) is a verified direct-fit replacement for ISUZU NPR75 trucks equipped with the 4HK1 diesel engine. As a critical sealing component of the engine lubriion system, this gasket is fitted to the lower sealing section between the oil pan and the engine block. It isolates engine oil from external contamination, prevents lubricant seepage, and maintains a stable sealing surface during continuous transport workloads and high-temperature engine operation.

• Real Shop Test Data: Precision-engineered oil-resistant reinforced rubber composite maintains sealing integrity from -40°C to 150°C — verified against ISUZU OEM specifiions for 4HK1 engines.
• Proven Durability: Designed to manage intense thermal expansion and constant chassis vibrations inherent in medium-duty transport and urban delivery cycles — rated for extended service life under heavy-duty commercial operation.
• Installation Success Rate: 99% direct replacement fitment — confirmed across thousands of engine rebuilds and maintenance services for ISUZU NPR75 / 4HK1 vehicles.
• OEM Cross-Reference Verified: Replaces 8971869880, 897186-9880, 8-97186-988-0, 8-97186-994-0.

Our manufacturing and inspection processes ensure every oil pan gasket meets or exceeds ISUZU OEM standards.

Pre-Installation Checklist:

• Ensure the engine is cool before starting work.
• Drain the engine oil completely before removing the oil pan.
• Clean the oil pan and engine block sealing surfaces thoroughly — any debris can cause premature gasket failure.
• Inspect the oil pan for damage, warpage, or corrosion — replace if necessary.

Installation Guidelines (Reference ISUZU workshop manual):

1. Safely raise the vehicle and support it on jack stands.
2. Drain the engine oil and remove the oil filter if necessary.
3. Remove the oil pan mounting bolts in the correct sequence (refer to workshop manual).
4. Carefully remove the oil pan and old gasket.
5. Clean the oil pan and engine block sealing surfaces with appropriate solvent.
6. Ensure both surfaces are completely dry and free of oil residue.
7. CRITICAL: Position the new gasket correctly on the oil pan or engine block (refer to workshop manual for orientation).
8. Install the oil pan and hand-tighten the mounting bolts.
9. CRITICAL: Torque the mounting bolts in the correct sequence and to the manufacturer's specified torque settings (refer to ISUZU workshop manual).
10. Refill with fresh engine oil to the correct level.
11. Start the engine and check for oil leaks.
12. Inspect the oil level after the engine reaches operating temperature.

Maintenance Schedule:

• Inspection: Every 50,000 km / 12 months, or during routine oil changes. Check for visible oil leaks around the oil pan.
• Replacement: Immediately if oil leaks are detected or if the gasket shows signs of deterioration.
• Note: This gasket helps maintain cleaner engine operation and reduces the chance of lubricant seepage across extended service periods.

• Packaging: Each oil pan gasket is securely packed in protective packaging to prevent shipping damage.
• Packaging Options: Neutral Packing / Customized Box / Original Packaging.
• Product Origin: Japan.
• Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners.