Oil Pan Gasket Engine Gasket with Oil-Resistant Reinforced Rubber Composite for Direct Replacement Fitment and OEM Specification
| OEM Part Number: | 8-97186988-0 / 8971869880 / 897186-9880 | Working Temperature: | -40°C To 150°C |
| Vehicle Models: | ISUZU NPR75 | Thickness: | Standard OEM Specification |
| Material: | Oil-Resistant Reinforced Rubber Composite | Engine Compatibility: | ISUZU 4HK1 |
| Installation Type: | Direct Replacement | Condition: | 100% New — OEM Quality |
| High Light: | Oil-Resistant Reinforced Rubber Composite Oil Pan Gasket,Direct Replacement Fitment Engine Gasket,OEM Specification Sealing Gasket |
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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 lubrication 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 specifications 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.
If your oil pan gasket is failing, you may experience one or more of the following symptoms:
- Visible Oil Leakage: Oil spots or puddles forming under the engine — the most common sign of a degraded oil pan gasket.
- Low Engine Oil Level: Unexplained drop in oil level between service intervals without visible external leaks from other areas.
- Oil Contamination: Dirt and debris entering the oil pan through a compromised seal, leading to contaminated engine oil.
- Burning Oil Smell: Oil dripping onto hot exhaust components, producing a burning odor.
- Engine Overheating: Low oil levels due to leakage can lead to inadequate lubrication and potential overheating.
| Part Number | 8-97186988-0 8971869880 | Product Name | Oil Pan Gasket |
|---|---|---|---|
| Car Model | ISUZU NPR75 | Engine Model | ISUZU 4HK1 |
| Condition | 100% Brand New | Size | Standard |
| Weight | Standard | Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe | ||
| Package | Neutral Packing Or Make It As Requested | ||
| Brand | Model | Series / Chassis | Engine | Application |
|---|---|---|---|---|
| ISUZU | NPR75 | Commercial Truck | 4HK1 | Medium-duty transport |
| ISUZU | NPR | Commercial Truck | 4HK1 | Urban delivery cycles |
| Engine Code | Displacement | Fuel Type | Application |
|---|---|---|---|
| 4HK1 | 5.2L | Diesel Turbo | NPR75, NPR commercial trucks |
- This oil pan gasket is designed for ISUZU 4HK1 engines found in NPR75 series trucks.
- Confirmed compatible with ISUZU NPR75 models.
- Fits commercial transport vehicles, diesel engines, and industrial machinery.
- This gasket helps maintain cleaner engine operation and reduces the chance of lubricant seepage across extended service periods.
- Please verify your vehicle's engine code (4HK1) and model (NPR75) before ordering.
| Feature | Benefit + Verification Signal |
|---|---|
| OEM Specification | Guarantees factory-fit quality and performance — verified by ISUZU OEM part numbers 8-97186988-0 and 8971869880. |
| Oil-Resistant Reinforced Rubber Composite | Provides robust, industrial-grade barrier against oil seepage — verified by material composition testing and -40°C to 150°C temperature rating. |
| Extended Heat Exposure Resistance | Maintains sealing integrity stable during prolonged commercial engine operation — verified by thermal cycle testing under continuous heavy-duty conditions. |
| Thermal Expansion Management | Effectively manages intense thermal expansion and constant chassis vibrations inherent in medium-duty transport and urban delivery cycles — verified by real-world fleet testing. |
| Lubrication Protection Support | Helps reduce oil leakage risk and maintain cleaner engine conditions — verified by OEM-grade sealing performance. |
| Direct Replacement Fitment | No modifications required — verified by 99% installation success rate across commercial vehicle service records. |
| 100% New — No Core Charge | Guarantees zero wear, immediate sealing performance, and full service life — no core deposit required. |
Our manufacturing and inspection processes ensure every oil pan gasket meets or exceeds ISUZU OEM standards.
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify all sealing surface dimensions and bolt hole alignment match OE blueprint specifications. |
| Material Composition | Rubber compound analysis to verify oil resistance and temperature tolerance from -40°C to 150°C. |
| Hardness Testing | Shore hardness testing to verify sealing performance under compression. |
| Thermal Cycle Test | 500+ hour thermal cycling from -40°C to 150°C to verify durability under extreme conditions. |
| Oil Resistance Test | Extended exposure to engine oil to verify material integrity and sealing performance. |
| Final Assembly Inspection | 100% visual and dimensional inspection before packaging. |
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):
- Safely raise the vehicle and support it on jack stands.
- Drain the engine oil and remove the oil filter if necessary.
- Remove the oil pan mounting bolts in the correct sequence (refer to workshop manual).
- Carefully remove the oil pan and old gasket.
- Clean the oil pan and engine block sealing surfaces with appropriate solvent.
- Ensure both surfaces are completely dry and free of oil residue.
- CRITICAL: Position the new gasket correctly on the oil pan or engine block (refer to workshop manual for orientation).
- Install the oil pan and hand-tighten the mounting bolts.
- CRITICAL: Torque the mounting bolts in the correct sequence and to the manufacturer's specified torque settings (refer to ISUZU workshop manual).
- Refill with fresh engine oil to the correct level.
- Start the engine and check for oil leaks.
- 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.
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