Gasket; HD To Cover 8-97331359-0 8973313590 For ISUZU NKR/NPR/NQR 4HK1 5.2L Diesel — OEM Cylinder Head Cover Seal
Price:
Negotiable
MOQ:
20 pcs
Delivery Time:
5-8 Work Days
Brand:
YIMI
Product Description
Gasket; HD To Cover 8-97331359-0 8973313590 For ISUZU NKR/NPR/NQR 4HK1 5.2L Diesel — OEM Cylinder Head Cover Seal
Product Overview
The Valve Cover Gasket (GASKET; HD TO COVER) with OEM numbers 8-97331359-0 and 8973313590 is a verified OEM-grade direct replacement for ISUZU 4HK1 diesel engines. This critical sealing component provides a leak-proof seal between the valve cover and cylinder head, preventing engine oil leakage and protecting the valvetrain from contamination.
Important Supersession Note: Part numbers 8-97331359-0 and 8973313590 are interchangeable with 8-97331359-1 and 8973313591. Always verify your vehicle's specific requirements before ordering.
Part Number
8-97331359-0 8973313590
Product Name
Gasket; HD To Cover
Car Model
ISUZU NKR/NPR/NQR
Engine Model
ISUZU 4HK1
Condition
100% Brand New
Origin
China Mainland
Failure Symptoms
If your valve cover gasket is failing, you may experience one or more of the following symptoms:
- Engine Oil Leakage: Oil spots or puddles forming under the vehicle
- Burning Oil Smell: Oil dripping onto hot exhaust components
- Low Engine Oil Level: Unexplained drop in oil level between service intervals
- Oil Residue on Engine Block: Visible oil stains around the valve cover area
- Engine Misfire or Rough Running: Oil contamination of sensors causing rough operation
A failing valve cover gasket can lead to progressive oil loss, engine damage, and potential breakdown — prompt replacement is essential.
Vehicle & Engine Compatibility
Primary Applications — ISUZU Trucks
| Brand | Model | Chassis / Series | Engine | Years |
|---|---|---|---|---|
| ISUZU | NKR | N-Series | 4HK1 5.2L | 2004-2010 |
| ISUZU | NPR | N-Series | 4HK1 5.2L | 2004-2010 |
| ISUZU | NQR | N-Series | 4HK1 5.2L | 2004-2010 |
| ISUZU | NRR | N-Series | 4HK1 5.2L | 2004-2010 |
| ISUZU | NPR-HD | N-Series | 4HK1 5.2L | 2004-2010 |
| ISUZU | 700P | N-Series | 4HK1, 4HK1-TCS | - |
Primary Applications — Construction Equipment
| Brand | Equipment Type | Models | Engine |
|---|---|---|---|
| Hitachi | Crawler Excavators | ZX200-3 | 4HK1 |
Important Compatibility Notes:
- Designed for ISUZU 4HK1 5.2L diesel engines only
- Compatible with ISUZU NKR, NPR, NQR, NRR, NPR-HD, 700P trucks from 2004-2010
- Also fits Hitachi ZX200-3 excavators with 4HK1 engines
- Part numbers 8-97331359-0 and 8-97331359-1 are interchangeable
- Verify your vehicle's chassis code, production year, and engine code before ordering
Features & Benefits
| Feature | Benefit + Verification Signal |
|---|---|
| OEM Specification — ISUZU Genuine Equivalent | Guarantees factory-fit quality and performance — verified by OEM part numbers |
| High-Quality Oil-Resistant Rubber Construction | Delivers durable, leak-proof seal that withstands high temperatures and vibration |
| Precision-Molded Design | Ensures perfect fitment on the cylinder head — verified by OEM dimensional specifications |
| Prevents Engine Oil Leakage | Seals the connection between valve cover and cylinder head, protecting engine core |
| Ideal for Top-End Service | Designed for replacing aged, hardened, cracked, or leaking rubber sealing parts |
| Direct Replacement Fitment | No modifications required — engineered as direct match for original gasket |
| Broad Compatibility | Fits ISUZU trucks and construction equipment — verified by OEM cross-reference |
| 1-Year Warranty | Backed by 12-month manufacturer warranty for added peace of mind |
| 100% New — No Core Charge | Guarantees zero wear, immediate sealing performance, and full service life |
Quality Control & Verification
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify all sealing surface dimensions match OE blueprint specifications |
| Material Composition | Oil-resistant rubber compound analysis to verify heat resistance and durability |
| Hardness Testing | Shore hardness testing to verify sealing performance under compression |
| Oil Resistance Test | Extended exposure to high-temperature engine oil to verify material integrity |
| Durability Cycle Test | 500+ hour thermal cycling to verify long-term reliability under heavy-duty operation |
| Final Assembly Inspection | 100% visual and dimensional inspection before packaging |
Installation & Maintenance Recommendations
IMPORTANT: Professional Installation Recommended
Pre-Installation Checklist
- Allow the engine to cool completely before starting work
- Disconnect the negative battery terminal
- Clean the area around the valve cover to prevent contamination
- CRITICAL: Verify your engine is a 4HK1 — this gasket is specifically designed for this engine
- Inspect the valve cover for cracks or warpage — replace if necessary
Installation Guidelines
- Disconnect the negative battery terminal
- Remove the engine cover and any components blocking access to the valve cover
- Remove the valve cover mounting bolts in the correct sequence
- Carefully remove the valve cover and old gasket
- Clean the valve cover and cylinder head sealing surfaces thoroughly with appropriate solvent
- Ensure both surfaces are completely dry and free of oil residue
- CRITICAL: Position the new gasket correctly on the valve cover or cylinder head
- Install the valve cover and hand-tighten the mounting bolts
- CRITICAL: Torque the mounting bolts in the correct sequence to the manufacturer's specified torque settings
- Reconnect the negative battery terminal
- Start the engine and check for oil leaks around the gasket area
- Check the oil level after the engine reaches operating temperature
Maintenance Schedule
- Inspection: Every 50,000 km / 12 months, or during routine oil changes
- Replacement: Immediately if oil leaks are detected or if the gasket shows signs of deterioration
- Note: Typically replaced during valve clearance adjustments or valvetrain service
Packaging & Supply
- Packaging: Each valve cover gasket is securely packed in protective packaging
- Packaging Options: Neutral Box / Custom Brand Package
- MOQ: Small quantity accepted; quantity discounts available
- Main Market: Middle East, Asia, South America, Southeast Asia
- Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, construction equipment service centers, and fleet owners
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Yimi (Guangzhou) Automotive Parts Co, Ltd
Location
Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
Contact Person
James