Gasket; HD To Cover 8-97331359-0 8973313590 For ISUZU NKR/NPR/NQR 4HK1 5.2L Diesel — OEM Cylinder Head Cover Seal
Basic Properties
Place of Origin:
China
Brand Name:
YIMI
Model Number:
ISUZU NKR/NPR/NQR 4HK1 5.2L Diesel
Trading Properties
Minimum Order Quantity:
20 pcs
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| OEM Part Number: | 8-97331359-0 / 8973313590 | Part Name: | GASKET; HD TO COVER / Valve Cover Gasket / Rocker Cover Gasket |
| Fitting Position: | Between Valve Cover And Cylinder Head | Engine Compatibility: | ISUZU 4HK1, 4HK1-TCS |
| Vehicle Models: | ISUZU NKR, NPR, NQR, NRR, NPR-HD, 700P | Equipment Compatibility: | Hitachi ZX200-3 Excavators |
| Material: | High-Quality Oil-Resistant Rubber | Country of Origin: | China |
| Condition: | Brand New — 100% Quality Inspected | Warranty: | 12 Months |
| High Light: | Isuzu 4HK1 cylinder head gasket,OEM Isuzu NPR diesel engine seal,Isuzu NKR cylinder cover gasket |
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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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