Yimi (Guangzhou) Automotive Parts Co, Ltd
| Oil Resistance | Resists swelling, hardening, and degradation |
| Payment Terms | T/T |
| Hardness Test | Meets rubber hardness standard |
| Supply Ability | 10000 pcs/month |
| Operating Temperature | -40°C to +150°C |
| Packaging Details | Neutral Package or as customers’ request |
| Engine Compatibility | 4HK1 5.2L Diesel Engine |
| Material | Durable rubber / ACM (polyacrylate rubber) |
| Seal Type | Static seal |
| Sealing Pressure | 5–7bar |
| Delivery Time | 5-8 Work Days |
| Installation Success Rate | 98.5% direct fitment rate |
| Brand Name | YIMI |
| Place of Origin | CHINA |
| Model Number | NKR NPR 4HK1 |
| Certification | ISO/TS16949 |
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Product Specification
| Oil Resistance | Resists swelling, hardening, and degradation | Payment Terms | T/T |
| Hardness Test | Meets rubber hardness standard | Supply Ability | 10000 pcs/month |
| Operating Temperature | -40°C to +150°C | Packaging Details | Neutral Package or as customers’ request |
| Engine Compatibility | 4HK1 5.2L Diesel Engine | Material | Durable rubber / ACM (polyacrylate rubber) |
| Seal Type | Static seal | Sealing Pressure | 5–7bar |
| Delivery Time | 5-8 Work Days | Installation Success Rate | 98.5% direct fitment rate |
| Brand Name | YIMI | Place of Origin | CHINA |
| Model Number | NKR NPR 4HK1 | Certification | ISO/TS16949 |
| High Light | Durable Rubber Valve Cover Gasket ，High Temperature Engine Gasket ，OEM 8973313590 Head To Cover Gasket | ||
Head To Cover Gasket 8973313590 8-97331359-0 for ISUZU NKR NPR 700P 4HK1 5.2L — OEM Quality
The Head To Cover Gasket (Valve Cover Gasket) with OEM numbers 8973313590 / 8-97331359-0 (associated number 8973313591 / 8-97331359-1) is a verified direct-fit replacement for ISUZU 4HK1 5.2L diesel engines. This gasket is installed between the cylinder head and valve cover, serving as a critical component of the engine's top sealing system, widely used in ISUZU NKR / NPR / NQR / NRR / 700P series trucks.
The Head To Cover Gasket (Valve Cover Gasket) is installed between the cylinder head and valve cover, made from durable rubber or ACM (polyacrylate rubber) materials. Its core function is to create a reliable static seal between the valve cover and cylinder head, preventing high-temperature engine oil from leaking through the valve cover mating surface. Additionally, the gasket prevents external contaminants such as dust and moisture from entering the engine, protecting the valve train components (camshaft, rocker arms, valve springs, etc.) from contamination and ensuring proper lubrication system operation.
| Part Number: | 8973313590 8-97331359-0 |
| Product Name: | Head To Cover Gasket |
| Car Model: | NKR NPR |
| Engine Model: | 4HK1 |
| Condition: | 100% Brand New |
| Origin: | China Mainland |
| Main Market: | Middle East, Asia, Africa, South America, North America & Europe |
| Package: | Neutral Packing Or Make It As Requested |
| Brand | Model | Engine | Years | Notes |
|---|---|---|---|---|
| ISUZU | NKR | 4HK1 5.2L | 2004–2010 | Primary fitment |
| ISUZU | NPR | 4HK1 5.2L | 2004–2010 | Primary fitment |
| ISUZU | NPR-HD | 4HK1 5.2L | 2004–2010 | |
| ISUZU | NQR | 4HK1 5.2L | 2004–2010 | |
| ISUZU | NRR | 4HK1 5.2L | 2004–2010 | |
| ISUZU | 700P | 4HK1-TCS | — | |
| ISUZU | ELF | 4HK1 | — | |
| Chevrolet/GMC | W3500/W4500/W5500 Tiltmaster | 4HK1 5.2L | 2005–2007 |
| Brand | Model | Engine | Notes |
|---|---|---|---|
| HITACHI | ZAX200-3 / ZX200-3 | 4HK1 | |
| HITACHI | ZAX240-3 | 4HK1 | |
| JCB | JCB 220 | 4HK1 | |
| CASE | CX210B / CX230B / CX210C | 4HK1 |
| Feature | Benefit + Verification Signal |
|---|---|
| Durable Rubber / ACM Material | Excellent high-temperature and oil resistance for 4HK1 engine environments — operating range -40°C to +150°C for long-term reliable sealing |
| Precision OEM Dimensions | Perfect match with valve cover and cylinder head — direct OEM replacement, no adjustment needed |
| Superior Oil Resistance | Resists swelling, hardening, and degradation from prolonged hot oil exposure — ensures long seal life, reduces repeat repairs |
| Direct OE Fit Replacement | No modification needed for quick installation — 98.5% direct fitment rate confirmed across 89 repair orders |
| Broad Compatibility | Fits ISUZU NKR/NPR/NQR/NRR/700P trucks and HITACHI, JCB, CASE heavy equipment — one gasket, multiple applications |
| 12-Month Warranty | Peace of mind on manufacturing defects — free replacement within warranty period |
| QC Item | Verification Method | Standard |
|---|---|---|
| Material Composition | Spectrographic/IR analysis | Meets rubber/ACM material standard |
| Dimensional Accuracy | Precision gauge / CMM | Meets OEM installation dimension standards |
| Hardness Test | Hardness tester | Meets rubber hardness standard |
| Oil Resistance Test | Oil immersion test | No swelling, no decomposition within specified time |
| Temperature Test | Thermal chamber | -40°C to +150°C — no deformation, no cracking |
| Visual Inspection | 100% visual inspection | No bubbles, cracks, burrs, or surface defects |
IMPORTANT: The head to cover gasket is a critical component of the engine sealing system. Improper installation may cause oil leaks, potentially leading to engine damage. Installation should be performed by qualified professionals.
| Item | Interval |
|---|---|
| Valve Cover Inspection | Every 20,000 km or 12 months |
| Gasket Inspection | When oil leaks are found or during engine service |
| Gasket Replacement | When leaks, hardening/cracking are found, or must replace whenever valve cover is removed |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2005
Total Annual:
8000000-10000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Yimi (Guangzhou) Automotive Parts Co., Ltd. Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd. Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
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