Yimi (Guangzhou) Automotive Parts Co, Ltd
| Payment Terms | T/T |
| Part Name | GASKET; HD TO COVER / Valve Cover Gasket / Cylinder Head Cover Gasket |
| Engine Compatibility | ISUZU 4JJ1, 4JJ1-T, 4JJ1 E5/E6 |
| Bolt Holes | 15 Holes |
| Material | High-Quality OEM Specification |
| Delivery Time | 5-8 Work Days |
| Vehicle Models | ISUZU NPR, NKR, NLR85, NMR85, ELF |
| Fitting Position | Between Valve Cover and Cylinder Head |
| Certifiion | ISO/TS16949 |
| Supply Ability | 10000 pcs/month |
| OEM Part Number | 8-98181200-0 / 8981812000 |
| Condition | Brand New — 100% quality inspected |
| Packaging Details | Neutral Package or as customers’ request |
| Warranty | 12 Months |
| Model Number | ISUZU NPR/NKR/NLR85/NMR85 4JJ1 3.0L Diesel |
| Place of Origin | China |
| Brand Name | YIMI |
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Product Specification
| Payment Terms | T/T | Part Name | GASKET; HD TO COVER / Valve Cover Gasket / Cylinder Head Cover Gasket |
| Engine Compatibility | ISUZU 4JJ1, 4JJ1-T, 4JJ1 E5/E6 | Bolt Holes | 15 Holes |
| Material | High-Quality OEM Specification | Delivery Time | 5-8 Work Days |
| Vehicle Models | ISUZU NPR, NKR, NLR85, NMR85, ELF | Fitting Position | Between Valve Cover and Cylinder Head |
| Certifiion | ISO/TS16949 | Supply Ability | 10000 pcs/month |
| OEM Part Number | 8-98181200-0 / 8981812000 | Condition | Brand New — 100% quality inspected |
| Packaging Details | Neutral Package or as customers’ request | Warranty | 12 Months |
| Model Number | ISUZU NPR/NKR/NLR85/NMR85 4JJ1 3.0L Diesel | Place of Origin | China |
| Brand Name | YIMI | ||
| High Light | ISUZU NPR cylinder head cover gasket ，4JJ1 3.0L diesel engine gasket ，OEM 15-hole cylinder head seal | ||
The Valve Cover Gasket (GASKET; HD TO COVER) with OEM number 8-98181200-0 (also listed as 8981812000) is a verified OEM-grade direct replacement for ISUZU 4JJ1 diesel engines. Commonly known as a rocker cover gasket or cylinder head cover gasket, this component provides a critical seal between the valve cover and the cylinder head, preventing engine oil leakage and protecting the valvetrain from contamination.
The 4JJ1 is a 3.0L turbo-diesel engine renowned for its durability in commercial trucks, including the ISUZU NPR, NKR, NLR85, NMR85, and ELF series. This gasket is an essential component for maintaining the integrity and performance of the engine, designed to withstand the high temperatures and continuous vibration of commercial vehicle operation. This gasket features a 15-hole design for precise fitment on the 4JJ1 cylinder head.
If your valve cover gasket is failing, you may experience one or more of the following symptoms:
A failing valve cover gasket can lead to progressive oil loss, a dirty engine, and potential engine damage — prompt replacement is essential.
| Part Number | 8-98181200-0 8981812000 |
|---|---|
| Product Name | Cylinder Head Cover Gasket |
| Car Model | ISUZU NPR/NKR/NLR85/NMR85 |
| Engine Model | ISUZU 4JJ1 |
| Condition | 100% Brand New |
| Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe |
CRITICAL: This gasket is specifically designed for ISUZU 4JJ1 engines with a 15-hole valve cover pattern.
| Brand | Model | Chassis / Series | Engine | Notes |
|---|---|---|---|---|
| ISUZU | NPR | N-Series | 4JJ1 3.0L Diesel | Primary application |
| ISUZU | NKR | N-Series | 4JJ1 3.0L Diesel | Compatible |
| ISUZU | NLR85 | N-Series | 4JJ1 3.0L Diesel | Compatible |
| ISUZU | NMR85 | N-Series | 4JJ1 3.0L Diesel | Compatible |
| ISUZU | ELF | N-Series | 4JJ1 3.0L Diesel | Compatible |
| Engine Code | Notes |
|---|---|
| 4JJ1 | Base engine |
| 4JJ1-T | Turbocharged variant |
| 4JJ1 E5 / E6 | Euro 5 / Euro 6 emission compliant variants |
| Feature | Benefit + Verification Signal |
|---|---|
| OEM Specification — ISUZU Genuine Equivalent | Guarantees factory-fit quality and performance — verified by OEM part numbers 8-98181200-0 and 8981812000 |
| Precision 15-Hole Design | Matches the 15-bolt valve cover pattern of the 4JJ1 engine for a perfect seal |
| Single-Use Component | This gasket must be replaced whenever the cylinder head cover is removed |
| Prevents Engine Oil Leakage | Seals the connection between the valve cover and cylinder head, protecting the engine core from contamination |
| Genuine OEM Quality | Manufactured to ISUZU's stringent quality standards — 100% brand new, not aftermarket or refurbished |
| Direct Replacement Fitment | No modifications required — engineered as a direct match for the original gasket |
| 100% New — No Core Charge | Guarantees zero wear, immediate sealing performance, and full service life — no core deposit required |
As an OEM-grade part, each valve cover gasket meets ISUZU's stringent quality standards.
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify 15-hole pattern and sealing surface dimensions match OE blueprint specifications |
| Material Composition | High-quality material 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 |
IMPORTANT: Professional Installation Recommended
(Reference ISUZU workshop manual):
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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