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Cylinder Head Cover Gasket 8-97105690-3 8971056903 For ISUZU NPR66 XD 4HF1 4.3L Diesel — OEM 15-Hole Rocker Arm Cover Seal 0.114kg
Product Overview
The Valve Cover Gasket (Gasket; HD to Cover) with OEM number 8-97105690-3 (also listed as 8971056903) is a verified OEM-grade direct replacement for ISUZU NPR66 XD trucks equipped with the 4HF1 4.3L diesel engine. Also 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.
Key Specifications:
OEM Specification — Verified by ISUZU OEM part numbers 8-97105690-3 and 8971056903
Precision 15-Hole Design — Engineered specifically for the 4HF1 engine's 15-bolt valve cover pattern
Proven Durability — Manufactured from high-quality, oil-resistant materials to withstand high temperatures and continuous vibration
Weight Verified — 0.114 kg
HS Code Verified — H/S Code: 848410000
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 or wetness around the valve cover area
Engine Misfire or Rough Running — Oil contamination of sensors causing rough operation
⚠️ Important: A failing valve cover gasket can lead to progressive oil loss, engine damage, and potential breakdown — prompt replacement is essential to maintain engine lubrication integrity.
Technical Specifications
Part Number
8-97105690-3, 8971056903
Product Name
Cylinder Head Cover Gasket
Car Model
ISUZU NPR66 XD
Engine Model
ISUZU 4HF1
Condition
100% Brand New
Weight
0.114 kg
Origin
China Mainland
Main Market
Middle East, Asia, Africa, South America, North America & Europe
Vehicle & Engine Compatibility
Brand
Model
Chassis / Series
Engine
Notes
ISUZU
NPR66
XD
4HF1 4.3L Diesel
15-hole valve cover pattern
⚠️ Important: This gasket is specifically designed for the ISUZU NPR66 XD model with the 4HF1 4.3L diesel engine. The 15-hole design is critical for correct fitment — verify your valve cover bolt count before ordering.
Features & Benefits
OEM Specification
Guarantees factory-fit quality and performance — verified by OEM part numbers
Precision 15-Hole Design
Matches the 15-bolt valve cover pattern of the 4HF1 engine for perfect seal
High-Quality Material
Oil-resistant material withstands high temperatures and engine vibration
Lightweight Construction
Easy to handle and install — 0.114 kg verified weight
Prevents Oil Leakage
Seals valve cover to cylinder head, protecting engine from contamination
Direct Fitment
No modifications required — engineered as direct match for original
Quality Control & Verification
QC Item
Verification Method
Dimensional Accuracy
Precision inspection to verify 15-hole pattern matches OE specifications
Material Composition
Oil-resistant material analysis for 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 for material integrity
Durability Cycle Test
500+ hour thermal cycling for long-term reliability
Final Assembly Inspection
100% visual and dimensional inspection before packaging
Installation & Maintenance
⚠️ IMPORTANT: Professional Installation Recommended
Pre-Installation Checklist:
Allow engine to cool completely before starting work
Disconnect negative battery terminal
Clean area around valve cover to prevent contamination
CRITICAL: Verify valve cover has 15 bolt holes
Inspect valve cover for cracks or warpage
Installation Guidelines:
Disconnect negative battery terminal
Remove engine cover and blocking components
Remove 15 valve cover mounting bolts in correct sequence
Carefully remove valve cover and old gasket
Clean sealing surfaces thoroughly with appropriate solvent
Ensure surfaces are dry and free of oil residue
CRITICAL: Position new gasket correctly
Install valve cover and hand-tighten mounting bolts
CRITICAL: Torque bolts in correct sequence to manufacturer specifications
Reconnect negative battery terminal
Start engine and check for oil leaks
Check oil level after 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 gasket shows deterioration
Typically replaced during valve clearance adjustments or valvetrain service
Packaging & Supply
Packaging: Protective packaging to prevent shipping damage
Net Weight: 0.114 kg
H/S Code: 848410000
Fig. No. - Key No.: 010-069
Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners
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 ...
