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OEM Exhaust Manifold To Head Gasket 8-97146499-0 8971464990 For ISUZU ELF NPR NKR 700P 4HK1 5.2L Diesel — Multi-Layer Steel 4-Port Design
Product Overview
The Exhaust Manifold to Head Gasket with OEM numbers 8-97146499-0 (also listed as 8971464990, 8-97146-499-0) is a verified OEM-grade direct replacement for ISUZU 4HK1 5.2L diesel engines, commonly found in ISUZU NPR, NKR, NQR, 700P, and XD series commercial trucks.
Manufactured to ISUZU's stringent OEM specifications, this Multi-Layer Steel (MLS) gasket is a critical sealing component between the exhaust manifold and the cylinder head. It is designed to withstand extreme exhaust gas temperatures and pressures, preventing exhaust leaks that can lead to power loss, increased fuel consumption, and hazardous exhaust gas exposure in the engine bay.
Important Cross-Reference Note: Part numbers 8-97146499-0, 8971464990, 8-97146-499-0, 8-97146499-2, 8971464992, and 8-97105866-1 are interchangeable for these applications.
Part Number:8-97146499-0 8971464990
Product Name:Exhaust Manifold To Head Gasket
Car Model:ISUZU ELF NPR NKR 700P 4HK1
Engine Model:ISUZU 4HK1
Condition:100% Brand New
Net Weight:0.161 kg
Key Features & Specifications
OEM Specification – Verified by ISUZU OEM part numbers 8-97146499-0, 8971464990, 8-97146-499-0
Precision 4-Port Multi-Layer Steel Design – 4-port configuration with multi-layer steel construction and reinforced edges
Verified OEM Fitment – Confirmed for ISUZU ELF, NPR, NKR, NQR, 700P, XD models with 4HK1 5.2L, 4HF1 4.3L, 4HG1 4.6L, and 4HE1 4.8L diesel engines
ISO/TS16949 Certified – Manufactured under strict quality control standards
OEM Cross-Reference Verified – Interchangeable with Zevs EXG4990, OOTOKO 8971464990, and other major brands
Failure Symptoms
If your exhaust manifold gasket is failing, you may experience one or more of the following symptoms:
Ticking or Blowing Noise: A ticking or blowing sound from the engine bay, especially on cold start
Exhaust Smell in Engine Bay: Noticeable diesel exhaust odor in the engine compartment or cabin
Loss of Engine Power: Reduced acceleration and turbo boost response
Increased Fuel Consumption: Poor fuel economy due to incorrect exhaust backpressure
Black Soot Marks Near Manifold: Visible black soot deposits around the exhaust manifold flange
Check Engine Light: Possible illumination with codes related to exhaust pressure or air-fuel ratio
Warning: A failing exhaust manifold gasket can lead to progressive power loss, turbocharger damage, and hazardous exhaust gas exposure – prompt replacement is essential.
Vehicle & Engine Compatibility
CRITICAL: This exhaust manifold gasket is designed for ISUZU 4HK1 and compatible 4H-series diesel engines. Verify your engine code and chassis code before ordering.
Brand
Model
Chassis / Series
Engine
Years
ISUZU
ELF
N-Series
4HK1 5.2L
2004-2011
ISUZU
NPR
N-Series
4HK1 5.2L, 4HE1 4.8L
1998-2011
ISUZU
NKR
N-Series
4HK1
2004-2011
ISUZU
NQR
N-Series
4HK1, 4HE1
1998-2011
ISUZU
700P
N-Series
4HK1-T
2004-2011
ISUZU
XD
N-Series
4HK1
2004-2011
Compatible Engine Details
Engine Code
Displacement
Fuel Type
Application
4HK1 / 4HK1-T
5.2L (5,193cc)
Diesel Turbo
NPR, NQR, 700P, XD, ELF
4HF1
4.3L (4,334cc)
Diesel
NPR, NKR
4HG1 / 4HG1-T
4.6L (4,570cc)
Diesel Turbo
NPR, NQR
4HE1
4.8L (4,775cc)
Diesel
NPR, NQR
Features & Benefits
OEM Specification
Guarantees factory-fit quality and performance – verified by ISUZU OEM part numbers
Multi-Layer Steel Construction
Provides excellent compression recovery and prevents exhaust leaks under thermal cycling
Reinforced Edge Design
Prevents gasket blowout and maintains proper exhaust flow under extreme conditions
Precision 4-Port Configuration
Matches the 4HK1 exhaust manifold port layout for a precise, leak-free seal
Withstands Extreme Temperatures
Engineered to handle high thermal loads of turbo-diesel exhaust systems
Direct Bolt-On Fitment
No modifications required – engineered as a direct match for the original gasket
Quality Control & Verification
QC Item
Verification Method
Dimensional Accuracy
Precision inspection to verify 4-port configuration and bolt hole locations
Material Composition
Multi-layer steel analysis to verify layer count and heat resistance
Compression Recovery Test
Dynamic testing to verify gasket maintains sealing force under thermal cycling
Leakage Test
100% pressure testing to guarantee zero exhaust gas leakage
Thermal Cycle Test
500+ hour thermal cycling to verify long-term reliability
Final Assembly Inspection
100% visual and dimensional inspection before packaging
Installation & Maintenance
IMPORTANT: Professional Installation Recommended
Exhaust manifold gasket replacement requires proper tools, correct torque specifications, and adherence to safety procedures.
Pre-Installation Checklist
Allow the engine to cool completely before starting work
CRITICAL: Inspect the exhaust manifold for warpage or cracks – resurface or replace if necessary
Clean both the manifold and cylinder head sealing surfaces thoroughly
Inspect manifold bolts and studs for damage – replace if necessary
Quantity Required: 1 per engine
Installation Guidelines
Ensure the engine is completely cool and disconnect the negative battery terminal
Remove the exhaust manifold from the cylinder head
Remove all old gasket material from both sealing surfaces
Clean surfaces with appropriate solvent
Check the flatness of the manifold surface
CRITICAL: Position the new 4-port gasket correctly on the cylinder head
Install the exhaust manifold and hand-tighten mounting bolts
CRITICAL: Tighten manifold bolts in correct sequence to manufacturer's specified torque settings
Start the engine and check for exhaust leaks
Listen for ticking sounds on cold start and check for exhaust smell
Packaging & Supply
Packaging: Neutral box, color box, or customer brand package
Pack Quantity: 1 PC
Net Weight: Approx. 0.161 kg
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 ...
