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
| OEM Part Numbers: | 8-97146499-0 / 8971464990 / 8-97146-499-0 | Part Name: | GASKET; EXH MANIF TO HD / Exhaust Manifold To Head Gasket |
| Port Design: | 4-Port | Material: | Multi-Layer Steel (MLS) With Reinforced Edges |
| Net Weight: | Approx. 0.161 Kg | Engine Compatibility: | ISUZU 4HK1, 4HK1-T, 4HF1, 4HG1, 4HE1, 4HV1 |
| Vehicle Compatibility: | ISUZU ELF, NPR, NKR, NQR, 700P, XD, NPR75, NQR90, FSR90 | Production Years: | 1998–2011 |
| Certification: | ISO/TS16949 | Condition: | Brand New — 100% Quality Inspected |
| Warranty: | 12 Months | ||
| High Light: | Isuzu 4HK1 exhaust manifold gasket,multi-layer steel exhaust gasket,Isuzu ELF NPR diesel gasket |
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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.
- 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
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
| 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 |
| 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 |
| 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 |
Exhaust manifold gasket replacement requires proper tools, correct torque specifications, and adherence to safety procedures.
- 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
- 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: 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
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