OEM Multi-Layer Steel (MLS) Cylinder Head Gasket 1.10 mm Thickness for ISUZU 4JJ1 NKR NPR with Part Numbers 8-98291685-0 8-97328868-1

The Cylinder Head Gasket with OEM numbers 8-98291685-0 (also listed as 8982916850) and 8-97328868-1 (also listed as 8973288681) is a verified direct-fit replacement for ISUZU 4JJ1 diesel engines, commonly found in NKR and NPR series trucks, as well as D-MAX pickups. Manufactured to Multi-Layer Steel (MLS) OEM specifications with 1.10mm thickness, this critical sealing component withstands extreme combustion pressure and temperatures while maintaining proper compression.

If your cylinder head gasket is failing, you may experience one or more of the following symptoms:

• Engine Overheating: Temperature gauge rising above normal
• Coolant Loss: Unexplained drop in coolant level with no visible external leaks
• White Smoke from Exhaust: Steam-like white smoke indicating coolant entering combustion chamber
• Oil Contamination: Milky or frothy appearance on oil dipstick or filler cap
• Loss of Engine Power: Significant reduction in engine performance due to compression loss
• Bubbling in Radiator: Air bubbles visible in radiator or coolant reservoir

Why Thickness Matters: Using the correct gasket thickness is critical for maintaining the proper engine compression ratio. The "notch" indicator on the gasket corresponds to the factory-specified thickness.

Please confirm with your customer:

• Notch count on the original gasket (1 or 2 notches)
• Original part number from the old gasket
• Engine serial number for precise verification

Primary Applications — Automotive:

Primary Applications — Construction & Industrial:

Pre-Installation Checklist:

• Verify gasket thickness matches the original — confirm notch count (1 or 2 notches)
• Inspect cylinder head and engine block sealing surfaces for warpage or damage
• Clean all sealing surfaces thoroughly — any debris can cause premature gasket failure
• Check cylinder head bolt threads and replace if damaged
• Use new cylinder head bolts if recommended by workshop manual

Installation Guidelines (Reference ISUZU workshop manual):

1. Ensure engine is completely disassembled with cylinder head removed
2. Clean cylinder head and engine block sealing surfaces with appropriate solvent
3. Check flatness of both surfaces using precision straightedge and feeler gauge
4. Position new gasket correctly — ensure notch orientation matches OEM specifications
5. Install cylinder head onto gasket
6. Follow angular tightening method specified in ISUZU workshop manual
7. Torque cylinder head bolts in correct sequence to specified torque values
8. Reassemble remaining engine components
9. Refill with fresh coolant and engine oil
10. Start engine and check for leaks
11. Perform cooling system pressure test to verify seal integrity

• Packaging: Protective packaging to prevent shipping damage
• Packaging Options: Neutral Box / Color Box / Custom Brand Package
• Net Weight: 0.25 kg per piece
• H/S Code: 848410000
• MOQ: Small quantity accepted; quantity discounts available
• Delivery Time: 5-20 days after deposit
• Suitable for: Wholesale distributors, engine rebuild shops, truck repair facilities, construction equipment service centers, and fleet owners