ISUZU Cylinder Head Gasket Japan Origin OEM Standard for 6HH1 Diesel Engine
| Net Weight: | 0.95kg | Compatible Engines: | ISUZU 6HH1, 6HH1-N, 6HH1-S |
| Engine Type: | Diesel | Material: | High-strength Aluminum Alloy & Precision Bearings |
| Installation Position: | Between Cylinder Head And Cylinder Block | OEM Part Number: | 8-94393346-3 / 8943933463 |
| Cooling Type: | Engine Coolant Circulation | Displacement: | 8.2L |
| High Light: | Japan Origin Cylinder Head Gasket,OEM Standard GASKET; CYL HD,6HH1 Diesel Engine Sealing Gasket |
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ISUZU Cylinder Head Gasket 8-94393346-3 8943933463 Compatible with FSR FRR 6HH1 Diesel Engine — 0.95kg Japan Origin OEM Standard Replacement
The ISUZU Cylinder Head Gasket with OEM numbers 8-94393346-3 / 8943933463 is a precision-engineered replacement designed for ISUZU FSR and FRR series medium-duty trucks, compatible with 6HH1 diesel engines. This component is a core sealing part of the engine — the Cylinder Head Gasket (GASKET; CYL HD) — responsible for sealing the combustion chamber between the cylinder head and cylinder block.
The cylinder head gasket is one of the most critically stressed sealing components in an engine, installed between the cylinder head and cylinder block. Its working principle includes:
- Combustion Chamber Sealing: Under cylinder head bolt clamping force, the gasket forms a high-pressure seal around each cylinder bore, preventing combustion pressure leakage.
- Fluid Isolation: The gasket simultaneously seals coolant and oil passages between the cylinder head and block, preventing cross-contamination or leakage.
- Thermal Compensation: The gasket's compressibility and resilience compensate for thermal expansion differences between the cylinder head and block during heat cycles.
- Multi-Layer Steel (MLS) Construction: Modern cylinder head gaskets use multi-layer steel construction with special coatings and elastic limiters for sustained sealing pressure.
| Symptom | Probable Cause |
|---|---|
| Abnormal coolant consumption; oil film in coolant or milky oil | Failed gasket; cross-contamination between coolant and oil passages |
| White smoke from exhaust, especially on cold start | Coolant entering combustion chamber through failed gasket |
| Engine overheating; persistently high coolant temperature | Combustion gases entering cooling system through failed seal |
| Reduced compression pressure; power loss | Combustion pressure leakage |
| Severe engine vibration or rough running | Cross-leakage between adjacent cylinders causing uneven operation |
| Brand | Model Series | Chassis | Compatible Engine |
|---|---|---|---|
| ISUZU | FSR | FSR33 | 6HH1 |
| ISUZU | FRR | — | 6HH1 |
| Feature | Benefit + Verification Signal |
|---|---|
| OEM Standard Design | Manufactured to ISUZU original specifications — ensures perfect fitment for 6HH1/FSR/FRR engines; direct OEM replacement, no modification required. |
| Japan Origin Precision Manufacturing | Japanese precision manufacturing for superior dimensional accuracy and sealing performance — 0.95kg net weight, meeting OEM quality standards. |
| High-Quality Heat & Pressure Resistant Material | Excellent heat and pressure resistance for reliable sealing under high-temperature, high-pressure combustion chamber conditions — prevents gas leakage and fluid cross-contamination. |
| 100% Factory Quality Inspection | Every piece undergoes strict quality inspection — 100% tested before delivery. |
| BZLP Brand Professional Supply (20 Years Experience) | Mature production systems and extensive industry experience — over 400 supplier network. |
| At Least 1-Year Warranty | Reliable after-sales protection — at least 1 year quality guarantee. |
- Number Confirmation: This product number is 8-94393346-3 / 8943933463. Reference number H85128-00 also exists. Verify the specific number on the original part before ordering.
- Surface Cleaning: Thoroughly clean both the cylinder head and cylinder block mating surfaces before installation — ensure no old gasket residue, oil, or debris.
- Torque & Sequence: Cylinder head bolts must be torqued to specification in the correct sequence as per the ISUZU workshop manual. Using a non-certified gasket may void your engine warranty.
- Single-Use Only: Cylinder head gaskets are single-use components — must be replaced with new gaskets whenever the cylinder head is removed.
- Professional Installation: The cylinder head gasket is a critical engine sealing component requiring cylinder head removal and precision torque control. Must be performed by a qualified engine repair technician.
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