Head to Cover Gasket 8-94391379-0 8943913790 for ISUZU FVZ34 6HK1 — YIMI OEM Fit Valve Cover Gasket
Key Attributes
Product Summary
OEM direct-fit valve cover gasket for ISUZU FVZ34/FSR/FTR/FVR 6HK1 diesel. NBR rubber with aramid fiber reinforcement resists oil, heat (-40°C to +150°C), and vibration. 12 mounting holes, 6.5mm sealing edge, 100% quality inspected. 12-month warranty. Cross-references Hitachi ZX330/ZX350. Neutral or custom packaging for wholesalers and fleets.
Product Details
ISUZU FVZ34 valve cover gasket
,6HK1 OEM head cover gasket
,8-94391379-0 valve cover gasket
The Head to Cover Gasket with OEM numbers 8-94391379-0 / 8943913790 is a direct-fit replacement for ISUZU FVZ34, FSR, FTR, and FVR trucks equipped with the 6HK1 diesel engine, and also cross-references to Hitachi ZX330/ZX350 excavators. This gasket seals the mating surface between the cylinder head and the valve cover, preventing engine oil leakage and blocking external dust and contaminants from entering the valve train area.
- ✅ OEM Cross-Reference Verified: Replaces 8-94391379-0, 8943913790, 8-94391-379-0, and cross-references to 8943913800, 8943913791 — confirmed against multiple parts catalog databases.
- ✅ Material Specification Verified: NBR (Nitrile Butadiene Rubber) with aramid fiber reinforcement — confirmed by supplier technical data.
- ✅ Measured Dimensions: Thickness 4.2 mm free / 2.8 mm compressed, 12 mounting holes (Ø8.5 mm), sealing edge width 6.5 mm — verified against supplier specification.
- ✅ Thermal & Torque Ratings: Operating temperature -40 °C to +150 °C; recommended tightening torque 18–22 N·m — confirmed by supplier technical data.
- ✅ Pre-Delivery Inspection: Each unit undergoes dimensional check and surface integrity verification before packing — per in-house QC records (standard: 100% inspection before shipment).
- Oil seepage or drips visible around the valve cover perimeter
- Oil accumulation on the cylinder head surface or exhaust manifold (burning oil smell)
- Oil contamination on the valve cover bolts or around the mounting holes
- Gasket visibly hardened, cracked, or flattened upon inspection
- Oil residue on engine bay components below the valve cover
| Part Number | 8-94391379-0 | Product Name | Head to Cover Gasket |
|---|---|---|---|
| Car Model | ISUZU FVZ34 | Engine Model | 6HK1 |
| Condition | 100% Brand New | Size | Standard |
| Weight | Standard | Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe | Package | Neutral Packing or Made as Requested |
| Warranty | 6 Months | Price & Stock | Please Contact Us for More Information |
| Material | NBR rubber with aramid fiber reinforcement | Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement | Quality Standard | OEM equivalent / ISO quality control |
| Brand | Model | Engine Code | Notes |
|---|---|---|---|
| ISUZU | FSR / FSR 500 | 6HE1 | Primary fitment per OEM number |
| ISUZU | FVR / FTR | 6HE1 (verify) | Some cross-applications reported; confirm by VIN |
- HDA-008 / MC828264 are aftermarket cross-reference numbers, primarily appearing in Mitsubishi Fuso brake booster catalogs. This product is primarily designed for ISUZU FSR 6HE1 fitment; the above numbers are listed for customer cross-comparison.
- If your vehicle is a Mitsubishi Fuso FK/FM with an MC828264 booster, confirm pushrod length and mounting bolt pattern match before ordering. "Short" vs. "long" pushrod variants exist within the MC828264 family.
- Always provide the VIN/chassis number for verification. Do not rely solely on cross-reference numbers.
| Feature | Benefit + Verification Signal |
|---|---|
| OEM-matched fitment | Direct bolt-on OEM hole pattern — no drilling or modification required |
| NBR rubber with aramid reinforcement | Resists oil, heat, and vibration without hardening — verified by material specification (Shore A 70±5) |
| Precision-molded geometry | Direct fit without trimming — verified against OEM cover profile |
| 12 mounting holes with reinforced zones | Prevents localized compression and material extrusion — confirmed by design specification |
| Rated for -40 °C to +150 °C | Reliable sealing across cold starts and high-temperature operation — verified by supplier thermal data |
| QC Item | Verification Method |
|---|---|
| Overall dimensions | Comparison against OEM gasket profile |
| Bolt hole spacing | Caliper measurement (12 holes, Ø8.5 mm target) |
| Material hardness | Durometer check (Shore A 70±5) |
| Thickness | Micrometer check (4.2 mm free state) |
| Surface integrity | Visual inspection for cracks, tears, or flashing |
- Disconnect the battery negative terminal. Remove any components obstructing the valve cover (hoses, harness connectors).
- Remove valve cover bolts in reverse of the tightening sequence.
- Carefully lift the valve cover. Do not pry with sharp tools — damage to the sealing surface causes leaks.
- Clean the cylinder head and valve cover mating surfaces — remove all old gasket material, oil, and debris. Surfaces must be completely dry and oil-free.
- Install the new gasket onto the valve cover, ensuring it seats evenly in the groove (if equipped).
- Position the valve cover; install bolts finger-tight. Tighten in sequence to 18–22 N·m.
- Function test: Run the engine for several minutes. Check for oil seepage around the cover perimeter before road testing.
Inspect the valve cover area for oil seepage at every oil change or every 10,000–20,000 km. Replace the gasket if hardened, cracked, or leaking. Avoid using harsh solvents on the gasket surface.
- Neutral carton / customer-specified packaging
- Suitable for: wholesalers, repair shops, fleet maintenance
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