Cylinder Head Cover Gasket 8-97945338-0 8979453380 897945-3380 For ISUZU 4JJ1 D-MAX TFR TFS & NLR85 NMR85 — OEM Valve Cover Seal For 4JJ1/4JK1 Engines

OEM Valve Cover Seal for ISUZU 4JJ1/4JK1 Engines - Compatible with ISUZU D-MAX, TFR, TFS & NLR85 NMR85 models.

• OEM Specification - Verified by multiple OEM part numbers
• Precision Engineered - High-temperature resistant rubber + steel/fiber reinforced composite
• Proven Durability - Working temperature range from -40°C to 150°C
• Installation Success Rate - 99% direct plug-and-play fitment
• Broad Compatibility - Fits ISUZU D-MAX, TFR, TFS, UCS, NLR85, NMR85, NKR, NPR, ELF and Hitachi CX130B excavators

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

• Engine Oil Leakage: Oil spots or puddles forming under the vehicle
• Burning Oil Smell: Oil dripping onto hot exhaust components
• Low Engine Oil Level: Unexplained drop in oil level between service intervals
• Oil Residue on Engine Block: Visible oil stains around valve cover area
• Engine Misfire or Rough Running: Oil contamination of sensors

Installation Guidelines (Reference ISUZU workshop manual):

1. Disconnect negative battery terminal
2. Remove engine cover and blocking components
3. Remove valve cover mounting bolts in correct sequence
4. Carefully remove valve cover and old gasket
5. Clean sealing surfaces thoroughly
6. Ensure surfaces are dry and free of oil residue
7. Position new gasket correctly
8. Install valve cover and hand-tighten bolts
9. Torque mounting bolts to manufacturer's specifications
10. Reconnect negative battery terminal
11. Start engine and check for oil leaks
12. Check oil level after engine reaches operating temperature