OEM-grade precise fit for Isuzu 4JB1/TFR55, zero assembly error Oil/heat/vibration resistant, adaptive to mining/construction harsh conditions High-density airtight seal, fully prevent cylinder head cover oil leakage Durable anti-aging material, longer service life than generic aftermarket gaskets Mass bulk stock available, global fast shipping for wholesale urgent replenishment Cut equipment downtime and rework costs, boost procurement profit and operation efficiency