High-strength heat-resistant steel piston cooling nozzle with precision-calibrated spray orifices and anti-leak sealing structure for Mack E6 engines

This premium piston cooling nozzle is a precise OEM replacement engineered exclusively for Mack E6 series trucks, matching dual original part numbers 20706106 and 115GC316. Forged from high-strength heat-resistant steel with precision-calibrated spray orifices, it delivers uniform targeted oil cooling to pistons during high-load engine operation. This efficiently lowers piston operating temperature, prevents overheating, piston scuffing and premature engine wear. Manufactured to strict factory dimensional tolerances for direct bolt-on installation without modification, and equipped with anti-leak sealing structure to resist vibration, high heat and harsh heavy-duty working environments. A reliable aftermarket engine component that stabilizes engine running condition, reduces breakdown risks and greatly extends the overall service life of your Mack E6 engine assembly.

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