ГАЙКА Caterpillar 1397976

An Exhaust Manifold Nut holds the exhaust manifold firmly against the engine cylinder head. It keeps the manifold tightly sealed to prevent exhaust gas leaks during operation. Positioned in high-temperature zones, it endures extreme heat, vibration, and pressure changes without loosening. Its secure grip ensures the exhaust gases are directed through the exhaust system efficiently, maintaining engine performance and emission control.Attributes:• Helps reduce exhaust vibration transmission to the cylinder head.• Prevents exhaust sound leaks that increase engine noise.• Withstands continuous exposure to high exhaust temperatures without losing torque.Applications: An Exhaust Manifold Nut is fastened onto exhaust studs to secure the manifold to the cylinder head, ensuring a sealed and stable exhaust joint throughout thermal cycles.