NISSAN 30678-01J0B Clutch Slave Cylinder Hexagon Bolt

The genuine NISSAN 30678-01J0B (alternative part number: 3067801J00) is a premium-quality, high-strength hexagon bolt specifically engineered for the secure and stable mounting of the clutch slave cylinder. This fastener plays a critical role in maintaining the structural integrity of the clutch operating system, ensuring that the slave cylinder does not shift or deflect under hydraulic pressure.

Technical Features and Specifications:

• Manufacturer: NISSAN (Genuine OEM part)
• OEM Part Number: 30678-01J0B
• Alternative / OEM Reference Number: 3067801J00
• Part Type: Hexagon bolt
• Application: Fastening the clutch slave cylinder to the transmission housing or mounting bracket
• Material Quality: High-tensile, hardened steel resistant to continuous mechanical stress and vibration
• Surface Treatment: Specialized anti-corrosion coating for protection against environmental factors, moisture, and road salts

Role and Importance in the Vehicle:

During the operation of the clutch slave cylinder, significant hydraulic force is generated every time the clutch pedal is depressed. The mounting bolt is designed to counteract this force and hold the cylinder in an exact, fixed position. If the bolt fails to provide adequate clamping force, the cylinder may move, leading to altered clutch pedal free play, incomplete clutch disengagement, or strain and leakage in hydraulic fluid lines.

Common Symptoms of Failure or Wear:

• Thread stretching or damage: Frequently the result of incorrect tightening torque (overtightening).
• Corrosion and seizing: In areas exposed to moisture, bolts with compromised protective coatings can rust, causing disassembly difficulties or breakage.
• Physical deformation or fracture: Material fatigue or extreme mechanical stress can cause bolt head shearing or shank breakage.
• Loosening: Engine vibration can cause an improperly torqued bolt to back out, resulting in erratic clutch operation.

Installation Recommendation: When replacing or servicing the clutch slave cylinder, it is always recommended to replace the mounting fasteners with new genuine parts and torque them to the exact manufacturer specifications.