Hydraulic Cylinder End Cover Assembly for Nissan/INFINITI ?

This end cover assembly is a critical sealing and protection piece used at the end of a hydraulic cylinder area in the drivetrain/steering system. Its job is to close the cylinder end, keep fluid where it belongs, and shield internal parts from dust, water, and road salt. ✅

Why this part is needed ?

Hydraulic pressure must stay stable to deliver smooth response and safe handling. A tight end cover helps maintain correct pressure and prevents leaks that can drain fluid and damage expensive internals.

How it works ⚙️

The cover mounts at the cylinder end and supports sealing points so the system can build pressure without seepage. It also helps keep alignment true, reducing vibration and uneven wear during operation.

What happens if it’s broken ❌

A cracked or warped cover can cause fluid leaks, pressure loss, and contamination inside the cylinder. You may notice heavy steering feel, whining noises, sluggish response, or wet/oily residue around the assembly. Ignoring it can lead to internal scoring, seal failure, and major system repair.

Compatible Models

• Q45
• Qx70/Fx
• G35
• M45