Parts for your 2017 Nissan Pulsar-Thrust bearing

2017 Nissan Pulsar thrust-bearing: what’s fitted and when it matters

Based on technical sources including the Nissan Pulsar/Sentra (B17) Factory Service Manual (CL – Clutch, MT – Manual Transmission, and CVT – Xtronic sections), the Nissan Electronic Parts Catalogue for B17 models, and clutch release bearing catalogues from major OE suppliers, a thrust-bearing (commonly called the clutch release or throwout bearing) is used on 2017 Nissan Pulsar models with a manual gearbox. Xtronic CVT variants do not use a clutch thrust-bearing, as the CVT employs a torque converter and has no manual clutch release mechanism. The engine itself contains crankshaft thrust bearings, but these are internal components and not part of routine servicing. So, “thrust-bearing” is relevant to 2017 Pulsar manual-transmission vehicles only.

On manual Pulsars, the thrust-bearing sits in the clutch release system, allowing smooth, low-friction contact with the pressure plate fingers when the clutch pedal is pressed. Some versions use a conventional release fork and bearing, others may use a concentric slave cylinder with the bearing integrated. Either way, its job is to keep pedal effort light, engagement consistent and gearbox shifts clean.

There’s no scheduled replacement interval for the thrust-bearing, but it’s smart to replace it whenever the clutch is being renewed, because most of the labour is in removing the gearbox. A noisy or failing bearing often shows up as a whirring, chirping or rumbling sound that changes when the clutch pedal is pressed, a notchier pedal feel, or difficulty selecting gears. If it’s growling with the pedal down, it’s time for attention.

Good practice during clutch work on a 2017 Pulsar manual includes:

• Fitting a complete clutch kit (pressure plate, friction disc, thrust/release bearing, and pilot/spigot bearing if fitted).
• Inspecting the release fork, pivot, guide tube and (if equipped) concentric slave cylinder for wear or leaks.
• Checking flywheel condition and resurfacing or replacing if heat-spotted or cracked.
• Renewing gearbox input shaft seal and the engine rear main seal if there’s any weepage.
• Bleeding the hydraulic clutch circuit with the correct spec brake fluid and confirming free-play and pedal height per the service manual.

Quality parts matter, go with reputable OE or OE-equivalent components and follow torque specs and alignment procedures from the Nissan factory manual. Look after the bearing by avoiding riding the clutch at lights, using neutral when stationary, and keeping the pedal action smooth. For CVT Pulsars, forget thrust-bearings entirely—focus on regular CVT fluid services to factory spec.

Does a 2017 Nissan Pulsar with CVT have a thrust-bearing? No. CVT variants don’t use a clutch thrust-bearing because there’s no manual clutch. The driveline uses a torque converter and a belt-and-pulley system, so there’s nothing for a release bearing to press on. Any unusual driveline noise on a CVT car should be assessed as a transmission or engine issue rather than a clutch bearing problem.

What are the signs of a worn thrust-bearing on a manual Pulsar? Common clues include a whirring or rumbling noise that appears or gets louder when the clutch pedal is pressed, a notchy pedal feel, or intermittent difficulty engaging gears. If the noise is present with the pedal down and fades when released, the release (thrust) bearing is a prime suspect. Address it promptly to avoid collateral clutch damage.

Should the thrust-bearing be replaced whenever the clutch is done? Yes, that’s best practice. Because the gearbox is already out, replacing the thrust-bearing with the clutch kit adds minimal cost and helps ensure a smooth, long-lasting result. It’s also a good time to inspect the release fork, pivot, guide tube and any hydraulic components, plus check seals and the flywheel.