Parts for your 2003 Nissan Navara-Thrust bearing

2003 Nissan Navara Thrust-Bearing

Based on manufacturer service literature, a thrust-bearing is relevant to the 2003 Nissan Navara (D22) when referring to the clutch release bearing used on manual-transmission models. Nissan’s D22 Workshop Manual (CL – Clutch section) details the clutch release/thrust bearing and its inspection and replacement as part of the clutch assembly. The Engine Mechanical section also specifies crankshaft main bearing thrust faces controlling end-float. Automatic-transmission Navaras don’t use a clutch release (thrust) bearing, though the engine still has crankshaft thrust bearings. Sources: Nissan Navara D22 Series Workshop Manual (circa 2002–2004): CL – Clutch, EM – Engine Mechanical, and Nissan Parts/EPC references for D22 manual-transmission release bearings.

For a 2003 Navara with a manual ’box, the thrust-bearing (often called the clutch release or throwout bearing) sits on the gearbox input shaft sleeve and presses on the clutch pressure plate diaphragm when the driver dips the pedal. Its job is to convert the fork’s lateral push into a smooth, low-friction, axial load so the clutch can disengage cleanly. When it’s healthy, gear changes are buttery and quiet. When it’s on the way out, there’ll be a chirp, squeal, or growl that changes as the pedal is pressed.

Best practice is to replace the thrust-bearing whenever the clutch is out—typically with a complete clutch kit. It’s a relatively cheap part compared with the labour to pull the gearbox on a Navara ute. During servicing:

• Listen for noise that appears when pressing the clutch and disappears when released—classic thrust-bearing chatter.
• Check clutch pedal free play and hydraulic operation (master/slave), a dragging or notchy feel can hasten bearing wear.
• Inspect the clutch fork, pivot ball, and input shaft sleeve (guide tube) for wear or scoring, replace or dress as needed.
• Do not grease a sealed release bearing, only apply a light, correct-spec grease to the fork pivot/contact points and the bearing carrier where specified in the FSM.

Replacement pointers:

• Use an alignment tool, torque fasteners to FSM specs, and bleed the hydraulics thoroughly.
• Consider renewing the pilot bush/bearing and rear main seal if there’s any sign of seepage—cheap insurance.
• Avoid riding the clutch and holding on hills with the pedal, that constant pressure heats and shortens bearing life.

There’s no fixed replacement interval—many last 150,000–250,000 km—but any noise tied to clutch pedal movement is a solid cue to book it in. A quiet, smooth take‑up after the job is the telltale it’s been done right.

FAQs

Does an automatic 2003 Navara have a thrust-bearing?
Automatic models don’t have a clutch release (thrust) bearing because they use a torque converter, not a manual clutch. The engine still uses crankshaft thrust bearings to control end-float, but that’s a different internal engine component, not a service item during clutch work.

What are the signs the thrust-bearing is failing on a 2003 Navara?
Common signs include a squeal, chirp, or rumbling noise that changes when the clutch pedal is pressed. It may be quiet at idle with the pedal up, then gets noisy as the pedal is part-pressed. A rough, notchy pedal feel or difficulty selecting gears can also point to a tired bearing or related clutch parts.

Should the thrust-bearing be greased during installation?
The bearing itself is sealed and shouldn’t be opened or packed with grease. Only lightly grease the contact points specified in the workshop manual—typically the fork pivot, fork-to-bearing carrier pads, and the carrier sliding surfaces—using the correct high-temperature lubricant.