231515X21B Nissan PULLEY-ALTERNATOR, Price: 235.88$, Weight: 0.46kg


Marque Numéro Nom Disponibilité Poids, kg Ship in, Days Prix

Nissan

231515X21B

PULLEY-ALTERNATOR

0

0.46

 Dispatch 24h

235.88$

Indisponible

Originals

Marque Numéro Nom Disponibilité Poids, kg Traitement, jours Prix  
Nissan
231515X21B 
PULLEY-ALTERNATOR
35
0.46
2-3
185.30$
 

Substitutions

Marque Numéro Nom Disponibilité Poids, kg Traitement, jours Prix  
Nissan
231515X21A 
PULLEY ASSY
0
0.46
-
145.65$
Indisponible

Compatibilité

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Alternator Drive Pulley — Reliable Charging, Smooth Belt Motion ⚡

This precision alternator pulley keeps your serpentine belt gripping and your charging system stable. Built to OE standards, it transfers crankshaft power to the alternator, maintaining correct rotor speed for steady voltage, bright lights, and a healthy battery.

Why this part is needed

Over time, heat, dirt, and belt load wear the pulley bearing and grooves. A fresh pulley restores quiet operation, protects the alternator, and prevents belt slip. It’s a smart replacement whenever you hear belt squeal or during alternator service.

How it works

The grooved wheel guides the serpentine belt and may use an overrunning design to absorb torsional pulses from the engine. This reduces vibration, improves belt life, and keeps voltage output consistent at all RPMs.

What happens if it fails

Squeaking or rattling, flickering lights, battery warning lamp, hot alternator, and rapid belt wear. In severe cases the battery discharges and the engine can stall, leaving you stranded.

Tech notes

Match groove profile, inspect belt and tensioner, and torque to spec. Use thread-safe procedures and align the belt carefully for silent, long-lasting performance.

  • QX70
  • FX