NISSAN 12303-VC200 Crankshaft Pulley

The genuine NISSAN crankshaft pulley (harmonic balancer / vibration damper pulley) with part number 12303-VC200 is a vital component of the engine's crank mechanism. Its function is to effectively dampen torsional vibrations generated along the internal combustion engine's crankshaft, as well as to ensure the reliable drive of auxiliary components (alternator, power steering pump, A/C compressor, water pump) via the serpentine / V-ribbed belt.

Technical specifications and construction:

• Part type: Crankshaft pulley / vibration damper pulley (Harmonic Balancer)
• Installation position: Front of engine block, front crankshaft snout
• Design: Precision metal pulley body with vulcanized rubber-to-metal damping insert to absorb vibrations
• Manufacturer: NISSAN (Genuine OEM part)
• OEM part number: 12303-VC200

Typical signs of failure and wear:

Throughout the service life of the pulley, continuous mechanical stress, thermal cycling, and oil contamination can cause the internal rubber layer to age, degrade, or crack. Common failure symptoms include abnormal squeaking or metallic knocking noises while the engine is running, accelerated or uneven serpentine belt wear, belt misalignment, and increased engine vibration at idle and through the RPM range. Replacing a damaged pulley is critical to protect auxiliary units and the crankshaft.

Vehicle compatibility:

• Nissan Patrol (Y61) 4.8 [2001 - 2012] – Engine code: TB48DE
• Nissan Safari (GCY61) 4.8 [2017 - 2017] – Engine code: TB48DE
• Nissan Safari Pick Up (TY61) 4.8 [2012 - 2012] – Engine code: TB48DE
• Nissan Safari Pick Up (TY61) 4.8 [2011 - 2012] – Engine code: TB48E
• Nissan Safari Pick Up (GCTY61) 4.8 [2017 - 2017] – Engine code: TB48DE