A2303AA100 Nissan PULLY-CRANK, Price: 156.89$, Weight: 3.031kg

    • Make Number Name Availability Weight, kg Ship in, Days Price

    Nissan

    A2303AA100

    PULLY-CRANK

    		 0

    3.031

    2-3

    156.89$
    Not Available

    Engine Crank Pulley Replacement Guide

    This rotating pulley sits on the front of the engine crankshaft and drives the accessory belt system. It is needed to transfer crankshaft power to key units like the alternator, A/C compressor, and power steering (if equipped) so your vehicle charges, cools, and steers smoothly .

    How This Pulley Works

    The crankshaft spins, the pulley turns with it, and the belt rides on the grooves to move accessories at the correct speed. Many designs also help reduce vibration, keeping belt tracking stable and lowering stress on bearings and seals.

    Signs It’s Failing

    • Chirping or squealing belt noise
    • Wobble at idle or visible belt misalignment
    • Charging light, weak A/C, or heavy steering
    • Rubber cracking or separation (on damped styles)

    What Happens If You Ignore It

    A damaged pulley can shred the belt, causing sudden loss of charging and cooling, and may lead to overheating or a no-start condition. Severe wobble can harm the crank seal and front engine bearings . Replacing it early helps protect the belt drive and keeps the engine running reliable.