Nissan Note Alternator: Specs, Fitment & Common Faults
On the Note, a genuine, specific fault: a short factory wiring loom can fray at the voltage regulator plug.
Illustration for editorial purposes
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OEM Part Number: 23100-1HZ1A (genuine alternator — confirm via VIN) — aftermarket alternators Hella 8EL 015 659-321 / AS-PL A0168
| Alternators (aftermarket) | Hella 8EL 015 659-321 (150 A, belt pulley, 7 ribs, 55 mm, new); AS-PL A0168(P) (150 A, freewheel pulley, 6 ribs, 55 mm, new, PL_2401 plug); AS-PL A5397S (150 A, freewheel pulley, 6 ribs, 55 mm, new, PL_3308 plug); AS-PL A5653S (100 A, freewheel pulley, 7 ribs, 55 mm, new, PL_3308 plug); Walker WAL00802 (150 A, freewheel pulley, 6 ribs, 55 mm, new, plug 0324, core charge £50.24); Walker WAL00651 (150 A, rigid multi-rib pulley, 7 ribs, 55 mm, new, plug 0172, core charge £50.24); Rotovis 9091765 (150 A, 7-rib pulley, 55 mm, remanufactured, C/S/L plug). |
|---|---|
| Outputs & variants | Most listings are 150 A units on a 55 mm pulley, split between 6-rib freewheel versions (Bosch pattern, OE 0124525082, fitted to the 1.5 dCi diesel) and 7-rib versions (Mitsubishi pattern, OE A3TJ4081ZE, fitted to the 1.2 DIG-S supercharged petrol). A 100 A, 7-rib unit (AS-PL A5653S, OE A5TL0181) serves the 1.2 naturally aspirated petrol. |
| Genuine (OE) numbers quoted | 0124525082 (AS-PL A0168(P)); A5TL0181 (AS-PL A5653S); A3TJ4081ZE (AS-PL A5397S). |
| Fitment notes | Check whether the old alternator has 6 or 7 ribs and confirm the output before ordering, because the diesel and petrol parts share a pulley diameter but not a rib count or plug; Walker and Ridex exchange units carry a core charge refunded on return. |
A Genuine, Specific Root Cause Worth Checking First — Nissan Note Alternator
A documented, specific fault worth checking before assuming the alternator itself has failed: the factory wiring loom connecting to the alternator's voltage regulator plug is relatively short, and over time the wires can rub through and start to fray at this specific connection point, causing exactly the intermittent charging faults and warning lights that get blamed on the alternator itself.
It's also worth knowing that a genuine alternator fault doesn't always trigger the dashboard warning light — one documented case saw persistent, confirmed alternator symptoms over an extended period with the warning light never illuminating even once.
Nissan Note Alternator: Often Blamed on the Battery Instead
On the Nissan Note, a failing alternator and a simply weak battery share almost the same symptom set at first: dim lights, sluggish starts, charge that won't hold. Mixing the two up is common, which is why plenty of people replace the battery only to find themselves back at the garage shortly after.
Nissan Note Alternator: Watch: Replacing It
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Nissan Note Alternator: What It Does
The Nissan Note's electrical systems and battery charging both depend on the alternator generating electricity whenever the engine runs. If it's healthy, the battery's job shrinks down to starting the engine and handling brief surges in demand, not powering everything else on its own.
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Nissan Note Alternator: Warning Signs, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Alternator Guide for symptoms to watch for (plus a genuinely useful two-minute test to confirm it's not the battery instead), confirming the right amperage and fitment against your VIN, and which brands are worth trusting.
More Nissan Alternator
The same part, covered across other Nissan models.