Honda Jazz Alternator: Specs, Fitment & Common Faults
On the Jazz, a real money-saving story: a new alternator and belt didn't fix a whine — a known tensioner pulley was the actual cause.
Illustration for editorial purposes
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OEM Part Number: 31100-PWA-004 (genuine alternator — confirm via VIN) — aftermarket alternators Bosch 0 986 086 650 / Hella 8EL 012 429-591
| Alternators (aftermarket) | Bosch 0 986 086 650 (105 A, rigid multi-rib pulley, 6 ribs, 57.5 mm, reman exchange, plug 205 with B+ M6, double pivot mounting, 175 mm long, excludes vacuum pump, core charge GBP 23.30); Bosch 0 986 080 570 (80 A, rigid multi-rib pulley, 5 ribs, 65 mm, reman exchange, PL65 plug with IG/C/FR/L, excludes vacuum pump, core charge GBP 48.77); Hella 8EL 012 429-591 (80 A, V-ribbed pulley, 5 ribs, 65 mm, new); Hella 8EL 011 713-611 (95 A, V-ribbed pulley, 5 ribs, 62 mm, new); AS-PL A5646S (105 A, freewheel clutch pulley, 6 ribs, 57 mm, new, PL_1300 plug); AS-PL A5500S (105 A, rigid belt pulley, 6 ribs, 57 mm, new, PL_1000 plug); AS-PL A5523S (150 A, freewheel clutch pulley, 6 ribs, 52 mm, new, PL_2305 plug); Rotovis 9091427 (105 A, V-ribbed pulley, 6 ribs, 57 mm, reman, COM plug). |
|---|---|
| Outputs & variants | The 80 A, 90 A and 95 A five-rib units on 62 to 65 mm pulleys are the earlier GE-generation fitment carried over for some markets, and a 150 A six-rib 52 mm unit covers the 1.5 hybrid. |
| Genuine (OE) numbers quoted | AS-PL A5523S quotes A2TZ0081ZD; AS-PL A5646S quotes A5TZ0081A; AS-PL A5500S quotes A5TZ0391. |
| Fitment notes | Count the ribs on the old pulley, six ribs for the GK-type 105 A unit against five ribs for the older 80 to 95 A type, and confirm whether it is a freewheel clutch pulley; Bosch, Walker, Autoelectro and Stardax exchange units carry refundable core charges from GBP 22 to GBP 60; both Bosch units exclude engines with an alternator-driven vacuum pump. |
A Genuinely Valuable, Real Money-Saving Story Worth Knowing — Honda Jazz Alternator
If you've already replaced the alternator and the drive belt but a whine persists, this is genuinely worth knowing before assuming the new alternator is faulty: one documented case on a related Honda model saw exactly this happen, with the actual cause eventually identified as the auxiliary belt tensioner pulley — a known failure point separate from the alternator itself. The pulley alone was sourced cheaply and fitted, resolving the whine completely.
It's also worth knowing that alternator whine is sometimes confused with a genuinely different noise from a poor electrical connection heard through the audio system — if the whine changes pitch only when the stereo is on, this points toward a grounding issue entirely separate from the alternator.
Honda Jazz Alternator: Often Blamed on the Battery Instead
On the Honda Jazz, it's genuinely hard to tell a weak battery from a failing alternator just from symptoms — both produce dim lights, slow starts, and a battery that won't hold charge. That's exactly why so many people end up replacing the wrong part, then returning to the garage a few weeks later.
Honda Jazz Alternator: Watch: Replacing It
Honda Fit = Jazz GK; UK-badged Jazz video TxuDV8ulxyE has gen unstated
Honda Jazz Alternator: What It Does
Running the Honda Jazz's electrical systems and keeping the battery charged while the engine turns over — that's the alternator's role. A properly functioning one means the battery only really needs to worry about starting the car and absorbing occasional spikes in demand.
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Honda Jazz 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 Honda Alternator
The same part, covered across other Honda models.