Kia Picanto Alternator: Specs, Fitment & Common Faults

On the Picanto, oil leaking from the valve cover gasket directly above the alternator can genuinely kill it.

Illustration for editorial purposes

Opens live listings in a new tab.

OEM Part Number: 37300-03300

Accuracy note: confirmed shared reference across 1.2 petrol i10, i20, and Kia Picanto, since Hyundai and Kia use common engine and electrical components.

1.2 petrol, 70 Amp	Hyundai/Kia OEM: 37300-03300
Higher trims/automatic variants	A genuinely different, typically higher-amperage alternator applies to versions with more standard electrical equipment — confirm the amp rating on your existing unit before ordering

A Genuinely Specific, Real Root Cause Worth Knowing — Kia Picanto Alternator

If your alternator keeps failing repeatedly, this is genuinely worth knowing: a documented cause on related engines is oil leaking down into the alternator from the valve cover gasket positioned directly above it. It's genuinely worth checking the valve cover gasket for signs of a leak before fitting a replacement alternator.

A genuinely money-saving, real diagnostic finding worth knowing: one documented case saw persistent low charging voltage survive two separate alternator replacements, with the actual cause eventually traced to the alternator not receiving a proper ground connection from the engine. Running a separate, dedicated ground wire resolved it completely.

It's also worth knowing a genuinely useful diagnostic technique: placing one end of a wooden stick against the alternator housing and the other end near your ear acts as a simple, improvised stethoscope for isolating alternator noise.

Kia Picanto Alternator: Often Blamed on the Battery Instead

On the Kia Picanto, dim lights, slow starts, a battery that won't hold charge — these symptoms point equally to a weak battery or a failing alternator, and that overlap is why so many replacements target the wrong part first, with the real problem only surfacing weeks later.

Before you buy: alternator output rating varies by engine size and trim, particularly on cars with more onboard electronics. Always confirm against your VIN before ordering.

Kia Picanto Alternator: What It Does

Electricity generation while the Kia Picanto's engine is running is the alternator's job, charging the battery and directly powering the electrical systems. When it's working properly, the battery mostly just handles engine starting and short demand spikes, not day-to-day electrical load.

Find Kia Picanto Alternator Here!

Opens live listings in a new tab.

Kia Picanto 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 Kia Alternator

The same part, covered across other Kia models.