Kia Venga Alternator: Specs, Fitment & Common Faults

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

Illustration for editorial purposes

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OEM Part Number: 37300-2A400 (as quoted in catalogue listings — confirm via VIN) — aftermarket alternators Bosch 0 986 083 830 / Valeo 444731

Accuracy note: Covers the Kia Venga (2010-2019) as listed in the UK aftermarket catalogues. Alternators are sold by output (amps), pulley type and plug, and the same model usually has two or three units depending on engine, start-stop and the electrical load of the trim — a 120 A unit on a car built for 150 A will undercharge, and a rigid pulley on a car designed for a freewheel clutch pulley will shred belts. The references below are UK aftermarket catalogue listings for this generation, labelled by brand; many are remanufactured exchange units that carry a core charge until the old alternator is returned. Genuine numbers are shown only where a listing quotes one. Check the amp rating, pulley and plug stamped on the old unit, or confirm via VIN, before ordering.

Alternators (aftermarket)	Bosch 0 986 083 830 (120 A, freewheel pulley, 5 ribs, 57 mm, remanufactured exchange, core charge £24.86, PL176 plug, excludes vacuum pump); Valeo 444731 (120 A, freewheel pulley, 5 ribs, 58 mm, remanufactured exchange, core charge £50.24); Hella 8EL 011 713-401 (130 A, freewheel pulley, 5 ribs, 57 mm, new); AS-PL A3543S (120 A, freewheel pulley, 5 ribs, 57 mm, new, PL_3307); AS-PL A9295S (120 A, freewheel pulley, 5 ribs, 57 mm, new, PL_2002); AS-PL A9342S (90 A, freewheel pulley, 6 ribs, 58 mm, new, PL_3307); Ridex 4G0755 (120 A, freewheel pulley, 5 ribs, 57 mm, new, excludes vacuum pump); Rotovis 9090511 (120 A, freewheel pulley, 5 ribs, 57 mm, remanufactured, L plug).
Outputs & variants	90 A and 110 A on a 6-rib 58 mm pulley for the 1.4 and 1.6 CVVT petrols, and 120 A or 130 A on a 5-rib 57 mm pulley for the 1.4 and 1.6 CRDi diesels. All listed units are freewheel.
Genuine (OE) numbers quoted	AS-PL A3543S quotes 37300-2A400; AS-PL A9295S quotes 37300-2A150; AS-PL A9342S quotes 37300-2B520; AS-PL A3602S (110 A, 6 ribs, 58 mm) quotes 0986083550; AS-PL A3316S (130 A, 5 ribs, 57 mm) quotes 2611067; AS-PL A9178 (110 A, 6 ribs, 58 mm) quotes 37300-2B600.
Fitment notes	Count the ribs on the old pulley, with 5 ribs pointing to the diesel 120 A unit and 6 ribs to the petrol 90/110 A unit; the Bosch and Valeo exchange units carry a core charge refunded on return of the old alternator.

A Genuinely Specific, Real Root Cause Worth Knowing — Kia Venga 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 Venga Alternator: Often Blamed on the Battery Instead

On the Kia Venga, 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.

Kia Venga Alternator: Watch: Replacing It

🎬 Watch: Remove & Replace Alternator - 1.6 Hyundai Accent , Elantra , Kia Rio , Rio5 , Forte (sister (kia rio / hyundai accent 1.6 gamma))

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Same 1.6 Gamma engine as Venga 1.6 petrol; no Venga/ix20 alternator video found

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 Venga Alternator: What It Does

Electricity generation while the Kia Venga'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.

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Kia Venga 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.