Ford Kuga Alternator: Specs, Fitment & Common Faults

Multiple Kuga owners have reported alternator failures serious enough to produce smoke — here's the early warning signs worth acting on quickly.

Illustration for editorial purposes

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OEM Part Number: AG9T-10300-BA (genuine alternator — confirm via VIN) — aftermarket alternators Bosch 0 986 082 220 / Valeo 440688

Accuracy note: Covers the Ford Kuga (Mk2 2013-2019) 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 0 986 082 220 (120 A, rigid multi-rib pulley, 6 ribs, 49 mm, reman exchange, PL174 plug with B+ M8 and LIN, excludes vacuum pump, core charge GBP 23.51); Bosch 0 986 084 230 (150 A, freewheel clutch pulley, 6 ribs, 54 mm, reman exchange, PL174 plug with B+ M8 and LIN, double pivot mounting, excludes vacuum pump, core charge GBP 47.03); Valeo 440688 (150 A, V-ribbed pulley, 6 ribs, 54 mm, reman exchange, M8 and COM, four-point mounting, L40 position, core charge GBP 50.24); Valeo 439906 (150 A, freewheel clutch pulley, 6 ribs, 55 mm, new, B+, four-point mounting, L80 position); Valeo 200001 (120 A, freewheel clutch pulley, 6 ribs, 54 mm, reman, B+, L78 position); Hella 8EL 015 630-121 (120 A, freewheel clutch pulley, 6 ribs, 54 mm, new, core charge GBP 6.91); Lucas LRA03470 (150 A, freewheel clutch pulley, 6 ribs, 54 mm, reman, plug 0213 with M8 B+ and COM/LIN2, core charge GBP 25.12); AS-PL A3552S (150 A, freewheel clutch pulley, 6 ribs, 55 mm, new, PL_2800 plug)
Outputs & variants	Two outputs, 120 A and 150 A. The 120 A alternators come with either a 49 mm rigid pulley or a 54 mm freewheel pulley; the 150 A alternators are all freewheel clutch pulley at 51 to 55 mm and cover the 2.0 TDCi diesels and 1.5/1.6 EcoBoost petrols that make up most UK Kugas.
Genuine (OE) numbers quoted	AS-PL A3267S quotes TG15C186; AS-PL A3666S quotes FG15T101; AS-PL A3129 quotes TG12C087; AS-PL A3552S quotes FG15T056; AS-PL A6010 quotes 104210-3513; AS-PL A3259 quotes TG12C145.
Fitment notes	Pulley diameter varies between 49 mm, 51 mm, 54 mm and 55 mm even at the same amperage, so compare with the old unit; Valeo units also differ by regulator position (L40, L78, L80); exchange units from Bosch, Valeo and Lucas carry a refundable core charge; Bosch and Ridex units exclude engines with an alternator-driven vacuum pump.

A Genuinely Serious Warning Sign: Don't Ignore a Hot-Smelling Alternator — Ford Kuga Alternator

This is worth taking seriously rather than filing under "annoying noise": multiple Kuga owners have reported alternator failures serious enough to produce visible smoke, and in at least one documented case, a genuinely alarming fire from the alternator itself while the car was parked on the drive. A battery warning light appearing suddenly, especially combined with a noticeably hot smell from the engine bay or the alternator casing feeling very hot to the touch, is a signal to stop driving and have it checked immediately rather than continuing on to a planned destination. Several owners have also reported failures at surprisingly low mileage — some in the 26,000-59,000 mile range on cars only a few years old — so don't assume a newer or lower-mileage Kuga is automatically safe from this.

Worth knowing: a whining noise that changes pitch with engine revs, combined with the alternator casing feeling unusually hot soon after starting, is a genuine early warning sign worth acting on quickly rather than waiting for a dashboard warning light, which doesn't always appear before more serious failure.

Ford Kuga Alternator: Often Blamed on the Battery Instead

Early on, a weak Ford Kuga battery and a dying alternator look almost identical — dim lights, sluggish starts, a car that won't hold its charge — which is exactly why so many people fit a new battery and end up back at the garage weeks later, the actual fault still unaddressed.

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.

Ford Kuga Alternator: Watch: Replacing It

🎬 Watch: How to replace the Alternator on the Ford Kuga 2013 to 2020

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Mk2 date range

Ford Kuga Alternator: What It Does

On the Ford Kuga, while the engine runs, the alternator generates the electricity that charges the battery and powers the car's electrical systems directly. With a healthy alternator, the battery's real job becomes starting the engine and covering brief demand spikes, rather than running the electronics on its own.

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Ford Kuga 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 Ford Alternator

The same part, covered across other Ford models.