Land Rover Discovery Sport Alternator: Specs, Fitment & Common Faults
On the Discovery Sport, an alternator failure on related models has genuinely been documented presenting as a cascade of unrelated warnings, with the battery light appearing right at the very end.
Illustration for editorial purposes
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OEM Part Number: LR067840 (genuine alternator — confirm via VIN) — aftermarket alternators Bosch 1 986 A01 053 / Hella 8EL 015 637-131
| Alternators (aftermarket) | Bosch 1 986 A01 053 (180 A, freewheel pulley, 6 ribs, 58.2 mm, new, 341 plug, anticlockwise rotation, excludes vacuum pump); Hella 8EL 015 637-131 (180 A, freewheel pulley, 6 ribs, 58 mm, new, core charge £6.91); AS-PL A0992(SEG) (180 A, freewheel pulley, 6 ribs, 58 mm, new, PL_2305); AS-PL A0922(SEG) (215 A, freewheel pulley, 6 ribs, 54 mm, new, PL_2310); AS-PL A0837S (180 A, 53 mm, new, PL_2305); AS-PL A0839S (230 A, 53 mm, new, PL_2305); Rotovis 9091598 (215 A, freewheel pulley, 6 ribs, 54 mm, remanufactured, COM plug); HC-Cargo F 032 116 408 (210 A, 54.6 mm, new, PL174 plug). |
|---|---|
| Outputs & variants | 180 A 58 mm freewheel units (Bosch pattern, anticlockwise) for the early 2.2 TD4/SD4 diesel carried over from the Freelander 2, 215 A 54 mm freewheel units for the 2.0 Ingenium diesel, and 180/230 A 53 mm units for the 2.0 Ingenium petrol; later MHEV and PHEV cars use a 48 V starter-generator (AS-PL A3871 VALEO, 250 A). |
| Genuine (OE) numbers quoted | AS-PL A0992(SEG) quotes 0125811091; AS-PL A0922(SEG) quotes 0125812061; AS-PL A0837S quotes 0125812017; AS-PL A0839S quotes 0125813022; AS-PL A3871(VALEO) quotes 615009. |
| Fitment notes | The 2.2 diesel (2014-2015) and the 2.0 Ingenium (2015 on) use completely different alternators, so check the engine before ordering; the 2.2 unit rotates anticlockwise and has a 58 mm pulley, while the Ingenium units are 53 or 54 mm. |
Land Rover Discovery Sport Alternator: Often Blamed on the Battery Instead
On the Land Rover Discovery Sport, 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.
Land Rover Discovery Sport Alternator: What It Does
The Land Rover Discovery Sport'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.
Land Rover Discovery Sport Alternator: Watch: Replacing It
2.0 Si4 petrol; diesel Ingenium layout differs
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A Genuinely Alarming, Real Finding Worth Knowing — Land Rover Discovery Sport Alternator
If you're seeing a cascade of seemingly unrelated warning lights and gauge faults appear together while driving, this is genuinely worth knowing: documented cases on related Land Rover models describe an alternator failure presenting not as a simple flat battery warning, but as a sudden combination of traction control, ABS, and brake warning lights illuminating together, the speedometer stopping working, and the fuel gauge dropping to zero, with the battery warning light itself only appearing right at the very end, just before the engine stopped.
It's also genuinely worth knowing that a persistent grinding noise which worsens with speed can sometimes simply be a rusty pulley on the alternator belt, worth checking and cleaning this specific component before assuming a genuine alternator fault.
Land Rover Discovery Sport 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 Land Rover Alternator
The same part, covered across other Land Rover models.