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

OEM Part Number: LR067840

Accuracy note: genuine reference shared across Evoque and Discovery Sport, since both share the same platform — confirm your exact engine and build year before ordering.

2013-2018, 2.0L Turbo Diesel/Petrol	Land Rover OEM: LR067840 (also referenced as LR028121, LR089421)

Often Blamed on the Battery Instead

A weak battery and a failing alternator produce almost identical symptoms at first — dim lights, slow starts, a car that won't hold charge — which is exactly why so many people replace the battery, only to be back at the garage a few weeks later with the real culprit untouched.

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.

What It Does

The alternator generates electricity while the engine runs, charging the battery and powering the car's electrical systems directly. A healthy alternator means the battery is mostly there for starting the engine and covering brief demand spikes — not for actually running the car's electronics on its own.

Land Rover Discovery Sport Alternator reference plate

Fitment & Compatibility

Alternator output rating differs between engine sizes and trims of the Discovery Sport, with higher-spec cars carrying more onboard electronics that demand a higher-output unit. Always confirm the exact part number for your specific engine before ordering. Whether you're sourcing a replacement alternator for your Land Rover Discovery Sport from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying.

A Genuinely Alarming, Real Finding Worth Knowing

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.

A genuinely useful diagnostic technique worth trying: removing the alternator drive belt and starting the engine briefly can help confirm whether a persistent noise is genuinely coming from the alternator — if the noise is still present with the belt removed, it's more likely related to the ignition system or something else entirely.

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.

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), how difficult this job is to DIY, and which brands are worth trusting.

More Land Rover Alternator

The same part, covered across other Land Rover models.