Used Ford Mustang Differential

The sixth-generation Mustang (S550) ran from 2015 to 2023 in the UK, with a facelift arriving for the 2018 model year. Within that generation the engine code is the most important detail — a 2.3 EcoBoost and a 5.0 Coyote V8 will not share a differential, so confirm your engine code from your V5 or a VIN check before ordering. Whether a specific pre-facelift (2015–2017) unit crosses cleanly to a post-facelift (2018–2023) car is something to confirm with the breaker against your registration, as there were production changes across that boundary.

Both years sit within the S550 generation (2015–2023), but 2016 is pre-facelift and 2019 is post-facelift, so they cross the 2018 facelift boundary. Provided the engine codes match — 2.3 EcoBoost to 2.3 EcoBoost, or 5.0 V8 to 5.0 V8 — there is a reasonable chance of compatibility, but ancillary and mounting changes around the facelift mean you should confirm the specific part number with the breaker against both registrations before buying.

Yes, this matters above everything else — the 2.3 EcoBoost and the 5.0 V8 use different differentials, so you must match the engine code, not just the year or the Mustang badge. Check your V5 logbook or run a VIN check to get the exact engine code, and quote that to the breaker when requesting a quote. Supplying the wrong engine code is the most common reason a differential arrives and does not fit.

Trim level does not affect differential fitment on the Mustang — the GT, EcoBoost, EcoBoost Premium, and Bullitt derivatives all follow the engine code, not the badge or trim name. A GT differential is specific to the 5.0 V8 because of the engine, not because it says GT on the car; an EcoBoost Premium uses the same differential as a base EcoBoost of the same year. Bear in mind that if a breaker's listed unit came from a different trim it may arrive without certain brackets or ancillary parts, so check what is included when you get your quote.

Gearbox type is a key fitment factor for the differential, so a unit from an automatic Mustang is unlikely to be a straightforward swap onto a manual car, and vice versa. Always tell the breaker your gearbox type as well as your engine code when requesting a quote, and ask them to match both details from the donor vehicle. Never assume the gearbox type from the year alone, as both transmission options were available across the S550 generation.

Give the breaker your full registration number plus your engine code (from the V5 or a VIN check), your fuel type, and your gearbox type — manual or automatic — as these are the details that determine fitment, not the colour, body style, or trim level. Year alone is not enough, because engine variants changed across the S550 generation (2015–2023) and the 2018 facelift introduced production changes that may affect some ancillary fittings. The breaker can then check the donor vehicle's details against yours and confirm compatibility before you commit to a purchase.