Used Nissan Micra Gearbox

Both years fall within the K12 generation (2002–2010), so there is a reasonable chance of compatibility, but the engine code is the critical detail — a gearbox from the same engine code (for example CG10, CG13, CR12, or CR14) is far more likely to fit than one simply from a matching year. Facelift changes arrived around 2005, and ancillary or mounting details may have shifted around that point, so confirm the specific pairing with the breaker against both registrations before buying.

The K11 (1992–2002) and K12 (2002–2010) are separate generations with different engines and transmissions, so a straight swap is very unlikely. Engine codes differ between the two — K11 used units such as CG10 and CG13, while K12 introduced CR12 and CR14 — and gearboxes are matched to the engine, not the badge. Do not assume compatibility across this generational boundary; a breaker can confirm against your registration whether any crossover exists.

Yes, this matters entirely — an automatic and a manual gearbox are not interchangeable, and fitting the wrong type would require significant additional work to the car. When contacting a breaker, confirm your gearbox type alongside your engine code, as these two details together are the most important information you can supply. Check your V5 or run a VIN check if you are unsure which type you have.

Trim level does not affect gearbox fitment on the Micra K12 — the gearbox is determined by the engine code and whether the car is manual or automatic, not by whether it is badged S, E, Acenta, or Urbis. You may find cosmetic differences between donor and recipient cars (interior trim, colour), but these have no bearing on whether the gearbox itself will fit. Give the breaker your engine code and registration and they will match on what mechanically matters.

No — petrol and diesel engines use different gearboxes, and the two are not interchangeable. The Micra K12 diesel used the K9K engine, while petrol variants used codes such as CR12 and CR14, each paired to its own transmission. Always match the gearbox to your exact engine code, which you can find on your V5 logbook or via a VIN check.

The K12 generation ran to 2010, after which Nissan introduced the K13 (2010 onwards), so a 2009 car is K12 and a 2012 car is K13 — these are different generations with different engines and gearboxes. Crossing that generational boundary makes a straight swap very unlikely, but the engine code remains the definitive test, so provide both registrations to a breaker who can check whether any overlap exists. Never assume fitment based on year alone when a generation change falls between the two cars.