Second Hand Alfa Romeo 155 Gearbox

The Alfa Romeo 155 was produced from 1992 to 1998 as a single generation, with a facelift arriving in 1995 that brought trim and styling updates. For gearbox fitment, the engine code is the critical factor rather than the model year alone, so a pre-facelift and post-facelift 155 sharing the same engine code are strong candidates for gearbox compatibility. That said, ancillary mounting points or brackets can change across a production run, so always confirm with the breaker against your specific registration before purchasing.

The Twin Spark and earlier 8-valve engines are mechanically different units with their own engine codes, and a gearbox matched to one will not necessarily drop straight into the other. Fuel type is also relevant here since petrol variants across different states of tune used different gearbox specifications. Supply your engine code from your V5 or a VIN check to the breaker so they can confirm whether the unit they have is the correct match for your car.

Trim level does not affect gearbox fitment on the 155; the Super and Veloce are differentiated by equipment, interior finish, and cosmetic details rather than drivetrain specification. What actually determines compatibility is the engine code, fuel type, and whether the car uses a manual or automatic gearbox. Be aware that if you are sourcing from a higher-spec donor car it may have come with different ancillary components attached, so confirm the exact spec with the breaker against your registration.

Your 1994 car sits in the pre-facelift phase of the 155 generation, while a 1996 car falls after the 1995 facelift, so this question does cross a production boundary. If both cars share the same engine code and gearbox type, there is a reasonable chance of compatibility, but mounting or ancillary changes introduced at the facelift mean you should not assume a straight swap. Give the breaker both registrations or both engine codes and ask them to verify the units against each other before you commit.

Yes, fuel type is one of the most important fitment factors for a gearbox; petrol and diesel variants of the 155 use entirely different units that are not interchangeable. Always specify your fuel type alongside the engine code when contacting a breaker, as engine code alone is the surest way to confirm you are getting the right unit. Providing the information from your V5 or a VIN check gives the breaker the best chance of matching a compatible gearbox to your car.

The 145, 147, and 155 are separate models with different platforms and engine fitments, so a gearbox from one of those cars cannot be assumed to fit the 155 without thorough verification. Some Alfa Romeo engines of the same code did appear across multiple models in the same era, which occasionally means a gearbox unit is physically compatible, but differences in mounting, ratios, or ancillary connections make this something to confirm with the breaker rather than take for granted. Always give the breaker your 155's engine code and ask them to check it directly against the donor unit.