Second Hand Alfa Romeo 155 Dual Mass Flywheel

Only certain 155 variants were fitted with a dual mass flywheel — specifically some of the diesel and higher-output petrol engines rather than the full range. The 155 was produced from 1992 to 1998, and fitment of a dual mass flywheel depended heavily on the specific engine fitted, so you cannot assume your car has one purely based on year or trim. If you are unsure whether your 155 has a dual mass flywheel rather than a single mass unit, check your V5 engine code and confirm with the breaker, as not every 155 came with one.

The dual mass flywheel on the 155 is associated with specific engine variants rather than the model as a whole, and the engine code printed on your V5 or available via a VIN check is the single most important detail you need before ordering. Mechanical components like flywheels follow the engine, not the badge or trim level, so two 155s of the same year can require completely different parts depending on what is under the bonnet. Supply your engine code to the breaker so they can match the correct unit rather than guessing from year alone.

The 155 received a facelift in 1995, and while the engine family continued across that boundary, there is a real possibility of ancillary or mounting changes mid-production that could affect whether a flywheel from one phase fits the other. The safest approach is to confirm directly with the breaker by providing your full engine code and registration, rather than assuming pre- and post-facelift units are identical. A good breaker will cross-reference both codes before supplying the part.

Trim level has no bearing on flywheel fitment — the flywheel follows the engine, not whether the car is a base, Super, or Cloverleaf variant. What matters is the engine code, fuel type, and gearbox type, all of which can be confirmed from your V5 or a VIN check. Two 155s in different trim levels but with the same engine code will require the same flywheel, so do not let a difference in specification worry you on this point.

The 155 Q4 used a different drivetrain layout to the standard front-wheel-drive models, and the engine in the Q4 was distinct, meaning the flywheel specification is likely to differ from other 155 variants. As with all 155 variants, the engine code is the most reliable guide to the correct part, and the Q4's additional drivetrain complexity makes it especially important to confirm fitment details with the breaker against your registration. Do not assume a flywheel sourced for a standard 155 will suit the Q4 without that verification.

If another Alfa Romeo model of the same era shared the same engine code as your 155, the flywheel may be compatible, but this is not something to assume without checking. Engine families were shared across Alfa's range in the 1990s, so a breaker experienced with the marque may be able to identify a suitable alternative if a 155-specific unit is hard to find. Always confirm cross-model compatibility with the breaker by supplying your engine code, as even closely related engines can have differences in the bell housing or mounting that affect fitment.