Second Hand Alfa Romeo 155 Flywheel

The Alfa Romeo 155 ran from 1992 to 1998 as a single generation, with a facelift in 1995 that brought some trim and cosmetic updates but did not fundamentally change the engine lineup. Flywheel fitment is driven almost entirely by engine code and gearbox type, so whether a pre-facelift or post-facelift flywheel crosses over depends on whether both cars share the same engine code — not the model year alone. Supply your engine code (found on your V5 or via a VIN check) to the breaker and ask them to match against the donor vehicle's code before buying.

No — petrol and diesel flywheels are not interchangeable on the 155. The diesel variants, which used the VM 2.5 turbodiesel engine, have different torque characteristics and bolt patterns compared to the petrol units such as the Twin Spark or the V6. Always make clear to the breaker whether your car is petrol or diesel, and provide the engine code so they can match the correct flywheel.

No, trim level has no bearing on flywheel fitment — the flywheel is determined by the engine and gearbox, not whether the car is a base, Super, Silverstone, or Q4 variant. The only exception worth noting is the Q4 four-wheel-drive variant, which used a specific drivetrain layout that may affect associated components, so mention if your car is a Q4 when speaking to the breaker. For all other trim levels, give the breaker your engine code and they will identify the correct part.

Yes, the Twin Spark engines (1.8 TS and 2.0 TS) have their own engine codes and the flywheel must match that specific code rather than just the displacement. A 2.0 Twin Spark and an older 2.0 8-valve unit are mechanically distinct, so a flywheel from one will not necessarily suit the other even though the badge looks similar. Give the breaker your exact engine code — visible on the V5 or confirmed via a VIN check — to avoid an expensive mismatch.

All Alfa Romeo 155 variants use a conventional single-mass flywheel — dual-mass flywheels were not a feature of this era's Alfa drivetrain. This is generally good news for buyers of used parts, as single-mass flywheels from a breaker are straightforward to source and assess. That said, always ask the breaker to confirm the condition of the flywheel's friction face and whether it has been skimmed, as a warped or worn flywheel from a breaker can cause clutch judder even if it technically fits.

No — the V6 (Busso 2.5 or 2.0 V6) engine has a different bolt pattern, diameter, and mass specification compared to the four-cylinder units, so the flywheels are not interchangeable. Mixing them is a safety risk as well as a fitment failure, so always source a flywheel that matches your exact engine code. Tell the breaker your engine code and gearbox type and they will be able to confirm which flywheel from their stock is compatible with your car.