Used Alfa Romeo 156 Exhaust Manifold

Yes, every Alfa Romeo 156 has an exhaust manifold regardless of engine variant — it is the cast or fabricated section that collects exhaust gases from the cylinder head and routes them into the downpipe. Both petrol and diesel engines across the full 156 production run (1997–2005) use one, though the design differs significantly between engine families. Never assume a manifold from a different engine will fit yours.

The 156 received its facelift in 2002, but whether the exhaust manifold crosses that boundary depends entirely on whether both cars share the same engine code — the facelift did not introduce wholesale engine changes, so some engine variants carried over largely unchanged. However, there were running production updates and some revised engine specifications over the model's life, so a manifold that looks similar may not seal or mount identically. Confirm against your exact engine code with the breaker before buying.

Yes, this is the most important factor — the petrol engines (Twin Spark, V6) and the diesel engines (JTD) all use entirely different manifolds that are not interchangeable with each other. Within the petrol range, the Twin Spark four-cylinder and the 2.5 or 3.2 V6 also have distinct manifold designs, and within the diesel range the 1.9 JTD and 2.4 JTD are different again. Always quote your engine code (found on the engine block or V5C) when approaching a breaker.

Trim level does not affect exhaust manifold fitment on the Alfa Romeo 156 — what matters is the engine code, not whether the car is a Turismo, Veloce, or the Sportwagon estate body style. A manifold from a Sportwagon with the same engine code as your saloon is just as valid a donor as one from any other trim. You may find cosmetic differences in how surrounding heat shielding is clipped, but the manifold itself is engine-specific, not trim-specific.

The 1.9 JTD engine in the 156 went through specification updates over the production run, including changes to emissions tuning, so a manifold from an early JTD (pre-2002) may differ in flange pattern or port dimensions from a later one. The engine code stamped on the block is your best guide — if both donor and recipient share an identical code the chances of a match are much higher. Confirm the full engine code with the breaker before committing, as a visually similar manifold from the wrong variant can cause exhaust leaks or fitment problems.

The 147 shared some engine families with the 156 (including Twin Spark and JTD variants), and in some cases the manifolds are identical, but this is not guaranteed because ancillary routing, heat shielding mountings, and downpipe angles can differ between the two bodyshells. This is strong confirm-with-the-breaker territory — quote both engine codes and ask the breaker to compare the flange pattern and mounting points before you buy. Never assume cross-model fitment even where engines look the same on paper.