Nissan Navara Exhaust Manifold Replacement Parts

The Nissan Navara does have an exhaust manifold — it sits between the engine's cylinder head and the turbocharger, and is sometimes called a turbo manifold or exhaust header on turbocharged diesel engines. All UK-market Navaras were diesel and turbocharged, so the exhaust manifold is a genuine part you'll find on every variant. It's a commonly replaced item due to cracking from heat cycling, so used examples are readily available from breakers.

The D40 and D23 are distinct generations with different engines — the D40 used the YD25DDTi 2.5-litre diesel, while the D23 moved to a 2.3-litre twin-turbocharged diesel (the YS23DDT), so the exhaust manifolds are not interchangeable between these generations. Always source a manifold that matches your exact generation and engine code, not just the Navara nameplate. Confirm the specific part number with the breaker against your registration to be certain.

Trim level makes no difference to exhaust manifold fitment on the D40 Navara — whether your truck is a Tekna, Outlaw, SE, or any other grade, the engine and therefore the manifold are the same across trims for a given engine variant. What matters is the engine code and model year, not the badge on the tailgate. You may find cosmetic differences around the engine bay between specs, but the manifold itself is identical.

The D40 Navara received a facelift around 2010, but the core YD25DDTi 2.5-litre diesel engine carried across both phases of the generation, which means the exhaust manifold is generally considered compatible. However, there were incremental engine updates over the D40's life, so it's worth confirming the exact engine code on your vehicle matches the donor vehicle at the breaker before purchasing. Never assume fitment without that check.

For the exhaust manifold itself, the Euro emissions standard is less critical than it is for downstream components like the DPF or catalytic converter — the manifold is primarily determined by your engine code and generation. That said, later D40 engines and the D23's engines had revisions to meet tighter emissions standards, and a manifold from a different emissions era could differ in port shape, EGR connections, or heat shielding. Confirm with the breaker that the manifold from their donor vehicle matches your engine code and year to avoid compatibility issues.

The D23 Navara's 2.3-litre diesel was offered in both single-turbo and twin-turbo (biturbo) configurations in the UK market, and these have different exhaust manifold designs to suit the differing turbocharger arrangements. Fitting a single-turbo manifold onto a twin-turbo engine (or vice versa) is not straightforward and is very likely to cause fitment or performance issues. Always tell the breaker which specific turbo configuration your vehicle has, and confirm this against your registration, to ensure you receive the correct part.