Parts for your 2014 Nissan Navara-Exhaust gasket

2014 Nissan Navara exhaust-gasket: what it does and when to replace it

For the 2014 Nissan Navara (D40), exhaust gaskets are very much a thing. Nissan’s D40 Factory Service Manual (EX and EM sections) specifies gaskets at the exhaust manifold-to-cylinder head, turbocharger connections on YD25DDTi diesels, and at exhaust pipe flanges. The Nissan FAST electronic parts catalogue and mainstream exhaust catalogues (e.g., Walker, Bosal) list multiple gasket options for this model. So, yes—exhaust gaskets are relevant and fitted to the 2014 Navara.

On the Navara, exhaust gaskets seal hot gas paths so the system stays quiet, safe, and efficient. The manifold gasket keeps combustion gases from escaping at the head, which protects performance and prevents that tell‑tale ticking noise. Diesel models also use a gasket at the turbo outlet and usually a donut or flange gasket at the front pipe joints. Proper sealing keeps turbo response crisp, helps the ECU’s fuelling stay on point, and stops fumes sneaking into the cabin.

When servicing, it’s smart to check for leaks and soot staining around joints and flanges. Common signs include a cold-start tick, a hiss under load, sulphury or diesel smells, black soot at a joint, sluggish spool on turbo models, and sometimes a slight drop in fuel economy. If any exhaust part is removed—manifold, turbo, cat/front pipe—replace the disturbed gaskets. Re-using old ones is false economy