Parts for your 2014 Mitsubishi Outlander-Exhaust gasket

2014 Mitsubishi Outlander exhaust gasket – purpose, tips, and when to replace

Based on technical sources including Mitsubishi’s ASA electronic parts catalogue (Exhaust group for the 2014 GF platform) and the Mitsubishi Motors Workshop Manual (Exhaust – Removal and Installation), the 2014 Mitsubishi Outlander is fitted with multiple exhaust gaskets. Aftermarket catalogues from major gasket makers also list specific manifold, front-pipe “donut”, and flange gaskets for this model and year, confirming it’s a relevant, serviceable part on Australian and New Zealand vehicles.

The exhaust gasket’s job is simple but critical: keep hot gases sealed at the joins so the Outlander stays quiet, efficient, and safe. On this model, gaskets are used between the cylinder head and exhaust manifold, at the manifold-to-front pipe or front pipe-to-catalyst connection (often a spring-bolted “donut” crush ring), and at downstream flanges near the centre pipe and rear muffler. A healthy seal stops chuffing or ticking noises, prevents fumes entering the cabin, protects oxygen sensor readings, and helps the CVT or auto manage fuel trims properly.

There’s no fixed replacement interval, exhaust gaskets are generally replaced when a joint is disturbed or if a leak is suspected. With age, heat cycles, and a bit of coastal life, owners may see failures around the 100,000–200,000 km mark, especially at the spring-joint donut. Using OEM-spec multi-layer steel (MLS) for the manifold and the correct profile crush ring for the front pipe is the safe bet. On spring-bolt joints, new springs, bolts, and nuts are recommended.

• Common signs: ticking on cold start, sooty marks at a flange, a whiff of exhaust, rasping under load, or a Check Engine Light from skewed O2 readings.
• Handy tips: let it cool fully, soak fasteners, support the system so it’s not in a bind, align flanges squarely, and torque evenly in the factory sequence. Avoid silicone sealants, they don’t belong on these joints.

For Aussie and Kiwi owners, a leaky exhaust can knock back a roadworthy or WOF. If the Outlander’s getting louder, smells off, or shows soot near a join, it’s time to book it in. Fresh gaskets, sorted studs, and intact hangers keep it compliant, quiet, and nice to drive.

Popular questions about 2014 Mitsubishi Outlander exhaust gaskets

How often should the exhaust gaskets be replaced?
They’re typically replaced on condition—whenever a joint is separated, or if there’s a leak. Many Outlanders go well past 100,000 km before any attention is needed, but coastal use, off-road knocks, or rust can bring that forward. If a manifold has been off, fit a new gasket as a matter of course.

Is it safe to drive with a leaking exhaust gasket?
Short trips might be possible, but it’s not ideal. Exhaust leaks can let fumes in, trigger fault codes, and overheat nearby components. In NZ a WOF can fail for leaks, and in Australia it can affect roadworthy checks. Best to repair promptly.

Which gasket types does the 2014 Outlander use?
This model commonly uses an MLS manifold-to-head gasket, a spring-jointed “donut” crush ring at the front pipe connection, and flat or ring-style flange gaskets further back. Exact type depends on engine (2.4L or V6) and exhaust configuration, so matching by VIN is smart.