Gaskets
Engine gaskets seal the mating surfaces between engine components, retaining oil, coolant, air and combustion pressure where each system needs to stay contained.
What it does
A gasket fills the microscopic gaps between two bolted surfaces. The material and thickness must suit the temperature, pressure and fluid at that joint, which is why engine-code fitment matters.
Signs a gasket set is failing
- Oil or coolant leaking from an engine joint
- A ticking exhaust leak from a manifold flange
- Rough running caused by an intake air leak
- A gasket visibly crushed, split or hardened after removal
When to replace them
Replace whenever the sealed component is removed, or when a leak develops. Most engine gaskets are single-use and should not be refitted.
What to confirm before ordering
Have these ready and the counter can usually confirm the part in under a minute.
- Engine code and the exact component being sealed
- Whether bolts or seals are single-use and needed with the gasket
- The mating surfaces must be clean, flat and free of old gasket material
- Correct gasket thickness or grade where more than one is specified
Gaskets questions
Can an old engine gasket be reused?
Usually not. Most gaskets compress when tightened and do not seal reliably a second time. Fit a new gasket whenever the joint is opened.
Why does the engine code matter for a gasket?
Engines with the same capacity can use different port shapes, bolt patterns and gasket thicknesses. The engine code confirms the exact sealing set required.