Spark Plug Boss Seal Jaguar XJ40 XJ6 3.2 4.0 (1990-94) - EAC4049

Fits Models: 
NOTE: 6x required
XJ40- XJ6, all 3.2 + 4.0 engines - All Years (1990-94)
XJS, all 4.0 AJ6 engines - Years 1991-94 (to VIN 196089)

Equivalent to Jaguar part number (s):  EAC4049

Quantity: 1

The Spark Plug Boss Seal is a flexible gasket that sits between the Camshaft Cover and Cylinder Head of your engine, around the holes where you'd access the spark plugs. Over time, the gaskets can go hard and engine oil can seep out under pressure. You might notice a smell of warm fumes, a pool of oil in the galleries around the spark plugs, and occasionally a misfire too.  Have your Jaguar checked over for leaks by a competent person who will clean the engine properly and run it to see where the leaks are coming from.


Model Year Range is a guide, please check VIN for fitment accuracy or contact us for help or further information *Image is for illustration purposes, colour/item may differ slightly*