There are two sizes of filler cap used on Perkins M90. The larger cap fits factory marinised version, whilst the smaller cap fits automotive / industrial versions.
To ensure that this cap is compatible with your engine, please choose between external cap diameter of either 62mm or 45mm using the radio button selection above before adding to your cart.
You might also be interested in our header tank caps. See our listings for details.
UK delivery is by 1st class Royal Mail. European and worldwide shipping is available.
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Works great, excellent replacement