CYF000040 - Washer

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- €3,20

€3,20

€3,20 - €3,20

€3,20

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Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.

Washer is a 4BA shakeproof (serrated) lock washer used in the rear side window fixings.

The serrated faces bite into the mating surfaces to resist the fastener loosening under vibration.

Alternative Codes

CYF000040

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Frequently asked questions

What is the CYF000040 washer and what does it do?

The CYF000040 is a 4BA shakeproof lock washer used in the rear side window fixings. Its serrated faces bite into the mating surfaces as the screw is tightened, helping the fastener resist loosening under vibration.

How many of these washers do I need?

You'll typically need one CYF000040 washer per window fixing screw, so count the fasteners on the rear side window you're working on and order to match. They're usually fitted one per screw to keep each fixing secure.

Can a shakeproof washer be reused?

Shakeproof washers like the CYF000040 are typically best replaced rather than reused. Once the serrated teeth have bitten into a surface they lose some grip, so fresh washers help keep the rear side window fixings tight against vibration.