Overview
Valve cover gasket for the Kawasaki FD620D engine. HydraMaster part number 000-057-023.
Two are required per engine — the FD620D is a V-twin, with one valve cover per cylinder head.
What it fits
- Kawasaki FD620D engines as fitted to HydraMaster truckmounts
We have not located this part number in the HydraMaster machine parts lists we hold, so we cannot list the specific truckmount models it appears in. What we can state is the engine it belongs to, which is what matters when you are ordering. If you know your engine is an FD620D, this is the gasket.
When to replace it
Valve cover gaskets are a routine casualty of any valve clearance adjustment — and on these engines valve clearance is a scheduled maintenance item, so the gasket gets disturbed on a known interval. Have the gaskets on the shelf before you start the job rather than discovering you need them with the covers off.
Outside of scheduled work, the usual sign is oil weeping down the outside of the head and collecting on the engine or in the machine bay. On a truckmount that oil then attracts the fine dust and fibre that a cleaning van is full of, which is why an FD620D with a weeping cover looks worse than the leak actually is.
Fitting advice
Do not re-use a valve cover gasket. It costs very little and the cover has to come off again if it weeps.
Clean both faces before fitting and check the cover itself for distortion — over-tightening the cover fasteners on a previous service is the usual cause of a cover that will not seal on a new gasket.
Follow Kawasaki's torque figure for the cover fasteners. These are light fastenings into an alloy head and they do not want to be nipped up by feel.
Frequently asked questions
How many do I need?
Two per engine.
Will it fit an FD620D in something other than a truckmount?
It is a gasket for that engine, so in principle yes. Check the engine model and specification number on the engine's data label before ordering.
Is this a genuine Kawasaki part?
It is supplied under HydraMaster part number 000-057-023. We have not verified whether it carries a Kawasaki part number as well. Ask us if OEM branding matters for your warranty situation.
Do I need sealant as well?
Follow the engine manufacturer's instruction for your engine — some applications call for sealant at the cover corners and some do not. Do not apply sealant on assumption.
Servicing an FD620D? Tell us what you are doing and we will check what else in the service kit you are likely to want at the same time.
