Karcher Steam Cleaner Pump complete MK4.473-020.3

So steam cleaner stops producing steam. The normal “pulsing rattle” is noticeably absent. Took off the pressure release valve cap and poured water directly into the boiler. Put the cap back on and turned the cleaner on. Water heats up, but nothing was coming out at the other end. Suspected a pump fault and this was the only component listed that did that job. Unscrewed the 6 screws and could instantly see the part I’d be replacing. Took minutes and was very easy to replace (the fixings just push on). Steam cleaner is now back up and running for about 10% of the cost of a new one. Very pleased.