How to Install Dishwasher Water Inlet Valve 00425458 in a Bosch Dishwasher
Quick answer: Shut off water and power, remove the toe panel, find the inlet valve at the front left corner, disconnect the supply hose, the internal fill hose and the wire plug, unclip the old valve, mount 00425458 in the same bracket, reconnect everything and run a fill cycle while watching for drips.
Water inlet valve 00425458 is the electrically operated valve that lets water into a Bosch dishwasher when the control calls for a fill. It mounts low at the front left of the cabinet, right behind the toe kick panel, where the household supply hose screws onto its threaded inlet and a rubber hose carries water from its outlet into the tub. The valve is listed for well over three hundred Bosch models including SHE43C05UC17 and SHI6805UC12 and for Kenmore Elite dishwashers built by Bosch.
When this valve fails the dishwasher either does not fill at all, fills very slowly, or keeps trickling water in after the cycle ends. Bosch places the valve where it can be reached without pulling the dishwasher out from under the counter, so the job is mostly a matter of working carefully in a cramped space. The manufacturer's instructions call for unplugging the dishwasher, shutting off the water supply and wearing work gloves, and this guide follows that order.
See part details and every compatible model: 00425458
- Switch off the dishwasher's breaker or unplug it under the sink before opening the toe panel; the valve carries line voltage.
- Close the supply shutoff under the sink and relieve pressure by starting a cycle briefly before disconnecting the hose.
- Wear work gloves; the bracket edges behind the toe panel are sharp sheet metal.
- Keep the wire connector dry; wipe up spilled water before plugging it onto the new valve.
Tools and Parts You Need
- Torx and Phillips screwdrivers for the toe panel and bracket
- Adjustable wrench for the supply hose fitting
- Hose clamp pliers or slip-joint pliers
- Shallow pan and towels for residual water
- Flashlight or headlamp
- Work gloves
- Small bucket to catch water from the supply hose
Step-by-Step Installation
- Cut water and power Close the shutoff valve under the sink and turn off the dishwasher's breaker or unplug its cord. Start a cycle for a few seconds first if power is still on to bleed pressure from the hose.
- Remove the toe panel Take out the screws at the bottom front of the dishwasher and lift away the toe kick panel and any insulation pad behind it. Set the screws aside in order.
- Locate the valve Shine a light into the front left corner. The inlet valve sits in a plastic or metal bracket with the supply hose on one side, a rubber outlet hose on the other and a wire connector on the solenoid.
- Disconnect the supply hose Place a pan under the valve and unscrew the supply hose fitting from the valve inlet with a wrench. Let the residual water drain into the pan.
- Free the outlet hose and wiring Squeeze the spring clamp on the outlet hose with pliers, slide it back and pull the hose off the valve. Press the tab on the wire connector and unplug it.
- Remove the old valve Unscrew or unclip the valve from its bracket. Note the orientation of the outlet spigot so the new valve goes in the same way.
- Mount 00425458 Fit the new valve into the bracket in the same orientation and fasten it. Push the outlet hose fully onto the spigot and slide the clamp back over the hose end, then plug in the wire connector until it clicks.
- Reconnect the supply Thread the supply hose onto the valve inlet by hand, then tighten a quarter turn with the wrench. Do not overtighten a plastic inlet thread.
- Test for leaks Open the shutoff, restore power and run a rinse cycle with the toe panel still off. Watch both hose joints during the fill, then reinstall the panel once everything stays dry.
Fit Checks Before You Call the Job Done
- The new valve seats in the bracket without forcing and its mounting holes line up.
- The outlet spigot points the same direction as on the old valve so the hose does not kink.
- The wire connector clicks fully home on the solenoid tabs.
- The supply hose fitting threads on smoothly with no cross-threading.
- During the first fill the valve opens with a quiet hum and closes cleanly with no trickle afterward.
Common Mistakes to Avoid
Skipping the pressure bleed Unscrewing a pressurized supply hose sprays water across the electronics behind the toe panel. Bleed it first.
Overtightening the inlet fitting The valve inlet thread can crack if you lean on the wrench. Hand tight plus a quarter turn is enough with a good washer in the hose fitting.
Reusing a hardened hose washer The rubber washer in the supply hose end flattens with age. Replace it or you will chase a slow drip.
Leaving the outlet clamp loose A spring clamp that is not centered on the hose end lets the hose blow off under fill pressure and floods the cabinet floor.
Testing with the panel already on Always run the first fill with the toe panel off so a leak is visible before it soaks the insulation.
Troubleshooting After Installation
No fill after installation Check the shutoff under the sink is fully open and the wire connector is seated. Also confirm the door latches, since Bosch will not fill with the door unlatched.
Slow fill Debris from the old valve may be lodged in the inlet screen. Remove the supply hose and clean the screen in the valve inlet.
Drip at the supply fitting Remove the hose, inspect the rubber washer and reseat it flat before tightening again.
Water keeps entering when the dishwasher is off The new valve is unlikely to be at fault; check that the supply hose is connected to the valve inlet and not to the outlet spigot.
Care Tips After the Repair
- Replace the supply hose washer whenever the hose is disconnected.
- Clean the inlet screen every couple of years if your water carries sediment.
- Do not close the shutoff under the sink so hard that it seizes; it needs to work in an emergency.
- Check the toe panel area for dampness twice a year; early drips are easy to fix.
Compatible Models (Sample)
This part is listed for 376 Bosch models in our fitment data. Always confirm your exact model number on the appliance's rating plate.
Repair Difficulty and Time
Difficulty: Moderate. Typical time: 30 to 60 minutes.
Frequently Asked Questions
Does 00425458 fit Kenmore Elite dishwashers?
Yes. Bosch-built Kenmore Elite models such as 63016304401 and 63016304403 are on the compatibility list for this valve.
Do I have to pull the dishwasher out from under the counter?
No. The valve is reachable through the toe panel opening at the front left corner on the listed Bosch models.
How do I know the valve is bad and not the control?
If the dishwasher hums at the valve but no water enters, or fills only when tapped, the valve is the usual culprit. No hum at all points to wiring or control.
Is there a video for this repair?
Yes, an installation video exists for this valve and follows the same sequence described here.
Final Checklist
- Water shutoff closed and pressure bled
- Power off at breaker or plug
- Toe panel and insulation removed
- Supply hose, outlet hose and wire connector disconnected
- Old valve out, orientation noted
- 00425458 mounted, hose clamped and connector clicked in
- Supply hose tightened with fresh washer
- Fill cycle run with panel off, no leaks, panel reinstalled