- Description
The Miele Reducer Piece (Part #5543291) is a genuine OEM fitting designed for use with older Miele dishwashers equipped with an external Waterproof System (WPS). This reducer adapts between different thread standards, allowing proper connection of water supply components.
This part converts 3/4" NPTF (National Pipe Thread Fuel) to 9/16" UNEF (Unified Extra Fine), making it essential when working with Miele’s European/British-style fittings in North American plumbing systems.
Key Features
- Converts 3/4" NPTF to 9/16" UNEF thread
- Designed for older Miele dishwasher installations
- Supports external Waterproof System (WPS) connections
- Enables proper fit between differing pipe standards
- Genuine Miele OEM component
Why This Part Matters
- Miele systems often use European/British thread standards
- Allows compatibility with North American plumbing connections
- Prevents leaks caused by mismatched fittings
- Essential for servicing or installing legacy Miele units
Compatibility
- Older Miele dishwashers with external Waterproof System (WPS)
- Applications requiring 3/4" NPTF to 9/16" UNEF conversion
Product Details
- Product Type: Reducer / Adapter Fitting
- Thread Conversion: 3/4" NPTF → 9/16" UNEF
- Application: Water inlet connection
- Brand: Miele (Genuine OEM)
Important: This is a specialized fitting used primarily for legacy Miele installations. Always verify thread compatibility before ordering.
Model: Reducer Piece 3/4 NPTF – 9/16 UNEF
Part Number: 5543291
All Things Clean is an authorized Miele dealer offering genuine replacement parts and accessories.
Final Sale
Shipping/Delivery/Pickup
Shipping within US
Orders normally ship within 12-24 hours after submission. However, due to abnormally high order volume, our processing times can reach up to 2-3 business days. Our daily shipping cutoff time is 3pm PST. Order placed after this cutoff will ship the following business day.
We primarily use UPS ground for most shipments, however depending on the product size, weight, and shape we may choose to ship via USPS. If you have an urgent need for expediting shipping rates and times please call us directly at 408-354-4460. We are happy to accommodate.
Store/Curbside Pickup
All orders placed for Curbside pickup at our location will be ready within 1 hour of order placement.
Orders placed after 5pm weekdays and 3pm Saturdays may not be ready until the following business day. You will receive a text and or phone call to let you know when your order is ready. Customers may come into the store to pickup or simply reply to the text message to have your items delivered directly to your car outside. We are located at 457 N. Santa Cruz Ave in Los Gatos.
Designated parking stalls are clearly marked in front of our store for customers.
Local Delivery
Local deliveries will occur typically within 1 to 2 business days, we
will contact you after your order is placed. Local deliveries are
restricted by zip codes, if your address falls within the local delivery zone it will be an available option at checkout to select. If not
please choose the shipping or store/curbside pickup option.
All Things Clean provides true local delivery by one of our staff
experts to hand deliver your products directly to your doorstep. We also now offer unboxing, assembly, and in home product training to get the most out of your purchase and lessen the learning curve. These extra white glove services may be requested and purchased in advance by contacting us directly at 408-354-4460. Please have your order number ready when calling or texting. Rates charged vary by product.