Karcher Union Nut - Yellow

Is the union nut on your Karcher Puzzi 30/4 spray extraction cleaner cracked, stripped, or failing to hold the hose securely? This small but vital component connects your spray/suction hose to the machine. When it fails, air and water can leak, reducing suction and spray pressure, and making deep cleaning far less effective. This genuine Karcher replacement union nut in yellow (Part No. 6.394-873.0 / 63948730) is the simple, cost-effective solution to restore a tight, reliable connection.

• Genuine Karcher Quality & Perfect Fit: This is an authentic Karcher replacement part, engineered for a precise fit and reliable performance. It’s not a flimsy compatible alternative – it’s durable, long-lasting, and designed to match your machine.

• Restores a Secure, Leak-Free Connection: A worn or damaged union nut can allow air and water to escape, reducing suction and spray pressure. This genuine replacement restores the vital watertight and airtight seal for maximum cleaning performance.

• Maintains Suction & Spray Performance: By ensuring a tight connection between the hose and machine, this union nut helps maintain the strong suction and consistent spray you need for effective carpet and upholstery cleaning.

• Easy to Fit: Designed as a direct-fit replacement, it installs quickly and easily, getting your cleaner back to full working order in minutes.

• Cost-Effective Repair: Why pay for a whole new machine when a genuine replacement union nut is all you need? This part offers exceptional value compared to the cost of a new machine.

Compatibility – Please Check Before Ordering

This genuine Karcher union nut is compatible with the following Karcher spray extraction cleaner models:

This union nut is used in combination with the Karcher hose coupling (Part No. 4.446-000.0) and the spray/suction hose (Part No. 6.394-874.0). Please note that the coupling and hose are sold separately.

Genuine Karcher Part Numbers: 6.394-873.0, 63948730
SKU: KAR63948730
Barcode: 4054278017785

Please check your machine’s model number before ordering to ensure compatibility. If your model is not listed, please contact us to confirm fitment.