Thetford 01639 (Superseded by 50125) Sewer Hose Connector – 3" Bayonet Locking Ring, White

Product Overview

The Thetford 01639 Sewer Hose Connector (now superseded by 50125) is a durable replacement bayonet locking ring designed to securely connect your RV’s 3-inch sewer hose to the holding tank outlet. Built for a tight, leak-resistant fit, this connector ensures reliable waste transfer and helps prevent messy disconnects during dumping.

Key Features & Benefits

• Direct Replacement: Supersedes Thetford 01639 with updated part 50125
• Secure Bayonet Connection: Locks firmly onto standard RV waste outlets
• Universal Fit: Designed for most 3-inch RV sewer hoses
• Leak-Resistant Seal: Helps prevent spills and odor escape
• Durable Construction: Built from heavy-duty plastic for long-term use
• Easy Installation: Simple twist-on design—no special tools required

Specifications

• Part Number: 01639 (Superseded by 50125)
• Product Type: Sewer Hose Connector / Locking Ring
• Connection Type: Bayonet
• Hose Compatibility: 3 Inch Sewer Hose
• Inside Diameter: 3 Inch
• Outside Diameter: 4 Inch
• Color: White
• Material: Heavy-Duty Plastic

Fits These Applications

• Standard RV sewer outlets with bayonet fittings
• Compatible with most 3-inch RV sewer hoses and waste systems
• Works with a wide range of RV brands and holding tank setups

Common Issues This Part Solves

• Loose or worn-out sewer hose connections
• Leaks at the RV dump valve connection
• Difficulty securing sewer hose during dumping
• Damaged or cracked bayonet rings

What’s Included

• (1) Thetford 50125 Sewer Hose Connector (Replacement for 01639)

Installation Overview

1. Remove the damaged or worn locking ring from your sewer hose
2. Align the new bayonet connector with the hose fitting
3. Secure the connector in place (depending on hose style)
4. Twist onto RV holding tank outlet until locked

FAQs

Q: Is this the same as Thetford 01639?
A: Yes—50125 is the direct replacement for the discontinued 01639 part.

Q: Will this fit my RV sewer hose?
A: It fits most standard 3-inch RV sewer hoses with bayonet-style connections.

Q: Does this include the full hose assembly?
A: No, this is just the locking ring/connector, not a complete hose.

Q: Is this compatible with Dometic or Valterra systems?
A: Yes, as long as your system uses a standard 3-inch bayonet fitting, it should work.

Why Choose Thetford?

Thetford is a trusted name in RV sanitation, known for reliable, easy-to-install components that keep your waste system functioning properly. Their connectors and fittings are designed to handle real-world RV use with durability and consistency.