Thetford 31857 (Superseded by 50017) Flush Tube and Nozzle Assembly – Aqua-Magic® VI, White - SPECIAL ORDER

Product Overview

The Thetford 31857 Flush Tube and Nozzle Assembly (now superseded by 50017) is a direct OEM replacement component designed specifically for Thetford Aqua-Magic® VI RV toilets. This assembly restores proper bowl rinsing and flush water distribution for reliable toilet performance.

Ideal for replacing cracked, clogged, leaking, or worn flush components, this replacement assembly helps maintain strong and even water flow during flushing.

Special Order Item

• Estimated Lead Time: 2–3 Weeks
• Return Policy: This is a special order item and cannot be returned once ordered.

Key Features & Benefits

• Direct Replacement: Supersedes Thetford 31857 with updated part 50017
• Designed for Aqua-Magic® VI Toilets: OEM-compatible fit and function
• Restores Proper Bowl Rinse: Helps improve flushing performance and water coverage
• OEM Construction: Built to original manufacturer specifications
• Durable Materials: Designed for long-term RV use
• White Finish: Matches original toilet components

Specifications

• Part Number: 31857 (Superseded by 50017)
• Product Type: Flush Tube and Nozzle Assembly
• Toilet Compatibility: Aqua-Magic® VI
• Color: White
• Application: RV Toilet Flush System

Fits These Models

• Thetford Aqua-Magic® VI High Profile Toilets
• Thetford Aqua-Magic® VI Low Profile Toilets

Common Issues This Part Solves

• Weak or uneven flush spray
• Poor bowl rinsing performance
• Cracked or leaking flush tube
• Clogged or damaged flush nozzle

What’s Included

• (1) Thetford 50017 Flush Tube and Nozzle Assembly (Replacement for 31857)

Installation Overview

1. Turn off water supply to the toilet
2. Remove the toilet if necessary for access
3. Remove the old flush tube and nozzle assembly
4. Install the new replacement assembly
5. Restore water supply and test flush operation

FAQs

Q: Is Thetford 50017 the same as 31857?
A: Yes—50017 is the direct replacement for the discontinued 31857.

Q: Which toilets does this fit?
A: It fits Thetford Aqua-Magic® VI toilets.

Q: What does the flush tube and nozzle do?
A: It directs flush water into the bowl for proper rinsing and flushing performance.

Q: What are signs this assembly needs replacement?
A: Common symptoms include weak flushing, uneven spray, leaks, or clogged water flow.

Why Choose Thetford?

Thetford is a trusted leader in RV sanitation systems, offering OEM replacement parts designed for dependable performance and long-lasting compatibility.