A genuine OEM 12-volt electric flush pump for Thetford C250 / C250CWE cassette toilets. This submersible pump sends water into the bowl when you flush, restoring or replacing the flush function when the original pump has failed or is weak.

OEM Part Number: 50712

Power / Voltage: 12V DC

Type: Submersible water / flush pump, suitable for swivel toilets

Kit Includes:

• 1 × 12V submersible pump (Thetford 50712)

• Wiring leads / connector ends

• Installation instructions

Compatibility

Suited for Thetford C250 / C250CWE cassette toilets

Also fits “SC-250 / C-250 swivel cassette style” models in many listings

Frequently Asked Questions 

Q: What does this pump do?
It draws fresh water (from your flush water supply) and pushes it into the toilet bowl when you press the flush handle or button—making the flush action strong and effective.

Q: Is installation difficult?
Moderate skill required. Steps generally:

1. Disconnect the 12V supply

2. Access the pump housing (usually inside the cassette housing)

3. Remove the old pump (disconnect hoses, wiring)

4. Mount the new pump, reconnect hoses & wiring

5. Test flush and check for leaks

Q: Does this pump sit inside the toilet or outside?
It’s a submersible pump that sits inside the flush-water reservoir/tank of the toilet. It is not mounted outside or separately.

Q: Will it work if my battery is weak?
No. A weak 12V battery or poor wiring connection will cause the pump to run weakly or not at all. Always check your power supply before replacing the pump.