Thetford Toilet Flush Pump – 12 Volt DC - Replacement for Cassette® C2 Electric, C402C & C403L Toilets - 29027

Thetford Toilet Flush Pump – 12 Volt DC - Replacement for Cassette® C2 Electric, C402C & C403L Permanent Toilets - 29027

The Thetford Toilet Flush Pump is an OEM-correct 12-volt DC replacement pump designed for Thetford Cassette® C2 Electric, C402C, and C403L permanent toilets. This pump delivers the water pressure required for consistent, reliable flushing in electric cassette toilet systems.

Ideal for addressing weak flush performance, intermittent operation, or a completely non-functional flush, replacing the pump restores proper toilet operation without the need to replace the entire unit.

Key Features & Benefits

• OEM-Correct Replacement – Manufactured to Thetford specifications
• 12 Volt DC Operation – Works with standard RV electrical systems
• Restores Flush Performance – Provides reliable water delivery during flush cycles
• Designed for Electric Cassette Toilets – Compatible with pump-driven flush systems
• Durable Construction – Built for RV use and frequent operation
• Cost-Effective Repair – Fixes flushing issues without replacing the toilet

Fits / Compatible With

• Thetford Cassette® C2 Electric Toilet
• Thetford Cassette® C402C Permanent Toilet
• Thetford Cassette® C403L Permanent Toilet

Not compatible with manual-flush cassette toilets, Porta Potti®, Aqua-Magic®, or Tecma® models.

What’s Included

• (1) Thetford Toilet Flush Pump – 12V DC

Specifications

• Voltage: 12 Volt DC
• Pump Type: Flush water pump
• Toilet Type: Electric cassette toilet
• Compatible Series: Cassette® C2 Electric, C402C, C403L
• Brand: Thetford

Common Issues This Part Solves

• Toilet will not flush
• Weak or inconsistent flush
• Pump runs but does not move water
• Intermittent electric flush operation
• Aging or failed flush pump motor

Installation Overview

1. Disconnect RV power supply
2. Access the cassette toilet pump compartment
3. Remove the failed pump
4. Install replacement pump and reconnect wiring
5. Restore power and test flush operation

Basic electrical knowledge recommended. Always disconnect power before installation.

Frequently Asked Questions (FAQ)

Is this an OEM Thetford replacement pump?

Yes. This flush pump is manufactured to Thetford OEM specifications for proper fit and reliable performance.

Which toilets does this pump fit?

It fits Thetford Cassette® C2 Electric, C402C, and C403L permanent toilets.

Is this pump for manual cassette toilets?

No. This pump is designed only for electric flush cassette toilets.

What voltage does this pump require?

It operates on 12 Volt DC.

Will replacing this pump fix all flush issues?

It will fix issues caused by a failed or weak pump. If problems persist, inspect wiring, control panels, or switches.