The Thetford SC260/C500 Electric Valve 90° (Part No. 90717) is an OEM-quality solenoid designed for use in Thetford C260, C500, and later C263 series cassette toilets. Its 90° outlet orientation allows for efficient water routing within confined installations, making it an essential element for reliable flush operation.

🔧 Core Features

• Genuine Thetford Product: Part 90717 is a direct replacement for the original valve used in models with serial numbers post‑E244P (from August 2013) .

• Robust Solenoid Mechanism: Electromagnetically actuated, it ensures consistent water flow during flush cycles, opening quickly with motorhome’s 12 V system and closing rapidly to prevent leaks.

• Compact 90° Design: Ideal for tight pipe runs within toilet cassettes or wall cavities, the elbow port optimises plumbing layout without compromising performance .

✅ Advantages

1. Smooth Functionality: Restores fast, consistent flushes without hesitation—critical for hygiene and user convenience.

2. Reliable Shut-Off: The solenoid returns to a tight seal when de-energised, preventing drips and reservoir overflows.

3. Easy Fit Swap: Designed for drop-in installation where existing valve fits—no tool re-alignment needed .

4. Widely Available: Stocked across UK and international suppliers, usually priced around £60–100.

🛠️ Installation & Maintenance

• Turn off water/12 V before fitting to avoid damage.

• From the service lid, remove the valve body, disconnect wiring, unscrew hose ends, and refit the new unit.

• Testing is straightforward—press the flush button and ensure crisp flow without leaks.

💡 Final Thoughts

For owners of Thetford C260/C500 systems built after mid-2013, the Thetford Electric Valve 90° is a key replacement part that makes a big impact on performance. The genuine valve delivers fast, clean flush action, reliable sealing, and painless installation—all while preserving the integrity of your original toilet design.

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