Thetford 98303 Vacuum Breaker (Superseded to T-PF.P143) – Tecma Silence Plus 2G

Product Overview

The Thetford 98303 Vacuum Breaker, now superseded by T-PF.P143, is a genuine OEM replacement designed specifically for Tecma Silence Plus 2G RV and marine toilets. This component plays a critical role in preventing backflow and protecting your fresh water supply, ensuring safe and proper toilet operation.

If your system is experiencing water backflow issues, irregular flushing, or leaks near the vacuum breaker, this updated replacement restores proper function and reliability.

Key Features & Benefits

• OEM Thetford Replacement – Direct replacement for part #98303
• Updated Part Number – Now supplied as T-PF.P143
• Prevents Backflow Contamination – Protects fresh water system
• Designed for Tecma Systems – Engineered specifically for Silence Plus 2G toilets
• Durable Construction – Built for RV and marine environments
• Compact & Easy to Install – Direct-fit replacement design

Compatibility

Specifically designed for:

• Thetford Tecma Silence Plus 2G Toilets

Replaces:

• Thetford 98303 Vacuum Breaker
• Superseded by: T-PF.P143

⚠️ Important: This part is not universal. It is designed for Tecma electric toilet systems. Always verify your model before ordering.

What’s Included

• (1) Vacuum Breaker Assembly – T-PF.P143 (replacement for 98303)

Common Problems This Fixes

• Water siphoning or backflow issues
• Leaks around the vacuum breaker
• Inconsistent or improper flushing
• System not maintaining proper water separation

Installation Overview

1. Turn off water supply and power to the toilet
2. Locate existing vacuum breaker in the water line
3. Disconnect water lines from the old unit
4. Install new vacuum breaker (T-PF.P143)
5. Reconnect lines and test for leaks and proper operation

Why This Part Matters

The vacuum breaker is a critical safety component in Tecma toilet systems. A failing unit can allow contaminated water to flow backward into your fresh water system. Replacing it with the updated T-PF.P143 ensures safe operation and compliance with proper plumbing standards.

FAQs

Q: Is T-PF.P143 the same as 98303?
A: Yes — T-PF.P143 is the direct replacement for the discontinued 98303 vacuum breaker.

Q: What does a vacuum breaker do?
A: It prevents backflow, ensuring wastewater cannot contaminate your clean water supply.

Q: Will this fit non-Tecma toilets?
A: No — this part is specifically designed for Tecma Silence Plus 2G systems.

Q: How do I know if mine is bad?
A: Signs include leaking, unusual flushing behavior, or backflow-related issues.