Heating and Cooling› Thermostats, Housings and Fillers

Thetford

KIT VACUUM BREAKER 2G RV

$37.38

SKU: T00Z 98303

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Thetford 98303 Vacuum Breaker Kit is a genuine replacement component designed for Thetford RV toilets. This vacuum breaker prevents backflow and siphoning in your RV toilet's water system, ensuring proper operation and protecting your fresh water supply from contamination.

Key features include its role in preventing vacuum conditions that can cause improper flushing, its direct replacement nature for worn or damaged breakers, and that it is designed for 2-gallon flush systems. The complete kit includes all necessary components for installation.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandThetford
Part NumberT00Z 98303

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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