A genuine OEM exhaust insert for Thetford top/outside upper fridge vents. Designed to fit into the right side of the upper vent of 3-way absorption fridges, this white insert helps direct hot exhaust air out of the vent while keeping out pests and improving the vent sealing.

Proper ventilation is essential for 3-way fridges to expel hot air and maintain performance. Inserts like this one restore the correct airflow path without replacing the full vent assembly.

OEM Part Number: 620691111 (also referenced as 700-03743)

Kit Includes:

• 1 × white exhaust insert (fits into existing top vent frame)

Dimensions: approx. 142 mm × 68 mm (width × height) under the frame insert slot

Fits the right-hand insert side of the top outside vent (upper vent for exhaust side)

Frequently Asked Questions

Q: What does this exhaust insert do?
It slots into the top outside vent frame of Thetford 3-way fridges and helps exhaust hot air while protecting the opening. Without a proper insert, the vent may allow water ingress, insects, or reduce airflow efficiency.

Q: Does this come with the full vent frame?
No — this is insert only, for use within the existing vent frame.

Q: What tools or materials do I need to install?
Typically: remove screws holding upper vent grille (if applicable), slide out old insert, insert new one in correct orientation.