Vacuum Line Fitting Needed To Install The Demco Stay-In-Play In A 2020 Ford F-150
Published 03/23/2022 >
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Question:
Will the Demco 6257 vacuum connection t fitting work on a 2020 ford f150 with the 3.5 ecoboost engine? I am installing a demco stay and play braking system.
asked by: John M
Expert Reply:
Demco does list in the installation manual for the Demco Stay-IN-Play DUO Supplemental Braking System # DM86VR that newer Ford's may need an additional check valve due to Ford using two vacuum lines, but I called my contact at Demco and confirmed that you would only need just the Demco Vacuum Connection Tee Fitting # DM6257 that you referenced.
The line is going to be a hard plastic and the tee fitting will slide right over it for an easy installation. Page 16 of the manual will walk you through installing this fitting on hard plastic lines.

Product Page this Question was Asked From
Demco Stay-IN-Play Duo Braking System for RVs w/ Hydraulic Brakes - Wireless Monitor - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One-Time Setup
- Vehicle Battery
- Fixed System
- Power Assist Brake Compatible
- Hydraulic Brakes
- Wireless Display
- Demco
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