Vacuum Solenoid Valve, Compatible with Ford F150 2015-2020

This SsllZdq vacuum solenoid valve and check valve combo replaces OEM part numbers including 7L1Z-9H465-B and FL3Z-3A788-B to restore vacuum control for Ford F150 (2015–2020), Ford Expedition (2018+), and Lincoln Navigator (2018+).

When vacuum lines, check valves or the solenoid valve in the AWD/4WD locking-hub or HVAC vacuum system fail, vehicles can exhibit poor hub engagement or vacuum leaks. This replacement kit is molded to match factory specifications and offers a direct-fit option that restores proper vacuum routing without custom modification. Parts are manufactured from durable plastic, rubber, and metal components designed for high-temperature engine-bay environments.

How does this kit match my vehicle’s original parts?

The SsllZdq kit is built to OEM-equivalent dimensions and fits the same mounting points and vacuum line connections as the original components. It replaces multiple factory part numbers so you can swap it in without cutting or re-routing hoses.

• Direct replacements for part numbers: 7L1Z-9H465-B and FL3Z-3A788-B family
• Designed to mate with factory vacuum hoses and electrical connectors
• No special tools required for a like-for-like installation

What materials and durability can I expect under the hood?

Critical components are formed from high-temperature plastic, rubber seals, and metal contacts where needed to maintain vacuum integrity and electrical reliability. The construction focuses on resistance to heat, oil vapors, and vibration common in engine compartments.

• Plastic and rubber bodies resist cracking and vacuum leaks
• Metal elements for solenoid terminals and internal valve parts
• Manufactured for long service life under typical driving conditions

How easy is installation and what tools are required?

The kit installs using the vehicle’s original mounting points and connectors, so no major modifications are needed. Most installations require only basic hand tools — pliers, a ratchet, and screwdrivers — and can be completed in a short garage session.

• Plug-and-play electrical connectors match factory harnesses
• Hoses slide onto the valve ports and secure with factory clips
• Typical installation time: under an hour for an experienced DIYer

Will this fix common symptoms like hub engagement or vacuum loss?

Replacing a worn or cracked check valve and solenoid valve can eliminate vacuum leaks and restore consistent vacuum routing to hubs or vacuum-actuated systems. While not all symptoms are caused by these parts, addressing defective valves is a common and cost-effective first step.

• Helps resolve intermittent hub engagement or failure to lock
• Reduces vacuum leaks that can affect accessory operation
• Pairs well with routine inspection of vacuum lines and connectors

Who is this for? Technicians, home mechanics, and fleet owners maintaining 2015–2020 Ford F150s or 2018 and newer Expeditions and Lincoln Navigators who need a factory-fit replacement for vacuum control components will find this SsllZdq kit useful. It’s intended for anyone looking to replace failed solenoid or check valves with compatible parts that match original specifications without extensive modification.