RLP Blend Door Actuator for Ford & Lincoln Main Air Inlet — 2011-2019 Fit, Reinforced Gears & Plug-and-Play

RLP 604-234 Blend Door Actuator is a direct-fit HVAC replacement that restores temperature and airflow control for compatible Ford and Lincoln vehicles.

If your vehicle’s climate control is making noise, delivering uneven airflow, or failing to change temperature zones, the blend door actuator is often the cause. RLP engineered this actuator with reinforced gears and an upgraded circuit assembly so it matches original fitment while aiming for longer life and reliable operation. It replaces factory part numbers including AA5Z-19E616-C and YH-1779 and fits a broad range of Ford and Lincoln models built between 2008 and 2019.

How will this actuator fix uneven cabin temperature?

The blend door actuator moves the internal HVAC flaps that mix warm and cool air. Replacing a malfunctioning actuator restores precise flap positioning so the system can produce consistent temperatures across vents.

• Direct replacement for main air inlet/temperature positions.
• Replaces OE numbers 604-234, AA5Z-19E616-C, AA5Z19E616B/C, YH-1779.
• Improved motor and gear strength for reliable flap movement.

Which cars and positions does this part fit?

This RLP actuator is compatible with many Ford and Lincoln vehicles; check the model year and position before ordering. It works in left and right main temperature/blend locations and replaces factory blend door actuators used in these cabins.

• 2011–2019 Ford Explorer and Flex; 2011–2019 Ford Taurus; 2013–2019 Police Interceptor Sedan and Utility.
• 2008–2009 Ford Taurus X; 2011–2016 Lincoln MKS and 2011–2019 Lincoln MKT.
• Designed for main air inlet and temperature control positions.

How easy is installation and what should I do after fitting it?

Installation is straightforward for technicians and DIYers familiar with HVAC panels. The actuator is a plug-and-play replacement that matches OEM mounting points, but recalibration of the HVAC control system is recommended after installation.

• Fits and functions like the original equipment part for specified vehicles.
• Simple electrical connector and screw mounting—no major modifications required.
• Recalibrate the HVAC system following manufacturer procedures to ensure accurate flap positions.

What durability and support does RLP provide?

RLP builds this actuator with a durable plastic housing and a reinforced electric motor and circuit board, aiming to reduce premature gear wear and circuit failure. The product includes a 12-month replacement warranty and customer support via Amazon messages.

• Durable housing and heavy-duty gears for longer life.
• High-performance chip and motor for consistent operation.
• 12-month free replacement and responsive customer service.

Who is this for: This RLP 604-234 blend door actuator is intended for owners and mechanics working on compatible Ford and Lincoln models who need a dependable, direct-fit replacement to resolve HVAC noise, inconsistent airflow, or temperature blending issues. Choose this part if you want OE-equivalent fit with upgraded internal components and a backed warranty for peace of mind.