Dorman 911-644 secondary air injection control valve for the 2005-2009 Toyota 4Runner V8 4.7L and other vehicles controls air flow in the secondary air injection system. It replaces a valve that has failed.
- Dorman OE Solutions product line
- Made to restore valve function after the original valve fails
- Aluminum and plastic construction
- Two ports, each with a 0.6 in inside diameter
- Two mounting holes, each 0.34 in in diameter
Quick facts
- Part: Dorman 911-644 secondary air injection control valve
- Fits: 2005-2009 Toyota 4Runner V8 4.7L and other vehicles
- Material: Aluminum and Plastic
- Condition: New
A check engine light tied to the secondary air system, or a failed emissions check, can mean this valve has worn out. Those signs alone do not prove the valve is the problem, because a weak air pump can produce them too.
Fits
This valve is listed for a wide range of Toyota and Lexus models, led by the 2005-2009 Toyota 4Runner V8 4.7L, the 2005-2006 Toyota Tundra V8 4.7L and the 2005-2007 Toyota Sequoia V8 4.7L. If your own truck or SUV is not named here, look it up in the "Vehicles it fits" section. The 2005-2009 Toyota 4Runner V8 4.7L takes one valve.
Specifications
Fit and size
- Quantity per vehicle: 1
- Length: 6 in
- Maximum diameter: 0.76 in
- Port 1 inside diameter: 0.6 in
- Port 2 inside diameter: 0.6 in
- Port quantity: 2
- Mounting hole diameter: 0.34 in
- Mounting hole quantity: 2
Build and materials
- Material: aluminum and plastic
- Terminal type: blade, male
- Hose connector quantity: 2
- Condition: New
- Country of origin: China
In the box
One secondary air injection control valve. Mounting hardware is not included, so plan on new fasteners.
Interchange: EC6057 · DV178 · 2571050020 · 2571050021 · 2571050022
This part cross-references / interchanges with the following part numbers:
EC6057, DV178, 2571050020, 2571050021, 2571050022
Frequently Asked Questions
Does the Dorman 911-644 secondary air injection control valve fit the 2005-2009 Toyota 4Runner V8 4.7L?
Yes. Dorman 911-644 is listed for the 2005-2009 Toyota 4Runner V8 4.7L, and that vehicle takes one valve.
Do I need to buy fasteners separately for this Dorman secondary air injection control valve?
Yes. The box holds one secondary air injection control valve and no mounting hardware, so have new fasteners ready before you start.
What size are the ports on the Dorman 911-644 valve?
Both ports have a 0.6 in inside diameter. The valve is 6 in long, 0.76 in at its widest, and has two 0.34 in mounting holes.
How can I tell if a secondary air injection control valve has gone bad?
A check engine light for the secondary air system can be one sign. With the engine off and cool, you can look for a cracked housing or damaged connector; a shop can test the valve itself.
Does Dorman 911-644 replace part number 2571050020?
Yes. 2571050020 is one of the numbers cross-referenced to Dorman 911-644. The full cross-reference list is on the Interchange line of this page.
