Dorman 911-643 secondary air injection check valve for the 2007-2021 Toyota Tundra V8 5.7L and other vehicles passes secondary air toward the exhaust in one direction and blocks exhaust flow back. It is a direct replacement for the original valve.
- Dorman OE Solutions line
- Cast aluminum construction for durability and long service life
- Inlet size 0.83 in and outlet size 0.72 in
- Made to restore valve function after the original valve fails
Quick facts
- Part: Dorman 911-643 secondary air injection check valve
- Fits: 2007-2021 Toyota Tundra V8 5.7L and other vehicles
- Material: Cast aluminum
- Condition: New
A check engine light with a secondary air injection code can mean this valve is worn, though the air pump or a cracked air hose can be behind the same code, so find the cause before replacing anything.
Fits
This valve is listed for a wide range of Toyota and Lexus models, led by the 2008-2022 Toyota Sequoia V8 5.7L and the 2013-2021 Toyota Land Cruiser V8 5.7L, and each takes one valve. If your vehicle is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Inlet size: 0.83 in
- Outlet size: 0.72 in
- Quantity per vehicle: 1
Build and materials
- Material: cast aluminum
- Condition: new
- Country of origin: China
In the box
One secondary air injection check valve.
Interchange: 2570138060 · 2570138061 · 2570138062 · 2570138063 · 2570138064
This part cross-references / interchanges with the following part numbers:
2570138060, 2570138061, 2570138062, 2570138063, 2570138064
Frequently Asked Questions
Does the Dorman 911-643 fit the 2007-2021 Toyota Tundra V8 5.7L?
Yes, Dorman 911-643 is listed for the 2007-2021 Toyota Tundra V8 5.7L, which takes one valve; other Toyota and Lexus models are in the "Vehicles it fits" section.
What is in the package with the Dorman 911-643?
The package holds one secondary air injection check valve. Dorman 911-643 is sold as a single valve.
Is this Dorman secondary air injection check valve made of cast aluminum?
Yes, this secondary air injection check valve is made of cast aluminum, and its country of origin is China.
How big are the inlet and outlet on the Dorman 911-643 secondary air injection check valve?
The inlet is 0.83 in and the outlet is 0.72 in.
Is 2570138060 an interchange number for this valve?
Yes, 2570138060 is one of the numbers Dorman 911-643 replaces, along with 2570138061, 2570138062, 2570138063 and 2570138064.
