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Dorman 911-645 Secondary Air Injection Check Valve Compatible with Select Lexus/Toyota Models

  • Based on 39 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Aug 5
Order within 19 hours and 54 minutes
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Features

  • Direct replacement - this secondary air injection check valve is designed to match the fit and function of the original valve on specified vehicles
  • Restores functionality - this valve is made to fit and fully restore part functionality after the original valve fails
  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Description

This secondary air injection check valve is designed to match the fit and function of the original valve on specified vehicles, and is engineered for durability and reliable performance. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Lexus GX470: 2004, 2005, 2006, 2007, 2008, 2009] - [Lexus LX470: 2005, 2006, 2007] - [Toyota 4Runner: 2005, 2006, 2007, 2008, 2009] - [Toyota Land Cruiser: 2005, 2006, 2007] - [Toyota Sequoia: 2005, 2006, 2007] - [Toyota Tundra: 2005, 2006]

Material: Metal


Brand: Dorman


Item dimensions L x W x H: 3.94 x 3.23 x 2.66 inches


Exterior Finish: Machined


Inlet Connection Type: National Pipe Tapered


Outlet Connection Type: NPT


Number of Ports: 2


Global Trade Identification Number: 20


Unit Count: 1.0 Count


Manufacturer: Dorman Products


Exterior Finish: Machined


Inlet Connection Type: National Pipe Tapered


Outlet Connection Type: NPT


Number of Ports: 2


Thread Type: NPT


Connector Type: Threaded


Thread Size: 1/8''


Valve Type: check valve


Item Dimensions: 3.94 x 3.23 x 2.66 inches


Size: Large


Item Weight: 0.74 Pounds


Material Type: Metal


Brand Name: Dorman


Model Number: 911-645


Global Trade Identification Number: 20


Manufacturer: Dorman Products


Manufacturer Warranty Description: Limited Lifetime Warranty


UPC: 885484498020


Manufacturer Part Number: 911-645


Number of Pieces: 1


Item Type Name: Dorman 911-645 Secondary Air Injection Check Valve


Unit Count: 1.0 Count


Included Components: 1 Secondary Air Injection Check Valve, Hardware, Gaskets


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Seem to work fine
You'll need a titan swivel 1/4" ratchet on some Toyotas to access the screws. It's bear to replace these valves.
Reviewed in the United States on December 18, 2024 by Lars

  • Not great
Item did not work and did not fix the problem, it’s defective and very difficult and time consuming to replace.
Reviewed in the United States on January 28, 2026 by JT

  • Perfect fit.
A little work to change so I replaced both sides while the intake was off. They were identical to ariginal parts.
Reviewed in the United States on May 27, 2022 by Robert G.

  • Do not purchase.
Part failed after one week.
Reviewed in the United States on February 23, 2026 by Placeholder

  • Product work slow shipping
Direct fit 06 sequioa shipping just slower then estimated with prime.
Reviewed in the United States on September 11, 2023 by Cecilia A.

  • It works
Pretty tough job to install, but it works good and looks just like the original on my Toyota Sequoia 4.7 liter
Reviewed in the United States on March 25, 2020 by carl p.

  • Love the quality of their product
Great product i would buy from them again 100%
Reviewed in the United States on January 21, 2020 by Pedro

  • what is wrong with Dorman
bad defective part don't last iI think Doman is no longer a good quality company
Reviewed in the United States on February 13, 2025 by michelangelo dabao

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