Description
Product Overview
The Flynsu secondary air injection check valve is constructed from high‑grade stainless steel, providing corrosion resistance and a long service life. Designed to match OEM part numbers (2571050032, 2571050041, etc.), it features a dual‑port configuration with NPT outlet and national pipe tapered inlet connections. Certified to meet EPA standards, this valve ensures proper air flow to the emission system, helping your vehicle pass inspections.
Usage
This valve is a direct replacement for 2007‑2009 Toyota Sequoia and Tundra 4.7L V8 engines. Install it during routine emission system service or when the original valve shows signs of wear. Ideal for mechanics and DIY enthusiasts seeking a reliable, brand‑matched component that restores optimal engine performance.

Why Choose Us
Flynsu combines precision engineering with rigorous quality control, delivering a part that matches or exceeds OEM specifications. The stainless steel body resists rust and heat, while the EPA‑approved design guarantees compliance with emission regulations. Backed by a 12‑month warranty, you can trust its durability and performance.
Key Features
- Stainless steel construction for superior corrosion resistance
- Dual‑port design ensures consistent air flow to the emission system
- EPA‑approved, meeting strict emission standards
- Direct fit for 2007‑2009 Toyota Sequoia and Tundra 4.7L V8 models
- 12‑month warranty provides added confidence
FAQ
Is this valve compatible with both Sequoia and Tundra models?
Yes, it fits 2007‑2009 Toyota Sequoia and Tundra equipped with the 4.7L V8 engine.
Do I need any special tools for installation?
Standard hand tools for NPT connections are sufficient; no specialized equipment is required.
Will this part affect my vehicle’s emissions test?
Because the valve is EPA‑approved and matches OEM specifications, it helps your vehicle meet emissions requirements.
What is the warranty period?
The product comes with a 12‑month warranty covering manufacturing defects.
Can I use this valve on other vehicle makes?
It is specifically engineered for the listed Toyota models; using it on other makes may result in fitment issues.





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