

GM Genuine Parts 179-1266 Power Brake Booster Vacuum Check Valve Kit
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Description
xOverview
The GM Genuine Parts 179-1266 Power Brake Booster Vacuum Check Valve is a one-way valve designed to keep the brake booster’s vacuum stable. When the engine is off or if the vacuum hose leaks, this valve prevents air from entering the booster, helping preserve pedal feel and brake assist.
OE Quality and Vehicle-Specific Fit
As a GM-recommended replacement, this valve is manufactured to GM original equipment specifications for fit, form, and function. It reflects the same quality, reliability, and durability you expect from GM OE parts.
- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured with GM original equipment specification for fit, form, and function
- Country of origin: China
- Fit type: Vehicle Specific
Practical Advantages in Daily Use
In typical driving, the valve helps maintain consistent brake assist, contributing to a confident pedal feel during starts, stops, and errands. Its one-way design reduces the risk of unintended air inflow, supporting predictable braking behavior when needed most.
What to Expect with GM OE Grade Components
Designed to match factory performance, the valve integrates with the brake system as intended by GM. The compact part is engineered to align with the engine bay environment and hose routing, simplifying replacement when restoring original operation.
- Quality, reliability, and durability of GM OE
- Country of origin: China
- Fit type: Vehicle Specific
Note: This part is a GM-recommended replacement for your vehicle’s original components. Always verify compatibility with your GM model before purchasing. While no single part guarantees a specific outcome, choosing OE-grade GM Genuine Parts aligns with the design intent of your braking system and supports long-term reliability.
FAQ
Q: What does the GM Genuine Parts 179-1266 valve do?
A: It acts as a one-way valve to preserve brake booster vacuum when the engine is off or there's a vacuum hose leak.
Q: Is this replacement part compatible with GM vehicles?
A: Yes, it is GM-recommended OE-quality with a vehicle-specific fit and function.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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