Description
Product Overview
The Ytrica Air Injection Emission Pump is engineered for precise vehicle-specific fit, featuring a robust alloy steel body combined with high‑temperature resistant plastic components. Its gerotor style design ensures efficient air injection into the exhaust system during cold starts, reducing harmful emissions. With an automatic operation mode and hose barb inlet connection, this replacement part meets OEM specifications and delivers long‑lasting performance under demanding engine conditions.
Usage
Designed for 2.4L engines in models such as the 2011‑2012 Buick LaCrosse, 2011‑2012 Buick Regal, 2012‑2015 Chevrolet Equinox, and comparable GMC vehicles, the pump integrates seamlessly into the emission control system. It operates during engine cold‑start periods, injecting fresh air to promote complete combustion and lower exhaust pollutants. Ideal for both professional mechanics and DIY enthusiasts seeking a reliable OEM‑grade replacement.

Why Choose Us
Ytrica combines rigorous engineering with premium materials to deliver a part that withstands corrosion and high temperatures. Each unit undergoes strict quality testing to ensure fitment accuracy and functional reliability. Our commitment to customer support includes a 30‑day return policy and responsive service for any installation queries.
Key Features
- Vehicle‑specific fit for multiple 2.4L models ensuring direct OEM compatibility
- Durable alloy steel construction with corrosion‑resistant plastic for longevity
- Automatic operation mode simplifies installation and reduces maintenance
- Gerotor design efficiently injects fresh air to cut cold‑start emissions
- Lightweight (2.7 lb) and compact dimensions for easy handling and fitment
FAQ
What vehicles are compatible with this pump?
The pump fits 2011‑2012 Buick LaCrosse, 2011‑2012 Buick Regal, 2012‑2015 Chevrolet Equinox, and equivalent GMC models with a 2.4L engine.
Is this a direct replacement for the OEM part?
Yes, it matches the manufacturer part number YJ1-12634 and meets all OEM specifications for performance and fit.
How does the pump reduce emissions?
During cold starts, the gerotor mechanism injects fresh air into the exhaust, promoting more complete combustion and lowering unburned hydrocarbons.
Can I install this part myself?
Installation is straightforward with basic hand tools; the clamp‑mount design and hose barb connection simplify the process for experienced DIYers.
What warranty does Ytrica provide?
The product includes a 30‑day return policy and is backed by Ytrica’s quality assurance for manufacturing defects.








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