About Us

Authentic GM OEM Parts from Riverhead, NY

GM Parts Warehouse is your trusted source for authentic OEM GM parts and accessories. Part of the Eagle Auto Group family, we've built our reputation on one simple promise: genuine parts, verified fitment, and honest service.

Why Choose GM Parts Warehouse?

100% Authentic OEM Parts

Every part we sell is genuine GM OEM—not aftermarket. We source directly from GM authorized distributors to guarantee authenticity. You get the exact quality and fit that GM engineers designed for your vehicle.

VIN-Verified Fitment Guarantee

Before every order ships, our parts experts verify fitment against your VIN number. If a part won't work, we tell you upfront. That's how you get the right part the first time.

Local Riverhead Fulfillment

Based right here in Riverhead, NY, we process and ship orders fast. We know most parts take longer than expected in this industry, which is why we keep our top-sellers in stock and ship from our local warehouse. When parts are available, they leave our dock quickly.

Expert Support You Can Count On

Have questions about fitment, part compatibility, or installation? Our in-house parts experts are ready to help. We provide part quotes, order assistance, and honest recommendations.

Complete Catalog for All GM Vehicles

From Chevy Silverado's to GMC Sierras, Cadillacs to Buicks, we stock OEM parts for all GM models. Air filters and spark plugs to brake systems and suspension components. If it's GM and it's OEM, we can find it.

Our Commitment

When you order from GM Parts Warehouse, here's what you get:

✓ Genuine OEM parts backed by General Motors
✓ VIN-verified fitment before every shipment
✓ Fast responses to your questions and part requests
✓ Local Riverhead fulfillment
✓ Minimum 12-month warranty on all parts
✓ Nationwide shipping to your door