---
id: department-0014
title: "What are genuine OEM parts and why should I use them?"
category: department
subtopic: parts-oem
page_type: department
source_url: "https://www.castlechevymchenry.com"
tags: ["parts", "genuine", "maintenance"]
questions:
  - "What does OEM mean?"
  - "Should I buy genuine Chevrolet parts?"
  - "Are original parts worth the cost?"
  - "Where do I get factory parts for my vehicle?"
related: [parts-order, service-seasonal]
dealer: Castle Chevrolet McHenry
---

OEM stands for Original Equipment Manufacturer-these are genuine Chevrolet parts built to the exact same specs your vehicle left the factory with. They fit perfectly, perform reliably, and come with confidence because they're made by Chevrolet engineers.

Using genuine parts preserves your warranty, maintains resale value, and ensures your Chevrolet runs as designed. Whether it's an engine component, brake pad, filter, or electrical part, OEM quality means fewer surprises down the road.

Castle Chevrolet McHenry's Parts department stocks genuine Chevrolet components and can order anything you need. **Call (779) 600-2956** to find the right part, or swing by our parts counter at **1107 State Route 31, Mchenry, IL** to browse and order.