---
id: department-0014
title: "What are genuine OEM parts, and why should I use them?"
category: department
subtopic: parts-oem-overview
page_type: department
source_url: "https://www.castlesubarumchenry.com"
tags: ["parts", "maintenance", "genuine"]
questions:
  - "what is OEM"
  - "Subaru genuine parts"
  - "aftermarket vs genuine"
  - "original equipment manufacturer parts"
related: [parts-ordering, service-seasonal]
dealer: Castle Subaru McHenry
---

OEM stands for Original Equipment Manufacturer-in this case, Subaru-engineered and tested parts made to exact factory specs. They fit perfectly, perform as designed, and help preserve your vehicle's warranty and resale value.

Unlike aftermarket alternatives, genuine Subaru parts carry the same reliability engineering your car was built with. Whether you're replacing brake pads, filters, belts, or electrical components, authentic parts mean fewer surprises and longer life between services.

Castle Subaru McHenry stocks genuine Subaru parts and can order anything you need quickly. Our Parts team is happy to help you find the right component and explain the difference. **Call (779) 601-0797** or stop by to browse our current inventory-we're here to make sure your Subaru gets what it deserves.