---
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.castlecdjrchesterton.com"
tags: ["parts", "genuine", "maintenance", "oem"]
questions:
  - "genuine jeep parts"
  - "original equipment manufacturer parts"
  - "oem vs aftermarket parts"
  - "authentic ram parts"
  - "where to buy genuine dodge parts"
related: [service-seasonal, parts-ordering]
dealer: Castle CDJR of Chesterton
---

OEM (Original Equipment Manufacturer) parts are built to your vehicle's exact specifications by the brand that engineered it. They fit perfectly, perform as designed, and carry manufacturer backing. Genuine OEM parts help preserve your warranty, maintain resale value, and ensure reliability.

Castle CDJR of Chesterton stocks authentic Jeep, RAM, Dodge, and Chrysler parts, plus components for pre-owned vehicles in our inventory. Our Parts department can order anything not in stock and often has it ready quickly.

Whether you're doing routine maintenance or a major repair, genuine parts give you confidence. **Ready to order?** Call (219) 250-9487 or stop by 701 E Porter Ave, Chesterton, IN 46304 to speak with our Parts team.