---
id: faq-0076
title: "How do genuine OEM parts compare to aftermarket parts?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlecdjrchesterton.com"
tags: ["parts", "quality", "maintenance"]
questions:
  - "Should I use OEM or aftermarket parts?"
  - "What's the difference between OEM and aftermarket?"
  - "Are genuine parts worth the cost?"
related: [service-quality, warranty, parts-availability]
dealer: Castle CDJR of Chesterton
---

OEM (Original Equipment Manufacturer) parts are built to your vehicle's exact specifications and designed by the engineers who built your Jeep, RAM, Dodge, or Chrysler. Aftermarket parts are made by third-party manufacturers and vary widely in quality and fit. Genuine OEM parts ensure proper fit, performance, durability, and warranty protection-they're engineered specifically for your model.

While OEM parts may cost more upfront, they last longer and prevent costly comebacks from poor fit or premature failure. They also protect your vehicle's warranty.

Castle CDJR of Chesterton stocks genuine OEM parts and accessories for all new Jeep, RAM, Dodge, and Chrysler models. Our Parts department can help you find exactly what you need. Call (219) 250-9487 for parts availability and pricing.