Genuine vs OEM vs Aftermarket Parts – What You Need to Know to Protect Your Warranty

Not All Parts Are Created Equal

If you’ve ever been told that only a dealership and genuine parts can keep your car’s warranty safe, you’re not alone. It’s a common misconception, and unfortunately, it’s often used to pressure drivers into expensive dealer servicing. The truth is, under Australian Consumer Law, you have the right to choose who services your car and which parts are used – provided they meet the manufacturer’s standards.

At CPK McLaren, we remove the confusion. We always use genuine parts so your prestige or luxury vehicle is protected, inside and out.

What Are Genuine, OEM, and Aftermarket Parts?

Genuine Parts – The Manufacturer’s Brand

Genuine parts are supplied by the vehicle manufacturer and come in branded packaging. They’re tested, approved, and often backed by a manufacturer warranty. The downside? They’re usually the most expensive option. RACV explains the difference here.

OEM Parts – The Unbranded Original

OEM (Original Equipment Manufacturer) parts are made by the same company that supplies the manufacturer, but they don’t carry the carmaker’s branding. They’re identical in quality to genuine parts, often at a lower cost. The Australian Automotive Aftermarket Association breaks down consumer rights here.

Aftermarket Parts – The Wild Card

Aftermarket parts are made by third-party suppliers. Some are high-quality and even outperform originals, while others may be poor quality and wear out faster. This variability makes them risky, particularly for safety-critical components. Choice offers a guide on aftermarket risks.

Will Using Non-Genuine Parts Void My Warranty?

Here’s the key point: using non-genuine parts does not automatically void your warranty. A manufacturer can only deny a claim if they can prove the part caused the failure. This principle is enshrined in Australian Consumer Law. The ACCC makes this clear.

Want total peace of mind? At CPK McLaren, we only use genuine parts – so you never need to worry about disputes.

(Internal link: Mechanical Services Hub – anchor: “warranty-safe log book servicing”)

What Actually Voids a Car Warranty?

While non-genuine parts aren’t an automatic problem, there are situations that can void a warranty:

  • Misuse or Neglect – Skipping log book services or racing a non-performance car.
  • Faulty Installation – Parts fitted incorrectly by an unqualified mechanic.
  • Unauthorised Modifications – Tuning or altering components beyond manufacturer limits.

For prestige owners, aftermarket modifications can also affect insurance. NRMA highlights the insurance risks here.

Independent vs Dealer Servicing – The Truth

Another big myth? That you must return to the dealer. Independent workshops can service your car while keeping your warranty intact if they:

  • Use fit-for-purpose parts that meet manufacturer standards.
  • Employ qualified professionals.
  • Follow the log book schedule exactly.

And yes – independent workshops are legally entitled to stamp your log book. The AAAA’s Choice of Repairer campaign confirms this.

Why Prestige Car Owners Need to Pay Attention

For prestige vehicles like BMW, Mercedes-Benz, and Porsche, standard warranties fall under the same consumer law protections. But extended or conditional warranties can sometimes require dealer-only servicing.

That’s why many owners choose specialist independents like CPK McLaren. We deliver dealership-level servicing for prestige vehicles using genuine parts – without the dealer price tag.

(Internal link: Prestige Log Book Servicing Hub – anchor: “prestige log book servicing for BMW, Mercedes, Audi, and more”)

Why CPK McLaren Only Uses Genuine Parts

We take the risk out of the decision. By using genuine parts on every service, you get:

  • Warranty protection guaranteed.
  • Perfect fit and performance.
  • Higher resale value and peace of mind.

Our award-winning team has been recognised across Gippsland for excellence in automotive servicing. When it comes to your prestige or luxury car, we believe compromise is not an option.

FAQs

Do I need genuine parts to keep my warranty?
 Not legally – but using them guarantees no disputes.

Are OEM parts just as good as genuine?
 Yes, they’re often identical, just without the branding.

What’s the risk with aftermarket parts?
 Quality varies widely. Some are fine, others may wear out quickly or cause failures.

Can an independent mechanic service my new car?
 Yes. Provided they follow the log book, use fit-for-purpose parts, and are qualified, your warranty stays intact.

Book Your Warranty-Safe Service Today

When it comes to protecting your warranty, don’t take chances. Book your prestige log book service with CPK McLaren – Gippsland’s award-winning independent specialists.

Call us now or book online to secure your warranty-safe service.

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