What Is an Engine Core? A Complete Guide to Core Charges and Returns

If you're shopping for a remanufactured engine, you've probably come across the term engine core or noticed a core charge added to your total. But what exactly does that mean, and how does it affect your purchase?

In this guide, we’ll explain what an engine core is, why core charges exist, and how to successfully return your core to get your deposit back—all while keeping your vehicle (and budget) on track.

What Is an Engine Core?

An engine core is your old engine—the one being replaced. Even though it may not be functioning properly, it still contains valuable components that can be cleaned, inspected, and rebuilt into a high-quality remanufactured engine.

Remanufacturers rely on these returned cores to keep the rebuild process going. Without them, they’d have to source used engines from elsewhere, which increases costs for everyone.

What Is a Core Charge?

A core charge is a refundable deposit added to the purchase of a remanufactured engine. This fee incentivizes customers to return their old engine (the "core") so it can be rebuilt.

Why Is There a Core Charge?

Remanufacturing companies need old engine cores to rebuild and resell. If you don’t return your core, the company must find a replacement, which adds labor and material costs. The core charge helps cover this expense if the core isn’t returned.

The good news? You get the core charge refunded when you send your old engine back—provided it meets return requirements.

How Much Is a Core Charge?

Core charges typically range from $200 to $1,000, depending on the make and model of the engine. You'll see this charge listed separately in your invoice when purchasing a remanufactured engine online or from a parts dealer.

Do You Accept Core Returns?

Yes, we absolutely accept core returns—and we’ve made the process easy. Follow the checklist below to ensure your engine core is accepted and you receive your refund promptly.

Core Return Requirements

To qualify for a full core charge refund, your returned engine core must meet these conditions:

• Like-for-Like Match: The returned core must match the engine purchased (same model, displacement, and configuration).

• Fully Drained: Drain all oil, coolant, and fluids from the core before shipping.

• Returned Within 30 Days: Send the core back within 30 days of delivery.

• Original Skid or Container: Use the same undamaged skid or shipping container your remanufactured engine arrived in.

How to Return an Engine Core

Here’s a quick guide to make your engine core return smooth and stress-free:

1. Prepare the Core

   Drain all fluids and ensure the engine is intact (no missing parts or disassembly).

2. Reuse the Shipping Skid

   Place the core securely in the same container or skid used for delivery.

3. Contact Us

   Reach out to our customer service to schedule a return pickup or get return labels.

4. Return Within 30 Days

   Make sure your core is shipped back on time to avoid losing your deposit.

Why Returning Your Core Matters

Returning your remanufactured engine core helps reduce waste, lower production costs, and support a more sustainable automotive industry. You also save money—by getting your core charge refunded.

In fact, returning a core:

• Supports environmentally friendly remanufacturing

• Helps keep engine prices lower

• Reduces landfill waste

Final Thoughts

Understanding how engine cores and core charges work is key when buying a remanufactured engine. By returning your old engine on time and in good condition, you not only get your core charge refund, but you also help keep the automotive ecosystem running efficiently.

Need help with your core return or have questions about your engine purchase? [Contact our team]—we’re here to make the process easy.