DCP Core Policy & Information

Frequently Asked Questions

How Do I return my core?

Before shipping your core, please fully drain all oil, fuel, and other automotive fluids from the component and securely package the core to prevent shipping damage or leakage during transit. Be sure to include your order number or return documentation inside the package to help avoid processing delays. All cores must be returned and addressed to:

Diesel Care and Performance

3901 Thomas Street

Memphis TN 38127

When will I receive my refund?

Once your core is delivered to our facility, please allow 7 days for core check-in and inspection. If your core is approved, an additional 7-12 days are required for the refund to be processed back to your original payment method.

Where can I find the core charge amount?

Core charges are listed on the original product listing and/or during checkout prior to purchase.

How long do I have to return my core?

Most deferred cores must be returned within 35 days from the original shipment date.

Can I still return my core if I’ve already been charged?

Deferred cores may still be returned after the core charge has been collected, but any late fees incurred are non-refundable and will be deducted from the issued refund. No core returns or credits will be accepted more than 90 days from the original order delivery date, regardless of payment status, core arrangement, or late fee collection. Contact our customer service team to see if your core still has eligibility.

Can I send my core before ordering?

Yes. Please contact customer service before shipment so we can coordinate inspection and processing.

What happens if my core is damaged?

Damaged, incomplete, modified, or non-rebuildable cores may receive reduced credit or no credit at all depending on inspection results.

Who pays for return shipping?

Customers are generally responsible for return shipping costs unless otherwise stated in writing.

 

Diesel Care and Performance Core Policy

At Diesel Care and Performance, any of our products are sold on an exchange basis and require the return of a rebuildable “core.” This policy outlines the available core return options, timelines, inspection standards, and refund procedures associated with core-based purchases.

Our goal is to make the core return process as simple and transparent as possible while protecting against damaged, incorrect, or non-returned cores.

What Is a Core?

A “core” is a used diesel component that can be rebuilt or remanufactured for future use. Common core items include:

·       Fuel injectors

·       Injection pumps

·       Turbochargers

·       FICMs and IDMs

·       High-pressure oil pumps

·       Other exchange-based diesel components

Applicable core charges and core options are listed directly within the original product listing and/or during checkout prior to purchase.

How do I return my core?

Before shipping your core, please fully drain all oil, fuel, and other automotive fluids from the component and securely package the core to prevent shipping damage or leakage during transit. Be sure to include your order number or return documentation inside the package to help avoid processing delays. All cores must be returned and addressed to:

Diesel Care and Performance

 3901 Thomas Street

Memphis TN 38127

Available Core Return Options

We offer multiple flexible core return options depending on your needs.

Option 1 — Pay Core Deposit Upfront

Customers may choose to pay the applicable core charge during checkout. Customers have up to 90 days from order delivery to return core for a full refund of the core deposit paid.

Once the rebuildable core is received and approved during inspection:

·       The applicable core refund will be issued back to the original payment method

·       Refunds are typically posted back to the customer’s original payment method within 14–19 days after package delivery

Option 2 — Send Core Prior to Shipment

Customers may send their rebuildable core to our facility before order shipment.

Once the core is received and approved:

·       The replacement product may ship without an additional temporary core balance

·       Processing times may vary depending on inspection and order availability

Please contact customer service before shipping a core in advance of purchase.

Option 3 — Core Deferment  

With our deferred core option:

·       Customers are allowed a 35-day window to return their rebuildable core

·       A temporary deferred core balance may remain open on the customer’s account until the core is received and approved

If the core is not returned within the allowed timeframe, the customer becomes responsible for the unpaid core balance. 

Customers who choose a deferred core option may be required to complete an electronic Core Agreement and Credit Card Authorization Form prior to order shipment. This signed authorization is required in accordance with Diesel Care and Performance policies, fraud prevention procedures, and applicable payment processor requirements.

By completing the authorization form, the customer acknowledges and agrees to the applicable deferred core terms, including potential charges related to unreturned cores, late fees, or outstanding core balances as outlined within this Core Policy.

If the core is not returned within the applicable return period, the deferred core balance may become subject to a late fee equal to 1% per day of the outstanding core value, not to exceed a maximum total of 30% of the original core value.

 

After 35 Days

If a core remains unreturned or has not been checked in within 35 days of the original order delivery, the credit or debit card on file will be billed for the full monetary value of the core. If the initial collection attempt is unsuccessful, a 10% late fee will be applied to the outstanding balance and an additional collection attempt will be made. Diesel Care and Performance reserves the right to continue collection efforts until the full balance is resolved. Once the core balance and any applicable late fees have been collected, any return or refund eligibility is at the sole discretion of Diesel Care and Performance. All late fees collected are non-refundable.

 

If at any time the credit or debit card placed on file is found to be invalid, or if any attempts made by Diesel Care and Performance to collect the fees and monetary values outlined in this agreement are disputed, the customer's account and all associated rewards, benefits, and pending orders will be placed on hold until the outstanding balance is resolved.

 

90-Day Absolute Cutoff: No core returns or credits will be accepted more than 90 days from the original order delivery date, regardless of payment status, core arrangement, or late fee collection.

 

Please note: Not all products qualify for core deferment due to limited inventory availability or supplier restrictions. Products that are ineligible for deferment will be clearly marked within the product listing prior to purchase.

Core Return Requirements

To qualify for full or partial core credit:

·       The core must be the same type and application as the product purchased

·       The core must be substantially complete

·       The core must be rebuildable

·       Rotary pump cores cannot be locked up or seized, and must spin freely by hand

·       The core must not be disassembled beyond normal inspection

·       Data Tag or Identify information must be legible

·       The core must be returned within the applicable return period

Customers are responsible for:

·       Proper packaging

·       Return shipping costs unless otherwise stated

·       Including order information or other documentation with the return

Diesel Care and Performance is not responsible for cores damaged during return shipping due to insufficient packaging.

Rebuildable Condition Standards

Returned cores are inspected upon arrival.

Cores may receive reduced credit or be rejected entirely if they are found to be:

·       Cracked, broken, or structurally compromised

·       Burnt or water damaged

·       Rusted beyond rebuildable condition

·       Missing major components

·       Locked up or seized head and rotors

·       Disassembled excessively

·       Modified, welded, or tampered with

·       Contaminated with metal debris or foreign material

·       Incorrect application or non-matching part type

·       Missing data tag or identifying information

Core credit amounts may be adjusted based on inspection findings.

Core Inspection & Processing

All returned cores are subject to inspection and approval before any refund or credit is issued.

Please allow approximately:

·       7 days for inspection processing after delivery

·       7-12 days for the refund to be processed back to your original payment method.

·       In total, customers should expect to receive their core deposit refund within 14-19 business days from the date their core is delivered.

·       Additional processing time during peak seasons or manufacturer review periods may be needed. We appreciate your patience during these times.  

Certain products supplied by third-party manufacturers may be subject to additional inspection standards, approval requirements, or processing timelines established by the original supplier.

Non-Return & Late Return Policy

Deferred cores not returned within 35 days from the original shipment date may become permanently ineligible for refund or credit.

Diesel Care and Performance reserves the right to:

·       Charge the deferred core balance

·       Deny late core returns

·       Refuse partial or damaged cores

·       Reduce core credit based on condition

Failure to return a core within the allowed timeframe may result in permanent forfeiture of any applicable core refund.

No core returns or credits will be accepted more than 90 days from the original order delivery date, regardless of payment status, core arrangement, or late fee collection.

Outstanding Core Balance Restrictions

Customers with:

·       Outstanding unpaid core balances

·       Overdue core returns

·       Excessive rejected cores

·       Unresolved disputes

·       Chargebacks related to prior core transactions

may become ineligible for:

·       Additional deferred core purchases

·       Warranty replacements

·       Future exchange-based transactions

·       Certain refunds or account accommodations

until the account is returned to good standing.

 Return Shipping Instructions

Please securely package all returned cores to prevent shipping damage.

Include:

·       Order number

·       Customer name

·       Contact information

·       Any applicable RMA or return documentation

Ship returns to:

Diesel Care and Performance
ATTN: Core Returns
3901 Thomas Street
Memphis, TN 38127

Customers are responsible for retaining tracking information until the core has been confirmed received.

Need More Help?

If you have questions regarding core returns, refunds, core pricing, or other core-related concerns, please contact our customer service team before purchasing or returning any product.

Diesel Care and Performance
3901 Thomas Street
Memphis, TN 38127
1-800-961-9290

Policy Updates & Rights Reserved

Diesel Care and Performance reserves the right to modify this policy at any time without prior notice, refuse cores that do not meet rebuildable standards, deny claims involving fraud, abuse, or misrepresentation, and enforce manufacturer-specific core requirements where applicable. Diesel Care and Performance further reserves the right to refuse service to any customer at its sole discretion, including but not limited to refusal of sales, returns, exchanges, warranty claims, or any other transactions, in accordance with applicable laws and regulations.

Policy last updated August 6, 2026