The following Dorman (prefix RNB-) products have special core return requirements. All other Dorman products should be returned to us through the normal Core Return Process.

  1. Instrument Clusters
  2. Transmission Electro-Hydraulic Control Modules
  3. Hybrid Battery Packs

If you bought one of these Dorman products, please follow the return instructions that came with your new part.


  • For the best service, please return your core within 90 days of purchase.
  • Always return the core in the box from the new part.
  • Please specify "Core Return" on the return form.
  • Damaged or unusable cores will not be accepted.
  • You are responsible for Return Shipping Charges.
  • In accordance with state and local laws, sales tax charged on core value may be non-refundable.
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