Purchase of this product requires an additional deposit that is refundable when you return the old core to the selling Caterpillar dealer. The core deposit is refunded upon return of an acceptable core (used part) to your dealer. In order to qualify for a core deposit refund, the core must meet acceptance criteria. Typical criteria include, but are not limited to: must be fully assembled and complete, not cracked or broken, free of excessive rust or pitting, free of fire damage, and must be an acceptable Cat® part number. Core acceptance criteria may vary by product - please contact your dealer for full details.