Genuine Bendix Governor P/N: KN18511X, for more precise availability please give us a call we will help you out!A refundable core charge of $4.20 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.A factory handling fee of $20.00 per unit is added at checkout.