Your N14 high pressure fuel pump will be rebuilt and tested in the workshop. This pump is delivered with the cylinder head sealing O-ring. The pump will be guaranteed for (1-5) years on the repair, starting from the date of the repair. This pump after repair, it should last 5 years. This warranty is not transferable from one owner to another. The repair will be carried out within a maximum of 3 working days after receipt and will be dispatched. Return costs are included. You will see shipping instructions at the end of your Paypal transaction. Delivery is free. I have over 1060 pumps repaired and in service. You can read the testimonials.