Cat Aftermarket 7X2664 Hydraulic Cylinder Seal Kit This is a New Seal Kit that fits the following Models and Cylinder part numbers Model Num. Application Cylinder Code Rod Size (in) Bore (in) Misc. Kit # D5 DOZER 5J8174 P-UB-10 2-1/2" 4-1/4" - CTC-7X2664 D5 DOZER 5J8176 P-UB-10 2-1/2" 4-1/4" - CTC-7X2664 D6B LIFT 5J8173 P-UB-10 2-1/2" 4-1/4" - CTC-7X2664 D6C DOZER 5J8172 P-UB-10 2-1/2" 4-1/4" - CTC-7X2664 D6C DOZER 5J8173 P-UB-10 2-1/2" 4-1/4" - CTC-7X2664 Please verify part number prior to order. function click() {if (event.button==1 || event.button==2) {alert(' Quit copying my listings, you know who you are!! All others please ask. If you find this same information elsewhere please let me know. The exact format, order, or cross-reference information as it is represented here can be found nowhere else that I am aware of. It was compiled at great expense to time with my children and countless hours of effort. Please report these instances to me, and I will do my best to stop their actions. Thank you.!')}}document.onmousedown=click Thanks for viewing our listings. Please click "Ask A Question" or call us if you have a parts need that you do not see listed here. We will do our best to locate the parts you need and make every effort to save you money. For parts information in English please call Chris at (813)365-0042. Gracias por ver nuestros anuncios. Por favor, envie un mensaje o simplemente llamenos si necesita alguna's pieza que no ves listado. Mencionado Haremos nuestro mejor esfuerzo para localizar las piezas que necesita y hacer todo lo posible para ahorrar dinero. Para espanol llame a (813) 365-0042.