Check the listing for details. 4.5" Bore x 1.75" Rod Cylinde Hydraulic Log Splitter Cylinder Rebuild Seal Kits. Condition: New. Listed at 9.99 USD. Hydraulic Log splitter cylinder rebuild seal kit for 4.5"Bore x 1.75" rod cylinderTo know whether it fits your cylinder, one good way is to disassemble and measure your cylinder to compare with each item specification. Double check each seal groove is good for our part sitting in.1. Cylinder tube Bore (I.D.) 4.5" x rod (O.D) 1.75". Please note: 4.5" bore size is not Cylinder tube O.D. Cylinder rod size is inside tube part size.2. Wear rings.Piston wear ring : 114.3 mm (OD 4.5") x 107.95mm (ID 4.25”) x 9.53mm (0.375" wide), NylonRod wear ring : 44.5mm (ID 1.752") x 50.8mm (OD 2”) x 9.53mm (0.375" wide), Nylon3. Piston seals1 square ring and 1 O-ring. Piston Square ring: 114.3 mm x104.3mm x 3.28mm; O-ring (installed under the square ring): 103mm x 2.65mm. CPU + NBR4. Rod O-ring (item 13): 44.5mm x 54mm x 5mm, CPU. There is O-ring inside. 5. Rod dust ring (Item 12): 44.5mm x 54mm 5.5mm /7.3mm, TPUBelow is 4.5"Bore x 1.75" rod cylinder Specification that OEM made by this seal kit:Retracted (center to center between rod mountain hole and clevis hole: 32.4"Extended (center to center same as above): 56.4"Stroke: 24±0.05"Dimension from center of clevis hole to back face of cylinder: 2.95"Dimension from center of rod end hole to front face of rod: 1.06"Dimension from center of rod end hole to front face of cylinder: 1.18"Ports: 1/2" NPTDimension from port to port: 25.4"Rod: 1.75" rodRod end mountain hole: 0.55"Clevis Mountain hole: 1.16"Dimension between mountain clevis to clevis: 0.87"Thickness of each mountain clevis: 0.375"Length of each mounting clevis: 4.125"