1、Perfect Fit for Hydraulic Cylinders: Designed to fit hydraulic cylinders with a bore of 4.5 inches and a rod diameter of 1.75 inches, ensuring a perfect match and efficient rebuilding. 2、Durable Material: The hydraulic log splitter cylinder rebuild seal kit is constructed from high wear resistant rubber and plastic materials, guaranteeing durability and long term reliability. 3、Reliable Quality: The seal kit providing trustworthy quality assurance, and ensures smooth operation of your equipment after rebuilding. 4、Ideal for Hydraulic Log Splitter Rebuild: Suitable for rebuilding hydraulic log splitter cylinders, meeting your requirements for equipment maintenance and repair. 5、Comprehensive Seal Kit: Comes with a variety of seals, allowing replacement of all crucial parts at once, offering convenience and time saving efficiency. Item Type: Hydraulic Log Splitter Cylinder Seal Kit Material: Rubber, plastic Fitment: Fits for 4.5in Bore X 1.75in Rod Cylinder To know whether it fits your cylinder, one good way is to disassemble and measure your cylinder to compare with each item specification. 1. Cylinder tube Bore (I.D.) 4.5in x rod (O.D) 1.75in. Please note: 4.5in bore size is not Cylinder tube O.D. Cylinder rod size is inside tube part size. 2. Piston wear ring : 114.3 mm (OD 4.5in) x 107.95mm (ID 4.25in) x 9.53mm (0.375in wide), Nylon Rod wear ring : 44.5mm (ID 1.752in) x 50.8mm (OD 2in) x 9.53mm (0.375in wide), Nylon 3. Piston seals 1 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 + NBR 4. 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, TPU Below is 4.5inBore x 1.75in rod cylinder Specification that OEM made by this seal kit: Retracted (center to center between rod mountain hole and clevis hole: 32.4in Extended (center to center same as above): 56.4in Stroke: 24±0.05in Dimension from center of clevis hole to back face of cylinder: 2.95in Dimension from center of rod end hole to front face of rod: 1.06in Dimension from center of rod end hole to front face of cylinder: 1.18in Ports: 1/2in NPT Dimension from port to port: 25.4in Rod: 1.75in rod Rod end mountain hole: 0.55in Clevis Mountain hole: 1.16in Dimension between mountain clevis to clevis: 0.87in Thickness of each mountain clevis: 0.375in Length of each mounting clevis: 4.125in 1 x Hydraulic Log Splitter Cylinder Seal Kit (10 Pcs)