All of our new parts are aftermarket replacements. The use of original manufacturer names and part numbers is for reference purposes only. Our goal is to achieve 100% positive feedback. If you have any issues with a product you receive from us, please contact us and we will resolve the issue to your satisfaction. Compatible with John Deere 5103 (serial number 001072-earlier), 5105, 5200 (serial number 111724-later), 5203 (serial number 000882-earlier), 5205, 5210, 5215, 5220, 5300 (serial number 121907-later), 5310, 5310N, 5315, 5320, 5320N, 5400 (serial number 131838-later), 5400N, 5403, 5500N tractors. Replaces John Deere OEM Part Numbers RE197623, RE68886, RE57445 Check Measurements Before Ordering Center to Center Manifold Ports: 3.75″ Center to Center Manifold Bolt Hole: 2.48″ Offset: 40cm