One New Aftermarket Replacement John Deere Tachometer that fits Tractor models: 1030, 1130, 1630, 1830, 2030, 2130 -- All with 8 Speed Transmission. 19 MPH.
OD is 4 1/8", Dash hole size should be around 3 7/8".
Replaces Part Number: AL30803
Please confirm fitment before buying