Link-Belt Excavator Windshield X4 series: UPPER and LOWER Replaces Link-Belt Excavator Windshield Glass (Upper) #KHN25620 - (Lower) #KHN25610. The Upper is flat and the Lower is curved just like the original glass. Models: 130 x4, 145 x4, 160 x4, 210 x4, 210 x4 LF, 245 x4, 250 x4 ,250 x4 LF, 300 x4, 350 x4, 350 x4 LF, 490 x4, 750 x4 Upper is offered 1/4", 3/8" & 1/2" - Lower is offered in 1/4" only. If interested in 3/8" or 1/2", please contact our team. We need the hardware for this for milling purposes. Upper Window Lead Times: ½” – up to 30 business days 3/8” – up to 45 business days ¼” – up to 45 business days   Lower Window Lead Times: ¼” – up to 30 business days 3/8” – not yet available 1/2” – not yet available Please call our office for more information! (765) 342-2300, text us at (765) 913-8121. To buy both upper and lower windows, add one window to your cart then add the second as a separate purchase. Not sure what thickness to get? Click here for info.