GEN-Y EXECUTIVE Torsion-Flex fifth-wheel pin box — isolates truck from trailer for up to 90% less shock transfer. Features: - TORSION-FLEX rubber suspension for smoother, safer 5th-wheel towing - Heavy-duty steel construction, Made in the USA - 5-year warranty on rubber components; limited lifetime on steel - Confirm frame/pin-box fitment and pin-weight range before ordering Manufacturer SKU: GH-8050 Lippert 1621, 1621 HD, 1116, 1716 (Lippert 1116 & 1716 Add-on Shim Plates Required) / 7,275 - 16,360 lbs (4.5K Tongue Weight)