Springer Parts 9613990496SP part number replaces Alfa-Laval part number 9613990496; Valve Service Kit, 762TR K&T 4" FKM 21, 22, 31, 33, 35, 57, 58; Springer Pumps, LLC is pleased to offer our clients Springer Parts! Springer Parts are replacement pump parts, pump replacement kits and replacement mechanical seals. Springer Pumps proudly offers them 20% - 40% below OEM.