Springer Parts 9613990399SP part number replaces Alfa-Laval part number 9613990399; Valve Service Kit, 762-227MRAL 4" NBR; 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.