Replace OE/OEM Part Number: 1298001672, 1298001772, 1298001872, 1298002072, A1298001672, A1298001772, A1298001872, Material: Rubber Interchange Part Number:A1298002072, A1298002172, A1298000272 Rebuilt kit for all roof hydraulic cylinders for a 1990-2001 Mercedes Benz SL R129 Kit comes with 2 additional seal kits ( black seal ) This set contains all seal kits(1 u-cup ring / rod seal ,1 O ring each seal kit ) 28 seals in total 4x A 1298000072 2x A 1298000272 2x A 1298001672 1x A 1298001772 1x A 1298001872 / A 1248000272 2x A 1298002072 2x A 1298002172 seal part number and the cylinders: Front locks: 1298001672 Main lifts: 1298000272 Rear bow: 1298001772/1248000272( A1298001872 ) Rear locks: 1298000072/ 1298002172 Tonneau cover locks 1298000072 Tonneau cover lifts: 1298002072