98S (Mechanical Drive) fitted with Perkins T6.354 / T6.60 / T1006.6 or Mercedes-Benz OM352 A Engine 98SL (Hydrostatic Drive) fitted with Mercedes-Benz OM352 A / OM360 / OM366A / OM366LA Engine 98VX (Hydrostatic Drive) serial number 09308000 onwards - fitted with Perkins 1006.60TW or Mercedes-Benz OM 926 LA Engine