UPPERSTRUCTURE / Pump Device ASSEMBLE PILOT PUMP 4 3 2 5 6 8 7 1 9 10 2 13 4 12 11 8 15 14 W110-02-04-022 1 - Key (2 Used) 5 - Washer (4 Used) 9 - Housing 13 - Drive Gear 2 - Bushing (2 Used) 6 - Bolt (4 Used) 10 - Knock Pin (2 Used) 14 - Flange 3 - Gear 7 - Cover 11 - Backup Ring (2 Used) 15 - Oil Seal 4 - Bushing (2 Used) 8 - O-Ring (2 Used) 12 - Seal (2 Used) 16 - Retaining Ring 16 W2-4-50 11 12