DOPPK-3HCC-GE1X-XXX Snapper Right Hand Steering Pump Hydro-Gear No. PK-3HCC-GE1X-XXXX. This is a Hydro-Gear pump. Replaces part numbers, 438500, 7100438yp, 7100438, PK-3HCC-GE1X-XXXX, PK3HCCGE1XXXXX, PK-3HCC-GE1X-X, PJ-3HCC-GE1X-XXXX, PJ3HCCGE1XXXXX, PJ-3HCC-GE1X-X.