GEAR DRIVEN WITH 16 TOOTH GEAR INCLUDES: INSTALLATION TOOL, O-RINGS & SNAP RING DOES NOT INCLUDE COVER GASKET
19 TOOTH GEAR #R531893 WITH CAST IRON HOUSING HAS 1 TUBE PORT & 3 THREADED PORTS INCLUDES: 2 MOUNTING O-RINGS
19 TOOTH GEAR #R521553 WITH CAST IRON HOUSING HAS 1 TUBE PORT & 2 THREADED PORTS INCLUDES: 2 MOUNTING O-RINGS
CAN USE ORIGINAL JD VERSION 804-5502. CAN USE HEAVY DUTY DRY-TECH VERSION 804-550.