Fitment:
For Grainger Item Number: 1MCX6, 1MCX7, 1MCX9, 1MCZ5, 1MDB4, 4WXW8
For Annovi Reverberi RK, RKA, RKV, XRCA, XRV, XRCV series
Features:
1) Part #AR2546, Replaces part # 2757, Replaces for Troybuilt Part # 193990GS
1) Part #AR2546, Replaces part # 2757, Replaces for Troybuilt Part # 193990GS
2) Ceramic Pistons Dimensions: 18mm OD, 11mm ID, 40mm length
3) Made of high-quality ceramic, steel and plastic to service your pressure washer pump. High precision and hardness to provide a much longer service life
3) Made of high-quality ceramic, steel and plastic to service your pressure washer pump. High precision and hardness to provide a much longer service life
Remove
1. Remove the piston nuts using a 13 mm hex socket.
2. Clean the piston rods and surrounding debris then lift off the copper washers.
3. Twist and pull pistons off the piston rods.
4. With the pistons off you can now remove the brass slingers.
5. Remove the o-rings on the piston rods.
6. Remove the backup rings below them.
Install
1. Add on the replacement backup rings.
2. Roll the new o-rings over the piston rods to put them back in place.
3. Put the new brass slingers into position on the rod.
4. Twist and slide the new pistons back over the rod.
5. Put the replacement washers on them, use a drop of Loctite on the piston threads.
6. Put the piston nuts back on and tigthen.
Package included:
3 x Ceramic Pistons; 3 x Copper Washers; 3 x Spacers; 3 x O-Rings; 3 x Piston Nuts; 3 x Backup Rings 
