TWIN PISTON KIT, nolonger available
DEVILBISS PISTON KIT KK-5081
New Part# A02743
Twin Cylinder with bearing
Kit is for one piston kit (two are used on the compressor)
1 - Piston with Bearing
1 - Cylinder Wall
1 - Compression Ring & Seals
Piston Diameter 2 3/8"
Length approx. 5 3/4"
My air compressor is not building up enough pressure. Is this the correct part for me?
A common problem that can develop is the seal around the piston and the cylinder wall wears out. When this happens, the pressure your air compressor builds up will decrease. For example, it will only build up about 60-80 psi instead of 120 psi. In most cases, replacing the piston kit will solve this problem.
One or both of my piston rods broke. What will I need to replace?
A break in the piston can be caused by several things. Pistons can weaken over time but we find that in many cases the break is due to the counter balances being off balance. If the counter balances are off balance they will rub against the piston rod. You can look at the counter balances and see if there is any scoring (even very slight) on the counter balance. If there is, we suggest replacing both counter balances, spacers, fan (if it broke from the piston rod), and any other parts that look worn. It is a good idea to replace these parts even if the wear looks to be very little. It doesn't take much to break the rods and if the counter balance is causing it, not replacing the counter balance will cause the piston rods to break over and over.
Devilbiss makes compressors and parts for Craftsman, Sears, Porter Cable, Husky, Pro-Air and Many Others.
We repair and sell parts for Air Compressors, Pressure Washers and Generators.