AR 160, AR 185 Diaphragm Kit - AR43257
Part # AR43257 is the replacement diaphragm kit for the AR160 and AR185 diaphragm pumps. AR recommends changing the diaphragms every 500 hours or three months, whichever comes first.
Part # AR43257 will also rebuild the older Hypro D160 pumps.
The kit includes four replacement Desmopan diaphragms, eight replacement valve o-rings and replacement accumulator diaphragm.
When rebuilding the pump diaphragms follow all factory torque specifications. Accumulator diaphragm should be set to 20% of pump operating pressure. Replacing diaphragms will require new oil. Replace with 30 weight non-detergent.