3900 is a replacement part designed to restore the drive housing functionality in GRACO 3900 series equipment
but specific details about its material and exact function are not clearly available in public listings
Ideal for fleets or equipment with fewer lubrication points
Tighten the fastener to the recommended torque specification
The GRACO 3406-SG is a mini extension accessory
GRACO Husky 2150 Air Operated Double Diaphragm Pump, 2 in. NPT - (SKU: 25C659) 3900 is a replacement partThe GRACO Husky 2150 is a robust, air operated double diaphragm pump designed for industrial fluid transfer. It is available in aluminum, stainless steel, or ductile iron construction, with options for various diaphragm and ball materials. This pump is engineered for handling corrosive and abrasive chemicals, solvents, antifreeze, detergents, motor oil, hydraulic fluid, and water, making it suitable for demanding environments such as mining,