... maximum oil-out diameter is 19.7MM. JC088 diesel pump operated by DC12V motor, full –sealed .device.when ... it works, first should put clean diesel pump in the middle of diesel bucket, does not allow empty load ... gasoline, alcohol and other flammable liquids, The pump mainly smoke diesel, flow rate: 33L/min. The outer diameter ... clamp when clip the battery 12v diesel pump fuel pump oil pump water pump