Upgraded oil pump valve for Harley Davidson

Fits all 1981-1999 Big Twin

• HD.M.G.I. devised the solution for the problem of oil accumulation in the crankcase in engines prior to the year 2000.
  
• The steel ball does not always seal the oil pump feed hole, causing the oil tank to empty into the crankcase when the engine has been stopped for a while.
  
• The solution is a special ball made of FKM 70 ±5 Shore (Viton) material, which withstands oil and temperatures from -25 to +230 degrees Celsius.
  
• The complete kit includes the ball, a special spring, and an aluminum adapter that is placed between the spring and the ball.