Sierra Water Pump Impeller 18-3039

This Sierra water pump impeller fits various Mercury Marine outboards from the 1970s - 1980s.

• I.D.: 0.456" or 11.6mm
• Fits: Various outboards 3.9-9.8
• Included in: Impeller Kit 18-3239 and Water Pump Kit 18-344

Use With:

• Impeller Repair Kit #18-3239
  
• mpeller Kit (Display Pack) #18-3239D
• Water Pump Kit #18-3446

Interchange: