The Eheim Vibration Arm with Diaphragm (7619780) is a genuine OEM replacement set for the Eheim Air pump 100, 200, and 400 (models 3701, 3702, and 3704). The vibration arm and diaphragm are the core mechanical components of the air pump — the vibrating arm drives the diaphragm back and forth to generate airflow. When these components wear out, the pump loses output, becomes noisy, or stops producing air altogether.

The spare part set comes complete with instructions and Eheim special lubricant — everything needed for a complete, professional restoration of the pump’s air-generating mechanism. Rather than replace the entire air pump, this genuine OEM replacement set restores full, quiet air output at a fraction of the cost.

Key Features

• Genuine Eheim replacement part: Exact OEM fit for Air pump 100 (3701), Air pump 200 (3702), and Air pump 400 (3704)
• Vibration arm and diaphragm included: Both core mechanical components supplied together as one complete replacement set
• Comes complete with instructions and Eheim special lubricant: Everything needed for correct installation in one pack — no additional parts or lubricants required
• Restores full air pump output: Worn or damaged diaphragm is the most common cause of reduced or lost air output — replacement restores full rated pump performance
• Eliminates vibration noise: A worn diaphragm or arm often causes rattling and increased noise — replacement restores quiet, smooth operation
• Easy to replace: Complete instructions included — straightforward component swap with no specialist tools required
• Genuine Eheim quality: Manufactured to Eheim’s standards for reliable, long-lasting performance

Compatibility

• Compatible with:
  • Eheim Air pump 100 (3701)
  • Eheim Air pump 200 (3702)
  • Eheim Air pump 400 (3704)
• Not compatible with: Other Eheim air pump models

Product Details

• Brand: Eheim
• Product Code: 7619780
• Type: Vibration Arm with Diaphragm — complete replacement set
• Contents: Vibration arm + diaphragm + instructions + Eheim special lubricant
• Compatibility: Eheim Air pump 3701 / 3702 / 3704
• Quantity: 1 complete set