Graco 18E249 Reactor 3 E-30 Pump Seal Kit

Graco 18E249 Reactor 3 E-30 A-Side Pump Repair Kit

The Graco 18E249 Pump Repair Kit is designed for rebuilding the A-side (ISO) displacement pump used on Reactor 3 E-30 spray foam and polyurea proportioners. This OEM repair kit contains the primary wear components required to restore pump sealing, maintain pressure balance, and extend pump service life.

Regular pump maintenance helps prevent material leakage, pressure fluctuations, and costly downtime in the field.

Common Signs a Pump Rebuild Is Needed

• Material leaking from the displacement pump
• Pressure imbalance between A and B components
• Reduced output performance
• Difficulty maintaining spray pressure
• Excessive TSL consumption
• Worn seals and packings
• Pressure fluctuations during spraying

Fits

• Graco Reactor 3 E-30

Why Rebuild Your Pump?

Replacing seals and packings before major leakage occurs can:

• Extend pump life
• Maintain proper pressure balance
• Improve spray consistency
• Protect expensive pump components
• Reduce unplanned downtime

SPF Depot Technical Tip

During a pump rebuild, inspect:

• Pump rod condition
• Cylinder sleeve wear
• Ball checks
• Valve seats
• Wet cup condition
• TSL level and contamination

A leaking pump caught early is usually a simple seal repair. Continued operation with worn packings can damage the rod and cylinder, leading to a much more expensive repair.