The Dometic VT4500 Air Pump Assembly Kit is the complete pneumatic solution for RV waste holding tank systems that rely on air circulation and pressure regulation. This OEM replacement kit is essential for RV owners whose VT4500 toilet systems are experiencing weak flushing, slow tank emptying, or inconsistent air pressure—common signs that the pump assembly needs replacement.

• Complete air pump assembly with integrated motor and diaphragm
• Factory-matched components ensure proper tank pressurization
• Direct replacement for original Dometic VT4500 systems
• Includes all gaskets and mounting hardware
• Restores consistent flushing performance and tank operation
• OEM quality built to Dometic specifications

Frequently Asked Questions

How do I know if my VT4500 pump assembly needs replacement?

Signs include weak or no flushing action, slow tank evacuation, hissing sounds from the toilet, or the system not building pressure. If your toilet suddenly loses flushing power, the pump assembly is often the culprit.

Is this a complete kit or just the pump motor?

This is a complete assembly kit that includes the air pump motor, diaphragm, and all necessary gaskets and hardware for installation. You get everything needed for a full replacement.

Can I install this myself, or do I need a technician?

Most RV owners can install this with basic tools by disconnecting the old assembly and bolting on the new one. Refer to your Dometic manual for specific mounting locations and air line connections on your model.

Why Choose Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts and ship from Elkhart, Indiana—the RV capital of the world. Every part is genuine OEM stock, and our expert support team can help you confirm compatibility with your specific VT4500 system before you buy.