Comet Pumps

Professional-grade equipment and supplies at Sun Brite Supply — Gaithersburg, MD

Comet pumps deliver consistent performance for pressure washing contractors who demand dependable equipment. Italian-engineered and built to handle the demands of daily commercial use.

We carry Comet direct-drive and belt-drive models plus complete repair kits. Parts are interchangeable across many Comet series, making field service straightforward.

What to Know Before You Buy

Call (301) 519-9274 for Comet pump sizing and compatibility.

OEM & Aftermarket

Factory and compatible replacement options for every budget.

Seal Kits In Stock

Rebuild your pump instead of replacing it - parts always available.

Multi-Brand Selection

AR, Comet, General Pump, UDOR, and Emperor models.

Belt & Direct Drive

Match the drive type to your run hours and application.

Pump Brand Comparison

Brand	Strength	Drive Types	Best For
AR (Annovi Reverberi)	Wide parts availability	Direct & Belt	General commercial use
General Pump	Long service life	Belt-drive focus	High-hour operations
Comet	Italian engineering	Direct & Belt	Daily commercial use
UDOR	Ceramic plunger tech	Multiple configs	Spraying & PW
Emperor	Budget-friendly	Direct & Belt	Cost-conscious contractors

Frequently Asked Questions

How do I know when my pump needs rebuilding?

Water leaking from the pump body, loss of pressure, or pulsating output are all signs of worn seals. A seal kit rebuild is the first repair to try before replacing the entire pump.

What is the difference between belt drive and direct drive?

Direct drive pumps bolt directly to the engine shaft and spin at engine RPM (3,400+). Belt drive pumps use a pulley system to reduce RPM to 1,400-1,700, resulting in less wear and longer pump life.

How do I match a pump to my engine?

You need to match the pump shaft size, RPM rating, and HP requirement to your engine output. Call us with your engine model and desired PSI/GPM and we will spec the right pump.

How often should I change pump oil?

Change pump oil every 50 hours of use or monthly, whichever comes first. Use pump-specific oil - do not substitute motor oil. Low or contaminated pump oil is the number one cause of premature pump failure.

Can I upgrade from direct drive to belt drive?

Yes. You need a pump-made-ready assembly with the correct mounting bracket and pulley kit for your engine. The upgrade pays for itself in longer pump life and smoother operation.

Need Help Choosing? Call Us.

30 years of industry experience. (301) 519-9274

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