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Gear Driven Pump Assembly Comet Pump RW5535 MAX 5.5 GPM 3500 PSI, Gearbox Fits 1 1/8" Shaft | PN 6600158

$ 999.00 999.0 USD $ 999.00

$ 999.00

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Comet RW5535 High Pressure Pump Overview

Dirt Killer offers Comets RW5535 solid shaft high pressure pump with a custom gear box assembly best suited to a contractors needs. 

Watch as Josh Lee, The Original Josh explains where this pump is best used and when it makes sense to select this replacement pump for your engine.

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Comet RW5535 High Pressure Pump for Pressure Washers 

Commercial duty solid shaft pump made by Comet. Designed to operate all day keeping you up and running under harsh conditions. Pump comes with preinstalled gear box allowing it to mate easily with most commercial grade, horizontal shaft twin cylinder engines. Pump includes hardware set, breather dipstick’s, and comes prefilled with oil. Installation instructions are as follows:

1) Remove the old pump.

    a. Clean and inspect the engine shaft.

    b. If shaft key is worn or damaged replace immediately.

    c. Grease/ lubricate the entire shaft with some form of anti seize.

2) Slide gear box and pump assembly onto engine shaft.

    a. Pump may need rotated into place as you install around a frame.

3) Select the best placement for bolts as well as proper bolts based on the engines pattern.

    a. Install and tighten all bolts with the appropriate washers and/ or spacers provided.

    b. Pump rails are generic and may not fit all frames. Vibration dampeners or motor mounts can be purchased separately and used to fill spacing between pump rails and frame.

4) Install breather dipstick on gear box and pump assembly. 

Specs from Pump Manufacturer - Comet 

  • Pump Model – RW5535
  • Drive Type- Solid Shaft Pump With Installed Gear Box Assembly
  • Required Shaft Size – 1 1/8”
  • Minimum HP Rating- 13HP 
  • Maximum Flow- 5.5 GPM
  • Maximum Pressure – 3,500 PSI
  • Recommended RPM’s- 3,500
  • Pump inlet- ¾”
  • Pump outlet- 3/8” 
  • Recommended Orifice Size – 6.0
  • Recommended Pump Oil- Comet Pump Oil
  • Recommended Gear Box Oil- 80W90 Full synthetic


RW5535 Owners Manual  


RW5535 Service Manual   


Gear Box Manual 


Gear Box Service