Comet APS41 Diaphragm Pump

APS41 three diaphragm pump with gear reduction
Free Shipping and VIP Next Day Shipping - Final price (no handling, no hidden fees, no tax).
Comet APS41 Pump.

Comet APS41 Pump.

  • APS41 Comet Pump
    USD $749.54
    • Buy 2 for USD $705.32 each and save 6%
    • Buy 6 for USD $675.34 each and save 10%
  • Comet APS41 Diaphragm Pump - VIP Next Day Delivery
    USD $938.79
  • APS41-GR Comet Pump
    USD $1,132.04
    • Buy 2 for USD $1,065.25 each and save 6%
    • Buy 6 for USD $1,019.97 each and save 10%
  • Comet Pump APS41GR - VIP Next Day Delivery
    USD $1,333.77
  • Comet APS41 Repair Kit
    USD $147.43
    • Buy 2 for USD $138.73 each and save 6%
    • Buy 6 for USD $132.83 each and save 10%
  • Comet Pressure Regulator
    USD $219.76
    • Buy 2 for USD $206.79 each and save 6%
    • Buy 6 for USD $198.00 each and save 10%


The Comet APS41 Diaphragm Pump is a high pressure, three diaphragm pump that is constructed of anodized aluminum and stainless steel valves for chemical resistance. Suitable for tractor or trailer mounted spraying applications.

High pressure internal manifold pump with anodized aluminum heads for less leak points. Flanged for multiple applications, making this Comet APS41 Pump very versatile for nursery, agricultural and horticultural uses. Perfect for lawn care, tree spraying, pest control, agricultural spraying, hydrostatic testing, and more. Easily can handle the pumping of herbicides, pesticides, liquid fertilizers, de-icing materials, and other hard-to-handle fluids. It is designed for easy maintenance and quick attachments.

APS41: Three diaphragm pump with universal drive face and mounting rails.

APS41-GR: Three diaphragm pump with gear reduction for gas engines with 3/4" shafts.

Note: If you have an existing APS41GR and you need to replace the pump, the gearbox can be reused and all you need to order is the plain APS41 Pump.

  • Max. Flow: 11 GPM
  • Max. Pressure: 580 PSI
  • Max. Rated Speed: 550 RPM
  • Max. Fluid Temperature: 104° F (40° C)
  • Min. Power: 4.1 HP
  • Port Sizes: 1" inlet
  • Three semi-hydraulic diaphragms
  • High pressure pump
  • Anodized aluminum materials
  • Pump Shaft Rotation: CW and CCW
  • Large capacity oil bath crank case
  • Self-priming
  • Can be run dry
  • Adapts to PTO, gas engine, hydraulic motor, or belt drives
  • Weight (APS41-GR): 28 lbs.

Recommended Regulator for the APS41GR is the 1204.0564 Regulator. Recommended Gearbox for this pump is the 5005.0216 Gear Reducer.

Comet 5026.0245 Repair Kit for the APS41GR Diaphragm Pump includes:

  • 3 x 1800.0020 Buna Diaphragms
  • 6 x 1220.0052 Valve Assemblies
  • 6 x 1210.0015 Valve O-Rings
  • 6 x 1210.0048 O-Rings

Check the files under Related Information for more info on this APS41GR Diaphragm Pump by Comet.

Pay In Installments

Add one or more qualifying products to your cart and your entire order becomes eligible for interest-free installment plans of up to 6 months. Learn More

VIP Shipping

On our most urgently requested products, Rittenhouse offers VIP shipping. The overnight shipping price is included and we will do our utmost to get your order to you within the next business day. Applicable to the lower 48 states only (excludes Alaska and Hawaii).

  • You must order before 3:00 PM Eastern time (12:00 PM Pacific time).
  • Overnight shipping is included in the product price.
  • A Rittenhouse VIP manager will be responsible for following your order from receipt to delivery.
  • We will let you know immediately if there is a problem with your order.

Learn More

Related Information

Customer Reviews

Write Your Own Review

You're reviewing: Comet APS41 Diaphragm Pump

  • 1 star 2 stars 3 stars 4 stars 5 stars

* Required Fields

You might prefer