Diaphragm Pump Repair Kits

ARO offers a complete line of repair kits to keep your diaphragm pump operating at peak efficiency and maximize its life span.

NEW Long Life PTFE Fluid Repair Kits

ARO Repair Kit Finder

Enter a complete or partial model or kit number. 
Looking for Piston Pump Kits? 

Submit

Include dashes in model number
(PD20A-ACP-AAA-B)


Fluid Section Repair Kits

637165-EB-web

Authentic ARO® Fluid Section Kits are the only replacement kits you can count on to restore your ARO equipment to its original performance and quality. They include the following necessary replacement parts to repair the worn fluid section of an ARO air operated diaphragm pump. If check ball seats are damaged, then they will need to be purchased seperately.

Repair Kit Contents: 

  • Set of Diaphragms
  • Set of CheckBalls or (Flaps/Cones)
  • Inlet/Outlet Manifold O-Rings
  • Connecting Rod O-Rings & Other Needed O-Rings
  • Key-Lube Grease Packet
  • Operator Manual with Detailed Repair Instructions

A full range of diaphragm and ball check materials are available to meet the needs for every industry and application.


Air Section Repair Kits

637118-C-web

EXP Series Air Section Service Kit includes gaskets, 'O' rings, 'U' cups and the Simul-Shift® valve guaranteeing an ultra-positive, reliable shift signal that avoids stall-out.

PRO Series Air Section Service Kit includes the proper gaskets, 'O' rings and 'U' cups needed to complete standard maintenance repair.

Enhanced Fluid Section Repair Kits with their associated ball check seats can be purchased as an option.  These comprehensive Fluid Section Kits are needed in some applications where ball check seats are worn due to long service life or in applications where abrasive fluids are being pumped.  The offering includes the most common Fluid Kits with a wide range of non-metallic seats. 

Order the kits with the same part number nomenclature as the pump where in the case of EXP series the 6, 7 and 8 position respectfully calls out the seat, ball, and diaphragm material. 

For example:

EXP Diaphragm Pump: PD10A-BAP-AAA

Fluid Section Repair Kit + Seats: 637401-AAA


Fluid Section Repair Kit + Seats offering include:

Pump Model

Seat Material

Ball & Diaphragm Mtrl.

Fluid Kit + Seats Part Number

66630, 66632

Santoprene

Santoprene

637433-EEB

PD30R, PE30R, PM30R, PD30A, PD30S, PE30A, PE30S, PP30A, PM30A, PM30S

Santoprene

Santoprene

637303-AAA

Nitrile

Nitrile

637303-GGG

66625, 66627

Santoprene

Santoprene

637432-EEB

Nitrile

Nitrile

637432-G22

PD20P, PE20P, PD20E, PE20E

PVDF

PTFE

637373-KTT

Polypropylene

PTFE

637373-PTT

Polypropylene

Santoprene

637373-PAA

PD20R, PD20Y, PE20R, PE20Y, PM20R, PD20A, PD20S, PE20A, PE20S, PM20A, PM20S, PP20A

Santoprene

Santoprene

637309-AAA

Nitrile

Nitrile

637309-GGG

6661A, 6661B

Polypropylene

Neoprene

637161-311-C

Polypropylene

Nitrile

637161-322-C

Polypropylene

PTFE

637161-344-C

Polypropylene

Santoprene

637161-3EB-C

66610, 66611, 66612, 66613

Polypropylene

Hytrel

637119-3C9-C

PD10A, PD10R, PD10S, PE10A, PE10R, PE10S, PM10A, PM10R, PM10S

Santoprene

Santoprene

637401-AAA

Nitrile

Nitrile

637401-GGG

PD10P, PE10P, PD10E, PE10E

Polypropylene

PTFE

637396-PTT

Polypropylene

Santoprene

637396-PAA

PD15A, PD15R, PD15S, PE15A, PE15R, PE15S, PM15A, PM15R, PM15S

Santoprene

Santoprene

637375-AAA

PD15P, PE15P, PD15E, PE15E

Polypropylene

PTFE

637391-PTT

Polypropylene

Santoprene

637391-PAA

66610, 66611, 66612, 66613

Polypropylene

PTFE

637165-344

Polypropylene

Santoprene

637165-3EB

Polypropylene

Nitrile

637165-322

*Partial results may take a moment to load depending on the number of kits returned. 

Find an Authorized Parts Distributor

Recieve a response in 24 hours.