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Aro 637140-88 Pump Repair Kit
Diaphragm pump repair kit with polyurethane balls, diaphragms and seals
- Restores pump performance with genuine ARO parts
- Polyurethane diaphragms resist wear and chemical attack
- Complete kit includes balls, diaphragms and seals
- Ready-to-install solution for ARO 637140-88 pumps
Diaphragm Pump Repair Kit
The Aro 637140-88 kit supplies polyurethane diaphragms, balls and seals for servicing compatible ARO diaphragm pumps. It is intended for maintenance technicians and RV owners who need to restore pump sealing and flow performance using manufacturer-specified components.
Installation Requirements
The kit fits directly into the pump fluid section during a rebuild, requiring standard hand tools and a clean work area. It replaces worn elastomers to stop leaks and recover suction, letting the existing pump body and air motor stay in service without a full unit replacement.
How it compares
Measured against everything we stock in Engine Parts, Chassis & Socket Sets, at today’s prices. Recalculated every night.
- Price $119.99
- Pricier than about 69% of the 231 comparable items (median $62.99).
Specifications
| Product | |
|---|---|
| Brand name | ARO |
Questions about this item
Which components inside the Aro 637140-88 kit wear out first under continuous pumping?
The polyurethane diaphragms and balls included in the kit are the primary wear items that degrade with sustained operation.
How much heat does the Aro 637140-88 pump generate during all-day use?
The repair kit itself produces no heat; temperature rise depends on the pump body and the fluid being moved.
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