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Product Specifications:
| Item | Fluid End Service Kit |
| Check Ball Material | Acetal |
| Compatible With Brand | ARO |
| Compatible With Grainger Part No. | 2CAV3, 2CAV4 |
| Compatible With Mfr. Part No. | 650719-C |
| Diaphragm Material | Viton |
| Fits Brand | Aro |
| Kit Components | 1 3/4" Balls, 93706-1 Key Lube Grease |
| Number Of Check Balls | 4 |
| Number Of Diaphragms | 2 |
| Number Of O-rings | 9 |
| Product Type | Fluid Section Service Kit |
| Valve Type | Ball |
Shipping Info:
| Ship weight (kg) | 0.45 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Product Variants
| Product | Model | Diaphragm Material | Max. Media Temp. | Min. Media Temp. | No. Of Seals | No. Of O-rings | Check Ball Material | Valve Type | Max. Media Intake Pressure | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
637310-AA | Santoprene | 212°F | -40°F | 18 | 6 | Santoprene | Ball | 120 psi | €1,203.56 | |
![]() |
637119-4B-C | Santoprene | 212°F | 40°F | 9 | 9 | - | Ball | 120 psi | €855.12 | |
![]() |
637161-4B-C | Santoprene | 200°F | 40°F | 17 | 17 | - | Ball | 120 psi | €852.46 | |
![]() |
637429-CC | Hytrel | 180°F | 10°F | 8 | 6 | Hytrel | Ball | 120 psi | €252.44 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
ARO 637138-63 Fluid End Service Kit
€2,891.17 /unit




