Sandpiper 286-015-604 Overlay Diaphragm for U1F S1F G1F SB1 ST1 ST2 AODD Pumps
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Brand / Platform | Application |
|---|---|
| Sandpiper | U1F |
| Sandpiper | S1F, G1F, SB1/SB2 |
| Sandpiper | ET1, ST1, ST2, T1F - configuration dependent |
Product Overview
The diaphragm is a primary wear component separating the air and pumped-fluid sides of an AODD pump. Cracking, chemical attack, fatigue or deformation can reduce pumping performance or allow leakage. When servicing a diaphragm failure, inspect the companion diaphragm, plates, seals and air-valve condition.
Sandpiper's U1F repair documentation identifies 286-015-604 as an overlay diaphragm, typically used in pairs in the pump assembly. Cross-reference catalogs also list U1F, ET1, G1F, S1F, SB1/SB2 and ST1/ST2/T1F families depending on material configuration.
Key Features & Performance
- Overlay diaphragm for AODD pump service
- Sandpiper 286-015-604 reference
- Used as a matched wear component in diaphragm assemblies
- 1-inch pump-family application coverage
Technical Specifications
- Component type: overlay diaphragm
- AODD pump service part
- Quantity required by pump BOM should be confirmed
OE / Reference Numbers
- 286-015-604
Frequently Asked Questions
Is this an OEM part? This listing is for a replacement component. OE and manufacturer numbers are provided as fitment references and do not indicate original-manufacturer production unless the listing specifically states otherwise.
How do I verify fitment? Match the machine or engine model, the existing part number, and the mounting or connection details before ordering.