Fuel Pump Strainer & Sock Filter is used for pre-filtering fuel at the inlet of in-tank electric fuel pumps so rust, sediment and debris do not wear the pump. ISO 19438 is the reference cited for it on drawings, datasheets and purchase orders.
What ISO 19438 Means for Fuel Pump Strainer & Sock Filter
The dimensions in the table below are supplied to suit ISO 19438. Where the standard sets requirements for the finished appliance, device or system, compliance testing of that assembly stays with its manufacturer; we supply the metal mesh part to the drawing and can provide material certificates and dimensional reports with the shipment.
Fuel Pump Strainer & Sock Filter Dimensions
| Size | Outer diameter (mm) | Length (mm) | Micron rating (u00b5m) | Media | Inlet |
|---|---|---|---|---|---|
| Sock 60 | 28 | 60 | 60 | SS304 twill dutch | u00d8 11 push-on |
| Sock 90 | 30 | 90 | 60 | SS304 twill dutch | u00d8 12 push-on |
| Flat strainer | 45 | 95 | 70 | SS304 plain dutch | u00d8 14 clip |
| Motorcycle | 22 | 50 | 40 | SS316 twill dutch | u00d8 9 push-on |
Specifying Fuel Pump Strainer & Sock Filter Beyond the Standard
- Inlet fit: Push-on diameter and orientation must match the pump.
- Micron rating: 40–70 µm protects the pump without restricting flow.
- Media: Stainless dutch-weave resists ethanol fuels and does not swell like nylon.
When Fuel Pump Strainer & Sock Filter Is Not the Right Choice
Not the main fuel filter — a fine pressure-side filter is still needed.
