OUR VERDICT
ISO-A is the poppet-style hydraulic quick-connect found on tractors, loaders, dump trucks and plant machinery. Buy it to match an existing ISO-A half; it will not mate with ISO-B or flat face.
WHAT WE LIKE
- ISO 7241-1 Series A interchange, the poppet style used on ag and construction hydraulics
- Two-way shut-off: both halves seal at disconnect
- Case-hardened ball-lock sleeve
WORTH NOTING
- Connect and disconnect at zero pressure only
- Only couples with same-size ISO-A halves
Specifications
| Series | ISO-A (Series A interchange) |
|---|---|
| Temperature range | -40°F to 250°F |
| Max working pressure | 4000 PSI |
| Interchange | ISO 7241-A |
| Component | Coupler (socket) |
| Body size | 3/4" |
| Body material | Steel (zinc-plated) |
| Seal material | Buna-N (NBR) |
| Socket action | Manual sleeve |
| Valving | Valved both ends |
ISO 7241-A — the ISO-A ag/general-purpose pattern. Not interchangeable with ISO-B.Full interchange lookup →
Complete the connection
This is a coupler (socket) in the ISO 7241-A profile. It only mates with ISO 7241-A plugs (nipples) — any brand.