Specification profile · not tested by us
JACO 4X4 Auto-Stop Tire Deflators (Adjustable 10–30 PSI)
Automatic (preset) · Adjustable 10–30 PSI · $39.95 · stated accuracy ±2 PSI
Manufacturer images
JACO’s own product photographs. We have not photographed this product ourselves, so these show it as the manufacturer presents it.




Published specifications
Read from the manufacturer’s listing. A dash means the manufacturer does not publish that field — we do not estimate it.
| Type | Automatic (preset) |
|---|---|
| Stop pressure | Adjustable 10–30 PSI |
| Stops by itself | Yes |
| Gauge included | No |
| Stated stop-pressure accuracy | ±2 PSI |
| Valve connection | Screw-on valve |
| In the box | Set of 4 |
| Hose | — |
| Published price | $39.95 |
| Manufacturer says it suits | off-roaders |
| Claimed stop accuracy | ±2 PSI |
What JACO claims
These are the manufacturer’s own claims, quoted from its listing. They are not our measurements — we have not tested this unit. On the inflators we have tested, our own fill times are published in the review instead.
- All four tires air down automatically in minutes. Accurate to +/- 2 PSI.
- No gauges, no guesswork. Just screw them on and walk away.
Other JACO models we hold specifications for
Features the manufacturer lists
- Target pressure settable from 10–30 PSI
- One screws onto each valve stem; all four tires air down together
- Auto-stop and hands-free
- Machined brass with an OD green anodised finish
- Zippered neoprene storage pouch
- Set of four deflators
