Adjustable Diaphragm Pressure Switch PT1/4 0.1-1Mpa QPM11-NO compatible with Ram QPM11
Normally Open (NO) adjustable diaphragm pressure switch with a 0.1-1.0 MPa range and PT1/4 thread.
Key facts
- Part type
- Pressure Switch
- Type
- Aftermarket replacement
Compatibility matrix
Only models verified by our team are listed| Parts for | Model | This part |
|---|---|---|
| Ram | ram QPM11 | Fits |
Only the models listed above have a confirmed catalog fit. If yours is absent, compatibility is unknown, not ruled out. Compare the exact model identifier and any published dimensions or connectors before ordering.
Where to find your model number
- Ram: Use your 17-character VIN. It's on the driver-side dashboard at the base of the windshield and on the driver's door jamb sticker. The year is in the 10th character. Also check your registration or the owner's manual.
General manufacturer guidance: exact label position can vary by model.
Pressure Switch specifications
- Pressure Range
- 0.1-1.0 MPa (Adjustable)
- Thread Size
- PT1/4 (02)
- Medium
- Compressed Air / Hydraulic Oil
- Working Voltage
- AC 110V/220V, DC 12V/24V
- Protection Rating
- IP54
- Max Pulse Rate
- 200 cycles/min
Installation guide - General replacement guidance
General guidance for this part type - always follow your device manual- Basic hand tools, only if your manual requires them
- If anything does not fit without force, stop and recheck the model on this page.
- Keep the old part until the new one is confirmed working.
- 1Switch off and unplug. Disconnect the device from power and let hot parts cool.
- 2Find the part. Check your device manual for the access panel, latches or screws; photograph each step as you go.
- 3Remove the old part. Note its orientation and any connectors, and release connectors by their plug body, never the wires.
- 4Compare and fit. Hold the old and new parts side by side, then fit the new one the same way round without forcing it.
- 5Reassemble and test. Refit covers, reconnect power and run a short test before regular use.
This is general guidance for the part type, not a model-specific procedure. If the part does not fit without force, stop and recheck compatibility.
Maintenance check
Signs it's time to replace
- 01Machine will not fill or stops mid-cycle
- 02Error codes for water level
- 03Pump or compressor cycles on and off erratically
12 month warranty on every part
Every part we sell is covered for 12 months from delivery. If it fails in normal use, we replace it or refund you , claim it straight from your order page.
Customer reviews
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Questions & answers
+Which models does this pressure switch fit?
Our team verified it for ram QPM11. The full list is in the compatibility table above.
+How do I make sure it fits my exact model?
Find the model number on your device label and compare it with the table above. Our fit guarantee covers verified models.
+Is it hard to install?
Install difficulty: Advanced · mechanical experience needed. Step by step instructions are on this page.
+How fast will it arrive?
US orders arrive in 7 to 15 business days with free shipping. Other countries are shown at checkout.
+Is there a warranty?
Yes, a 12-month warranty is included, and you can extend it at checkout. Returns are accepted within 30 days.