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SKU:
NLT1Z03619
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Onan Honeywell Generator 1 PSI Pressure Switch 0309-0717 83391-1-01
$60.99
In Stock
$60.99
Sale price
$60.99
Regular price
This generator pressure switch replaces 0309-0717, 309-0717, 83391, and 83391-1-01 on compatible Onan and Honeywell generator systems.
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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.
Compatible equipment / model
- Onan generator systems specifying 0309-0717 or 309-0717
- Selected Onan MDK-series diesel generator applications
- Honeywell generator systems specifying 83391 or 83391-1-01
Product Overview
A generator that shows a pressure-related shutdown, will not stay running, or has a leaking or failed switch may need this part after pressure and wiring have been properly tested. The switch reports system pressure to the control circuit; it does not create pressure.
Match the threads, connector, pressure setting, and original number before installation.
Key Features & Performance
- Replacement pressure-sensing switch
- Electrical connection for generator controls
- Threaded installation
- Built for matching Onan/Honeywell applications
- Useful for restoring a failed pressure signal
Replaces Part Numbers
- 0309-0717
- 309-0717
- 83391
- 83391-1-01
Common Uses
- Replacing a leaking pressure switch
- Repairing an open or intermittent pressure signal
- Resolving a confirmed switch-related shutdown fault
Technical Specifications
- Product Type: Generator pressure switch
- Connection: Threaded pressure port and electrical terminal
- Application: Generator monitoring/control circuit
- Replacement Type: Aftermarket
Installation & Fitment
- Shut down and isolate the generator before service
- Confirm actual system pressure with the proper test procedure
- Match thread type and switch rating
- Use approved thread sealant without blocking the port
- Test for leaks and correct shutdown operation
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, connector, dimensions, installed options, and previous repairs can affect fitment. Compare the original component and reference information before purchase.
Frequently Asked Questions
Q: Will this fix a low-pressure shutdown? A: Only if the switch or its connection is faulty. Actual low pressure must be diagnosed before replacing the switch.
Q: Does it fit every Onan generator? A: No. Match one of the listed reference numbers and verify the pressure and thread specifications.
Q: Can the switch leak? A: Yes. Leakage at the body or terminal area is a common reason for replacement.
Q: What pressure rating should I verify? A: This switch is commonly listed as normally closed with a 1 PSI actuation point and 1/8-27 NPT thread; match those details to the original.
Q: Is this an original-equipment part? A: No. This is an aftermarket item. Brand, model, and part numbers identify fitment only; compare the original part and the listing details before ordering.
Part Summary
keywords: Onan 0309-0717 pressure switch, Honeywell 83391-1-01 replacement, generator pressure shutdown sensor, MDK diesel generator switch, 309-0717 direct replacement
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.