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SKU:
NLT1Z00440
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Generac 0C3025 10 PSI Oil Pressure Switch 1/4-18 NC 2-Pack
$56.99
In Stock
$56.99
Sale price
$56.99
Regular price
This two-pack of normally closed 10 PSI oil-pressure switches replaces 0C3025 on compatible Generac, Guardian, Centurion, Watchdog, Carrier, Honeywell, Siemens, and Bryant 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
- Generac air-cooled generators from the late 1990s through selected 2010-era applications using 0C3025
- Generac Guardian portable and standby models specifying 0C3025
- Generac-branded Centurion, Watchdog, Carrier, Honeywell, Siemens, and Bryant generators with the same switch
- Generac model 0044510 and other GT-990 / GT-760 applications when the parts diagram lists 0C3025
Product Overview
A generator that shuts down for low oil pressure even though mechanical pressure is correct may have a failed switch or wiring fault. The switch should be replaced only after oil level and pressure are verified with the proper test method.
The 0C3025 design opens at approximately 10 PSI and uses 1/4-18 tapered threads with a ring-terminal connection. Later Generac versions use push-on wiring, so connector style and any required adapter must be checked before ordering.
Key Features & Performance
- Two normally closed oil-pressure switches
- 10 PSI nominal actuation
- 1/4-18 tapered thread
- Cross-reference coverage for several Generac supersessions
- For generator shutdown-protection circuits
Replaces Part Numbers
- 0C3025
- 0C30250SRV
- 0G6820
- 0G68200SRV
- 0L2917C
Common Uses
- Correcting a false low-oil shutdown after pressure is confirmed
- Replacing a switch that leaks through the terminal or body
- Keeping a spare switch for matched generator service
Technical Specifications
- Product Type: Generator Oil Pressure Switch
- Primary Application: Generac-family generators using 0C3025
- Package Quantity: 2 switches
- Condition: New
- Replacement Type: Aftermarket
- Quantity: 2
- Actuation: 10 PSI
- Contact State: Normally closed
- Thread: 1/4-18 tapered
- Connection: Verify ring-terminal style
Installation & Fitment
- Disable automatic starting and disconnect the battery
- Confirm actual engine oil pressure before replacement
- Use suitable thread sealant sparingly and do not block the oil port
- Tighten carefully because tapered threads can crack an aluminum engine block
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: Why is the switch normally closed? A: With the engine stopped it completes the low-pressure circuit; adequate running pressure opens the contacts.
Q: Can 0G6820 replace this without wiring changes? A: The function is similar, but connector styles can differ and may require approved terminals or a service kit.
Q: How do I confirm this is the correct part? A: Match 0C3025, 10 PSI rating, normally closed operation, 1/4-18 thread, terminal style, and generator wiring diagram.
Q: Is this supplied by the original equipment manufacturer? A: No. This is a new aftermarket item. Brand, model, and part numbers are used only to identify compatible applications.
Part Summary
keywords: Generac 0C3025 oil switch, 10 PSI generator pressure switch, Guardian low oil shutdown sensor, 1/4-18 normally closed switch, Generac oil switch 2 pack
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.