Generac Guardian 0A8584 OEM 10 PSI Normally Closed Oil-Pressure Switch, 1/8-27 NPT

Description

The Generac Guardian 0A8584 is a genuine OEM oil-pressure switch designed for select RV generator applications. With a 10 PSI actuation point, normally closed contacts, and 1/8-27 NPT threads, this component supports the compatible engine’s low-oil-pressure monitoring and protection system. Before purchasing, verify that this oil-pressure switch matches your generator’s specific model, serial number, engine, controller, and required configuration.

Generac Guardian 0A8584 Oil Pressure Switch Overview

The Generac Guardian 0A8584 oil-pressure switch is intended for compatible generator systems that require this specific OEM component. Its pressure rating, contact configuration, and threaded connection are important specifications to check when selecting a replacement.

Choosing the correct part number helps ensure that the replacement matches the generator’s required configuration. Do not select a switch based only on its appearance or thread size, as other compatibility factors may affect whether it is suitable for your equipment.

Key Product Features

• Genuine OEM component: Manufactured for applicable Generac equipment.
• 10 PSI actuation pressure: Specified actuation point for the switch.
• Normally closed contacts: Contact configuration specified for this component.
• 1/8-27 NPT threads: Tapered pipe-thread connection.
• RV generator application: Intended for select compatible RV generator systems.
• New condition: Supplied as a new switch.
• Single-unit package: Includes one oil-pressure switch.

Generac Guardian 0A8584 Product Specifications

Review the specifications below before placing your order.

These specifications identify the listed component and help you compare it with the requirements in your generator’s parts documentation.

Compatibility and Part Number Verification

The Generac Guardian 0A8584 is intended for select RV generator applications. However, the brand and general application alone do not establish compatibility with every Generac or Guardian generator.

Compatibility depends on several factors:

• Generator model: Confirm the exact model designation.
• Serial number: Use the serial number to identify the applicable parts configuration.
• Engine: Verify the engine application and its required oil-pressure switch.
• Controller: Check the controller configuration specified for your equipment.
• Terminal arrangement: Confirm that the switch’s required electrical connection matches the application.
• Pressure-switch configuration: Verify the required actuation pressure and contact arrangement.

Before ordering, confirm part number 0A8584 in the appropriate Generac parts diagram for your equipment. If the diagram lists a different part number, do not assume that this switch is interchangeable.

Checking the correct documentation before purchasing can help reduce the risk of ordering an incompatible replacement.

Installation and Safety Precautions

Replacing an oil-pressure switch involves both the generator’s electrical system and its engine-related components. Follow the applicable service manual and all manufacturer safety instructions for your specific equipment.

Before installation:

1. Disable the generator’s automatic startup function.
2. Disconnect the battery.
3. Allow the engine to cool before beginning work.
4. Verify that the replacement part matches the required specifications.
5. Follow the service manual for thread sealing, tightening, and electrical wiring.
6. Complete the required functional testing according to the applicable service instructions.

Important Thread and Installation Warning

The Generac Guardian 0A8584 uses 1/8-27 NPT tapered threads. Avoid overtightening the connection, as excessive tightening can damage threaded components. Use the sealing method and tightening procedure specified in the applicable service manual.

Do not guess the wiring connections or installation torque. Follow the correct service documentation for your generator, and use a qualified technician if you are unsure about the installation or testing procedure.

Why Verify the OEM Part Number?

An oil-pressure switch must match the specifications required by the equipment in which it is installed. The 10 PSI actuation point, normally closed contact configuration, and 1/8-27 NPT thread size are key identification details for the Generac Guardian 0A8584.

However, matching these specifications alone does not guarantee compatibility. Different generator models or configurations may require different components, electrical terminals, or operating specifications.

For the most reliable parts selection, use the generator model and serial number to locate the correct Generac parts diagram. Confirm that 0A8584 is the specified part before completing your purchase.

Frequently Asked Questions

1. What is the Generac Guardian 0A8584?

The Generac Guardian 0A8584 is a genuine OEM oil-pressure switch for select RV generator applications. It has a 10 PSI actuation point, normally closed contacts, and 1/8-27 NPT threads.

2. Is the Generac Guardian 0A8584 compatible with every Generac generator?

No. Compatibility depends on the generator model, serial number, engine, controller, terminal arrangement, and required pressure-switch configuration. Check the appropriate Generac parts diagram to confirm that part number 0A8584 is specified for your equipment.

3. What should I check before installing this oil-pressure switch?

Confirm the OEM part number and the required pressure-switch specifications. Before installation, disable automatic startup, disconnect the battery, and allow the engine to cool. Follow the applicable service manual for sealing, tightening, wiring, and functional testing. Avoid overtightening the tapered threads.

Order the Correct Generac Replacement Part

The Generac Guardian 0A8584 OEM oil-pressure switch provides the specified 10 PSI actuation point, normally closed contacts, and 1/8-27 NPT threads for applicable generator systems.

Review the product specifications and verify your equipment’s model and serial number before ordering. Confirming the part number in the appropriate Generac parts diagram is the best way to check that this replacement matches your generator’s requirements.