Model # 5940-0 Official Generac generator

Here are the diagrams and repair parts for Official Generac 5940-0 generator, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

Click a diagram to see the parts shown on that diagram.
In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 206 parts |

Generator Receptacle, 20-amp, 120-volt 0D4968

#80

Maine sub assy diagram

Generator receptacle, 20-amp, 120-volt

Part #0D4968

This item is not returnable

$27.87

In Stock

Qty

Generator Engine Crankcase Cover Gasket 0G84420115

#11

Crankcase cover diagram

Generator engine crankcase cover gasket

Part #0G84420115

This item is not returnable

$20.77

In Stock

Qty

#10

Cylinder head diagram

Generator breather tube

Part #0G84420103

This item is not returnable

$3.69

In Stock

Qty

Carburetor diagram

Generator carburetor assembly

Part #0J2451

$80.24 |

7% OFF Phone Price : $86.24

In Stock

Qty

Generator air filter base gasket

Part #0G84420156

This item is not returnable

$2.16

In Stock

Qty

#52

Maine sub assy diagram

Generator fuel shut-off valve

Part #0J0974

$26.49 |

18% OFF Phone Price : $32.49

In Stock

Qty

Carburetor diagram

Generator carburetor gasket

Part #0G9916

This item is not returnable

$2.16

In Stock

Qty

Carburetor diagram

Generator carburetor insulator gasket

Part #0G84420144

This item is not returnable

$2.16

In Stock

Qty

Carburetor diagram

Generator engine fuel line clamp

Part #048031B

This item is not returnable

$4.26

In Stock

Qty

Crankcase diagram

Governor shaft

Part #0G84420220

$10.57

In Stock

Qty

Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

Why isn't my cooktop's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

Why do my cooktop's spark igniters keep clicking?

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Repair difficulty

Time required

45 minutes or less

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

Repair difficulty

Time required

30 minutes or less

Articles and videos for gas cooktops

How is cooking on an electric range different than cooking on a gas stove?

Model # 5940-0 Official Generac generator

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

Why isn't my cooktop's gas burner heating properly?

Why do my cooktop's spark igniters keep clicking?

Repair guides for gas cooktops

How to replace a spark igniter switch on a gas cooktop

How to replace a spark module on a gas cooktop

Articles and videos for gas cooktops

How is cooking on an electric range different than cooking on a gas stove?

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

How to clean grates and burners on a gas cooktop video

Parts & More

Stay Connected

Quick links

Let us help you

More resources