Generac
Generator

Model # XG4000-5778-0 Official Generac generator

Here are the diagrams and repair parts for Official Generac XG4000-5778-0 generator, as well as links to manuals and error code tables, if available.

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

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Model diagram and schematic

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Showing 10 of 198 parts  |

Generator Breather Tube 090947A
#52

Engine assy diagram

Generator breather tube

Part #090947A

This item is not returnable
$11.22
15% OFF Phone Price : $13.22
In Stock
Generator Fuel Shut-off Valve Bezel 0H2142
#40

Frame assy diagram

Generator fuel shut-off valve bezel

Part #0H2142

This item is not returnable
In Stock
Generator Fuel Gauge 0H1345
#68

Frame assy diagram

Generator fuel gauge

Part #0H1345

In Stock
Axle Pin 0H1129
#25

Frame assy diagram

Axle pin

Part #0H1129

This item is not returnable
In Stock
Gasket 091846
#42

Engine assy diagram

Gasket

Part #091846

Replaced by #G091846

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Manufacturer substitution
This part replaces 091846. Substitute parts can look different from the original.
This item is not returnable
In Stock
Voltage Regulator 0H2579
#2

Frame assy diagram

Voltage regulator

Part #0H2579

In Stock
Plug 076329A
#48

Block assy diagram

Plug

Part #076329A

This item is not returnable
In Stock
Generator Air Filter Cover 078608B
#24

Engine assy diagram

Generator air filter cover

Part #078608B

In Stock
Fuel Hose 0H3455A
#21

Engine assy diagram

Fuel hose

Part #0H3455A

In Stock
Engine 0H3439
#9

Frame assy diagram

Engine

Part #0H3439

In Stock

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