Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
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.

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

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 198 parts  |
Generator Carburetor Gasket 078631
#26

Engine assy diagram

Generator carburetor gasket

Part #078631

Replaced by #G078631

?
Manufacturer substitution
This part replaces 078631. Substitute parts can look different from the original.
This item is not returnable
$6.86
In Stock
Generator Handle Stop Retainer 0G5442
#62

Frame assy diagram

Generator handle stop retainer

Part #0G5442

This item is not returnable
$2.16
In Stock
Generator Fuel Shut-off Valve 0H3419
#43

Frame assy diagram

Generator fuel shut-off valve

Part #0H3419

This item is not returnable
$14.46
In Stock
Generator Air Filter Cover 078608B
#24

Engine assy diagram

Generator air filter cover

Part #078608B

$63.82
In Stock
Keeper 0C3592
#49

Block assy diagram

Keeper

Part #0C3592

This item is not returnable
$2.16
In Stock
Flyweight 0C4603
#52

Block assy diagram

Flyweight

Part #0C4603

This item is not returnable
$2.16
In Stock
Voltage Regulator 0H2579
#2

Frame assy diagram

Voltage regulator

Part #0H2579

$49.09
In Stock
Hose Clamp 0G3662B
#50

Engine assy diagram

Hose clamp

Part #0G3662B

This item is not returnable
$6.29
In Stock
Screw #8 0G8382
Screw #8

Part #0G8382

This item is not returnable
$2.16
In Stock
Generator Wheel 0H4420
#24

Frame assy diagram

Generator wheel

Part #0H4420

$32.98 | 
15% OFF Phone Price : $38.98
In Stock

Repair guides for canister vacuums

How to replace a vacuum suction motor

How to replace a vacuum suction motor

The suction motor on a vacuum creates the draw of air at the cleaning head that picks up dirt. If the vacuum won't run, …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a vacuum power head ribbed drive belt

How to replace a vacuum power head ribbed drive belt

Some canister vacuums have a ribbed drive belt that spins the brush roll on a power brush attachment. If the brush roll …

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a vacuum power head cogged drive belt

How to replace a vacuum power head cogged drive belt

If the power brush isn't working well because the cogged drive belt is slipping, take a few minutes to replace the belt.…

Read more
Repair difficulty
Time required
 15 minutes or less

Parts & More