Generac
Generator

Model #8749 Generac alternator

Here are the diagrams and repair parts for Generac 8749 alternator, 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.

Save to my profile

Showing 10 of 40 parts

Screw

#22

Alternator Diagram

Screw

Part #56892

The manufacturer no longer makes this part, and there's no substitute part

Binding Post

#8

Control panel Diagram

Binding post

Part #25367GS
?
Manufacturer substitution
This part replaces 25367. Substitute parts can look different from the original.
This part replaces 25367
$21.67

In Stock

Cap Screw

#9

Alternator Diagram

Cap screw

Part #STD523107
?
Manufacturer substitution
This part replaces 22142. Substitute parts can look different from the original.
This part replaces 22142
This item is not returnable
$2.49

In Stock

Screw

#21

Alternator Diagram

Screw

Part #59635

The manufacturer no longer makes this part, and there's no substitute part

Screw

#10

Alternator Diagram

Screw

Part #59637GS
?
Manufacturer substitution
This part replaces 59637. Substitute parts can look different from the original.
This part replaces 59637
This item is not returnable
$2.58

In Stock

Fuse

#5

Control panel Diagram

Fuse

Part #22668

The manufacturer no longer makes this part, and there's no substitute part

Screw

#23

Alternator Diagram

Screw

Part #DP59634
?
Manufacturer substitution
This part replaces 59634. Substitute parts can look different from the original.
This part replaces 59634
This item is not returnable
$2.16

In Stock

Lock Washer, 8-pack

#4

Alternator Diagram

Lock washer, 8-pack

Part #STD551131
?
Manufacturer substitution
This part replaces 22129. Substitute parts can look different from the original.
This part replaces 22129
This item is not returnable
$2.43

Back Order

Flat Washer, 8-pack

#7

Alternator Diagram

Flat washer, 8-pack

Part #STD551025
?
Manufacturer substitution
This part replaces 22145. Substitute parts can look different from the original.
This part replaces 22145
This item is not returnable
$2.75

In Stock

Hex Nut

#12

Control panel Diagram

Hex nut

Part #22471

The manufacturer no longer makes this part, and there's no substitute part