Generac
Generator

Model # 1338-1 Official Generac generator

Here are the diagrams and repair parts for Official Generac 1338-1 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.

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 127 parts  |

Oil BB3061

#NI05

All parts diagram

Oil

Part #BB3061

Replaced by #BB3061GS

?
Manufacturer substitution
This part replaces BB3061. Substitute parts can look different from the original.
This item is not returnable
$19.07
10% OFF Was : $21.19
In Stock
Rushing 78299
#6

Generator diagram

Rushing

Part #78299

Replaced by #192980GS

?
Manufacturer substitution
This part replaces 78299. Substitute parts can look different from the original.
$25.18
17% OFF Phone Price : $30.18
In Stock
Receptacle 68868
#13

Control panel diagram

Receptacle

Part #68868

Replaced by #705932

?
Manufacturer substitution
This part replaces 68868. Substitute parts can look different from the original.
In Stock
Decal 73054
#36

Generator diagram

Decal

Part #73054

Replaced by #73054GS

?
Manufacturer substitution
This part replaces 73054. Substitute parts can look different from the original.
In Stock
Valve 80270
#5

Generator diagram

Valve

Part #80270

Replaced by #192980GS

?
Manufacturer substitution
This part replaces 80270. Substitute parts can look different from the original.
$25.18
17% OFF Phone Price : $30.18
In Stock
Cap B4911
#6

Alternator diagram

Cap

Part #B4911

Replaced by #B4911GS

?
Manufacturer substitution
This part replaces B4911. Substitute parts can look different from the original.
This item is not returnable
In Stock
Phms 43181
#23

Control panel diagram

Phms

Part #43181

Replaced by #43181GS

?
Manufacturer substitution
This part replaces 43181. Substitute parts can look different from the original.
This item is not returnable
In Stock
Key B4627
#41

Generator diagram

Key

Part #B4627

Replaced by #B4627GS

?
Manufacturer substitution
This part replaces B4627. Substitute parts can look different from the original.
This item is not returnable
In Stock
Decal 77816
#32

Generator diagram

Decal

Part #77816

Replaced by #77816GS

?
Manufacturer substitution
This part replaces 77816. Substitute parts can look different from the original.
In Stock
Washer 22131
#18

Generator diagram

Washer

Part #22131

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

Tapping into a new feature in the Search Bar on Sears PartsDirect

Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Find out how to test and fix problems with the spark plug, stop wire, ignition coil and flywheel.…