Generac
Lawn & Garden Engine

Model # EHC009521 Official Generac engine

Here are the diagrams and repair parts for Official Generac EHC009521 engine, 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 111 parts  |

Air Filter 78601
#47

Carburetor diagram

Air filter

Part #78601

Replaced by #78601GS

?
Manufacturer substitution
This part replaces 78601. Substitute parts can look different from the original.
$20.18
23% OFF Phone Price : $26.18
In Stock
Retainer A1720
#30

Complete long block assembly diagram

Retainer

Part #A1720

Replaced by #0D24890ESV

?
Manufacturer substitution
This part replaces A1720. Substitute parts can look different from the original.
$51.52
10% OFF Phone Price : $57.52
In Stock
Spring 88401
#31

Complete long block assembly diagram

Spring

Part #88401

Replaced by #0D24890ESV

?
Manufacturer substitution
This part replaces 88401. Substitute parts can look different from the original.
$51.52
10% OFF Phone Price : $57.52
In Stock
Gasket 91846
#39

Carburetor diagram

Gasket

Part #91846

Replaced by #G091846

?
Manufacturer substitution
This part replaces 91846. Substitute parts can look different from the original.
This item is not returnable
In Stock
Ring 88411
#3

Complete long block assembly diagram

Ring

Part #88411

Replaced by #0G43790SRV

?
Manufacturer substitution
This part replaces 88411. Substitute parts can look different from the original.
In Stock
Nut 77395
#58

Tank cradle diagram

Nut

Part #77395

Replaced by #G052857

?
Manufacturer substitution
This part replaces 77395. Substitute parts can look different from the original.
This item is not returnable
In Stock
Spring 86037
#30

Spark plug and idle coil diagram

Spring

Part #86037

Replaced by #0C3979

?
Manufacturer substitution
This part replaces 86037. Substitute parts can look different from the original.
$38.33
14% OFF Phone Price : $44.33
In Stock
Lawn & Garden Equipment Engine Bolt 78643
#50

Carburetor diagram

Lawn & garden equipment engine bolt

Part #78643

Replaced by #G078643

?
Manufacturer substitution
This part replaces 78643. Substitute parts can look different from the original.
This item is not returnable
In Stock
Crankshaft 83337A
#8

Complete long block assembly diagram

Crankshaft

Part #83337A

Replaced by #0G48660SRV

?
Manufacturer substitution
This part replaces 83337A. Substitute parts can look different from the original.
In Stock
Camshaft 98752
#18

Complete long block assembly diagram

Camshaft

Part #98752

Replaced by #0A98780SRV

?
Manufacturer substitution
This part replaces 98752. Substitute parts can look different from the original.
In Stock

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace the evaporator fan motor in a top-freezer refrigerator

How to replace the evaporator fan motor in a top-freezer refrigerator

The evaporator fan motor blows air across the evaporator coils and through the refrigerator cabinet for cooling. Replace…

Repair difficulty
Time required
 15 minutes or less
How to replace the compressor start relay in a top-freezer refrigerator

How to replace the compressor start relay in a top-freezer refrigerator

The compressor start relay starts the compressor and shuts it off if the motor overheats. Replace the start relay if it'…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…