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Generac
Lawn & Garden Engine

Model # EHC040480 Official Generac engine

Here are the diagrams and repair parts for Official Generac EHC040480 engine, 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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ALL PARTS
Showing 10 of 119 parts  |
Filtter 78602
#48

Carburetor diagram

Filtter

Part #78602

Replaced by #G078602

?
Manufacturer substitution
This part replaces 78602. Substitute parts can look different from the original.
This item is not returnable
$2.87 | 
26% OFF Phone Price : $3.87
In Stock
Switch 99236
#5

Spark plug/ oil filter diagram

Switch

Part #99236

Replaced by #0D9235BSRV

?
Manufacturer substitution
This part replaces 99236. Substitute parts can look different from the original.
$59.23 | 
9% OFF Phone Price : $65.23
In Stock
Spring 88401
#31

Complete long block 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
Clamp 48031C
#61

Flywheel diagram

Clamp

Part #48031C

Replaced by #691038

?
Manufacturer substitution
This part replaces 48031C. Substitute parts can look different from the original.
This item is not returnable
$5.43
In Stock
Valve 90081
#38

Complete long block diagram

Valve

Part #90081

Replaced by #0D24890ESV

?
Manufacturer substitution
This part replaces 90081. Substitute parts can look different from the original.
$51.52 | 
10% OFF Phone Price : $57.52
In Stock
Cover 78608A
Cover

Part #78608A

Replaced by #078608B

?
Manufacturer substitution
This part replaces 78608A. Substitute parts can look different from the original.
$63.82
In Stock
Valve 90082
#37

Complete long block diagram

Valve

Part #90082

Replaced by #0D24890ESV

?
Manufacturer substitution
This part replaces 90082. Substitute parts can look different from the original.
$51.52 | 
10% OFF Phone Price : $57.52
In Stock
Generac Lawn & Garden Equipment Engine Flywheel 0C8917ASRV
#79

Flywheel diagram

Generac lawn & garden equipment engine flywheel

Part #0C8917ASRV

$191.08
In Stock
Washer 85953
#22

Spark plug/ oil filter diagram

Washer

Part #85953

Replaced by #G085953

?
Manufacturer substitution
This part replaces 85953. Substitute parts can look different from the original.
$21.14
In Stock
Rocker Cover 88412
#48

Complete long block diagram

Rocker cover

Part #88412

Replaced by #G088412

?
Manufacturer substitution
This part replaces 88412. Substitute parts can look different from the original.
$21.89
In Stock

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These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

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Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

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Repair difficulty
Time required
 15 minutes or less

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

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