Onan
Lawn & Garden Engine

Model # N52M-GA019/3411A Official Onan engine

Here are the diagrams and repair parts for Official Onan N52M-GA019-3411A 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 271 parts  |

Line 503-0874
#23

Fuel system group diagram

Line

Part #503-0874

Replaced by #30962

?
Manufacturer substitution
This part replaces 503-0874. Substitute parts can look different from the original.
This item is not returnable
$6.76
13% OFF Phone Price : $7.76
In Stock
Flat Washer 526-0214
#7

Governor and air housing group diagram

Flat washer

Part #526-0214

Replaced by #STD551025

?
Manufacturer substitution
This part replaces 526-0214. Substitute parts can look different from the original.
This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Plug 167-0291
#24

Ignition and breaker box group diagram

Plug

Part #167-0291

Replaced by #909

?
Manufacturer substitution
This part replaces 167-0291. Substitute parts can look different from the original.
This item is not returnable
In Stock
Screw 800-0050
#18

Oil base and gearcase group diagram

Screw

Part #800-0050

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

Screw 821-0002
#28

Carburetor parts group diagram

Screw

Part #821-0002

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

Plug 505-0057
#14

Oil system group diagram

Plug

Part #505-0057

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

Arm 150-1576
#4

Governor and air housing group diagram

Arm

Part #150-1576

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

Nut 870-0107
#13

Governor and air housing group diagram

Nut

Part #870-0107

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

Plug 505-0056
#19

Oil base and gearcase group diagram

Plug

Part #505-0056

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

Stud 520-0736
#8

Cylinder block group diagram

Stud

Part #520-0736

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

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

Repair guides for gas line trimmers

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

How to rebuild a line trimmer carburetor

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer fuel line

How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

Repair difficulty
Time required
 15 minutes or less

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

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

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.…