Part Location Diagram of 796112S Briggs and Stratton Lawn Mower Spark Plug
See part D-337 in the diagram
Replacing your Briggs and Stratton Engine Lawn Mower Spark Plug
( Grid squares measure 1x1 inch )

Lawn Mower Spark Plug 796112S

Manufactured by:
Briggs and Stratton
ERP Number:
ERP9140427
Part Number:
796112S
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

30 - 60 mins 

(57 rated repairs) ?

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Product Description

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This is an OEM replacement part and is sold individually. Its propose is to deliver an electric current from an ignition system to the combustion chamber of a gas fueled engine. It will ignite the air fuel mixture by the spark. Spark Plugs will usually have to gapped to the manufactures specifications found in the owners manual. Over time a Spark Plug will become fouled because the air/fuel ratio may be set wrong,worn piston rings, carbon build up and other factors. It is better to replace a fouled spark plug, rather then trying to clean it.

Frequently Purchased Together

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Troubleshooting

This part fixes the following symptoms:
  • Will Not Start
This part works with the following brands:
  • Briggs and Stratton
  • Toro
  • Lawn Boy
  • Simplicity
  • Cub Cadet
  • Craftsman
  • Murray
  • MTD
  • Husqvarna
This part works with the following products:
  • Engine
  • Lawn Mower
  • Lawn Tractor
  • Snow Blower
  • Leaf Blower / Vacuum
  • Tiller
  • Generator
  • Pressure Washer
  • Dethatcher
  • Lawn Tractor Accessories
Part# 796112S replaces these:
  • 492167
  • 492167S
  • 555132
  • 796112S
  • 796147
  • 802592
  • 802592S

Videos For installing this part.

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Replacing your Lawn Mower Spark Plug

Customer Part Reviews

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Questions & Answers

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What is replace spark plug for this model
Bevan For model number 128802 - October 27, 2022

Hello Bevan, Thank you for contacting us. We have researched the model you have provided and have found the part you are looking for is Part Number: 591868 Used After Code Date 11063000, Part Number: 796112S for the plug with Resistor. Part Number: 697451 is Used Before Code Date 11070100. We hope this helps, good luck with this repair!

eReplacementParts Team
October 27, 2022

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I need to get a spark plug.... Can I order that? Thank you!
Jennifer For model number 917 370411 - April 12, 2023

Hi Jennifer, Thank you for your question. The part number for the spark plug is 796112S. We hope this helps!

eReplacementParts Team
April 12, 2023

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No spark
Matt For model number 2009 12.5. hp verticle shaft - April 28, 2022

Hello Matt, Thank you for the question. With the information provided, we suggest cleaning or changing the Spark Plug, Part Number: 796112S. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!

eReplacementParts Team
April 28, 2022

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Need spark plug for this model and engine please!
Richard For model number 21038- 20332 128T02-3125-B1-10052557 - April 13, 2022

Hello Richard, Thank you for your inquiry. We have researched the model number you have provided and show the spark plug as part# 796112S. We hope this helps and if you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!

eReplacementParts Team
April 13, 2022

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Fuel tank carborator and plug and gaskets
Timothy For model number 917388190 - November 3, 2023

Hi Timothy, Thank you for your question. The part number for the spark plug is 796112S. The part number for the carburetor is 798758. The part number for the fuel tank is 494406. The part number for the air cleaner gasket is 271139S. The part number for the crankcase gasket is 799587. The part number for the breather gasket is 695890. The part number for the intake gaskets are 699649 and 792389. The part number for the valve gasket set is 498526. The part number for the crankcase gasket (.005 oversize) is 270895. The part number for the crankcase gasket (.009 thick) is 270896. We hope this helps!

eReplacementParts Team
November 3, 2023

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Has no spark
WENDA For model number 917.377791 - February 9, 2023

Hi Wenda, Thank you for your question. If there is no spark, you may have a loose, dirty, or disconnected spark plug. You will need to inspect the spark plug to make sure that it is fitted properly and if it is dirty, clean it. If it will still not work, you will need to replace it. The part number listed under your model number for the spark plug is 796112S. If you would like to place an order for it, please call our customer service line and anyone will be happy to assist you. We look forward to hearing from you!

eReplacementParts Team
February 9, 2023

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I bought an electronic ignition and I'm getting spark but it's a weak spark. The spark plug I got is an R45 acdelco could that be the reason
Wesley For model number 326431-0136-01 - January 29, 2022

Hello Wesley, Thank you for your inquiry. It could be the spark plug, the ignition module/magneto or the flywheel key. We would recommend checking these parts. Good luck with your repair.

eReplacementParts Team
January 29, 2022

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

30 - 60 mins 

(57 rated repairs) ?
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Sorry, we couldn't find any existing installation instruction that matched.

Engine would only run by using primer button.

Don from Wisconsin Dells, Wisconsin

17 of 17 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers, Socket set
Parts Used:
532194177, 795083, 796112S
Remove air cleaner, fuel tank then remove carb from tank, remove and replace diaphragm and gasket. Runs like champ.
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Hard to start and running poorly.

Mike from Midlothian, Texas

16 of 16 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Wrench set
Parts Used:
795477, 796112S, 698369
1. Remove air filters.
2. Remove fly wheel cover
3. Remove spark plugs
4. Remove carburetor
5. Install carburetor rebuild kit
6. Reinstall carburetor
7. Reinstall flywheel cover
8. Install new filters
9. Install new spark plugs.
10. Fire engine and adjust governor settings
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replace spark plug

Kirk from Saline, Michigan

15 of 15 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Socket set
Parts Used:
796112S
Remove the old plug. Check the gap on the new one. Screw it in. Easy!
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Wouldn\'t crank

John from Canton, Georgia

13 of 13 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Screw drivers, Socket set
Parts Used:
692189, 796112S
Grommet was missing. Ordered new grommet and spark plug Removed the old spark plug and gapped the new one at 0.030. After replacing these parts and adding gas, mower cranked after numerous pulls. After cutting the grass the mower now cranks on first pull. This mower had not been cranked in over a year. I also mixed \"Mechanic in a Bottle \" with the gas.
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No Spark

James from Phillips, Wisconsin

8 of 8 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Pliers, Screw drivers, Socket set, Wrench set
Parts Used:
796112S, 590454
Removed fan shroud
Remove and replace ignition coil and set clearance at 0.010
New spark plug gapped at 0.025
Fill gas tank and start...
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Air vane was missing when I purchased the used mower

Rich from Dearborn Heights, Michigan

8 of 8 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Screw drivers, Socket set
Removed starter rope from handle
Removed side discharge chute
Removed the gas tank
Removed the metal shroud
Installed and adjusted air vane
Reinstalled metal shroud
Reinstalled the gas tank
Installed the cover
Replaced the spark plug and air filter
Reinstalled side discharge chute ... Read more />Reinstalled starter rope
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Lawn mower wont run

mike from west fork, Arkansas

7 of 7 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Screw drivers, Socket set
Parts Used:
795083, 796112S, 694394
Took off carb, cleaned it, replaced diaphragm.
Remove the primer bulb and retainer.
Install the new bulb and retainer
Removed the old spark plug, gapped the new one at 0.030 and installed it
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carburetor was running too lean

Mike from Wewoka, Oklahoma

7 of 7 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Pliers, Screw drivers, Socket set
Parts Used:
491588B, 796112S, 498260
Cleaned carburetor and installed the carburetor overhaul kit. While I was in there I replace the air filter and spark plug. Runs like new now.
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Blown head gasket on 5 hp walk behind blower

Tom from Fort Wayne, Indiana

6 of 6 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Socket set, Wrench set
Parts Used:
796112S, 396424S, 272157S, 271466
Had to figure out the torque spec on a Briggs 5 hp, horizontal shaft engine but did a little internet searching and found it.

Remove the existing motor head carefully to ensure that the bolts were tracked for reassembly and not lost. Scrapped the existing gasket material from the head and the motor housing. Took a little time to wire wheel carbon from the piston and valves. Put the new gasket on the head and reassembled. Torqued it down to what I believe is the proper spec.

Changed the spark plug and air filter.

Started on the second pull.
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The Lawn Mower needed a general going over/ tune up

Jacob from ridgefield park, New Jersey

5 of 5 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Socket set, Wrench (Adjustable), Wrench set
Parts Used:
491588B, 796112S, 281505S
1. Removed the starter rope assembly by drilling out the rivets.
2. Removed the Screw with the ratchet pawls and replaced the missing one.
3. Re assembled and secured with rivets.
4. Replaced air filter by removing the single screw for the cover.
5. Replaced the spark plug.
6. Using a 13mm socket I removed the fuel bowl and cleaned with a rag.
7. Rinsed the bowl, and carburetor with carb cleaner. Then reassemble
8. Changed oil.
9. Removed the blade and sharpened
10. Reassembled and started it to make sure everything works.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP9140427
Manufacturer Part Number: 796112S
Brand Model Number Description
Briggs and Stratton 01052-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01052-0 (010520, 01052 0) Parts
Briggs and Stratton 01052-1 Pressure Washer - Briggs & Stratton Pressure Washer Model 01052-1 (010521, 01052 1) Parts
Briggs and Stratton 01053-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01053-0 (010530, 01053 0) Parts
Briggs and Stratton 01133-0 Generator - Briggs & Stratton Generator Model 01133-0 (011330, 01133 0) Parts
Briggs and Stratton 01282-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01282-0 (012820, 01282 0) Parts
Toro 03102 Lawn Mower
Toro 03104 Lawn Tractor - Lawn Tractor
Toro 03108 Lawn Mower - Riding Mower
Toro 03112 Lawn Mower
Toro 03113 Lawn Mower
Lawn Boy 0363 Lawn Mower - Lawn Boy Lawn Mower Model 0363 Parts
Lawn Boy 0425A Lawn Mower - Lawn Boy Lawn Mower Model 0425A Parts
Lawn Boy 0427 Lawn Mower - Lawn Boy Lawn Mower Model 0427 Parts
Craftsman 0505-0-580741380 Pressure Washer - 0505-0 - 580.741380, 1,500 Psi (Rev 3 5/20/96) Craftsman
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