Part Location Diagram of 591868 Briggs and Stratton Plug-spark
See part B-337 in the diagram
( Grid squares measure 1x1 inch )

Plug-spark 591868

Manufactured by:
Briggs and Stratton
ERP Number:
ERP9983505
Part Number:
591868
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

1- 2 hours 

(4 rated repairs) ?

Does this part fit my model?

Need help finding your model number?

Product Description

?

This replacement spark plug is a genuine OEM item that is used with Briggs and Stratton engines. A spark plug delivers electric current from an ignition system to an internal combustion engine. After time spark plugs will become dirty or fouled eventually requiring replacement. This high quality item is sold individually. You should gap your spark plug according to the owners manual of the outdoor product you have.

Troubleshooting

This part works with the following brands:
  • Briggs and Stratton
  • Troy-Bilt
This part works with the following products:
  • Engine
Part# 591868 replaces these:
799876,

Customer Part Reviews

?
5.0
Average Rating (out of 5):
★★★★★
★★★★★
(3 Reviews)
Click to filter by ratings:
  • 5 stars
    3
  • 4 stars
    0
  • 3 stars
    0
  • 2 stars
    0
  • 1 star
    0
  • 1
Sort by:  
Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.

Questions & Answers

?

Our customer Service team is at the ready daily to answer your part and product questions.

Be the first to ask our experts a question about this part!

Ask our Team

We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.

Does this fit my product?

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 

1- 2 hours 

(4 rated repairs) ?
  • 1
Sort by:  
Sorry, we couldn't find any existing installation instruction that matched.

Hard starting and poor performance once finally running

Philip from FORT WAYNE, Indiana

9 of 9 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
More than 2 hours
Tools:
Pliers, Screw drivers, Socket set, Wrench set
Parts Used:
491588B, 591868, 498260
Removed old spark plug, correctly gapped and re-installed new spark plug purchased from e-replacementparts.com.
Removed old, dirty air filter, airbox assy. and gummed-up carburetor from engine. Dis-assembled airbox and carb completely - cleaning all the parts thoroughly with carb cleaner spray.
Re-assembled freshly cleaned car b with new carb overhaul kit from e-replacementparts.com.
Re-installed overhauled carb and airbox assy. back onto engine. Re-installed new air filter purchased from e-replacementparts.com and adjusted carb to specs.
Lawnmower engine now starts easily and has plenty of power!
Did you find this story helpful?
Thank you for voting!

Lawn mower would not run.

Harvey from Long Prairie, Minnesota

7 of 7 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers, Socket set
Parts Used:
491588B, 591868, 795629
Check flywheel key, remove spark plug and air cleaner. Replace gasket between air filter holder and carburetor. Replace spark plug and gap at 0.30
Did you find this story helpful?
Thank you for voting!

Toro mower was hard starting. After finally starting with sarter fliud, engine soon dies out.

Kelvin from Hilo, Hawaii

5 of 5 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, 591868, 89838S, 791891
1. Remove top cover.
2. Remove air filter cover and cartridge.
3. Drained fuel then removed old fuel line.
4. Used carburetor cleaner to clean carburetor, spraying fuel inlet and choke.
5. Installed new fuel line with filter. (old fuel line did not have a filter)
6. Installed new air filter with cover.
7. Remove and installed new spark plug gapped it at 0.030.
8. Replaced top cover.
9. Fill fresh, non-ethanol fuel.
10. Crank till start.
Did you find this story helpful?
Thank you for voting!

Mower needed a new spark plug.

Joseph from LANDENBERG, Pennsylvania

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers, Socket set
Parts Used:
591868
removed old plug; inserted new plug; tightened new plug
Did you find this story helpful?
Thank you for voting!
  • 1