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Spark Plug

Part Number: 591868
Briggs and StrattonTroy-Bilt
Availability: 25+ in stock
Price: $3.71
Ships within 1 business day

*This part replaces obsolete part #: and 799876.

Product Information
Manufacturer: Briggs and Stratton, Troy-Bilt
Product Number: 591868
Classification: Part
Weight: 0.10 lbs.
Shipping: Ships Worldwide
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.
Compatibility

This part is compatible with the following machines:

Briggs and Stratton
126M02-0111-B1 (126M0200) Engine
120H02-0100-B1 Engine
120H02-0100-D1 Engine
120H02-0108-B1 Engine
120H02-0109-D1 Engine
120H02-0111-D1 Engine
120H02-0112-B1 Engine
120H02-0112-D1 Engine
120H02-0113-B1 Engine
120H07-0110-D1 Engine
120H07-0114-D1 Engine
120K02-0110-E1 Engine
120K02-0111-E1 Engine
120K02-0361-E1 Engine
120K02-0362-E1 Engine
120K02-0368-E1 Engine
120K02-0418-E1 Engine
120K02-0445-E1 Engine
120K02-0528-E1 Engine
120K02-0529-E1 Engine
120K02-0534-E1 Engine
120K02-0535-E1 Engine
120K02-0591-E1 Engine
120K02-0646-E1 Engine
120K02-0649-E1 Engine
120K02-0677-E1 Engine
120K02-0655-E1 Engine
120L02-1068-F1 Engine
120T02-0110-B1 Engine
120T02-0110-E1 Engine
120T02-0111-B1 Engine
120T02-0111-E1 Engine
120T02-0581-B2 Engine
120T02-0811-B1 Engine
120T02-0811-E1 Engine
120T02-0821-B1 Engine
120T02-0821-E1 Engine
120T02-1043-B1 Engine
120T02-1057-B1 Engine
120T02-1097-B1 Engine
120T02-3811-B1 Engine
120T02-3821-B1 Engine
120T02-3865-B1 Engine
121H02-0100-B1 Engine
121H02-0100-D1 Engine
121H02-0105-B1 Engine
121H02-0110-D1 Engine
121H02-0113-B1 Engine
121H82-0111-B1 Engine
121K02-0110-E1 Engine
121K02-0113-E1 Engine
121K02-0115-E1 Engine
121K02-0116-B1 Engine
121K02-0116-E1 Engine
121K02-0117-E1 Engine
121K02-0118-E1 Engine
121K02-0291-E1 Engine
121K02-0306-E1 Engine
121K02-0307-E1 Engine
121K02-0316-E1 Engine
121K02-0345-E1 Engine
121K02-0349-E1 Engine
121K02-0355-E1 Engine
121K02-0410-E1 Engine
121K02-0411-E1 Engine
121K02-0436-E1 Engine
121K02-0625-E1 Engine
121K02-0710-E1 Engine
121K02-3710-B1 Engine
121K12-0111-E1 Engine
122H02-0100-B1 Engine
122H02-0100-D1 Engine
122H02-0110-D1 Engine
122H02-0112-D1 Engine
122H02-0116-B1 Engine
122H02-0117-D1 Engine
122H02-0119-B1 Engine
122H02-0119-D1 Engine
122H02-0120-B1 Engine
122H02-0122-B1 Engine
122H02-0122-D1 Engine
122H02-0129-B1 Engine
122H02-0131-B1 Engine
122H02-0133-B1 Engine
122H02-0134-B1 Engine
122H02-0135-B1 Engine
122H02-0199-B1 Engine
122H02-0220-B1 Engine
122H02-0871-B1 Engine
122H07-0115-B1 Engine
122H07-0118-D1 Engine
122H07-0123-D1 Engine
122H07-0126-B1 Engine
122H07-0127-B1 Engine
122H07-0221-D1 Engine
122H82-0124-01 Engine
122H82-0125-01 Engine
122H82-0128-01 Engine
122H82-0130-B1 Engine
122K02-0015-E1 Engine
122K02-0016-E1 Engine
122K02-0018-E1 Engine
122K02-0025-E1 Engine
122K02-0101-E1 Engine
122K02-0110-E1 Engine
122K02-0111-E1 Engine
122K02-0112-E1 Engine
122K02-0113-E1 Engine
122K02-0115-E1 Engine
122K02-0116-E1 Engine
122K02-0117-E1 Engine
122K02-0119-E1 Engine
122K02-0122-E1 Engine
122K02-0124-E1 Engine
122K02-0126-E1 Engine
122K02-0129-E1 Engine
122K02-0132-E1 Engine
122K02-0134-E1 Engine
122K02-0137-E1 Engine
122K02-0138-E1 Engine
122K02-0141-E1 Engine
122K02-0149-E1 Engine
122K02-0150-E1 Engine
122K02-0152-E1 Engine
122K02-0158-E1 Engine
122K02-0167-E1 Engine
122K02-0169-E1 Engine
122K02-0172-E1 Engine
122K02-0177-E1 Engine
122K02-0217-E1 Engine
122K02-0290-E1 Engine
122K02-0308-E1 Engine
122K02-0309-E1 Engine
122K02-0329-E1 Engine
122K02-0330-E1 Engine
122K02-0337-E1 Engine
122K02-0341-E1 Engine
122K02-0353-E1 Engine
122K02-0356-E1 Engine
122K02-0412-E1 Engine
122K02-0515-B1 Engine
122K02-0515-E1 Engine
122K02-0516-E1 Engine
122K02-0518-E1 Engine
122K02-0525-E1 Engine
122K02-0572-E1 Engine
122K02-0573-E1 Engine
122K02-0574-E1 Engine
122K02-0577-E1 Engine
122K02-0623-E1 Engine
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Engine
Questions & Answers

What spark plug(s) is recommended for this engine?
Bev for model number riggs and Stratton 128T02-3125-B1
Hello Bev, thank you for your inquiry. The correct spark plug is part number 796112S. We hope this information helps!
Repair Instructions: Submitted by Customers Like You
3 of 4 people found this instruction helpful
Tool Type:
Lawn Mower
Parts Used:
Wrench--Spark Plug - 89838S
Air Filter Cartridge - 491588S
Line-Fuel - 791891
Spark Plug - 591868
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Socket set
Toro mower was hard starting. After finally starting with sarter fliud, engine soon dies out.
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?
Thanks for voting and helping fellow customers!
Tool Type:
Lawn Mower
Parts Used:
Air Filter Cartridge - 491588S
Carburetor Overhaul Kit - 498260
Spark Plug - 591868
Repair Difficulty:
Medium
Time Spent Repairing:
More than 2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Carb cleaner spray
Hard starting and poor performance once finally running
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 carb 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?
Thanks for voting and helping fellow customers!
1 of 2 people found this instruction helpful
Tool Type:
Lawn Mower
Parts Used:
Air Filter Cartridge - 491588S
Air Cleaner Gasket - 795629
Spark Plug - 591868
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, Socket set
Lawn mower would not run.
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?
Thanks for voting and helping fellow customers!
Reviews
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  • perfect part
    The part arrived fast,and it worked perfectly for the mower,I will be ordering more parts as needed,Thanks
    Leslie - May 1, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: Briggs and Stratton, Troy-Bilt
    Product Number: 591868
    Classification: Part
    Weight: 0.10 lbs.
    Shipping: Ships Worldwide
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