Part Location Diagram of 691987 Briggs and Stratton Flywheel
See part B-23A in the diagram
( Grid squares measure 1x1 inch )

Flywheel 691987

Manufactured by:
Briggs and Stratton
ERP Number:
ERP9074689
Part Number:
691987
Original Equipment Manufacturer ?
  Works with your model  20668!
In Stock
Delivers in 3-5 Business Days!

A Bit Difficult 

1- 2 hours 

(2 rated repairs) ?
  Works with your model   20668!

Product Description

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This is an authentic Briggs & Stratton replacement part sourced from the original manufacturer for use with small engines. The flywheel is engaged by the starter motor when starting the engine. The flywheel contains magnets on the side that cause the ignition module to send an electric charge to the spark plug. The fan blades on the flywheel are used to cool the engine during use. This flywheel is a complete part assembly including the ring gear. This flywheel is available as an individual replacement part.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Briggs and Stratton
  • Toro
  • Cub Cadet
  • Lawn Boy
  • Craftsman
  • Simplicity
This part works with the following products:
  • Engine
  • Lawn Mower
  • Chipper Shredder
Part# 691987 replaces these:
492175, 492177, 691987, 692315, T492175, T492177,

Customer Part Reviews

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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.

A Bit Difficult 

1- 2 hours 

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

Flywheel cracked and sheared flywheel key

Tim from ELMHURST, Illinois

3 of 3 people found this instruction helpful.
Difficulty Level:
Difficult
Total Repair Time:
1- 2 hours
Tools:
Pliers, Socket set, Wrench (Adjustable)
Parts Used:
691987
Initial problem was a Briggs and Stratton 5HP lawn mower motor not turning over to start:
1. Initial idea was to take apart and clean carburetor which did not change status.
2. Removed engine covers and casing.
3. Removed Flywheel cup by gripping with a wrench just above blade under lawnmower and loosening bolt on top wi th socket (had to to go purchase 15/16th inch socket as this was just above the biggest in my set).
4. After visual inspection determined a crack was in flywheel.
5. Ordered parts (don\'t forget to order flywheel key and flywheel puller as these do not come with it).
6. Used flywheel puller to remove flywheel.
7. Placed new flywheel on mower and inserted flywheel key.
8. Replaced flywheel cup and engine covers.

My repair was a bit more extensive as I also removed valve and piston covers to clean engine build up as the valve was sticking due to this build up and I also sharpened the blade.

Engine runs like new now.
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split fly wheel,

Earl from WOODBRIDGE, Virginia

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Wrench set
Parts Used:
796335, 691987
Remove cowl and gas tank. Remove the split fly wheel and key replace old flywheel and key with new. Install gas tank and cowl. Easy peasy. lol
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Model Cross Reference

This part works with the following models:
ERP Number: ERP9074689
Manufacturer Part Number: 691987
Brand Model Number Description
Briggs and Stratton 01133-0 Generator - Briggs & Stratton Generator Model 01133-0 (011330, 01133 0) Parts
Cub Cadet 074R Lawn Mower - Cub Cadet Lawn Mower Model 074R/1990 Parts
Briggs and Stratton 097772-0101-01 Engine - Engine
Briggs and Stratton 097772-0110-01 Engine - Engine
Briggs and Stratton 097772-0110-02 Engine - Engine
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Briggs and Stratton 097772-0113-01 Engine - Engine
Briggs and Stratton 097772-0115-01 Engine - Engine
Briggs and Stratton 097772-0118-01 Engine - Engine
Briggs and Stratton 097772-0118-02 Engine - Engine
Briggs and Stratton 097772-0119-01 Engine - Engine
Briggs and Stratton 097772-0120-01 Engine - Engine
Briggs and Stratton 097772-0310-A2 Engine - Engine
Briggs and Stratton 097772-0313-A1 Engine - Engine
Briggs and Stratton 097772-0318-A2 Engine - Engine
Briggs and Stratton 097772-0319-A1 Engine - Engine
Briggs and Stratton 097772-0320-A1 Engine - Engine
Briggs and Stratton 097772-3101-01 Engine - Engine
Briggs and Stratton 097772-3110-01 Engine - Engine
Briggs and Stratton 097777-0102-01 Engine - Engine
Briggs and Stratton 097777-0111-01 Engine - Engine
Briggs and Stratton 097777-0114-01 Engine - Engine
Briggs and Stratton 097777-0116-01 Engine - Engine
Briggs and Stratton 097777-0121-01 Engine - Engine
Briggs and Stratton 097777-0122-01 Engine - Engine
Briggs and Stratton 097777-0311-A1 Engine - Engine
Briggs and Stratton 097777-0321-A1 Engine - Engine
Briggs and Stratton 097777-0322-A1 Engine - Engine
Briggs and Stratton 097777-0323-A1 Engine - Engine
Briggs and Stratton 097777-0324-A1 Engine - Engine