Part Location Diagram of 797521 Briggs and Stratton Gear-timing
See part C-741 in the diagram
( Grid squares measure 1x1 inch )

Gear-timing 797521

Manufactured by:
Briggs and Stratton
ERP Number:
ERP9139326
Part Number:
797521
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

15 - 30 mins 

(1 rated repair) ?

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Product Description

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It is a genuine OEM supplied replacement part that is specially designed for Briggs and Stratton engines that are commonly installed on Toro lawn and garden equipment. This is the timing gear for the crankshaft, its purpose is to help synchronize the rotation of the crankshaft and the camshafts so that the engine's valves open and close at the proper times during each cylinder's intake and exhaust strokes. Please note this durable metal timing gear is sold individually.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Briggs and Stratton
  • Toro
  • Cub Cadet
  • Lawn Boy
  • MTD
  • Craftsman
  • Husqvarna
  • Simplicity
This part works with the following products:
  • Engine
  • Lawn Mower
Part# 797521 replaces these:
795755,

Customer Part Reviews

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Questions & Answers

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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 

15 - 30 mins 

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

The motor lost compression.

John from Kent, Ohio

3 of 3 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set
Parts Used:
799875, 797521, 692232
Open the cylinder head and remove the timing gear. Reinstalled in reverse order and swapped the gaskets.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP9139326
Manufacturer Part Number: 797521
Brand Model Number Description
Briggs and Stratton 021022-00 Washer - Gas Power Washer
Briggs and Stratton 021027-00 Washer - Gas Power Washer
Lawn Boy 10640 Lawn Mower - 20In Mulching/Rear Bagging Lawn Mower
Lawn Boy 10640C Lawn Mower - 20In Mulching/Rear Bagging Lawn Mower
Lawn Boy 10641 Lawn Mower - 20In Mulching/Rear Bagging Lawn Mower
Lawn Boy 10641C Lawn Mower - 20In Mulching/Rear Bagging Lawn Mower
Lawn Boy 10642 Lawn Mower - 20In Mulching/Rear Bagging Lawn Mower
Lawn Boy 10647 Lawn Mower - 20In Mulching/Rear Bagging Lawn Mower
Lawn Boy 10666C Lawn Mower - Insight Lawn Mower
Briggs and Stratton 110P02 Engine - Briggs & Stratton Small Engine Model 110P02/0003-F1 (110P02/0003F1, 110P02/0003 F1) Parts
Briggs and Stratton 110P05 Engine - Briggs & Stratton Small Engine Model 110P05/0002-F1 (110P05/0002F1, 110P05/0002 F1) Parts
Briggs and Stratton 111P02 Engine - Briggs & Stratton Small Engine Model 111P02/0007-F1 (111P02/0007F1, 111P02/0007 F1) Parts
Briggs and Stratton 111P02-0002-F1 Engine - Engine
Briggs and Stratton 111P02-0003-F1 Engine - Engine
Briggs and Stratton 111P02-0004-F1 Engine - Engine
Briggs and Stratton 111P02-0005-F1 Engine - Engine
Briggs and Stratton 111P02-0019-F1 Engine - Engine
Briggs and Stratton 111P02-0110-F1 Engine - Engine
Briggs and Stratton 111P02-0111-F1 Engine - Engine
Briggs and Stratton 111P02-0112-F1 Engine - Engine
Briggs and Stratton 111P02-0113-F1 Engine - Engine
Briggs and Stratton 111P02-0114-F1 Engine - Engine
Briggs and Stratton 111P02-0114-F2 Engine - Engine
Briggs and Stratton 111P02-0116-F1 Engine - Engine
Briggs and Stratton 111P02-0118-F1 Engine - Engine
Briggs and Stratton 111P02-0130-F1 Engine - Engine
Briggs and Stratton 111P02-0131-F1 Engine - Engine
Briggs and Stratton 111P02-0132-F1 Engine - Engine
Briggs and Stratton 111P02-0133-F1 Engine - Engine
Briggs and Stratton 111P02-0693-F1 Engine - Engine