Part Location Diagram of 790848 Briggs and Stratton Vane-air
See part A-1386 in the diagram
( Grid squares measure 1x1 inch )

Vane-air 790848

Manufactured by:
Briggs and Stratton
ERP Number:
ERP9148750
Part Number:
790848
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

30 - 60 mins 

(2 rated repairs) ?

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Product Description

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This is an authentic OEM part. The Toro air vane is designed for use with many lawn mower engines. This plastic item pulls the choke open when the flywheel fan sends airflow from the air vane. You will need a wrench and a screwdriver for the installation. The air vane is sold individually.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Briggs and Stratton
  • Toro
  • Lawn Boy
  • Cub Cadet
  • Husqvarna
  • Simplicity
This part works with the following products:
  • Engine
  • Lawn Mower
  • Chipper Shredder
Part# 790848 replaces these:
  • 790848

Customer Part Reviews

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Average Rating (out of 5):
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Questions & Answers

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Coil
Billie For model number 12h802 1937-E1 - August 8, 2022

Hello Billie, thank you for your question. Based on the model number, the manufacturer recommends to order the Air Vane 790848 at the same time you order the Coil 590454. 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
August 8, 2022

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Does this engine utilize an Air Vane? If so, where does the air vane spring attach? Thanks, Tom
Thomas For model number 12H802-2677-B1 - November 12, 2022

Hello Thomas, Thank you for the question. The Air Vane Spring Part Number: 790849 attaches to the carburetor between the pins on the choke arm. Make sure to tighten the shoulder bolt. Attach the spring to the new vane. Make sure that the choke thermostat arm is positioned in the air vane hook and in line with the markings in front and the side. I hope this helps and good luck with your repair.

eReplacementParts Team
November 12, 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 

(2 rated repairs) ?
  • 1
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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 vane was broken and spring was missing.

Thomas from BROOMALL, Pennsylvania

3 of 3 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Wrench set
Parts Used:
790849, 790848
This mower belongs to my brother. Somehow, he broke the vane and lost the spring. And, it would not start. It was obvious that the vane was broken, so I ordered the part from ereplacementparts.com. After watching a YouTube video, it was easy to install. The video was instrumental in showing how to set the limits for the vane. Howeve r, the mower would not start. Adding a little gasoline to the carburetor made it run for a couple of seconds, but it would not stay running. So, I brought it to a guy who fixes mowers as a side job. He cleaned the carburetor, drained the tank, and filled it with fresh gasoline. It smoked a little in the beginning, but now runs fine. By the way, the YouTube video was produced by a regular guy, with no affiliation to any company.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP9148750
Manufacturer Part Number: 790848
Brand Model Number Description
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 10662 Lawn Mower - Insight Lawn Mower
Lawn Boy 10665 Lawn Mower - Insight Lawn Mower
Lawn Boy 10666 Lawn Mower - Insight Lawn Mower
Lawn Boy 10666C Lawn Mower - Insight Lawn Mower
Lawn Boy 10765 Lawn Mower - Insight Platinum Lawn Mower
Lawn Boy 10996 Lawn Mower - Insight Lawn Mower
Lawn Boy 10998 Lawn Mower - Insight Lawn Mower
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