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81432-9439-90 Briggs and Stratton Engine - Overview

Diagrams for 81432-9439-90

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Key-flywheel – Part Number: 222698S
$6.40
In Stock
Key-flywheel
★★★★★
★★★★★
(1)
Part #222698S
This is a Genuine OEM replacement part used on a variety of Lawn and Garden equipment. The key helps to secure Flywheel in place. This is a Metal Key and it is Sold Individually. You would need Pliers to replace this item.
Seal-oil – Part Number: 299819S
$7.47
In Stock
Seal-oil
Part #299819S
This OEM Oil Seal is an individually sold rubber part which is attached around the axis shaft on the crankcase housing to provide a proper seal. A broken seal will lead to a leak, and the part should be replaced. Installation is rated as "Medium" difficulty by customers, and will require a screwdriver, wrenchset and seal puller. Refer to your make, model and diagrams to ensure you've chosen the correct part. This model comes in black and grey.
Gasket-intake – Part Number: 27355S
$6.40
In Stock
Gasket-intake
Part #27355S
This is an authentic manufacturer sourced replacement part designed for use with a variety of lawn and garden equipment. This carburetor intake gasket which provides an air tight seal for the carburetor. Over time gaskets tend to deteriorate and would need to be replaced. It is made out of compound material and it is sold individually. You would need a screwdriver to replace this item.
Line-fuel – Part Number: 791745
$16.54
In Stock
Line-fuel
Part #791745
This fuel line is compatible with several different makes and models of small engine equipment and is sold as an individual part. Equipped with the securing clamp, this rubber fuel line is used to transfer fuel from the fuel tank to the carburetor, and over time and due to exposure of gas, this fuel line can become brittle and crack, requiring a replacement. If you find your equipment is performing worse, check the fuel line for any visible signs of damage. To replace the fuel line, you will need to disconnect the spark plug and drain the fuel from your equipment, before simply removing the old line and installing the new one and reassembling the rest of the motor.
Gasket-breather – Part Number: 27549S
$6.40
In Stock
Gasket-breather
Part #27549S
The Breather Gasket is OEM and used to provide an airtight seal for the breather assembly. It is a gray part, attached between the breather cap and engine. Installation is rated "Easy" and will require a wrench set and socket set. If broken, damaged, or worn due to fatigue, there may be oil leaking from it, and the engine may be running rough from an unwanted vacuum sucking in air. If this happens, replace the part. Refer to your make, model and diagrams to ensure this is the correct part for you.
Engine Spark Plug Boot – Part Number: 66538S
$6.40
In Stock
Engine Spark Plug Boot
Part #66538S
This spark plug boot is a genuine OEM Briggs & Stratton replacement designed to fit securely over the spark plug, protecting the connection from moisture, dirt, and debris. Its durable, elbow-style design helps ensure reliable ignition and easy installation, making it an ideal replacement when a cracked, loose, or worn boot causes hard starting, misfires, or inconsistent engine performance.
Switch-rotary – Part Number: 692309
$29.40
In Stock
Switch-rotary
★★★★★
★★★★★
(1)
Part #692309
This on-off switch fits Briggs and Stratton engines. This is a genuine part supplied from original manufacturer. This switch controls the on-off function of the engine. It has a plastic knob with metal terminals and is sold individually. To complete this repair you will need a wrench to remove housing.
Engine Air Cleaner Cartridge Filter – Part Number: 396424S
$20.27
In Stock
Filter-pre Cleaner – Part Number: 271466
$6.40
In Stock
Filter-pre Cleaner
Part #271466
This is an OEM approved replacement part designed for gas trimmers/brush cutters. Its purpose is to filter out dust and debris from the air that goes into the unit. Over time it will get dirty and clogged restricting the airflow eventually requiring replacement. Please note this high quality foam air cleaner element is sold individually.
Clamp-hose – Part Number: 791850
$6.40
In Stock
Clamp-hose
Part #791850
This is a genuine manufacturer-sourced part which is designed for use on lawn and garden equipment. It is an identical replacement for a missing or a damaged clamp that is used to secure the hose. Keep in mind this high-quality product is made of durable metal and is sold individually. Please make sure to check the appropriate diagrams for your model for the correct location and application of this hardware.
Armature-magneto – Part Number: 591420
$62.60
In Stock
Armature-magneto
★★★★★
★★★★★
(1)
Part #591420
This replacement armature-magneto is specially designed for use with Briggs and Stratton engines commonly installed on Toro lawn and garden equipment. It is an authentic part sourced directly from original equipment manufacturer. The armature-magneto also known as an ignition module produces pulses of high voltage for the spark plugs. This item includes (1) armature-magneto and (1) lead wire per order. To complete this repair you will need screwdriver set.
Gasket-air Cleaner – Part Number: 271139S
$6.40
In Stock
Gasket-air Cleaner
Part #271139S
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Could not keep an aftermarket muffler on the engine.
15 of 20 people found this instruction helpful.
  • Richard from KERNERSVILLE, NC
  • Really Easy
  • 15 - 30 mins
  • Wrench set
Once I determined what OEM muffler I needed, installation was relatively easy. I have a 1982 4hp Briggs on my Snapper tiller. There was a 90* galvanized elbow coming out of the exhaust port, with a bezel nut to lock it down. Do not remove the elbow, even though it appears that you should. If you install the muffler without the elbow the m uffler will parallel the the vacuum for the carburetor and can melt the rubber couplers. Use the elbow to direct the heat away from the carburetor. Use a pipe wrench to lock down the bezel nut because the weight of the muffler, especially under vibration, can work loose and fall down on the tine belt cover and melt it. The bezel nut that comes with the muffler should also be used to lock down the muffler to the threaded intake bracket that comes with the muffler, not to replace the bezel nut for the elbow.
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