12AVD2B8799 MTD Lawn Mower - Overview
Models starting with 12AVD2B8799
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Mulching Blade
PartSelect #: PS9169783
Manufacturer #: 942-0741A
This authentic replacement blade is manufactured for use with Craftsman walk-behind lawnmowers and is designed to deliver clean, efficient cuts. Measuring 21 inches in length, the blade features an an...
$34.74
In Stock
Plug-spark
PartSelect #: PS9281094
Manufacturer #: 491055S
This spark plug is designed to provide reliable ignition and efficient fuel combustion in small engine applications. Built for consistent performance and durability, it helps maintain smooth operation...
$6.40
In Stock
Lawn Mower Trail Shield
PartSelect #: PS9103444
Manufacturer #: 731-07203
This trail shield, also referred to as a rear skirt, is designed for use with various makes and models of lawn mowers and is a genuine OEM part. This trail shield is sold as an individual part without...
$16.86
In Stock
Cover-air Cleaner
PartSelect #: PS11829389
Manufacturer #: 595658
This is a an authentic OEM sourced replacement cover designed for Briggs and Stratton engines. It is used to secure the air filter element which is sold separately and it from dust and other contamina...
$8.29
In Stock
Filter-a/c Cartridge
PartSelect #: PS11829331
Manufacturer #: 593260
This is an original manufacturer-approved replacement part which is specially designed for use with Briggs and Stratton engines commonly installed on lawn and garden equipment. Its purpose is to filte...
$16.87
In Stock
Bell Blade Support
PartSelect #: PS17055954
Manufacturer #: 736-0524B-1
The Blade Support (Bell Blade Support) fits between the bottom of the blade and the blade bolt to provide support for the blade. It is installed underneath the cutting deck on the blade. Installation ...
$6.40
In Stock
Key-flywheel
PartSelect #: PS8925657
Manufacturer #: 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 Plier...
$6.40
In Stock
Seal-oil
PartSelect #: PS8948679
Manufacturer #: 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 ...
$7.47
In Stock
Screw
PartSelect #: PS9036503
Manufacturer #: 590586
This screw is an authentic Briggs and Stratton replacement part. It is compatible with and commonly used in over 150 models of engines. This screw has multiple functions varying from machine to machin...
$6.40
In Stock
Nut-flglk
PartSelect #: PS9299574
Manufacturer #: 712-04064
Also referred to as a Lock Nut or Flange Lock, this nut is designed for use with various lawn and garden equipment. The purpose of this part is to hold parts in place while resisting loosening when pr...
$6.40
In Stock
Screw, 3/8-24 x 1.50 (w/25mm Blade Adapter)
PartSelect #: PS9088496
Manufacturer #: 710-1044
The hex bolt attaches to the washer and the square key. This part is an OEM from Craftsman for use in snowblowers and lawn mowers. It is available as an individual replacement part and is made of meta...
$6.40
On Order
Common Symptoms of models starting with 12AVD2B8799
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Blown Head Gasket
This was an OHV motor so in order to get to the head, you must remove the valve cover and remove the push rods. Remove all four head bolts in an even star pattern. Remove the old gasket and scrape all remaining gasket gunk. Put new gasket on and tighten head back on with an even star pattern. Slide push rods back in and adjust valves to .
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004 of an inch and put valve cover back on and start it up!
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Parts Used:
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Isaiah from CHAMBERSBURG, PA
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Difficulty Level:Really Easy
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Total Repair Time:Less than 15 mins
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Tools:Screw drivers, Socket set
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Blown Head Gasket
Remove the top cover and pull cord assembly. Remove the muffler cover. Lift off the gas tank and disconnect from the air filter box. Remove the air filter box and carb from the head cover as a single unit. Remove the head cover. You can leave the valve cover in place. Remove old gasket material. Clean surfaces. Replace gasket. Reassemble
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. *if the valve stems come loose from their seats or rockers, remove the valve cover and reseat. Reassembly is the opposite of disassembly. Happy mowing.
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Parts Used:
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Michael from BOAZ, AL
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Difficulty Level:Really Easy
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Total Repair Time:30 - 60 mins
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Tools:Nutdriver, Socket set
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Recoil broke apart
Removed cover then it required removing the broken recoil assembly to replace it with new one. New recoil assembly fit perfectly.
Parts Used:
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Dexter from MAULDIN, SC
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Difficulty Level:Really Easy
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Total Repair Time:30 - 60 mins
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Tools:Nutdriver, Screw drivers, Wrench set
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