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21R707 (0133-B1) Briggs and Stratton Engine - Overview
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$9.69
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Engine Oil Seal
Part #795387
This OEM Seal-Oil (PTO Side), also called the Oil Seal, is a Black, Nitrile Rubber, 2/14 O.D., individually sold part which is installed using a Seal Puller. Customers rate the installation difficulty as Medium.
This part provides a seal around the crank shaft and engine block. When installing onto the engine block around the crank shaf...Read moret, use something that makes contact around the entire seal, like a large socket or pipe, and tap into place evenly, ensuring that the housing is clean and dry. If the part is broken, likely due to fatigue, there will be leaking oil, and this part should be replaced using the model number on the original part to confirm it is the right fit for your model.
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$8.09
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Engine Oil Seal
Part #391086S
The Oil Seal is a manufacturer-approved rubber part which provides a seal between the crankcase and crankshaft by attaching around the axle shaft on the crankhouse housing. Installation is rated as "Medium" difficulty and requires a screw driver, wrench set and seal puller. A broken seal will cause a leak, and the part must be replaced. R...Read moreefer to your make, model and diagram to ensure you're choosing the right part. This part comes in black and gray.
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$13.02
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Tube-breather
Part #794683
This item is an authentic OEM replacement part that is intended to be used with small engines from Briggs & Stratton. The breather tube is used to guide the direction of excess gasses and fluid that escape the engine from a higher level of internal pressure. The breather tube is a single item, please see the model diagram for related parts.
$6.40
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Filter Fuel Mega Pack
Part #394358B
This Fuel Filter is a white plastic part attached within the fuel delivery system between the fuel tank and carburetor. Installation is rated as "Easy" and requires a set of pliers and a screwdriver. If broken, there may be a leak or blockage and the part should be replaced. The part may also need to be replaced according to manufacturer'...Read mores specifications, and is a manufacturer-approved part. Refer to your make, model and diagrams to ensure this part is correct.
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$6.40
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Seal-o Ring
Part #691917
The Seal-O Ring, also known as the gasket, is red in color, made of rubber, and is an OEM part that requires some skill to replace. This part is designed to create a seal between the carburator and manifold, to prevent air from entering. If your engine loses power, creates a hissing noise, or if the gasket appears damaged or your engine r...Read moreunning improperly it may be time to replace the part.
If you run the engine and spray the outside of the carburator with soapy water, you can test whether or not the gasket is leaking by listening to the sounds produced. If the sound smooths out then you've found your leaky gasket. Damage may occur over time, especially if the part dries out, and make the part appear stretched or worn out.
When making this medium-difficulty repair, make sure the new gasket is fitted properly between the carburetor and intake manifold.
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$9.69
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Gasket-crkcse/015
Part #697110
Genuine OEM replacement part used on a variety of Engines. This item is made with Composite Material and it is sold individually. Its purpose is to make an air tight seal so that no air/oil leakage occurs. Over time this gasket will deteriorate and will need to be replaced. The gasket measures .015 Thick.
$64.16
In Stock
Engine Ignition Coil
Part #595304
Ignition coil 595304 is an original equipment manufacturer (OEM) part that fits Briggs & Stratton lawn and garden equipment engine models 31R907-0018-G1, 33R877-0002-G1, 33R877-0009-G1 and 33S877-0015-G1.
Ignition coil 595304 generates the voltage for the spark plug.
Set the ignition coil air gap at 10/1000-in to 14/1000-in.
Torque the ignition coil screws to 30-lb-in.
$13.41
In Stock
Cap-valve
Part #691843
It is a genuine item that is supplied by the original equipment manufacturer for use with Briggs and Stratton engines that are commonly installed on Toro lawn and garden equipment. The cap attaches on top of the valve stem and provides a contact place for the rocker arm. Refer to the diagrams for your model to ensure the exact location an...Read mored application of this part. You will need a wrench set and pliers to perform this repair. Keep in mind this high-quality cap-valve is made of durable metal and is sold as an individual item.
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$12.92
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Gasket-float Bowl
Part #698781
This is a genuine manufacturer sourced replacement part designed for lawn and garden equipment engines. This gasket provides an air-tight seal for the float bowl. Over time this gasket will shrink, become brittle and crack allowing for air leaks. At that time it should be replaced. It is made out of rubber material and it is sold individually. Replacing this item you would need a screwdriver.
$6.40
In Stock
Screw
Part #691108
This is an authentic OEM sourced replacement part that is intended to be used with lawnmower engines and outboard motors from Briggs & Stratton and Toro. The metal screw is used to secure the rocker cover to the cylinder head assembly. This item is available as an individual replacement part.
$14.13
In Stock
Gasket-cylinder Head
Part #273280S
This is a genuine OEM part. The cylinder head gasket is made for use with many tractor engines. The cardboard composite gasket has been designed to prevent damage to engine parts and absorb fuel leakage. A screwdriver and a wrench may be needed to make the removal and replacement. This part is sold individually. It is recommended to refer to engine manual and diagrams for further instruction.
$10.60
In Stock
Hose-vacuum
Part #791766
This genuine part is sourced directly from the original equipment manufacturer. It is specially designed for use with Briggs and Stratton engines commonly installed on lawn and garden equipment. The purpose of this hose is to transfer vacuum from the engine. Unfortunately, over time the material may wear out and begin to crack eventually ...Read morerequiring a replacement. Make sure to check the diagrams of your model for the exact location and the correct installation of this part. Note, this item includes one durable rubber hose and two metal clamps to secure it.
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Common Symptoms of the 21R707
How this model fails, and the parts that fix it.
See how others fixed this model. Time, tools, difficulty, and steps that lead to victory!
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Stopped running. Turned to be a bent intake push rod and broken rocker arm
9 of 15 people
found this instruction helpful.
Removed head. Replaced both rocker arms, intake pus rod, push rod guide exhaust and head gaskets. Torqued head in 3 stages to 216 in/lbs. gapped intake to .004 and exhaust to .006 at TDC
Added oil and gas. Now running great
If you need to replace push rods use steel (exhaust) they are the same length
The engine ... Read more was a Briggs & Stratton 217802 0113 E10604 (2006 year date code)
I used the following
796189 gasket
272475S gasket
697494 push rod
690822 push rod guide
691751 rocker arms
Added oil and gas. Now running great
If you need to replace push rods use steel (exhaust) they are the same length
The engine ... Read more was a Briggs & Stratton 217802 0113 E10604 (2006 year date code)
I used the following
796189 gasket
272475S gasket
697494 push rod
690822 push rod guide
691751 rocker arms
Read less
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