This 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. It is the part that the piston is attached to. The piston is a central component of a two-cycle engine. It provides both the compression within the engine and it transfers the energy from combustion to the crankshaft which creates rotation. Please note one durable metal connecting rod is included, please note over-sized rods are sold separately.
Rod-connecting 794122
OEM part for: Briggs and Stratton, Toro
Part Number: 794122
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Compatibility
This part will fit the following 1157 machines
Toro
Briggs and Stratton
This item works with the following types of products:
- Lawn Tractor Parts
- Engine Parts
This part replaces obsolete part #: 697126, 791631
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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.
Lawnmower connecting rod broke due to low oil.
Tool Type
Lawn Mower
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, Adjustable Wrench
Remove broken rod and pieces and check for any other damage.
Refinish Crank journal with emery cloth.
Attach new rod to piston and install in engine.
Reassemble all components and use new gaskets where needed.
Broken Connection Road in Briggs & Stratton 20hp Intek Craftsman Lawn Tractor Mower engine
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Power Drill, Socket set, Wrench Set, Nutdriver
Disconnect Starter and Electrical Wire.
Remove Engine shroud.
Remove Intake manifold w/carb. Remove muffler.
Lower mower deck and unbolt mower transmission and blade pulley from crankshaft.
Unbolt and remove Engine from lawn tractor chassis.
Drain Oil.
Unbolt and remove cylinder head & remove push rods.
Unbolt and remove bottom crankcase cover.
Remove cam shaft.
Remove broken Connection Rod (note connection rod orientation on crankshaft, it will only work one way).
Push Piston up and out the cylinder.
Inspect engine case, crankshaft, piston and cylinder for any damage or scoring.
Remove retainer clip from connection rod piston pin and press out pin far enough to remove old connection rod and attach new one. Push connection rod pin back into place and replace retainer pin clip.
Check piston rings for any damage and replace if necessary.
Hone piston cylinder.
Using a piston ring compressor tool, compress piston rings on piston.
Lubricate piston cylinder. (I use Lucas Assembly Lube but regular oil will work) and slide piston back into the cylinder making sure the connection rod is orientate correctly.
Lubricate crankshaft with oil and attached connection rod. Torque to required specs.
Reinstall camshaft making sure to align timing mark on camshaft and crankshaft.
Remove and clean engine block and cover of ALL old gasket material.
Remove oil pump cover on the crankcase cover and remove oil pump gear and drive pin.
Place new crankcase gasket on engine block and replace crankcase cover. Torque to specs.
Align oil pump drive shaft with camshaft slot, replace gear and replace oil pump cover.
Remove and clean cylinder and cylinder head of ALL old head gasket material.
Place new cylinder head gasket on engine block, replace cylinder head and Torque to specs.
Remove OHV cover.
Loosen rocker arms until you are able to replace push rods.
Rotate engine until engine timing is at TDC. Adjust rocker arms to correct gap setting between rocker arm and valve.
Replace engine to lawn tractor (reverse of removal procedure).
ADD NEW OIL.
When you start using tractor again, do NOT run under full load for the first 5 to 10 hours. Change oil and filter (if equipped) after 10 hours.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
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