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48M877-5111-G5 Briggs and Stratton Engine - Overview

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Aluminum Push Rod – Part Number: 690982
No Longer Available
Aluminum Push Rod
Part #690982
This is a replacement push rod for your lawn tractor engine. It is made of aluminum and is the push rod used for the exhaust valve. Occasionally, the push rod in your engine can become damaged, and will need to be replaced before your engine runs at full capacity. This push rod is approximately 6 inches in length, and is an OEM part sourced directly from the manufacturer.
Gasket-rocker Cover – Part Number: 690971
$9.42
In Stock
Gasket-rocker Cover
★★★★★
★★★★★
(1)
Part #690971
Authentic Manufacturer Sourced replacement part used on a variety of Engines. This rocker cover gasket is for the cylinder head. It is sold Individually. It provides a strong seal to protect from leaks. Over time gaskets tend to deteriorate and would need to be replaced.
Engine Oil Seal – Part Number: 795387
$9.69
In Stock
Engine Oil Seal
★★★★★
★★★★★
(2)
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 shaft, 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.
Engine Oil Seal – Part Number: 391086S
$8.09
In Stock
Engine Oil Seal
★★★★★
★★★★★
(1)
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. Refer to your make, model and diagram to ensure you're choosing the right part. This part comes in black and gray.
Engine Oil Filter – Part Number: 696854
$17.25
In Stock
Engine Oil Filter
Part #696854
This genuine OEM oil filter helps to remove harmful contaminants from engine oil. It is designed for a variety of Engines. It is sold Individually. This part maintains optimum performance of your engine in accordance with applicable EPA emissions regulations. It is recommended to replace an Oil Filter at least once a season.
Crankcase Gasket With Bolts – Part Number: 594195
$53.18
In Stock
Crankcase Gasket With Bolts
Part #594195
This genuine crankcase gasket is used on small lawn and garden engines. 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. It is made out of composite material and it is sold individually. To complete this repair you will need a wrench. Includes one (1) gasket and ten (10) bolts. This will need to be tightened with torque to 300 inch pounds.
Gasket-exhaust – Part Number: 690970
$6.40
In Stock
Gasket-exhaust
Part #690970
This is a genuine OEM sourced replacement exhaust gasket. It is specially made for use with Briggs and Stratton engines commonly used on Toro lawn and garden equipment. Its purpose is to provide an air-tight seal between the carburetor and the exhaust tube. Over time this gasket will deteriorate requiring replacement. Please note, this composite gasket is sold individually. To replace this part you will need a wrench.
Gear-governor – Part Number: 793338
$40.69
Special Order
Gear-governor
★★★★★
★★★★★
(1)
Part #793338
Ensure smooth and balanced operation of your Briggs and Stratton engine with this exceptional Gear Governor. It's intricately designed to maintain control over the speed of the engine, contributing to its performance and efficiency. Crafted by industry-leading brand, Briggs and Stratton, this gear governor guarantees durability and reliability. Experience enhanced functionality and prolonged engine life with this essential element. Designed for consistent fit and easy installation, upgrade your engine's performance with Briggs and Stratton's Gear Governor.
Gasket-intake – Part Number: 690949
$6.40
In Stock
Gasket-intake
Part #690949
It is an authentic part that is supplied by the original equipment manufacturer for use with Briggs and Stratton engines commonly installed on lawn and garden equipment. The purpose of this gasket is to provide a tight seal for the intake manifold, unfortunately, over time the material will wear out and may begin to fail eventually requiring a replacement to maintain top performance. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality item is made of durable composite material and is sold individually.
Screw – Part Number: 691108
$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.
Hose-vacuum – Part Number: 791766
$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 requiring 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.
Seal-valve – Part Number: 690968
$15.97
Special Order
Seal-valve
Part #690968
This is a genuine OEM part. The Briggs & Stratton valve seal is used on many lawn tractor machines. The metal part stops oil from moving into the cylinder from the valve stem. This item is often fastened to the intake valve and the valve keeper. A screwdriver, socket set and wrench set are required for the installation. The metal valve seal is sold individually.

Common Symptoms of the 48M877-5111-G5

How this model fails, and the parts that fix it.

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the head blew a vaulve guide destoying push rods
34 of 45 people found this instruction helpful.
  • Robert from WHITMAN, MA
  • Easy
  • More than 2 hours
about 6 hours to tear down and replace don't do it in the hot sun needed more breaks takes longer, but the new factory heads did it started up 185 lbs of compression almost back to new, so much more power than old one's. FYI take off the motor cover every year clean out the debris (grass-mouse nest- and oil) it blocks the air and COOKS THE HEAD it only takes short time and will make that motor last a little longer but it is a BRIGGS engine
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Engine quit due to valve guide sliding out causing rocker arm to be immovable resulting in bent push rods.
19 of 22 people found this instruction helpful.
  • D from HUNTSVILLE, AL
  • Really Easy
  • 30 - 60 mins
  • Nutdriver, Socket set
Clean engine with a Gunk type product. Remove valve cover. Loosen bolts and remove old cylinder head. One bolt is located inside valve cover area. Remove old gasket and inspect and clean that surface. Attach new head with new gasket using existing bolts. Torque to 18'#s with a cross type pattern. Attach new rocker arms and push rods. Set valve clearance to .004 - .006. Attach valve cover with gasket. Check oil level. Start and let it warm up. Let cool remove cover then check valve clearance again. Replace cover.
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governor not working
17 of 29 people found this instruction helpful.
  • rodney from MUSCATINE, IA
  • A Bit Difficult
  • More than 2 hours
  • Screw drivers, Socket set
Had to pull the engine off the rider mower. Drained the oil took shield off the flywheel. Set it upside down on a 5 gal bucket. Took a 7/16 hand wrench to remove governor lever from bottom of engine. Left it in its location. Pulled 10 1/2 " bolts. Split engine case. Found the old governor had broke into pieces. Had to use a magnet t o remove all the pieces. Removed the small clip and removed gear. Lubed shaft slid new on put new clip on. Lined governor weights with center piece tapped it in place very lightly. Cleaned gasket flanges pulled the shaft seal. Used the old seal as a seal driver. When putting the cover back on make sure the seal dont roll out. Take a mini screwdriver and tuck it in around shaft. Put bolts back in and tighten like instructions
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