Briggs & Stratton Powerbuilt Vertical Engine with Electric Start — 10.5 HP, 1in. x 3 5/32in. Shaft, Model# 215807-3025-G5 Item# 70920

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Engines
Briggs & Stratton Vertical
241cc - 390cc Briggs & Stratton Vertical Engines
Item# 70920

Briggs & Stratton Powerbuilt Vertical Engine with Electric Start — 10.5 HP, 1in. x 3 5/32in. Shaft, Model# 215807-3025-G5

Item# 70920

Only $599.99

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Delivery Time: 6 - 11 Business Days

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Overview

Briggs & Stratton 10.5 HP Powerbuilt™ OHV Vertical Engine. Overhead valve design runs cooler and cleaner, delivering more power, longer engine life and improved fuel economy. Improved breather system lowers oil consumption and reduces emissions.

Features + Benefits

Displacement: 21 cu. in.
Float carburetor for easy, consistent starting
Balance-Tek Low Vibration System
Fuel tank not included
Muffler and exhaust manifold included
Cast iron cylinder for extended life

What's Included

(1) Engine

See Available Accessories

Content Links

	Engines Buyer's Guide
	70920 Product Manual

Key Specs

Engine Displacement (cc)	344
Start Type	Electric w/recoil backup
Application	Riding lawn mowers, lawn tractors
Engine Type	Power built OHV
Rated Power (HP)	10.5
Shaft Output	Vertical
Shaft Diameter (in.)	1
Shaft Length (in.)	3 5/32
Shaft End Tapped (Diameter (in.)/Threads per inch)	7/16–20
Shaft Rotation (From PTO Shaft Side)	Counterclockwise
Bearing Type	Plain
Cylinders (qty.)	1
Cylinder Bore	Cast iron
Bore x Stroke (in.)	3.44 x 2.26
Cooling System	Air cooled
Air Cleaner Type	Dual element
Fuel Tank	Not included
Fuel Type	Gasoline
Oil Capacity (qt.)	1.5 (48 oz.)
Lubrication System	Splash
Low Oil Alert	No
Ignition System	Electronic
Governor System	Mechanical
Carburetor	Float
Throttle Control	Remote
Max. RPM	3,600
Muffler Included	Yes
Bolt Circle (in.)	10
Dimensions L x W x H (in.)	18 x 15 1/2 x 12 1/2
Manufacturer Warranty	24 months parts / 24 months labor
Ship Weight	68.0 lbs
Item#	70920

Brand

	Shop for Briggs & Stratton

Review Terms + Conditions

Print Reviews for Briggs & Stratton Powerbuilt Vertical Engine with Electric Start — 10.5 HP, 1in. x 3 5/32in. Shaft, Model# 215807-3025-G5

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70920 Product Manual

Q & A Terms + Conditions

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Manufacturer Warranty: 24 months parts / 24 months labor

Protect Your Purchase Beyond The Manufacturer's Warranty With Service Protection Plus!

Extended Service Plan Description (learn more)	1 Year	2 Year
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Briggs & Stratton Briggs & Stratton Powerbuilt™ Vertical Engine with Electric Start - 10.5 HP, 1in. x 3 5/32in. Shaft, Model# 215807-0025-G1

Overall Rating:

4 / 5

1 of 1(100%)would recommend this product to a friend.

Share this Product:

Briggs & Stratton 10.5 HP Powerbuilt OHV Vertical Engine. Overhead valve design runs cooler and cleaner, delivering more power, longer engine life and improved fuel economy. Improved breather system lowers oil consumption and reduces emissions. Engine Displacement (cc): 344, Start Type: Electric with recoil backup, Application: Riding lawn mowers and lawn tractors, Engine Type: Power Built - OHV, Rated Power (HP): 10.5, Shaft Output: Vertical, Shaft Diameter (in.): 1, Shaft Length (in.): 3 5/32, Shaft End Tapped (Diameter (in.)/Threads per inch): 7/16 - 20, Shaft Rotation (From PTO Shaft Side): Counterclockwise, Bearing Type: Plain, Cylinders (qty.): 1, Cylinder Bore: Aluminum alloy, Bore x Stroke (in.): 3.44 x 2.26, Cooling System: Air cooled, Air Cleaner Type: Dual element, Fuel Tank: Not included, Fuel Type: Gasoline, Oil Capacity (qt.): 1.5 (48 oz.), Lubrication System: Splash, Low Oil Alert: No, Ignition System: Electronic, Governor System: Mechanical, Carburetor: Float, Throttle Control: Remote, Max. RPM: 3,600, Muffler Included: Yes, Bolt Circle (in.): 10, Dimensions L x W x H (in.): 18 x 15 1/2 x 12 1/2 Displacement: 21 cu. in. Float carburetor for easy, consistent starting Balance-Tek Low Vibration System Fuel tank not included Muffler and exhaust manifold included

Briggs & Stratton Briggs & Stratton Powerbuilt™ Vertical Engine with Electric Start - 10.5 HP, 1in. x 3 5/32in. Shaft, Model# 215807-0025-G1

Overall Rating:

4 / 5

A good value,

December 2, 2008

By enginetek

from Fort Worth, TX

"This newer, OHV engine from Briggs and Stratton was designed to replace the old flathead, side-valve 10.5hp model. It does its job well. I have one of these, as well as a 9-hp version (basically the same engine) in use at this time. It starts easily with the electric starter, even when cold, and seems to run well. Power is adequate, if not as enduring (torque) as a flathead.

The only problem I have noticed with this engine is a tendency to kick back when starting with the recoil (manual) starter. You must be sure to bring the piston up to TDC on the compression stroke before letting the rope fly. Why? More compresson makes even a new engine want to spring back at times. It's a design issue that's more of an annoyance than a problem. Higher compression helps this engine to run more efficiently; the tradeoff being the starting issue as noted.

Overall, though, I enjoy using, and will continue to use, Briggs and Stratton engines on my equipment. It's hard to argue with my ol' reliable Briggs in use on another piece of equipment. It was set on fire (due to a fuel leak), overheated, has the intake valve seat peened in, has a scored cylinder, and knocks insistently. Yet, it fires right up every time. One puff of smoke, and off it goes. Ready to power through 2 ft of grass once more. I rest my case..."