Intek™ (V-Twin)

Briggs and Stratton Engines present an easy-starting system, ReadyStart®, that makes the choke on riding mowers obsolete. Much like a car, the easy start riding lawn mower turns on with just the use of a key or push button start. Reliability and convenience combined like never before. The powerful Intek™ Series V-Twin riding mower engine delivers superior performance and durability. The Intek incorporates dozens of endurance-driving improvements -- including a Dynamically Balanced Crankshaft for a smoother mow and longer life -- along with the easily maintained lawn mower engine made possible by the Tool-less Air Cleaner Cover.

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Product Details

Intek Series™ Riding Mower Engine

More durable. More efficient. More powerful. Mows the lawn and lasts long.

ReadyStart® Engine Starting System

No prime, no choke, no worries. Just pull for power.

Overhead Valve (OHV) Engine Design

OHV engines run cooler and cleaner for better fuel economy and longer engine life.

Advanced Debris Management System

Keeps the engine clean by deflecting and ejecting grass and debris for a longer engine life.

Engine Type V-Twin, 4-stroke, air cooled, OHV (Overhead Valve)
Gross Horsepower 18*
Model Number 40N7
Engine Displacement (cc) 656cc
Cylinder Cast Iron Sleeve
Bore (mm) 79.2
Stroke (mm) 73.4
Oil Capacity (L) 1.9
Dry Weight (kg) 37.6
Length (mm) 479
Width (mm) 393
Height (mm) 327
Consumer Warranty 2 Year Domestic Limited†
Commercial Warranty 1 Year Commercial Limited†

*Power levels are stated gross horsepower at 3600rpm per SAE J1940 as rated by Briggs & Stratton.
†See briggsandstratton.com for warranty details.

Engine Type V-Twin, 4-stroke, air cooled, OHV (Overhead Valve)
Gross Horsepower 20*
Model Number 40N8
Engine Displacement (cc) 656cc
Cylinder Cast Iron Sleeve
Bore (mm) 79.2
Stroke (mm) 73.4
Oil Capacity (L) 1.9
Dry Weight (kg) 37.6
Length (mm) 479
Width (mm) 393
Height (mm) 327
Consumer Warranty 2 Year Domestic Limited†
Commercial Warranty 1 Year Commercial Limited†

*Power levels are stated gross horsepower at 3600rpm per SAE J1940 as rated by Briggs & Stratton.
†See briggsandstratton.com for warranty details.

Engine Type V-Twin, 4-stroke, air cooled, OHV (Overhead Valve)
Gross Horsepower 16*
Model Number 40R6
Engine Displacement (cc) 656cc
Cylinder Cast Iron Sleeve
Bore (mm) 79.2
Stroke (mm) 73.4
Oil Capacity (L) 1.9
Dry Weight (kg) 37.6
Length (mm) 479
Width (mm) 393
Height (mm) 327
Consumer Warranty 2 Year Domestic Limited†
Commercial Warranty 1 Year Commercial Limited†

*Power levels are stated gross horsepower at 3600rpm per SAE J1940 as rated by Briggs & Stratton.
†See briggsandstratton.com for warranty details.

Gross Horsepower 22*
Model Number 44N6
Engine Displacement (cc) 724
Cylinder Cast Iron Sleeve
Bore (mm) 79.2
Stroke (mm) 73.4
Oil Capacity (L) 1.9
Dry Weight (kg) 37.6
Length (mm) 479
Width (mm) 393
Height (mm) 327
Consumer Warranty 2 Year Domestic Limited†
Commercial Warranty 1 Year Commercial Limited†

*Power levels are stated gross horsepower at 3600rpm per SAE J1940 as rated by Briggs & Stratton.
†See briggsandstratton.com for warranty details.

Gross Horsepower 23*
Model Number 447N
Engine Displacement (cc) 724
Cylinder Cast Iron Sleeve
Bore (mm) 79.2
Stroke (mm) 73.4
Oil Capacity (L) 1.9
Dry Weight (kg) 37.6
Length (mm) 479
Width (mm) 393
Height (mm) 327
Consumer Warranty 2 Year Domestic Limited†
Commercial Warranty 1 Year Commercial Limited†

*Power levels are stated gross horsepower at 3600rpm per SAE J1940 as rated by Briggs & Stratton.
†See briggsandstratton.com for warranty details.

Engine Type V-Twin, 4-stroke, air cooled, OHV (Overhead Valve)
Gross Horsepower 24*
Engine Displacement (cc) 724
Cylinder Cast Iron Sleeve
Bore (mm) 79.2
Stroke (mm) 73.4
Oil Capacity (L) 1.9
Dry Weight (kg) 37.6
Length (mm) 479
Width (mm) 393
Height (mm) 327
Consumer Warranty 2 Year Domestic Limited†
Commercial Warranty 1 Year Commercial Limited†

*Power levels are stated gross horsepower at 3600rpm per SAE J1940 as rated by Briggs & Stratton.
†See briggsandstratton.com for warranty details.