20.0 Gross HP*
-
656cc
-
5-Step Debris Management System
-
3-Year Commercial Engine Warranty***
Horsepower (HP)
20
Displacement (cc)
656
No. of Cylinders
2
Fuel Type
Gas
Features
Best-in-Class Debris Management
Patented 5-step cyclonic debris management system keeps harmful debris out of the engine, even under heavy-debris conditions.
High Efficiency Head Design
Stay productive even in the toughest conditions. Angled ports optimize tumble and mixture preparation for improved efficiency, smoother idle, lower emissions and more power.
Oil Cooler
Experience smoother engine performance and greater convenience with oil that is kept at an optimal temperature, ensuring better lubrication and extended oil change intervals.
Vanguard Service and Support
Vanguard superior support solutions minimizes downtime with 24/7 U.S based technical support and industry-leading 3-year global commercial limited engine warranty***.
Specifications
| 20.0 Gross HP* | |
| Model Number | 40T8 |
| HP (Gross)* | 20.0 |
| Engine Displacement (cc) | 656 |
| Engine Configuration | Vertical |
| Bore (in) | 2.97 |
| Stroke (in) | 2.89 |
| Oil Capacity (oz) | 64 |
| Compression Ratio | 8.5:1 |
| Air Cleaner | Integral Cyclonic Air Filter |
| Ignition System | Magnetron® Electronic Ignition |
| Lubrication System | Full Pressure Lubrication with Oil Filter |
| Length (in) | 19.3 |
| Width (in) | 17.6 |
| Height (in) | 15.7 |
| Weight (lbs) | 82.0 |
| Certified Power Rating | Download Power Curve |
| Commercial Engine Warranty** | 3-Year Limited |
| Operator's Manuals |
*All power levels are stated gross HP at 3,600 RPM per SAE J1940.
**See operator's manual or dealer for complete warranty details.
***Three-year commercial limited warranty applies to engines manufactured after June 30, 2017.
Support

Manuals
Download the operator's manual or illustrated parts list for your Vanguard™ engine by searching your engine model number.

Tips & Troubleshooting
Have a question? Search our Frequently Asked Questions to find answers related to model specifications, routine maintenance, repair or troubleshooting.

Dealer Locator
World class parts delivery, industry-leading global warranties and unparalleled service & training keeps your equipment out of the shop and on the jobsite.

Commercial Limited Warranty
Three-year commercial engine warranty for all applications. See operator's manual or dealer for complete warranty details.
Product Literature

Learn more about Briggs & Stratton® CXi Series V-twin engines by downloading our literature here.